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8162289 |
Modular jack apparatus for lifting floors and other structures
An apparatus which is positionable between a structure to be lifted and an underlying support surface for lifting the structure utilizes a bottom plate and a cap between which a spacer member, such...
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8156694 |
Support pedestal for supporting an elevated building surface
A method and device for supporting a structure above a fixed surface. The device can include a support pedestal whose height is adjustable through a range of heights without a substantial gap in...
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8132787 |
Conical jack stands
Conical jack stands that are used to hold up a motor vehicle (or other object) after it has been raised (e.g., by jacks). Rather than having legs like conventional jack stands, they have the shape...
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8001733 |
Adjustable jack post
A post adjustable in length as required. The post can be adjusted at any time during and after construction. The post can be used as an extension of a column which requires adjustment in length....
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7900890 |
Worm-rack type transmission device
In a worm-rack type transmission device (1), a curved side portion (6) is provided on rack teeth (2a) of a linear rack (2) in a manner to form a part of an ellipsoidal surface (E) and twisted by a...
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7712389 |
Lifting device having parallel double screw rods
A lifting device having parallel double screw rods includes a motor, a first transmission and a second transmission. The first transmission includes a screw rod driven by the motor and a telescopic...
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7578212 |
Force amplifier
A force amplifier has a guide track, a non-locking screw threadedly engaging the track to spirally move in response to an axial input force applied to the proximal end of the non-locking screw. The...
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7516579 |
Plate holding device fixed to a substructure
The invention is directed to a holder for fixedly attaching a panel to a substructure. The holder comprises a connection member capable of being fixedly connected non-rotatably to the substructure,...
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7472889 |
Vehicle lift system
A vehicle lift system includes a vehicle with a power supply port. A housing has a bottom wall, a top wall and a peripheral wall. A sleeve extends upwardly from the housing. A piston is mounted in...
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7458562 |
Extendible and retractable actuator
An extendible and retractable actuator comprises a motor, two screws and an extendible and retractable sleeve assembly. The motor cooperates with the screws to drive the extendible and retractable...
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7410201 |
Actuator structure and method for attaching a gear or pulley to lead screw
An improved lead screw actuator for use in applications including power vehicle windows is provided that significantly reduces the amount of machining that must be performed on the lead screw to...
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7401392 |
Jack for single-handed garbage disposer installation
An exemplary embodiment provides one or more improvements which makes it possible for a single person to easily install a garbage disposal under a sink. Embodiments include a base with wheels, a...
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7383922 |
Load stopping system
A load stopping system for mechanically stopping a load in a relatively slow and controlled manner using rotational and frictional forces. The system includes a glide rod, a guide collar that moves...
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7344117 |
Adjustable lift support apparatus
An adjustable lift support apparatus includes a base, a sleeve attached onto the base, at least one meshing device, a shaft, and a support attached at the shaft. At least one groove is formed on an...
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7207548 |
Automobile jack stand with lights
An automobile jack stand having four sides that substantially form a pyramid. Extending from the pyramid is a telecopying support. The telescoping support is attached to a curved horizontal support...
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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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7140086 |
Adjustable support assembly
A support assembly useful in supporting a plumbing fixture in the course of effecting connections thereto includes a base provided with a vertical tube segment supporting a nut assembly threadably...
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7024743 |
Garbage macerator installation mount
A support assembly useful in aligning and mounting a garbage disposal to the drain fitting of a sink includes a base provided with a vertical tube segment supporting a nut assembly threadably...
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6685169 |
Motor operated jack for vehicles
A motor-operated jack for vehicles includes a lifting unit, which includes a spiral lifting ram having an internal thread limitedly formed at a lower portion of the spiral lifting ram, and a pin...
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6581912 |
Jack assembly for supporting a shelter structure
A jack assembly for supporting a shelter structure includes a first tubular member fixed at a first end thereof to a plate, a nut disposed in the first tubular member and fixed to the plate, the...
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6557431 |
Fail-safe ball screw
A fail-safe ball screw assembly has a double-start screw and a corresponding nut. The screw has a first helix with a truncated, smaller diameter flat and an intertwined second helix with an...
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6547216 |
Multiple balls supported push actuator
The push actuator has a fixed base which rotatably carries a selectively rotatable rotor. A horizontal band has a lower portion stacked in a helical pattern and has an upper portion engaged by the...
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6513790 |
Electromotive adjustment assembly
An electromotive adjustment assembly, includes at least two spindles, each spindle carrying a spindle nut, with both spindle nuts secured against executing a rotation movement. A motor unit is...
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6505803 |
Cabinet mounting support device
A cabinet mounting support device for supporting a cabinet at a selected height for mounting the cabinet. The cabinet mounting support device includes a base plate. A substantially hollow first...
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6446757 |
Lock mechanism for lift
A cable lift includes a platform supported on posts and raised and lowered by cables. Yoke ends support the platform on the posts by means of dogs which project into openings in latch plates on...
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6408592 |
Methods and apparatuses for protecting windows and buildings during a wind storm
A brace for protecting windows and buildings during a high wind storm is disclosed. The brace includes a rigid member sized so as to fit within a window frame containing the window to be protected,...
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6367777 |
Electric version fry dispenser
The present invention provides an electric version of a dispenser unit and method of monitoring a request signal for filling empty baskets, movement of the empty baskets on a loading ramp via a...
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6234034 |
Linear actuator with drop prevention mechanism
A linear actuator including a mechanism for preventing accidental drop of an inner cylinder caused when a driven nut engaged with a drive screw shaft is broken. The drop prevention mechanism...
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6152424 |
Door and window frame spreader
A screw device for imposing spreading forces on opposing surfaces, having a pin adjustable length and employing a rod member having a groove in the end for engaging the pin.
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6109594 |
Disengageable force regulator for linear electric screwjack
The invention concerns a device making it possible to firstly limit the dynamic or static force applied to a linear electric jack with a reversible screw/nut system, and secondly...
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6062541 |
Portable jackbolt positioning system and method
A apparatus and method for moving and aligning objects such as machine components includes a plate positionable beneath and engageable with an object to be moved, a block engageable with the plate,...
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H001823 |
Bus bar screw jack
A bus bar screw jack is useful in the removal, inspection, and reinstallation of bus bars. The end of the screw jack which engages the bus bar comprises a channel with a foam rubber coating to...
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5904066 |
Axial translation precision position post
A high-precision positioning post having alternating parallel cuts transving the center-line of the shaft body and which are perpendicular to the major axis of the shaft. The shaft further...
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5819345 |
Actuator device
A rehabilitation bed for accommodating an obese person includes a main frame with separate forward and rearward frame structures connected together end-to-end and constituting mirror images of one...
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5755310 |
Ratchet lifting nut assembly
A screw-type lift having a ratchet lifting nut assembly providing for the safe lowering of a load while preventing additional lifting of the load upon failure of a lifting nut is disclosed. The...
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5626328 |
Flat lifting device
A flat lifting device includes an outer and an inner hollow section rail with closed cross section and with a substantially greater width than a thickness. One of the section rails is acted upon by...
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5531557 |
Drive screw system with nested mobile supports
The drive screw system comprises a drive screw and a drive nut adapted for driving a cooperating member such as a vehicle restraining device between the proximal and distal ends of the drive screw....
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5518220 |
Lifting device for a vehicle
A lifting device for a load, such as a vehicle, includes a substantially vertical column forming a frame and a lifting device movable along the column under the action of a rotation control of a...
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5511439 |
Pushing mechansim
A pushing mechanism has a hollow slotted tube which receives radially extending pins of a threaded shaft. The tube is rotated by the rotor of a motor and is threadably received within an axially...
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5483775 |
Adjustable setting block assembly
An adjustable setting block assembly is disclosed for supporting and leveling infill panels such as window panes and the like. The setting block assembly includes a setting block and a thrust plate...
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5462269 |
Adjustable backboard assembly with drive lock
A lock structure which automatically locks the screw drive upon deactivation of the screw drive and automatically unlocks the screw drive upon activation of the screw drive. The locking structure...
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5449190 |
Trailer pin puller
A detached pin pulling accessory for removing pins locking a bogie to a trailer chassis. The puller is intended for use with a trailer having pin pulling equipment which is intended to be pulled by...
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5426989 |
Method and a device in spindles
For carrying out a method to displace an object from a resting position to to a working position or vice verse, a device (1) is arranged comprising a screw (3) with two threads (7, 9) with...
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5402984 |
Jack mechanism having positive stop means for its crank handle
A jack mechanism having a crank handle that drives a linear motion control all nut and threaded screw. Two rods are included to provide a positive stop in each direction of the jack's limit so as...
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5397207 |
Adjustable ceiling panel installer
An adjustable ceiling panel installer is provided which consists of a base frame member, with a plurality of wheels mounted to the underside of the base frame member, so as to make the base frame...
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5381702 |
Hybrid electro-mechanical-hydraulic drive system, and method of operating same
An electro-mechanical-hydraulic drive mechanism (10) for moving a lead (11) relative to a support (12) includes an electric motor-driven element (14) and a hydraulic reaction element (15). The two...
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5379974 |
Alignment and locking mechanism for extendible jack stand
An extendible multi-frame stand includes at least three frames arranged in a telescoping relationship, having a single coherent alignment and locking mechanism which includes alignment means for...
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5297779 |
Jack mechanism having safety protection for workers
A high/low screw jack stand mechanism is presented having inner and outer telescoping tubes for coarse elevational adjustment and having an adjustment screw and nut assembly for fine elevational...
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5280891 |
Pipe welding support apparatus
A plurality of telescoping tube members, each arranged for inter-locking relative to one another, are provided to include a threaded support rod threadedly directed within an uppermost of the tubes...
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5277405 |
Temporary decking support
A temporary, self-leveling support device is provided having a screwjack body with a threaded hole formed centrally therein for engaging a threaded bolt. The bolt has a load bearing plate affixed...
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