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5950990 |
Attachment for automatically operating a scissors jack
The present invention relates to an attachment device for securing to a conventional screw jack allowing the screw jack to be operated with a power tool. The device comprises a cylindrical shaft...
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5881420 |
Chimney clamp and seal
A tool for clamping against the interior of a chimney flue having a scissors jack mechanism for adjustably clamping into various size chimneys. A seal plate for sliding over the shaft of the...
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5876526 |
Automotive flat tire repair system improvement
An on-board storable system for repairing a flat tire on an automobile comprising a utensil adapted to endow a power impact wrench to actuate a scissors jack. Such system preferably includes an air...
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5865424 |
Scissors jack gear tooth disengagement prevention system
A scissors jack has first and second upper channels having first and second opposite ends and joined by first and second pivot pins to a load bearing member at the first ends. First and second...
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5855359 |
Combination wheel ramp and jack
A new combination wheel ramp and jack for raising a wheel and a corresponding part of the vehicle so that access to the underside of the vehicle is more easily achieved. The inventive device...
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5782456 |
Vehicle jack
A vehicle jack with an upright assembly and an arm articulated thereto around a fixed horizontal axis. The free end of the arm bends toward the vehicle and is directly or indirectly raised away...
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5782457 |
Jack for vehicles
A vehicle jack that provides a rotation shaft (4) for the support plate (3) on the vehicle support arm (2) and a nut to be received in the end of the jack support leg (1), through which the...
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5746138 |
Multi-degree-of-freedom positioning mechanism
There is provided a multi-degree-of-freedom positioning mechanism having a guide shaft and first and second moving members movably mounted on the guide shaft. Each drive is connected with the first...
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5707043 |
Electric power tool for driving jack
A driving joint includes a joint block secured to an output shaft of an electric driving unit, and a U-shaped connection plate connected at its opposite ends to the joint block and provided at its...
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5697598 |
One piece load rest
This invention relates to a lifting jack for automobiles and other vehicles. In particular, a one piece load rest is disclosed having a top surface with elements including a flat, a trough, and a...
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5692732 |
Tubular D-shaped trunnion
This invention relates to the construction of pantograph jacks and, in particular, relates to the construction of an improved trunnion for connecting the pantograph jack arms to the drive shaft. In...
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5685659 |
Pivot for articulating the load-bearing components of a jack
Pivot for articulating the load-bearing components of a jack. The pivot comprises a shaft that rotates in a bore. The components are lengths of U section or have lateral flanges or upright edges...
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5593137 |
Bi-directional elevating and rack-attached support device for positioning modules during installation and removal from racks
An bi-directional, adjustable elevating and support mechanism to assist in the removal, installation and repair of rack-mounted items such as electronic telecommunications modules by supporting and...
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5580207 |
Device for moving beds
A device for moving beds includes a moveable frame (2); a lifting mechanism (4) which can cooperate with the underframe of a bed (49); and a steering mechanism (5).
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5529286 |
Jack
In a pantagraph type jack, a pair of side plate portions are provided at an upper end of each lower arm, and a pair of side plate portions are provided at a lower end of each upper arm, the pairs...
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5516066 |
Load rest for pantograph jack
One piece load rest having reinforcing portions folded under the centre, fabricating and depending leg portions to be connected to the upper portion of a jack.
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5467969 |
Rope jack device for a shuttle
A rope jack for a shuttle system comprises: a rope holder (8) that holds a rope (1) which travels over guide wheels (6) to move a floating shuttle; a catch holder (9) which is attached to be...
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5460352 |
Stabilizing and reinforcing device for vehicle raising jacks
A vehicle raising jack has an arm with a stirrup, at least one flat front support portion, at least one arm to which the jack foot is pivotally connected and a nut in which the jack screw is...
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5458316 |
Flexible protective boot for a jack screw
A flexible protective bellows or boot for the lead screw of a scissors jack which serves as a reservoir for grease and lubricant and which fits over the lead screw to lubricate it and also to...
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5449149 |
Pantograph jack
In a pantograph jack an improvement comprising an extended tube mounted in a joint of the pantograph to extend a threaded annulus towards a shortened screw of the jack in which the extended tube...
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5444348 |
Electric jack having a rotation-translation movement conversion system and with energy recovery
An electric jack of the type used in robotics having a rotation-translation movement transformation system, at least one electric motor connected to the movement transformation system, means for...
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5435522 |
Vehicle lift
Jack with an upright (1) that rests on a base (8 or 19). An arm (3) that pivots around a horizontal axis (r) on the upright. The arm has a load accommodation (4) on its free end and engaging the...
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5386969 |
Plastic load rest for a jack
An integral plastic load rest for a pantograph jack having a laterally extending channel to engage a vehicle and a reinforced seat centrally positioned under the channel to transfer vehicle load to...
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5364072 |
Screw designs for a scissors jack
An improved scissors jack which has a lead screw that does not extend beyond the confines of the jack when the jack is in the partially raised position so as to reduce the space required for...
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5356117 |
Hollow trunnions for scissor jacks
Hollow trunnions for a scissors type jack which allows a lighter jack to be produced. The hollow trunnion may be formed into a hollow tube and welded and formed with openings for the lead screw....
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5339749 |
Table positioning mechanism
First and second sliding bodies are guided along a first axis on linear guide rails. A linkage connects a table to the first and second sliding bodies. The linkage moves the table parallel to the...
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5324002 |
Method and apparatus for lifting
A lifting apparatus (30) configured with independent lifting means at opposite ends of the longitudinal axis of a base (40) is provided. Slidable transverse support combined with an ability of the...
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5303898 |
Open end construction for jack
An improved open end construction for jacks which provides for tabs which extend at right angles to the side surfaces of the channel members so as to allow pivot pins to be received in the open...
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5271113 |
Electromechanical ambulance cot conversion kit
The present invention provides for the conversion of a manual-type ambulance cot to electromechanical usage. In a manual-type cot having a wheeled undercarriage, a cot frame, scissor-action...
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5262706 |
Multifunctional power driven positioning tool system
A multifunctional power driven positioning tool system wherein a battery powered screw driven removable central unit may be fitted into equipment to function as a tool for prying apart objects, for...
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5261644 |
Plastic jack
A plastic pantograph jack for use in lifting and lowering automobiles comprising arms jointed together between a base and a load rest having a threaded rod passing through a pair of joints of the...
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5199688 |
Failure modes for a jack
Scissors jacks which are provided with channels which bend during overload conditions so as to indicate to the user that the jack has been overloaded. One embodiment an accordion structure is used...
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5197714 |
Car lift
An automotive jack in which an upright member is provided with a pivotable base plate hinged on a first pivot at the bottom of the upright member. This upright member has a second pivot on which a...
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5184806 |
Jack
A jack (1) has a flat base (2) attached to a support (3) at the top by a lever-operated mechanism. The mechanism is activated by a threaded shaft (5) and nut (6). The nut has a coaxial gudgeon (10...
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5176362 |
Vehicle jack assembly
A scissor jack having four aluminum arms of U-shaped cross section which are substantially identical and which may include a hollow aluminum lead screw. The threaded nut through which the lead...
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5165660 |
Drive unit for a jack
An improved drive unit for a jack mechanism which is formed from an inexpensive stamping and it can be attached to the control shaft of a jack by staking, welding or other matter and which can be...
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5161782 |
Mechanical jack
A mechanical jack comprising a base, on which a fixed frame is fixed. The fixed frame is substantially up-standing, slightly inclining toward one side with a supporting frame attached thereon to...
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5158266 |
Vehicle lift
A jack with a single leg, with a lifting arm that pivots around a stationary horizontal axis on the leg, with a threaded shaft that is articulated to the leg and engages the lifting arm either...
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5154569 |
Wheelchair loading device for aircraft
This invention relates to a lift device adapted to transfer wheelchair passengers to commuter aircraft. A base and optional four post system provide support for a vertically moveable platform. An...
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5139232 |
Nonmetallic automotive jack
A nonmetallic automotive jack includes a scissors assembly which is mounted on a base. The base includes a floor which flairs outwardly in a forward portion and outwardly in a rearward floor...
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5135201 |
Lift cap for a jack
An improved lift cap for a jack which comprises a two-piece lift cap that fit together with tab and slot arrangements and which allow the overall mass of the jack to be substantially reduced by...
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5125627 |
Jack
A jack for a car includes a support column having a middle region and a lower end. A base is articulated at the lower end of the support column and pivotable about a first transverse axis. A...
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5118083 |
Car jack
A jack in which a base plate is pivotable on an upright to a bottom surface. A supporting arm is also pivotable on the upright, and is actuated for being pivoted. The base plate is held in a...
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5110091 |
Scissors jack which has improved formed gear teeth
A scissors jack which has improved formed gear teeth which allow a jack to be retracted to a very low profile so that it can be placed under the vehicles. The teeth of the lower pivot arms are...
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5064171 |
Drive head for a scissors jack
A drive head for the screw of a scissors jack which is formed in the shape of a wing nut which has a hexagonal socket formed between opposed walls so that a conventional folding lug wrench can be...
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5012879 |
Self-propelled jacking apparatus for factory constructed buildings
The invention provides apparatus for precise, well controlled positioning and levelling of factory constructed buildings. The apparatus comprises units used in pairs, one near each end of a...
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5011118 |
Jack
The invention concerns a jack (10) with at least one leg (12) and an arm (16) that is connected to it, that can move up and down with its position varied by an adjusting mechanism (26), and that...
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5002258 |
Jack and components therefor
An improved jack with overload prevention including a lead screw having a driven end and an upstanding integral boss proximate the driven end, the driven end comprising a body abutting the...
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4943034 |
Power jack and method
An adaptor for a jack having a threadable jack shaft and a support platform that rises or lowers when the threadable jack shaft turns. The adaptor has a housing containing a drive motor that is...
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4919392 |
Vehicle jack
Disclosed is a vehicle jack comprising a stand having an upper and a lower end and a lift arm having one end pivotably connected to the stand intermediate the upper and lower ends, the lift arm is...
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