IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0949578
(2001-09-11)
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발명자
/ 주소 |
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인용정보 |
피인용 횟수 :
14 인용 특허 :
1 |
초록
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A hand truck with an integral load restraing device comprised of an upright frame with a handle area, a toe plate which extends forwardly from the bottom of the upright frame and a pair of wheels mounted on the lower rear of the upright frame. Hand truck is equipped with integral universal clamping
A hand truck with an integral load restraing device comprised of an upright frame with a handle area, a toe plate which extends forwardly from the bottom of the upright frame and a pair of wheels mounted on the lower rear of the upright frame. Hand truck is equipped with integral universal clamping system arranged for restraining loads of varying geometric configurations back and against the upright frame of the hand truck. The integral clamping system is comprised of a telescoping clamp bar carrying a gear operated load restraining clamp equipped with universal load gripping fingers. Clamp bar and clamp telescope inwardly and outwardly to accommodate cargo of varying depth and are pivotally mounted to a lug inside the vertical slide track, allowing the clamping system to function over the entire height of the hand truck, pivot up and down, swing horizontally from side to side or, be stowed completely out of the way inside the slide track for conventional use of the hand truck.
대표청구항
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A hand truck with an integral load restraing device comprised of an upright frame with a handle area, a toe plate which extends forwardly from the bottom of the upright frame and a pair of wheels mounted on the lower rear of the upright frame. Hand truck is equipped with integral universal clamping
A hand truck with an integral load restraing device comprised of an upright frame with a handle area, a toe plate which extends forwardly from the bottom of the upright frame and a pair of wheels mounted on the lower rear of the upright frame. Hand truck is equipped with integral universal clamping system arranged for restraining loads of varying geometric configurations back and against the upright frame of the hand truck. The integral clamping system is comprised of a telescoping clamp bar carrying a gear operated load restraining clamp equipped with universal load gripping fingers. Clamp bar and clamp telescope inwardly and outwardly to accommodate cargo of varying depth and are pivotally mounted to a lug inside the vertical slide track, allowing the clamping system to function over the entire height of the hand truck, pivot up and down, swing horizontally from side to side or, be stowed completely out of the way inside the slide track for conventional use of the hand truck. screening, blending, and sizing as it moves downwardly through said welded modules and their said aggregate processing equipment for final collection of said product at various levels. 4. The method set forth in claim 3 including providing a triple deck screen in said top layer welded module and inclining it downwardly therein for passing product downwardly over said triple deck screen, providing product collecting chutes beneath said triple deck screen for directing and separating the product into different product classifications. 5. The method as described in claim 3 further characterized in that the first three layers as measured from the bottom of welded modules are assembled in stacked relationship and then a double screen vibrator is inserted downwardly into the second and third layer of said first three layers of welded modules and secured therein, and then the fourth and fifth layers from the bottom of said five layers of weldment modules are assembled thereon. 6. A large stationary, aggregate processing screening tower comprising, weldment modules preassembled with aggregate processing equipment internal within the weldment modules, said weldment modules in a preassembled condition are stacked up on one another and secured together, said weldment modules in a stacked-up configuration adapted to receive aggregate product at the top weldment module and said product is processed by screening and sizing as it moves downwardly by gravity through said weldment modules and their said aggregate processing equipment for final sizing and collection of said product. 7. A large stationary, aggregate processing screening tower comprising five layers of welded modules including a top module and having second and third lowermost layers and having aggregate processing equipment therein, said layers of welded modules secured together and adapted to receive aggregate product at said top welded module and adapted to permit said product to be processed by screening, sizing and classifying said aggregate as it moves by gravity downwardly through said layers of welded modules and their said aggregate processing equipment for final collection of said product. 8. The tower defined in claim 7 including a double screen vibrator located in the second and third lowermost layers, said vibrator having two screens positioned one above the other and mounted at a downwardly inclined angle and having a lower discharge end having outlet conduits for discharging screened product separately from each of said screens, a hot air heat conduit mounted in said second and third lowermost layers and in communication with said vibrator adjacent the discharge end of the lower of said screens and for directing hot air into said vibrator where said hot air rises within said vibrator to dry the product therein, and a gas heater in said third lowermost layer and in communication with said heat conduit for supplying hot air at about 150° F. to said conduit and then to said vibrator. 9. The tower of claim 8 further characterized in that said conduit is shaped generally circular ring-shaped and vertically positioned in said second and third lowermost layers and said ring shaped conduit has its lower portion in communication with the discharge end of said lower screen of said vibrator and said ring-shaped conduit also has an upper portion in heat receiving communication with said gas heater. 10. The tower set forth in claim 8 wherein said vibrator includes a reversible screw conveyor located below said outlet conduits for receiving product from said outlet conduits, said reversible screw conveyor conveying product selectively to two separate receptacles. 11. In a large, stationary aggregate processing screening tower, having five layers of modules, a double screen vibrator mounted in and extending through two of said layers, said double screen vibrator having two screens positioned one above the other and mounted at a downwardly inclined angle and havin g a lower discharge end having outlet conduits for discharging screened product separately from each of said screens, a hot air heat conduit in communication with said double screen vibrator adjacent the discharge end of the lower of said screens and for directing hot air into said vibrator where it rises within said vibrator to dry the screened product therein, and a heater in communication with said heat conduit for supplying hot air to said heat conduit and over said screened product. 12. The tower set forth in claim 11 wherein said heater is an oil burner having an output as high as 1.3 million BTU an hour maximum which can bring the moisture content of the screened product from 10-14% down to 2-3%. 13. A method of manufacturing a large stationary, aggregate processing plant and comprising, fabricating weldment modules and preassembling said modules with aggregate processing equipment internal within the weldment modules, transporting said weldment modules in a preassembled condition to a field work site where the plant is to be erected on a foundation, aligning said weldment modules with one another, said weldment modules adapted to receive aggregate at the top uppermost weldment module and permit said aggregate to be processed by feeder screens and sizing into aggregate product as said product moves by gravity through said weldment modules and their said aggregate processing equipment for final collection of said product. 14. A large stationary, aggregate processing plant comprising, weldment modules preassembled with aggregate processing equipment internal within the weldment modules, said weldment modules are arranged in aggregate processing relationship to one another, said arranged weldment modules including a top weldment module and adapted to receive aggregate product at said top weldment module processing by screening and sizing as said product moves downwardly by gravity through said weldment modules and their said aggregate processing equipment. 15. A large, stationary aggregate processing screening tower, having five layers of modules, a double screen vibrator mounted in and extending through two of said layers, said double screen vibrator having two screens positioned one above the other and mounted at a downwardly inclined angle and having a lower discharge end having outlet conduits for discharging screened product separately from each of said screens, high frequency electric vibrators connected with said screens for vibrating said screens at a frequency of 3000 to 5000 rpm, a hot air heat conduit in communication with said double screen vibrator adjacent the discharge end of the lower of said screens and for directing hot air into said vibrator where the air rises within said double screen vibrator to dry the screened product to thereby result in fine sand therein, and a heater in communication with said heat conduit for supplying hot air to said conduit and over said fine sand to reduce the moisture content of the fine sand to 2% to 3% and remove the fine 200-mesh particles of sand to achieve production of concrete sand in a dry application. rd downstream first chute member ends; said first chute member being connected to said wet chip conveyor at said outboard upstream chute end of said first chute member; said inboard downstream end of said first chute member being positioned contiguous to said centrifugal separator whereby wet chips from said parts separator enter said centrifugal separator, said top portion of said first chute member having at least one top portion opening, said bottom portion of said first chute member having a heavy material drop out opening; a second chute member having spaced open outboard and inboard ends; said inboard end of said second chute member being joined to said first chute member at said top portion opening, and said top portion opening being disposed downstream of said drop out opening; and a second wet chip conveyor, said outboard end of said second chute member being attached to said second wet chip conveyor. 2. A wet chip separator assembly in accordance with claim 1 wherein said outboard end of said second chute member serves as a source of pneumatic fluid to the centrifugal separator whereby fluid is directed through said second chute member into said first chute member. 3. A wet chip separator assembly in accordance with claim 1 wherein said first chute member has a plurality of spaced openings in said top portion, a plurality of second chute members, each second chute member including an open outboard end and a spaced open inboard end; and said inboard ends of said second chute members each being attached to said first chute member at the location of one of the plurality of spaced openings in said top portion. 4. A wet chip separator assembly in accordance with claim 1 and further including a pneumatic fluid seal assembly disposed within said first chute member for preventing substantial pneumatic fluid from entering said parts separator. 5. A wet chip separator assembly in accordance with claim 1 and further including a pneumatic fluid seal assembly disposed adjacent to and outside of said first chute member. 6. The wet chip separator assembly in accordance with claim 1 and further including an air seal assembly disposed contiguous to said outboard end of said first chute member and upstream from said heavy material drop out opening. 7. A method of delivering wet chips to be separated into dry chips and fluid in a wet chip separation assembly comprising: at least one wet chip conveyor including a wet chip conduit having a wet chip exit opening; a centrifugal separator for separating wet chips into dry chips and fluids and including a wet chip receiving opening; a parts separator for separating undesired heavy materials from wet chips, said parts separator being disposed between said wet chip conveyor and said centrifugal separator, said parts separator including: a first chute member having a top portion, a bottom portion and spaced open outboard upstream and inboard downstream first chute member ends; said first chute member being connected to said wet chip conveyor at said outboard upstream chute end of said first chute member; said inboard downstream end of said first chute member being positioned contiguous to said centrifugal separator whereby wet chips from said parts separator enter said centrifugal separator, said top portion of said first chute member having at least one top portion opening, said bottom portion of said first chute member having a heavy material drop out opening; a second chute member having spaced open outboard and inboard ends; said inboard end of said second chute member being joined to said first chute member at said top portion opening, and said top portion opening being disposed downstream of said drop out opening, the method including the steps of: passing wet chips to be separated into said open outboard end of said first chute member; passing wet chips to be separated into said open outboard end of said second chute member and through said top portion o
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