U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that the video game, Pong, was invented by a guy who graduated at the bottom of his engineering class? Nolan Bushnell spent more time running the games at a local amusement park than he did on his studies at the University of Utah. His dreams of working for Disney's amusement empire were dashed when the company wouldn't hire him. Taking a boring job, Nolan daydreamed about electronic versions of popular games. He invented Pong, the first video game, and went on to found Atari Co.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 254/385 - With rotatable, cable contacting, pulley wheel element attached to and reciprocated by driving component of device


Subclass of Class 254 - Implements or apparatus for applying pushing or pulling force
Definition: Apparatus wherein the portion of the device which contacts
No. of patents: 28
Last issue date: 07/06/2010


NumberTitleIssue Date
7748685Winch assembly
A winch assembly (10) comprises a winch drum (18) rotatable about a first axis and carrying a spoolable medium, such as wireline (14) for use in deploying and retrieving tooling into and from a well bore. A carriage sheave (30) mounted on...
07/06/2010
7437782Load sensing safety device for vertical lift
A load sensing safety device comprises a pulley shaft carrying a pulley. The pulley, in turn, carries a belt that effectuates movement of the patient lift boom. A biasing element applies a spring force against the pulley shaft to move the pulley shaft in a first dir...
10/21/2008
7380742Level wind winch cable tensioner
A winch cable storage device includes a cable-tensioning mechanism for attachment to a cable winch. The manual cable tensioner is removably attached to the cable winch and includes a level wind feature. The level winder includes a flexible frame attached between the...
06/03/2008
7363968Umbilical reel safety release
The method of preventing over tension to an umbilical wrapped on the spool of an offshore reel when the umbilical is unexpectedly pulled from the spool on the reel, comprising providing a main disk, mounting the main disk on the spool of the reel with a slip connect...
04/29/2008
7264195Barbed wire installing system using all terrain vehicle (ATV)
A barbed wire installation mechanism is provided that is supported on an ATV rack with one or more poles extending vertically from the ATV rack onto which one or more barbed wire spools are placed. The mechanism includes a base plate to which the poles are attached....
09/04/2007
7234685Apparatus for raising and lowering a banner
An apparatus for raising and lowering an article includes a tube, a motor coupled to the tube for rotating the tube, a plurality of cables secured to the tube and to the article in spaced relation to each other, and a cable indexer synchronously coupled with the tub...
06/26/2007
7232011Equipment for fine positioning of the cars of a multi-stage car for an elevator
A multi-stage elevator car has equipment for fine positioning of the cars wherein the car thresholds are positionable at the level of the floor thresholds. Adjusting equipment operating on the principle of a differential block and pulley is provided for fine positio...
06/19/2007
7118094Rotatable cable guide with cable switching feature
A cage in which two pulley wheels are mounted with tangent circumferences so that their circumferential cable grooves surround a cable passing between the wheels. The cage freely rotates about an axis that passes between the wheels. The cage axis is normal to the pl...
10/10/2006
6983927Level wind apparatus for use on a snow grooming vehicle
A level winder is provided for winding cable in a winch system. The winch is suitable for use on a tracked vehicle, such as a snow grooming vehicle, to assist the vehicle in maneuvering on steep inclines. The level winder uses a pivoting pulley assembly to feed cabl...
01/10/2006
6942091Box for storing matches
Boxes for storing matches house matches. By keeping them in a weather resistant environment, the matches are prevented from degrading. Use of a lid, flap, and a latching mechanism improve safety by ensuring that the matches remain within the match holder. A replacea...
09/13/2005
6942198Lifter
A lifter is constructed to include a hollow main upright, a frame pivoted to the main upright to carry a hand winch, a link coupled between the frame and the main upright, a hollow auxiliary upright axially movably mounted in the hollow main upright, a lifting uprig...
09/13/2005
6931839Apparatus and method for reduced cold start emissions
An exhaust system for an internal combustion engine having a plurality of cylinders, comprising: a exhaust manifold for providing fluid communication of exhaust of the plurality of cylinders to a catalytic converter, the exhaust manifold comprising a first exhaust p...
08/23/2005
6910679Variable controlled guide device for wireline spooler
A guide device for a wireline spooler having an axis. A carriage is spaced from the spooler with the carriage including an upstanding fairlead to receive a wireline. A first mechanism reciprocates the carriage laterally parallel to the spooler axis. A second mechani...
06/28/2005
6840326Lifting apparatus and method for oil field related services
Apparatus and method are provided for lifting heavy loads beneath the floor of a drilling rig or a platform. A base skid supports tables to which winch bases are attached. Winches, usually four in number, are placed on the winch bases and the cables of the winches a...
01/11/2005
6443431Load compensated right angle diamond screw levelwind
A cable winding system has a powered spool for receiving the cable in continuous evenly distributed coils. A levelwind mechanism is attached to the spool and guides the cable onto the spool by a pawl traversing a powered diamond screw groove. The levelwin...
09/03/2002
6095501Stretch compensation in a hoisting system for a derrick
An apparatus for a derrick, comprising two or more hydraulic piston-cylinder arrangements (10, 11) for raising and lowering a yoke (8) which travels on guide rails (7) in the derrick (1) itself, where two or more wire lines (13) are strung over sheaves (1...
08/01/2000
6032929Arrangement in connection with a yoke in a hoisting system for a derrick
A hydraulically-operated hoist is disclosed. The hoist includes a plurality of hydraulic piston/cylinder arrangements, each having an upper end. Two guide rails are disposed in parallel with the hydraulic piston/cylinder arrangements. A self-aligning yoke...
03/07/2000
5816565Hydraulic blowout preventer lifter
A lifting apparatus for lifting a heavy object. The lifting apparatus including a frame assembly having a pair of side beams spaced parallel to one another. A sliding sheave assembly is mounted to the frame assembly. The sliding sheave assembly is positio...
10/06/1998
5632470Wire fencing apparatus
A wire fencing tensioning apparatus comprising a generally rectangular shaped open frame carriage mounted on a standard three-way hitch on the rear of a tractor. The generally rectangular shaped open frame carriage comprises a plurality of corresponding p...
05/27/1997
5518477Multi-station exercise machine with a common weight stack and cable tension isolation
A cable and pulley system for a multi-station exercise machine involving a tensioned cable led over a series of pulleys, at least one of which is a cradled pulley normally nested in a cradle and radially held in the cradle by the force of the tension on t...
05/21/1996
5348273Lifting appliance, especially for a patient lifting device
A lifting appliance, especially for a patient lifting device, comprises a telescopic column (10) having a carriage (22) which is reciprocable in the longitudinal direction of the column under the action of the telescopic extension and retraction motions o...
09/20/1994
5201628Manually operated pickup truck hoist
A manual powered hoist and ramp system for pickup trucks enables a single person to lift heavy objects located on handtrucks or dollies onto the loading platform of the truck. The truck tailgate has a pivoted flap extension to form a ramp inclined from th...
04/13/1993
4919393Deepwater subsea lowering/lifting system
Fixed and traveling cable blocks with first and second cable grip assemblies are supported adjacent the load to be lifted or lowered. A lifting/lowering cable is threaded through the cable grip assemblies before being secured to the load while a separate ...
04/24/1990
4340216Bearing and support
In a bearing and support for use either as a bearing, per se, or as a bearinged support for other items and incorporating the bearing of this invention; the bearing includes at least a pair of rotatable members that rotate or counter-rotate about a common...
07/20/1982
4183440Extensible boom
An extensible boom, which comprises a first part which is pivotally anchored to a rotatable pedestal so that the boom may be raised or lowered. A second part of smaller lateral dimension is adapted to slide within the first part. The outer end of the seco...
01/15/1980
4133359Woodsplitter
A method and apparatus for splitting logs, comprising an engine or prime mover actuating a reciprocating trolley through mechanical linkages along a fixed bed such that the trolley may urge a log to be split against a blade or wedge with mechanically ampl...
01/09/1979
4074892Plural bearing and sheave assembly
A plurality of adjacent sheaves are disposed around a common shaft. Each sheave carries a plurality of ball bearings engaged between an inner race of the sheave and the shaft. The ball bearings in one sheave are exposed on one side and bear against an adj...
02/21/1978
4005851Hydraulically operated drilling apparatus
A hydraulically operated drilling apparatus having a main mast on which an extension is mounted having a rope winch or the like for operating a rotary drilling head or power capstan. The drilling head is guided on a pair of diametrically opposed rails fix...
02/01/1977
 
Sign InRegister
Username  
Password   
forgot password?