[특허]Control valve assembly

[미국특허] Control valve assembly 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-003/32 F16K-001/52 F16K-011/07 C02F-001/00 C02F-001/469 F16K-037/00
출원번호	US-0663150 (2015-03-19)
등록번호	US-9903485 (2018-02-27)
발명자 / 주소	Averbeck, David J. Ellis, George Shoemaker
출원인 / 주소	Pentair Residential Filtration, LLC
대리인 / 주소	Quarles & Brady LLP
인용정보	피인용 횟수 : 0 인용 특허 : 228

초록 ▼

Embodiments of the invention provide a control valve assembly that includes a piston slidably seated within a valve chamber and moveable between multiple positions to adjust a flow rate of fluid through the control valve assembly. The piston comprises flow zones and seal surfaces to define variable

대표청구항 ▼

1. A control valve assembly comprising; a valve body;a valve chamber defined by the valve body; anda piston slidably seated within the valve chamber and movable between multiple positions to adjust a flow rate of fluid through the control valve assembly;wherein the piston extends from a tip end to a base end along a piston axis, and further comprises: a tip flow zone proximate the tip end defining a tip variable flow rate related to the position of the piston within the valve chamber, wherein the tip flow zone has a non- uniform stepped slope,a tip seal surface adjacent to the tip flow zone and configured to selectively seal with the valve chamber;an intermediate flow zone adjacent to the tip seal surface defining an intermediate variable flow rate related to the position of the piston within the valve chamber;an intermediate seal surface adjacent to the intermediate flow zone and configured to selectively seal with the valve chamber;a base flow zone adjacent to the intermediate seal surface defining a base variable flow rate related to the position of the piston within the valve chamber; anda base seal surface adjacent to the base flow zone and configured to selectively seal with the valve chamber. 2. The control valve assembly of claim 1 wherein the tip flow zone comprises a plurality of stepped cylindrical rings of increasing circumference in a direction from the tip end to the base end along the piston axis. 3. The control valve assembly of claim 1 wherein the tip flow zone comprises: a first stepped cylindrical ring having a first circumference;a second stepped cylindrical ring having a second circumference greater than the first circumference and positioned adjacent to the first stepped cylindrical ring; anda third stepped cylindrical ring having a third circumference greater than the second circumference and positioned adjacent to the second stepped cylindrical ring. 4. The control valve assembly of claim 3 wherein the tip flow zone further comprises a skewed ring defining a conical frustum and positioned adjacent to the third stepped ring. 5. The control valve assembly of claim 1 wherein the intermediate flow zone comprises a plurality of stepped cylindrical rings of increasing circumference in a direction from the tip end to the base end along the piston axis. 6. The control valve assembly of claim 1 wherein the intermediate flow zone comprises: a first beveled rim skewed relative to the piston axis;a first stepped cylindrical ring having a first circumference and positioned adjacent to the first beveled ring;a second stepped cylindrical ring having a second circumference greater than the first circumference and positioned adjacent to the first stepped cylindrical ring; anda second beveled rim skewed relative to the piston axis, and positioned adjacent to the second stepped cylindrical ring. 7. The control valve assembly of claim 1 wherein the base flow zone comprises: a first beveled rim skewed relative to the piston axis;a second beveled rim skewed relative to the piston axis and spaced from the first beveled rim along the piston axis; anda plurality of fingers extending between the first beveled rim and the second beveled rim defining a plurality of gaps in the base flow zone, wherein the gaps are in fluid communication with an interior chamber within the piston. 8. The control valve assembly of claim 7, wherein: the plurality of gaps are circumferentially spaced equidistant about the base flow zone; andthe interior chamber within the piston extends along the piston axis. 9. The control valve assembly of claim 1 wherein the tip flow zone is generally conical and expands radially outward along a direction from the tip end to the tip seal surface. 10. The control valve assembly of claim 9 wherein the tip flow zone comprises: a first conical segment skewed relative to the piston axis at a first orientation; anda second conical segment adjacent to the first conical segment and skewed relative to the piston axis at a second orientation that is different from the first orientation. 11. The control valve assembly of claim 9 wherein a portion of the conical tip flow zone expands radially outward with a uniform slope. 12. The control valve assembly of claim 1 wherein the intermediate flow zone comprises: a first beveled rim skewed relative to the piston axis;a second beveled rim skewed relative to the piston axis and axially spaced from the first beveled rim along the piston axis;a necked cylindrical portion positioned adjacent to the first beveled ring; anda conical surface flaring radially outward from the necked cylindrical portion toward the second beveled rim. 13. The control valve assembly of claim 1 wherein the tip flow zone includes at least one geometric opening. 14. The control valve assembly of claim 13 wherein the at least one geometric opening includes a plurality of geometric openings circumferentially spaced about the piston proximate the tip end of the piston. 15. The control valve assembly of claim 13 wherein the at least one geometric opening forms an equilateral triangular opening. 16. The control valve assembly of claim 15 wherein a peak of the equilateral triangular opening is oriented proximate the tip end of the piston and a base of the equilateral triangular opening is oriented generally perpendicular to the piston axis. 17. The control valve assembly of claim 15 wherein a base of the equilateral triangular opening is oriented proximate the tip end of the piston and is oriented generally perpendicular to the piston axis. 18. The control valve assembly of claim 1 wherein at least one of the tip seal surface, the intermediate seal surface, or the base seal surface is generally cylindrical and configured to seal with a generally cylindrical interior surface of the valve chamber. 19. A control valve assembly comprising: a valve body;a valve chamber defined by the valve body; anda piston slidably seated within the valve chamber and movable between multiple positions to adjust a flow rate of fluid through the control valve assembly;wherein the piston extends from a tip end to a base end along a piston axis, and further comprises: a tip flow zone proximate the tip end defining a tip variable flow rate related to the position of the piston within the valve chamber;a tip seal surface adjacent to the tip flow zone and configured to selectively seal with the valve chamber;an intermediate flow zone adjacent to the tip seal surface defining an intermediate variable flow rate related to the position of the piston within the valve chamber;an intermediate seal surface adjacent to the intermediate flow zone and configured to selectively seal with the valve chamber;a base flow zone adjacent to the intermediate seal surface defining a base variable flow rate related to the position of the piston within the valve chamber; anda base seal surface adjacent to the base flow zone and configured to selectively seal with the valve chamber; andwherein at least one of the tip flow zone and the intermediate flow zone comprises a plurality of stepped cylindrical rings of increasing circumference in a direction from the tip end to the base end along the piston axis. 20. A control valve assembly comprising: a valve body;a valve chamber defined by the valve body; anda piston slidably seated within the valve chamber and movable between multiple positions to adjust a flow rate of fluid through the control valve assembly;wherein the piston extends from a tip end to a base end along a piston axis, and further comprises: a tip flow zone proximate the tip end defining a tip variable flow rate related to the position of the piston within the valve chamber, wherein the tip flow zone comprises: a first stepped cylindrical ring having a first circumference;a second stepped cylindrical ring, having a second circumference greater than the first circumference and positioned adjacent to the first stepped cylindrical ring; anda third stepped cylindrical ring having a third circumference greater than the second circumference and positioned adjacent to the second stepped cylindrical ring;a tip seal surface adjacent to the tip flow zone and configured to selectively seal with the valve chamber;an intermediate flow zone adjacent to the tip seal surface defining an intermediate variable flow rate related to the position of the piston within the valve chamber;an intermediate seal surface adjacent to the intermediate flow zone and configured to selectively seal with the valve chamber;a base flow zone adjacent to the intermediate seal surface defining a base variable flow rate related to the position of the piston within the valve chamber; anda base seal surface adjacent to the base flow zone and configured to selectively seal with the valve chamber. 21. A control valve assembly comprising: a valve body;a valve chamber defined by the valve body: anda piston slidably seated within the valve chamber and movable between multiple positions to adjust a flow rate of fluid through the control valve assembly;wherein the piston extends from a tip end to a base end along a piston axis, and further comprises: a tip flow zone proximate the tip end defining a tip variable flow rate related to the position of the piston within the valve chamber;a tip seal surface adjacent to the tip flow zone and configured to selectively seal with the valve chamber;an intermediate flow zone adjacent to the tip seal surface defining an intermediate variable flow rate related to the position of the piston within the valve chamber, wherein the intermediate flow zone comprises: a first beveled rim skewed relative to the piston axis;a first stepped cylindrical ring having a first circumference and positioned adjacent to the first beveled ring;a second stepped cylindrical ring having a second circumference greater than the first circumference and positioned adjacent to the first stepped cylindrical ring; anda second beveled rim skewed relative to the piston axis and positioned adjacent to the second stepped cylindrical ring;an intermediate seal surface adjacent to the intermediate flow zone and configured to selectively seal with the valve chamber;a base flow zone adjacent to the intermediate seal surface defining a base variable flow rate related to the position of the piston within the valve chamber; anda base seal surface adjacent to the base flow zone and configured to selectively seal with the valve chamber. 22. A control valve assembly comprising: a valve body;a valve chamber defined by the valve body; anda piston slidably seated within the valve chamber and movable between multiple positions to adjust a flow rate of fluid through the control valve assembly;wherein the piston extends from a tip end to a base end along a piston axis, and further comprises: a tip flow zone proximate the tip end defining a tip variable flow rate related to the position of the piston within the valve chamber;a tip seal surface adjacent to the tip flow zone and configured to selectively seal with the valve chamber;an intermediate flow zone adjacent to the tip seal surface defining an intermediate variable flow rate related to the position of the piston within the valve chamber;an intermediate seal surface adjacent to the intermediate flow zone and configured to selectively seal with the valve chamber;a base flow zone adjacent to the intermediate seal surface defining a base variable flow rate related to the position of the piston within the valve chamber, wherein the base flow zone comprises: a first beveled rim skewed relative to the piston axis;a second beveled rim skewed relative to the piston axis and spaced from the first beveled rim along the piston axis; anda plurality of fingers extending between the first beveled rim and the second beveled rim defining a plurality of gaps in the base flow zone, wherein the gaps are in fluid communication with an interior chamber within the piston; anda base seal surface adjacent to the base flow zone and configured to selectively seal with the valve chamber. 23. A control valve assembly comprising: a valve body;a valve chamber defined by the valve body; anda piston slidably seated within the valve chamber and movable between multiple positions to adjust a flow rate of fluid through the control valve assembly;wherein the piston extends from a tip end to a base end along a piston axis, and further comprises: a tip flow zone proximate the tip end defining a tip variable flow rate related to the position of the piston within the valve chamber, wherein the tip flow zone includes at least one geometric opening, the at least one geometric opening forms an equilateral triangular opening;a tip seal surface adjacent to the tip flow zone and configured to selectively seal with the valve chamber;an intermediate flow zone adjacent to the tip seal surface defining an intermediate variable flow rate related to the position of the piston within the valve chamber;an intermediate seal surface adjacent to the intermediate flow zone and configured to selectively seal with the valve chamber;a base flow zone adjacent to the intermediate seal surface defining a base variable flow rate related to the position of the piston within the valve chamber; anda base seal surface adjacent to the base flow zone and configured to selectively seal with the valve chamber.

이 특허에 인용된 특허 (228) 인용/피인용 타임라인 분석

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Vinas Paul F. (Santa Ana CA) Spears Dave (Laguna Niguel CA) Herzog Gregg (Hesperia CA) Slovak Robert (Reno NV) Slovak Jack (Reno NV), Membrane filtration system with control valves for optimizing flow rates.
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Proulx Andrew G. (Concord MA), Membrane module assembly.
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Goldstein Arthur L., Membrane-frame for processes including electrodialysis.
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Dietrich Joseph J. (Painesville OH) Niksa Andrew J. (Concord OH) Stewart James J. (Chardon OH), Metal removal apparatus.
상세보기
Farmer Joseph C., Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes.
상세보기
Tran Tri D. ; Farmer Joseph C. ; Murguia Laura, Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes.
상세보기
Farmer Joseph (Tracy CA), Method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes.
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Garde, Arvid; Rype, Jens-Ulrik; Jonsson, Gunnar, Method and apparatus for isolation of ionic species from a liquid.
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Su Qingquan,JPX ; Nakanishi Syu,JPX ; Saito Takayuki,JPX ; Nakatsu Masato,JPX, Method and apparatus for preventing scale from precipitating in producing deionized water.
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Tessier David Florian,CAX ; Glegg Robert,CAX ; Barber John H.,CAX, Method and apparatus for preventing scaling in electrodeionization units.
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Terada Ichiro,JPX ; Toda Hiroshi,JPX ; Iwamoto Junjiro,JPX ; Umemura Kazuo,JPX ; Komatsu Ken,JPX ; Hoshi Tohru,JPX ; Huehnergard Mark Philip,CAX ; Tessier David Florian,CAX ; Towe Ian Glenn,CAX, Method and apparatus for producing deionized water.
상세보기
Tessier David Florian,CAX ; Kosir Tom,CAX ; Siverns Steve,CAX ; Huehnergard Mark Philip,CAX ; Glegg Robert,CAX, Method and apparatus for reducing scaling in electrodeionization systems and for improving efficiency thereof.
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Holland, Herbert W., Method and apparatus for removing contaminants from conduits and fluid columns.
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Holland,Herbert W., Method and apparatus for removing contaminants from conduits and fluid columns.
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Holland,Herbert William, Method and apparatus for removing contaminants from conduits and fluid columns.
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Godec Richard D. (Erie CO) Kosenka Paul K. (Estes Park CO) Hutte Richard (Boulder CO), Method and apparatus for the determination of dissolved carbon in water.
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O\Hare Harry M. (11150 Walnut El Monte CA 91731), Method and apparatus for the purification of water.
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Naaktgeboren C. Lee, Method and system for purification of potable water.
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Jangbarwala Juzer ; Michaud Charles F., Method for minimizing wastewater discharge.
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Sugaya, Yoshio; Matsumura, Yukio; Toda, Hiroshi, Method for producing deionized water.
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Ball Donald L. (Castlegar CAX) Boateng Daniel A. D. (Montrose CAX), Method for removal of monovalent ions from ZnSO₄ electrolyte by electrodialysis.
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Santina, Peter F., Method for removing toxic substances in water.
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Godec Richard D. (Erie CO) Kosenka Paul K. (Estes Park CO) Hutte Richard (Boulder CO), Method for the determination of dissolved carbon in water.
상세보기
Dorrestijn Antoon (Grevenbicht NLX), Method for the manufacture of an electrochemical cell or battery and battery made by the method.
상세보기
Junya Hirayama JP; Shigeaki Sato JP, Method of disinfecting a deionized water producing apparatus and method of producing deionized water.
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Reynolds, III, Robert A., Method of making composite electrode and current collectors.
상세보기
Guerif Grard (Boissy Sous Saint Yon FRX), Method of manufacturing a separator frame for a stack in an exchanger device.
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Cotton, Bill; Towe, Glenn; Yagar, Mathew J.; Erbiceanu, Eduard, Method of manufacturing a spacer of an electrically driven water purification apparatus.
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Rosenthal, Marcus A.; Pei, Qibing; Bonwit, Neville A., Methods for fabricating an electroactive polymer device.
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Andrew G. Proulx ; George M. Carmichael, Methods for producing solid subassemblies of fluidic particulate matter.
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Proulx, Andrew G.; Carmichael, George M., Methods for producing solid subassemblies of fluidic particulate matter.
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Grandics, Peter, Methods for the on-line, on-demand preparation of sterile, water-for-injection grade water.
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Seal J. David (Waukesha WI), Microcomputer controlled demand/scheduled water softener.
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Hunnicutt, Harry A., Micromachined structure usable in pressure regulating microvalve and proportional microvalve.
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Towe Ian Glenn,CAX ; Tessier David Florian,CAX ; Huehnergard Mark Philip,CAX, Modular apparatus for the demineralization of liquids.
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von Bonin Wulf (Leverkusen DEX) Lahrs Jrgen (Cologne DEX) Born Eberhard (Cologne DEX), Modular block for osmotic methods of separation.
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Kedem Ora (Rehovot ILX) Kedem Abraham (Rehovot ILX), Modular electrodialysis device.
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Liang Li-Shiang (Berlin MA) Ganzi Gary C. (Lexington MA) Wilkins Frederick (Pepperill MA), Modules for electrodeionization apparatus.
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Sferrazza,Alois, Multi-path split cell spacer and electrodialysis stack design.
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Rugh ; II ; John L., Municipal water supply system.
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Andelman Marc D. (One Parkton Ave. Worcester MA 01601), Non-fouling flow-through capacitor.
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Isobe, Eiji; Kondo, Jiro, Oil flow control valve.
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Grasso, Albert P.; Johnson, Henry G., One piece sleeve gas manifold for cell stack assemblies such as fuel cells.
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Campbell, Robert L., Ozonated capacitive deionization process & product water.
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Walmet Gunnar E. (Schenectady NY) Matson Stephen L. (Schenectady NY), Packaged membrane system and replenishment method.
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Prescott, Russell E.; Prescott, Perrin T., Pivotable control valve assembly for water treatment device.
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Otowa Toshiro (Shiga JPX), Planar, flow-through, electric, double-layer capacitor and a method of treating liquids with the capacitor.
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Gallagher Christopher J. (Burlington MA) Wilkins Frederick (Pepperill MA) Ganzi Gary C. (Lexington MA), Polarity reversal and double reversal electrodeionization apparatus and method.
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Gallagher Christopher J. ; Wilkins Frederick ; Ganzi Gary C., Polarity reversal and double reversal electrodeionization apparatus and method.
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Lee, Barry H.; Wayman, Gene; Van Newenhizen, John, Process and apparatus for blending product liquid from different TFC membranes.
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Oldani Markus (Wettingen CHX) Miquel Alex (Zurich CHX) Schock Gunter (Birmenstorf CHX), Process and apparatus for removing nitrates from a water stream during the treatment of process water.
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Levy Ehud (5933 Peachtree Industrial Blvd. Bldg. B Norcross GA 30092), Process for filtering water prior to carbonation.
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Oren Yoram (Beer Sheva MA ILX) Giuffrida Anthony (Andover MA) Ciaccio Stephen (Nashua NH), Process for purifying water.
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Baldwin Roger A. (Oklahoma City OK) Stauter John C. (Edmond OK) Kauffman Jim W. (Edmond OK) Laughlin William C. (Edmond OK), Process for the removal and recovery of selenium from aqueous solutions.
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Martin T. Goosey GB, Processes and apparatus for recovery and removal of copper from fluids.
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Lee Sang Eul,KRX, Purification system for disposal of polluted or waste water using water plants.
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Freydina, Evgeniya; Sezgi, Aytac, Regeneration of adsorption media within electrical purification apparatuses.
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Suchanek Steven C. (Monona WI), Regeneration system for water conditioners such as water softeners.
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Lih-Ren Shiue TW; Chia-Chann Shiue TW; S-Yen Wang TW; Fei-Chen Hsieh TW; Chin-Hui Lee TW; Wan-Ting Lo TW; Yu-His Hsieh TW, Replaceable flow-through capacitors for removing charged species from liquids.
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Scott Blanchet ; Michael Cramer ; Richard F. Zepko, Retention system for fuel-cell stack manifolds.
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Tamura Makio,JPX ; Shinbo Akitoshi,JPX, Reverse osmosis process and equipment.
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Prediger, Dennis; Perry, Martin; Sherman, Scott, SOFC stack with thermal compression.
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Ochsenbein, Martin; Stäheli, Curdin; Furrer, Roman, Safety drive for a flap or a valve.
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Towe Ian Glenn,CAX ; Yagar Matthew J.,CAX ; Erbiceanu Eduard,CAX ; Jinnah Tazim,CAX ; Smith Neil,CAX ; Moffett Thomas,CAX, Sealing means for electrically driven water purification units.
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Madsen Rud F. (Nakskov DKX) Nielsen Werner K. (Nakskov DKX) Johnsen Aksel F. (Harpelunde DKX), Semi-permeable membrane liquid filtration apparatus including elliptical blocking means.
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Wilson, William D.; Schaldach, Charlene M.; Bourcier, William L.; Paul, Phillip H., Smart membranes for nitrate removal, water purification, and selective ion transportation.
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Kondo,Jiro; Yamaguchi,Takashi, Solenoid spool valve.
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Millman William G. (Middlebury CT), Spacer for electrodialysis stack.
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Dean W. Clark, Spherical section electrochemical cell stack.
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Grebenyuk,Vladimir; Grebenyuk,Oleg; Sims,Keith J.; Carson,William W.; MacDonald,Russell J.; Zhang,Li, Spiral electrodeionization device with flow distribution profiling.
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Bourbigot Marie-Marguerite (Garches FRX) Faivre Michel (Acheres FRX) Sibony Jacques (Paris FRX) Corsin Pierre (Rocquencourt FRX), Surface water processing installation with safety barrier.
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Maddux, John; Stender, Jay; Hansen, Shawn; Destefano, Ron; Throne, S. Thomas, System and method for removing contaminants from water.
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Schreiner Michael R. ; Carr Sheldon P. ; Buettner Nick W., Valve controller for water conditioning system.
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Uchida Koh (Sagamihara JPX) Kurihara Takashi (Atsugi JPX), Variable assist power steering system.
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Fleckenstein Andrew (Brookfield WI) Mortl Michael (Glendale WI), Water conditioning system controls.
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Don Vaughan ; Richard W. Wilder ; Robert A. Clack, Water conditioning unit control valve.
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Burrows Bruce D. (Valencia CA), Water conductivity monitor for a water purification system.
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Levy Ehud, Water filtration media, apparatus and processes.
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Underwood, Lee, Water purification apparatus.
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Hark Ernst F. (Rte. 7 ; Box 513 Conroe TX 97384), Water purification process.
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Queen,Abel; Robinson,Joel; Haas,William, Water purification system and method using reverse osmosis reject stream in an electrodeionization unit.
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Gaignet, Yves, Water purification system and method, and module for the system.
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Gaignet,Yves, Water purification system and methods, and module for the system.
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Rela, Matthew, Water purifier.
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Jones James Phillip, Water purifying apparatus having a plurality of purifying stages and modular ion exchange media containers.
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Don Vaughan, Water softener control valve with removable seal stack.
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Zabinski John E. ; Rehfeldt Roger, Water softening apparatus with microprocessor control.
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Takeda, Hiroyuki; Asamura, Hitoshi, Water softening device and method for regeneration control thereof.
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Braswell ; John W., Water softening system.
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Arnott, Justin; Lee, Brian, Water treatment and bypass system.
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Chili Danilo (Bologna ITX) Bragos Ramon (Barcelona IL ESX) Norton William W. (Lincolnshire IL) Rak Stanley F. (Mundelein IL), Water treatment apparatus.
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Wilkins,Frederick C.; Jha,Anil; Liang,Li Shiang, Water treatment process.
상세보기
Petty,Bret L., Water treatment system.
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Wilkins,Frederick; Jha,Anil; Liang,Li Shiang, Water treatment system.
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Freydina, Evgeniya; Jha, Anil D.; Wilkins, Frederick; Sezgi, Aytac; Madhusudan, Reshma, Water treatment system and method.
상세보기
Freydina,Evgeniya; Jha,Anil D.; Wilkins,Frederick; Sezgi,Aytac; Madhusudan,Reshma, Water treatment system and method.
상세보기
Ganzi, Gary; Jha, Anil D.; Wilkins, Frederick; Freydina, Evgeniya; Sezgi, Aytac; Madhusudan, Reshma, Water treatment system and method.
상세보기
Wilkins, Frederick; Freydina, Evgeniya; Sezgi, Aytac; Madhusudan, Reshma; Jha, Anil D., Water treatment system and method.
상세보기
Wilkins, Frederick; Freydina, Evgeniya; Sezgi, Aytac; Madhusudan, Reshma; Jha, Anil D., Water treatment system and method.
상세보기
Wilkins, Frederick; Freydina, Evgeniya; Sezgi, Aytac; Madhusudan, Reshma; Jha, Anil D., Water treatment system and method.
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Wilkins Frederick C. ; Liang Li-Shiang ; Bendlin Herbert,DEX ; Dupont Stephane,FRX ; Brust Achim,DEX ; Nussbaum Felix,DEX, Water treatment system having dosing control.
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Hansen Christopher L. ; Park Stuart ; Halemba Peter, Water treatment system with purge valve responsive to fluid signals.
상세보기
Furuno Nobuo (Amagasaki JPX), Water-deionizing system.
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Furuno Nobuo (Amagasaki JPX), Water-deionizing system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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