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Class 474/73 - Including separate belt on each of coaxial pulleys selectively engaged in drive train


Subclass of Class 474 - Endless belt power transmission systems or components
Definition: Subject matter including plural pulleys* mounted
No. of patents: 20
Last issue date: 07/03/2007


NumberTitleIssue Date
7237647Electric power steering apparatus
An electric power steering apparatus includes a speed reducing mechanism for decelerating the rotation of a rotatable shaft in an electric motor and a converting mechanism for converting the output rotation of the speed reducing mechanism into the axial movement of ...
07/03/2007
7100472Two speed transfer case having two transfer chains
A transfer case is provided for a vehicle having front and rear axles. The transfer case includes first and second input clutches connected with an input member, and first and second transfer chains having different chain ratios operably connectable between the inpu...
09/05/2006
7018279Movable machinery, including pavement working apparatus and methods of making
A movable machine, for example a saw, has a light construction using composite materials such as fiber reinforced resins and a closed cell foam. The saw may have a housing formed from multiple skins of the composite materials in which is located the closed cell foam...
03/28/2006
6955167Pavement working apparatus and methods of making
A portable machine, for example a saw, has a light construction using composite materials such as fiber reinforced resins and a closed cell foam. The saw may have a housing formed from multiple skins of the composite materials in which in the closed cell foam. Metal...
10/18/2005
6929574Belt drive two speed shift mechanism
A two speed shift mechanism for a belt drive that includes a rotatable shaft with a first pulley, and a tube concentric with the shaft and rotatable therearound. The tube includes a shift hub supporting a second pushy in axially spaced relation to the first pulley f...
08/16/2005
6146296Multiple speed transmission for connecting an air conditioner compressor of a vehicle to the engine of the vehicle
A multiple speed transmission for connecting an air conditioner compressor of an automobile to a prime mover of the automobile. The transmission includes driving apparatus, driven apparatus, and mounting apparatus. The driving apparatus operatively connec...
11/14/2000
6134978Transmission mechanism for a scanner
A transmission mechanism which includes a pair of gears bilaterally disposed at one end of a scanning path defined inside a scanner, a first pair of fixed pulleys respectively and fixedly mounted on the gears, a second pair of fixed pulleys bilaterally di...
10/24/2000
6081980Ecliptic drive
A drive apparatus for a simultaneous operation machine includes a plurality of pulleys and drive belts in a unique orientation to simultaneously drive a plurality of spindles. A first outer spindle is driven about a first axis of rotation to perform a fir...
07/04/2000
5830094Transmission for converting rotary motion into linear motion
A transmission for reducing the pulley ratio between a drive shaft and a transmission shaft. The transmission is adapted to convert a higher speed rotary motion to a lower speed linear motion. The transmission has two pulleys rigidly mounted together on a...
11/03/1998
5827143Two belt over-running clutch pulley
A variable speed drive device for mounting to a rotatable shaft and being driven by first and second belts. The device includes a first pulley of a first diameter and a second pulley of a second diameter, each engaging one of the belts. The first pulley m...
10/27/1998
5690567Transmission for converting rotary motion into linear motion
A transmission for reducing the pulley ratio between a drive shaft and a transmission shaft. The transmission is adapted to convert a higher speed rotary motion to a lower speed linear motion. The transmission has two pulleys rigidly mounted together on a...
11/25/1997
5492349Rowing locomotion device
An improved self-propelled wagon of the type having a body including front and rear ends, a front axle pivotally mounted to the front end, a rear axle mounted to the rear end, and a propelling means for transmitting the human force of the user to the rear...
02/20/1996
5292286Bicycle power train assembly
A bicycle power train assembly includes a crank axle, a primary driving sprocket cluster mounted on one end of the crank axle, a rear wheel axle, a primary driven sprocket cluster mounted on one end of the rear wheel axle, a primary drive chain trained be...
03/08/1994
5055087Transmission for driving a machine tool spindle
A variable speed motor rotates the spindle of a machine tool by way of a two-speed transmission. The transmission includes two endless belts extending directly between the spindle and the output shaft of the motor. One belt is connected to the output shaf...
10/08/1991
4608885Multi-range continuously variable power transmission
A power transmission combines a continuously variable belt drive in series relation with a multi-ratio gear arrangement between the transmission input and output shafts. The gear arrangement can be selectively changed between low and high ratios. In each ...
09/02/1986
4547076Method and apparatus for making soft-ice in small quantities
Soft-ice mixture, consisting of water or milk and commercially available powder, is frozen solid in a cylindrical container, then presented to a machine whereby the container is pressurized and which has an agitator that engages the surface of the solid t...
10/15/1985
4530256Motor vehicle transmission having a variable pulley in parallel with an interlocking gear
A transmission for a motor vehicle comprises an input shaft connected to the crank shaft of an engine, an output shaft connected to a driving wheel, a V-belt stepless variable speed gear provided between the input and output shafts for providing different...
07/23/1985
4304150Transmission unit for motor vehicles
A motor vehicle transmission unit provided with an automatic variable ratio transmission mechanism and a supplementary fixed ratio transmission mechanism which transmits torque from an input shaft to an output shaft of the unit in conditions of low speed ...
12/08/1981
4158316Chain-drive transmission
A chain-drive transmission including two sets of a plurality of sprockets, each set rotatably mounted on a rotatable shaft. Sprockets on each shaft are paired with a corresponding sprocket on the other shaft and are joined by the drive chain. The diameter...
06/19/1979
3933059Deep drilling machine demountable for helicopter transport
This invention is directed to a deep bore hole drilling machine which is designed for portability so that each part of the system can be broken down into subassembly units which are of less than 4,000 pounds total weight. Thus, the entire drilling system ...
01/20/1976
 
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