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7607519 |
Hand controlled stopping device for a camera dolly
A braking system allows for smooth and accurate stopping of a camera dolly operating on tracks. A pair of caliper brake modules attached to the dolly frame are sized so that they fit over and at...
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7581713 |
Jack and safety stand
The various embodiments disclosed and pictured herein illustrate a safety stand and jack for safety and easily positioning the load engaging portion of the jack directly against the frame of a...
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7464914 |
Robust consumer lifting device-power unit
A power unit includes a rectangular frame base having a left shoe and a right shoe having a longitudinal track on their inner sides, a forward end having a support plate for receiving a jack stand,...
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7434783 |
Commercial lifting device—self aligning jack stand
A jack stand is for use with a power unit. The power unit includes a rectangular frame and a pair of parallel lift arms having forward ends extendable vertically over the frame. The forward ends of...
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7434782 |
Commercial lifting device-controls for power unit
A handle and control mechanism on a mobile power unit for positioning extending, retracting and extracting a jack stand. The jack stand includes an alignment hole and a pair of ratchet release arms...
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7431265 |
Swiveling handle mounting mechanism of a hydraulic garage jack
A swiveling handle mounting mechanism mounted on the pump of the hydraulic unit of a hydraulic garage jack is disclosed to include a seat affixed with a pressure plate to the pump beyond the oil...
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7421841 |
Three-shift lifting mechanism for jack or the like
The load dependent, variable displacement, at least three-shift hydraulic mechanism includes a hydraulic device disposed at the front side of a valve block and adapted to move a ram piston oriented...
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7413169 |
Commercial lifting device-safety mechanism
A hydraulic floor jack includes a rectangular frame with side flanges and having an extended control handle with a control lever. A pivotal lifting mechanism is mounted on the frame including a...
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7413168 |
Commercial lifting device—automatic-slide-forward-bridge
The power unit includes a generally rectangular frame having a pair of parallel lift arms with forward ends extendable upward therefrom. The lift arms have leveling pads pivotally attached to the...
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7413167 |
Robust consumer lifting device-trunk jack
A trunk jack includes a rectangular frame base having a left shoe and a right shoe having a longitudinal track on their inner sides, a forward end has a support plate, and a rearward end has a rear...
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7413166 |
Commercial lifting device-jack stand frame locking mechanism
An extendible jack stand comprises first, second, and third vertical frames arranged in telescoping relationship. A locking mechanism includes an upwardly extending finger fixedly secured to an...
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7413165 |
Robust consumer lifting device-slide forward bridge
An automatic-slide-forward-lift bridge for use with a jack stand power unit. The power unit has a rectangular frame base and a pair of parallel lift arms with forward ends for raising and lowering...
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7410149 |
Robust consumer lifting device- three stage jack stand
A three stage jack stand has a base plate, and includes a first stage tubular rectangular housing. A second stage “U” shaped ratchet shaft has ratchet teeth on the forward edges, and is...
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7410148 |
Commercial lifting device-power unit
A power unit for use with a jack stand and a lift bridge has a rectangular frame with a forward end having a pair of separated elongated extensions for supporting the jack stand. The extensions...
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7347410 |
Lifting apparatus
A device for lifting an item such as an article of furniture to gain access underneath for performing a variety of tasks. The device comprises a horizontal actuating beam attached via a hinge...
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7334774 |
Extensible and turnover handle structure for a jack
An extensible and turnover handle structure for a jack comprises a pivot ear formed at the front end of a base. The pivot ear is provided for a pivot connection with the handle. Moreover, the...
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7243906 |
Wheeled jack
A wheeled jack, comprising a chassis shaped like an articulated parallelogram in which a lower horizontal side is provided, at its two front sides, with respective pairs of tilting wheels and the...
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7168685 |
Vehicle jack and stand
An improved vehicle jack and jack stand is provided, used separately or in combination, where the both the vehicle jack and jack stand are adapted to receive and support a cup means that also...
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7143998 |
Vibration absorber jack
A vibration absorber jack including a tripod type base, a jack, an absorber positioning mechanism, and a vibration absorber holder. The jack is attached to the base, the absorber positioning...
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7108245 |
Jack having safety effect
A jack includes a base provided with a plurality of catch blocks, a lift arm pivotable relative to the base, and a safety member pivotally mounted on the lift arm to move therewith. Thus, when the...
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7100897 |
Hydraulic jack
Disclosed is a jack lever, in which oil is pumped by piston ( 10 ) to move a cylinder ( 20 ) faster, vacuum being created at a lower portion of the cylinder ( 20 ) moving up, oil in an oil tank (...
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7080823 |
Engine hoist mounting a transmission adapter
An adapter mechanism for removably mounting to a ground supported hoisting device to facilitate the removal, repair and reinstallation of a weighted mass, such as a vehicle transmission. The...
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7055801 |
Quick rise hydraulic lifting jack
A quick-rise hydraulic lifting mechanism includes a lift arm, the lift arm being pivotable about an axis; a hydraulic actuator operably connected to the lift arm, the hydraulic actuator having an...
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7036797 |
Slippage-preventing device for tubular jack
A slippage-preventing device for tubular jack handle consists of a jack handle stand that is provided with a movable bar extending into the inner wall of an insertion hole therein. A tubular handle...
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7036796 |
Portable lifting jack
A portable lifting jack having a wheeled frame ( 1 ), a lifting arm ( 10 ), a handle ( 11 ) and a hydraulic pump ( 2 ), which includes a multipurpose block ( 20 ) formed as an octogonal column...
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7011296 |
Lift arm assembly for use with a power unit and lift bridge
The specification describes a mobile jack stand power unit for use with a jack stand that is convertible for use as a load-lifting jack. The power unit comprises a generally rectangular mobile...
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7004454 |
Motorcycle and small vehicle lift
A lift apparatus includes a base frame having a pair of ground engaging caster assemblies and a pair of horizontally extending divergent legs each having an inner end attached to the base frame and...
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6986503 |
Power unit for use with a jack stand that is convertible into a load-lifting jack
A power unit comprises a rectangular chassis having a forward end and a rearward end and including a pair of parallel lift arms having rearward ends slidably mounted along the rearward end of the...
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6966542 |
Motorcycle lift
A lift is provided with a low profile lifting mechanism. The lifting mechanism includes a first member pivotally connected to a base, a second member pivotally connected to the first member and a...
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6942196 |
Electrical automobile car jack
In general, an electrically operated car jack is described. A typical embodiment includes a base frame or housing that is adapted to be placed on the ground underneath the automobile to be lifted....
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6929248 |
Mechanical jack
A mechanical jack comprising a ratcheting gear track connected to a frame. A bell crank arm is pivotally connected to the frame. An elongate handle is rotatably connected to the bell crank arm. A...
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6902147 |
Wheeled hydraulic jack with suspensory lifting device
A wheeled hydraulic jack with a suspensory lifting device comprises a hydraulic unit, two pivotal cantilever arms and two movable tension links each pivotally mounted on each of the pivotal...
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6899319 |
Jacks having a detachable rear-end handle
A jack having a detachable rear-end handle comprises a wheeled jack and a hand-held ring. Two sidewalls of the jack are each provided with a pair of blocking pieces respectively mounted on an upper...
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6848673 |
Jack assembly with lifting handle
A jack assembly with a lifting handle is disclosed. The jack assembly includes a frame having a pair of elongated side members that are in spaced-apart relation, each having a first end and a...
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6802493 |
Motorcycle lift
A motorcycle lift [ 100] comprises two lift arms [ 103 A, 103 B] attached to a cross bar [ 105] . Support sleeves [ 109 A, 109 B] attached to the ends of the lift arms surround the foot pegs [...
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6789785 |
Hydraulic lifting device with a rapid mechanical lift to chassis of vehicle
A hydraulic lifting device capable of being rapidly raised in a mechanical movement by use of a linkage mechanism that comprises a lifting device, a rotating shaft and a linkage. The lifting device...
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6779780 |
Lift bridge for use with a power unit and a load-lifting jack
The specification describes a mobile jack stand power unit for use with a jack stand that is convertible for use as a load-lifting jack. The power unit comprises a generally rectangular mobile...
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6769668 |
Lifting device assembly
A jack for lifting an object includes a base assembly and a jacking assembly. The base assembly has a frame with a base member having a nesting chamber, lifting arms pivotably connected to the base...
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6752383 |
Device for lifting partitions
A device for lifting office partitions having a housing with a main body portion and spaced apart base legs. The main body portion is spaced upwardly from the base legs at one end of the housing to...
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6722634 |
Joint between a first cylinder and a second cylinder of a hydraulic jack to allow the second cylinder to drive the arm directly
A hydraulic jack includes a first cylinder, a handle pivotally connected to the first cylinder to activate the first cylinder, a second cylinder in communication with the first cylinder and having...
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6691983 |
Economical lifting device-jack stand
An economical jack stand for use with a power unit has a rectangular base plate with a tubular housing having a lower end attached to the base plate. A “U” shaped ratchet shaft with ratchet...
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6663081 |
Safety mechanism for use with a power unit and a hydraulic jack
The specification describes a mobile jack stand power unit for use with a jack stand that is convertible for use as a load-lifting jack. The power unit comprises a generally rectangular mobile...
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6648299 |
Leveling pads for use with a power unit and jack stands
The specification describes a mobile jack stand power unit for use with a jack stand that is convertible for use as a load-lifting jack. The power unit comprises a generally rectangular mobile...
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6612548 |
Hoist
A crank assembly for use with a hoist assembly comprising an elongated hollow housing with first and second elongated movable elements slidably mounted within opposed ends thereof. Inner ends of...
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6601827 |
Economical lifting device-trunk jack
The specification describes economical lifting devices. A consumer jack comprising a rectangular base; a pair of connecting arms that are pivotally attached to the front end of the base, and a pair...
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6581909 |
Simplified hydraulic circuit for a quick-rise hydraulic lifting jack
A hydraulic fluid circuit for a quick rise type lifting jack positions multiple valves that control two stages of the lifting operation of the jack in the same valve housing machined into a base of...
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6565068 |
Economical lifting device-power unit for use with a jack stand and lift bridge
The specification describes economical lifting devices. A consumer jack comprising a rectangular base; a pair of connecting arms that are pivotally attached to the front end of the base, and a pair...
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6505816 |
Jack with rotary handle sleeve
A jack with a rotary handle sleeve is disclosed. The handle sleeve 4 of a jack is locked to a rotary supporting seat 3. The rotary supporting seat 3 passes through the pump 2 and washers to...
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6485001 |
Electric lifts for automotive service
An electric lift including a base, an upright boom support extending from the base and terminating in an end, and an elongated boom having a first end pivotally coupled to the end of the boom...
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6474624 |
Hydraulic jack
To facilitate an operation for feeding a jack part into a desired position. A jack part 2, which extends when pressure oil from an oil pressure supply and discharge part 1 is supplied, and...
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