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

Icon_funbox Bizarre Patents

Patent No. 5787895

Kissing Shield

A kissing shield comprised of a thin, flexible membrane and a frame or holder.

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 254/346 - Drive also includes clutch mechanism having coaxial, rotatable relatively shiftable axially, power transmitting components


Subclass of Class 254 - Implements or apparatus for applying pushing or pulling force
Definition: Apparatus wherein the drive also includes a clutch mechanism
No. of patents: 49
Last issue date: 02/22/2011


1    
NumberTitleIssue Date
7891641Manual disengaging and self-engaging clutch
A clutch mechanism (75) for use with a machine to disengage the machine until normal operation thereof is commenced. The clutch mechanism (75) includes a clutch engaging member (130) movable into engagement with a notch (77) of the ring g...
02/22/2011
7793919Hand winch
Hand winch comprising a wind roll for receiving a flexible elongated member, an operation shaft engaged with the wind roll for transmitting forces therebetween, a friction brake including a gear member being in engagement with the wind roll and having a thrust posit...
09/14/2010
7780146Retrieval assembly
A retrieval assembly is configured and arranged for use with a retractable lifeline assembly including a cable assembly. The retrieval assembly is releasably engagable with the cable assembly to pay out or retract the cable during rescue. ...
08/24/2010
7588233Winch assembly including clutch mechanism
A winch assembly includes a housing member, a drum rotatably coupled to the housing member, a drive shaft extending through the drum and into the housing member, a gear train located within the housing member and driven by the shaft, a coupling member axially fixed ...
09/15/2009
7513485Automatic winder
An automatic winder has a base, motor, a transmission device and a reel. The motor is mounted on the base. The transmission device connects to the motor and has a pair of high-speed gears and a pair of low-speed gears. The reel is mounted on the transmission device ...
04/07/2009
7377485Replacement motorized drive unit for boat lifts
A three-phase drive motor is utilized to operate a boat lift. In one example, a drive motor arrangement for replacing manual drives on an existing boat lift winch shaft comprises a worm gear box with a worm driven by an integrally mounted motor on the worm gear box....
05/27/2008
7350771Gear for electrically/hydraulically and manually driven sheet winches
By modern gears for electric/hydraulic and manually driven sheet winches, demands are made on the presence of a free-wheeling mechanism (24) in case that the drive unit fails, and it is also desirable that the gear takes up as little space as possible, irresp...
04/01/2008
7344121End surface gear-type overload protection device for manually operated hoists
An end surface gear-type overload protection device for manually operated hoists that utilizes a disc-shaped spring to control tension such that when the gears are in a leftward rotation and engagement, operation continues normally. However, during rightward rotatio...
03/18/2008
7303183Safety brake mechanism for a winding drum and method for grinding a safety brake
The invention concerns a safety brake mechanism for the winding drum (8) of a hoisting machine that can be driven via a motor (4) with lifting gearbox (3), which is substantially braked to a standstill without jerking when the lowering speed is ...
12/04/2007
7284745Portable raising and lowering device and equipment therefor
A raising and lowering device, particularly suitable for incapacitated human or animal patients. The device includes a load carrying support having at least one elongated arm including a proximal end section and distal end section. The arm is pivotable on the device...
10/23/2007
7273207Bi-directional winch
A winch includes a first cable reel and a second cable reel. A driveshaft rotates the first cable reel and the second cable reel. The driveshaft is moveable along an axis of rotation between a first position and a second position. The driveshaft operationally engage...
09/25/2007
7140598Freefall windlass with governor
A freefall-type windlass includes appropriate gearing for moving the windlass spool in a retrieve direction to wrap anchor cable thereabout or to permit the anchor to drop by gravity thereby unwrapping the anchor cable from the spool. A governor gear is incorporated...
11/28/2006
7000904Cable winch structure
A cable winch structure for vehicles is disclosed. The cable winch includes a rolling cylinder connected to a speed-reducing device at one lateral side, and having a motor connected to one end of the roller cylinder so that the speed reducing motor transmits the pow...
02/21/2006
6966545Chain block
A chain block with a drive motor (2) with a motor shaft (11), which is connected at the take-off side via a slip clutch (50) to a transmission input shaft (14), having a first gear (18a) and mounted in a housing (1) b...
11/22/2005
6916267Method and apparatus for selective engagement and disengagement of a ring gear of a gear set
Apparatus for the selective engagement and disengagement of a ring gear of a gear set in which an actuator can be displaced between a first position engaging the ring gear and a second position disengaged from the ring gear selectively by a manually operable mechani...
07/12/2005
6767004Replacement motorized drive unit for boat lifts
A drive motor arrangement for replacing manual drives on an existing boat lift winch shaft comprises a worm gear box with a worm driven by an integrally mounted motor on the worm gear box. A worm gear is mounted on a tubular cross shaft extending outwardly on opposi...
07/27/2004
6527253Lifting device
The invention relates to a lifting device with a housing having a drive wheel, a friction disk brake, a load wheel and a gear arranged sequentially in an axial direction inside the housing. The drive shaft extends through the friction disk brake and the l...
03/04/2003
6517054Lever hoist with overload preventing device
A lever hoist with an overload preventing device comprises a pressing member for rotatably pressing a pressed member via a reverse rotation preventing ring and a pair of friction members, and a rotation drive member capable of transmitting rotating force ...
02/11/2003
6352243Chain hoist with overload prevent device
The object is to provide a chain hoist with an overload prevent device, ensuring an easy and secure adjustment of load limit numerical values. It comprises a pressing drive member 8 for pressing and rotating a pressure receive member 7 by way of a backsto...
03/05/2002
6224039Chain block
A chain block which can ensure free rotation of a hand wheel when the hand wheel is rotated in a hoisting direction in the state in which an overload protection mechanism is in operation and also can ensure the lowering of a load when the hand wheel is ro...
05/01/2001
6007054Hand operated chain block having an improved cover
To provide a hand operated chain block capable of facilitating the fitting of the brake cover to the related side plate without worsening the appearance of the chain block, a brake cover is provided, at a marginal portion therearound, with a flange portio...
12/28/1999
5921529High line pull winch assembly
A hydraulic winch which is capable of generating significant amounts of torque and providing very high line pull even after a significant amount of cable is wrapped onto its spool. The winch spool is also capable of carrying a large amount of thick cable....
07/13/1999
5421553Lever-type winch idler device
An idler device is for use in a lever-type winch having a brake including a hub fixed to a pinion shaft, an actuating member mounted on a threaded portion of the pinion shaft, and a ratchet wheel and two brake plates interposed between the hub and the act...
06/06/1995
5374035Winch with power train, manual operation option, and particular brake assembly
A winch includes a reversible electrical motor with output shaft which drives a drum through a drive mechanism with multiple sprockets and gears to take up and let out a cable. The output shaft is connected through a one-way bearing to a brake hub. The br...
12/20/1994
5217084Load limiting apparatus for a hoist
A fall arresting device is provided having fall arresting apparatus which permits application of a force to rotate a shaft in a clockwise direction and permits controlled rotation of the shaft in a counter-clockwise direction but prevents uncontrolled rot...
06/08/1993
5156377Lever-operated hoist
A lever-operated hoist having a structure for continuously lowering the lower hook side chain and end side chain of load chains in no-load state comprising a pressure drive member movably screwed in the axial direction on a drive shaft, a rotation limitin...
10/20/1992
5150768Load limiting apparatus for a hoist
Apparatus for limiting the amount of force applied to a cable of a hoist by applying a force on clutch plates which are operatively joined to rotatable plates so that there is relative rotation between the clutch plates and the rotatable place when a forc...
09/29/1992
5123630Portable winch
An improved portable winch is described including a reversing drive mechanism. The drive mechanism includes a drive bearing which is movable between two positions. In one position the bearing is able to transmit the rotational motion of the input shaft di...
06/23/1992
5090507Load limiting apparatus for a hoist
Apparatus for limiting the amount of force applied to a cable of a hoist by applying a force on clutch plates which are operatively joined to rotatable plates so that there is relative rotation between the clutch plates and the rotatable place when a forc...
02/25/1992
4834341Hoisting apparatus
A hoisting means comprises a rotary member for winding on or interlockingly guiding weight suspension means like a cable, a chain or similar means, drive means for the rotary member, first brake means for indirectly inducing a braking action onto the rota...
05/30/1989
4823630Distributor for independently distributing rotational drive in a sailing craft
A distributor for independent plural drive inputs (14,15) to plural drive outputs (12,13), especially for sailing craft, enables permutation of drives e.g. both to one output, both to the other or independently to each. Dog clutches (34-37) are engageable...
04/25/1989
4736929Winch having split housing and drive components
A winch design for consumer applications wherein the planetary carrier assemblies are split between the two ends of the drum. The drum is mounted on heavy duty brackets and the housing elements surround the planetary carrier assemblies and also, independe...
04/12/1988
4666128Single head capstan winch
A single head capstan winch comprises a capstan head which is movably arranged on a supporting frame for being guided relative to a pressing roller and is also rotatably arranged on this supporting frame and provided with a dynamically balanced surface of...
05/19/1987
4605111Hoist
A hoist includes a shaft driven by external force, a driving shaft connected to the shaft, a reduction gear train for transmitting rotation of the driving shaft to a load sheave, a mechanical brake assembly in the reduction gear train, and an overload saf...
08/12/1986
4588167Portable power driven winch
A small, light, portable winch having a small gasoline engine, a centrifugal clutch connecting the engine through reduction gears, sprockets, and a chain to a spool having a cable which can be wound on the spool. A positive clutch can be disengaged to per...
05/13/1986
4552340Portable winch
A light-weight portable winch which incorporates a low-horsepower motor, a speed-reducing transmission which is supported by outrigger bearings, a cable take-up drum which is disengagable from the speed-reducing transmission, and a positive lock brake whi...
11/12/1985
4491208Hydraulic control system for a hydrostatic transmission and clutches
The hydraulic control system of this invention uses a series of hydraulic valves for directing hydraulic fluid to energize and pressurize rapidly the various clutches of a hydraulically driven transmission, while protecting the input clutch of the pump. A...
01/01/1985
4489919Safety winch with disengageable drive
A winch has a drum arranged on a rotatable shaft, a rope member connected with the drum and connectable with a load, a speed-changing transmission, a drive element arranged to drive at least one member of the transmission, and a clutch arranged to connect...
12/25/1984
4448395Improvements in and relating to winches
A winch arrangement intended for the rapid shifting of aircraft or other wheeled vehicles which incorporate their own braking system and which may be under the control of an occupant during winching, is so constructed as to provide compensation for wide f...
05/15/1984
4444375Hunter's towing machine
An adapter that converts any normal chainsaw into a winching type towing machine for use by hunters who fell large game such as elk or deer, and must haul their fallen prey over rugged and remote terrain. The adapter replaces a chainsaw chain and guide ba...
04/24/1984
1    
 
Sign InRegister
Username  
Password   
forgot password?