[특허]Motorized hydrant

[미국특허] Motorized hydrant 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16K-031/04 F16K-031/50
출원번호	US-0470812 (1990-01-26)
발명자 / 주소	Ratnik H. Ronald (Pittsford NY)
출원인 / 주소	Ratnik Industries, Inc. (Victor NY 02)
인용정보	피인용 횟수 : 17 인용 특허 : 2

초록 ▼

A rotatable valve stem in a fluid (e.g. water) hydrant controls the axial position of a plug relative to a valve seat to control fluid-flow through the valve seat. The valve stem is threaded into a bushing of the hydrant so that rotational movement of the stem causes axial movement thereof. According to the invention, rotation of such valve stem is motorized by the coupling of a rotatably-driven drive shaft of an electric motor to the valve stem. The motor and, optionally, a gearing arrangement are enclosed by a protective housing supported by the hydrant. The motor is slidably mounted within the protective housing to accommodate axial movement of the motor caused by the axial movement of the valve stem and its coupled motor drive shaft. According to a preferred embodiment, such sliding movement is effected by the combination of one or more pins operatively coupled to the motor and extending radially outward relative to the motor drive shaft axis, and a like number of axially-extending slots formed in the protective housing and adapted to receive and guide such pins.

대표청구항 ▼

A motorized hydrant apparatus for controlling the flow of a fluid, said hydrant apparatus comprising: (a) a first housing including means defining (i) a valve seat through which a fluid can enter said first housing and (ii) an outlet through which a fluid within said first housing can exit therefrom; (b) a plug adapted to cooperate with said valve seat for controlling the flow of fluid into said first housing through said valve seat; (c) a valve stem operatively coupled to said plug for controlling the position of said plug relative to said valve seat, said valve stem having an end portion disposed outside said first housing; (d) threaded means in said first housing for rotatably supporting said valve stem and for converting rotational movement of said valve stem to axial movement of said valve stem, whereby said plug is moved toward and away from said valve seat during rotational movement of said valve stem; (e) motor means for rotatably driving said valve stem, said motor means comprising a rotatably-mounted drive shaft, a bi-directional electric motor adapted to selectively rotate said drive shaft in either of opposite directions, and coupling means for operatively coupling said drive shaft with the end portion of said valve stem; (f) mounting means for slidably supporting said motor means on said first housing to allow said motor means to slide in a direction parallel to the longitudinal axis of said valve stem in order to accommodate the axial movement of said valve stem occasioned by the rotational movement thereof by said motor means; and (g) a second housing for protectively enclosing said motor means, said second housing being rigidly connected to said first housing, said motor means being slidably supported within said second housing.

이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

Yoshiga, Kenji, Motor-driven expansion valve.
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Iwanicki Walter (Adelaide AUX) Duane Brian (Adelaide AUX), Solar/gas heater.
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이 특허를 인용한 특허 (17) 인용/피인용 타임라인 분석

Giorgetti, Giorgio; Meme′, Lorenzo, Control system for gas pressure controllers in explosion risk areas.
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Dukes, Brent; Splitz, David; Magley, Dale McLeod; Grady, Robert Henry, Dynamic routing in a mesh network.
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Weston Colin K. (1204 Dreamcrest Rd. Mississauga ; Ontario CAX L5V 1N7 ), Fluid flow control device.
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Fleury, Jr., Leo W.; Roy, Normand James; Williams, James Ola; Clark, Kenneth A.; Parish, Edward C., Flushing hydrant.
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Fleury, Jr., Leo W.; Roy, Normand James; Williams, James Ola; Clark, Kenneth A.; Gifford, Paul; Granata, Christian Michael; Parish, Edward C., Flushing hydrant with fail-safe.
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Hyland, Gregory E.; Keefe, Robert Paul; Zakas, Marietta Edmunds; Barker, Clayton Robert, Infrastructure monitoring devices, systems, and methods.
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Hyland, Gregory E.; Keefe, Robert Paul; Zakas, Marietta Edmunds; Barker, III, Clayton Robert, Infrastructure monitoring devices, systems, and methods.
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Hyland, Gregory E.; Keefe, Robert Paul; Zakas, Marietta Edmonds; Barker, III, Clayton Robert, Infrastructure monitoring system and method.
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Hyland, Gregory E.; Keefe, Robert Paul; Zakas, Marietta Edmunds; Barker, Clayton Robert, Infrastructure monitoring system and method and particularly as related to fire hydrants and water distribution.
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McCraven, Jeremy, Mechanical stop for actuator and orifice.
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Murphy Kevin P. ; Redman Michael J. ; Smith Garland Y., Method and apparatus for maintaining valves in a water distribution system.
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Hyland, Gregory E.; Keefe, Robert Paul; Zakas, Marietta Edmonds; Barker, Clayton Robert, Method of disseminating monitoring information relating to contamination and corrosion within an infrastructure.
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Schirado, Richard M., Remotely controlled hydrant system.
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Splitz, David Edwin; Shoesmith, William Charles; Grady, Robert Henry, Systems and methods for recovering an out-of-service node in a hierarchical network.
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Clark, Kenneth A.; Sitnikov, Timofey; Gifford, Paul, Systems for measuring properties of water in a water distribution system.
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Clark, Kenneth A.; Sitnikov, Timofey; Gifford, Paul, Systems for measuring properties of water in a water distribution system.
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Clark, Kenneth A.; Sitnikov, Timofey; Gifford, Paul, Systems for measuring properties of water in a water distribution 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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[미국특허] Motorized hydrant 원문보기