Matches 101 - 150 out of 236 < 1 2 3 4 5 >


Match Document Document Title
6361460 Device for driving a sprocket of a bicycle  
The present invention relates to a device for driving a sprocket of a bicycle, which enables a rider to easily rotate both pedals even with little force when both cranks of the pedal are...
6361461 Multiple-speed chain driving device  
A multiple-speed chain driving device includes a shaft, a rotors'assembly, a chain driving sprocket, and a shifting assembly. The rotors'assembly is mounted on the shaft and includes three rotors...
6340338 Bicycle sprocket  
A sprocket assembly for a bicycle is provides with at least one large sprocket and at least one small sprocket. The large sprocket is modified to allow a bicycle chain to move smoothly from the...
6317989 Chain saw nose sprocket  
A nose sprocket for the saw chain of a chain saw includes radially projecting teeth, each tooth having leading and trailing edges. Each of those edges includes a straight inner portion and an...
6277045 Thin profile cam sprocket with integrated timing target  
In an internal combustion engine, a shaft driving apparatus and timing assembly in the form of a camshaft sprocket having first and second ends extending perpendicular to the axis of rotation. The...
6224514 Exercise apparatus  
Exercise apparatus has a base to which is pivoted one end of a rockable arm, the opposite end of which is coupled to one end of a force transmitting line by means of which the arm may be rocked...
6224508 Trunnion of a toroidal continuously variable transmission and manufacturing process thereof  
A trunnion (3) of a toroidal continuously variable transmission comprises a pulley (38) having a pulley groove (30) and a notch (37) crossing the pulley groove (38). The trunnion (3) rotates in...
6213238 Motorcycle sprocket assembly  
A motorcycle includes a rear wheel sprocket assembly made by drawing a piece of material into a ring-shaped part having a flange portion, and roll-forming teeth into the flange portion. An...
6142901 Belt drive  
A belt drive includes a toothed belt and a toothed wheel which have engaging tooth ribs and tooth grooves. The tooth ribs and the tooth grooves extend in an arcuate shape over the breadth of the...
6139456 Bicycle sprocket  
A bicycle sprocket includes a number of annularly equidistant teeth formed on an outer periphery thereof, the teeth on the sprocket being diametrically symmetrically formed. The sprocket includes...
6129646 Apparatus for propelling a cycle  
Manually powered propulsion apparatus includes two pedals mounted on an endless flexible member. Depression of either pedal will cause the other to move to a raised or retracted position. Two...
6123635 Propulsion apparatus for a cycle  
Manually powered propulsion apparatus for propelling a cycle includes two pedals which move along parallel linear tracks. A flexible member forming an endless loop is connected to the two pedals...
6123636 Propulsion apparatus  
Manually-powered propulsion apparatus for propelling a cycle includes two pedals and two rotatable crank members connected to the drive wheel of the cycle. Two flexible cables are connected to the...
6099427 Self-cleaning pulley device and toner image reproduction machine including same  
A self-cleaning pulley device includes a cylindrical member including a body portion having an outer surface; a series of spaced apart recesses formed from the outer surface into the body portion,...
6090002 Manually powered propulsion apparatus  
Manually powered propulsion apparatus includes a pedal and a rotatable member. A flexible transmission member is connected to the pedal and to the rotating member and includes pivotally...
6086495 Split sprocket assembly  
A split sprocket assembly. The sprocket assembly does not require additional separate fasteners and extends substantially parallel to the axis of the drive shaft. Further, the sprocket assembly...
5980406 Sprocket assembly for a phased chain system  
A chain and sprocket system includes a plurality of chains and sprockets. The system includes a central shaft, two chains, and two identical sprockets. Although the two sprockets have identical...
5980407 Sprocket and brake disc having a function to prevent a warpage  
A rotary member in the form of a sprocket or a brake disc for transmitting a drive force or brake force, the rotary member having an annular hub portion arranged on a center side, an annular ring...
5890980 Toothed belt drive gear for a motor vehicle wheel  
A toothed belt drive gear (1) for a motor vehicle wheel, especially a pulley wheel for a motorcycle, is connected rotation-fast with the hub of a drive gear and has an outer rotating toothed ring...
5876159 Sprocket trimming method for the multi-stage sprocket assembly  
A sprocket trimming method for a multi-stage sprocket assembly is disclosed which includes the steps of: (1) aligning the two sprockets at a gear shift position where a chain is escaping from one...
5876296 Gear shifting sprocket set for bicycle chain wheel  
A bicycle sprocket set is composed of a small sprocket and a large sprocket coaxial with the small sprocket. The large sprocket is provided with an axially oriented recess in the bottom portion...
5865699 Coated chain saw nose sprocket  
A nose sprocket for chain saws includes an inner peripheral surface defining a bearing race, and teeth disposed at an outer peripheral portion of the nose sprocket. Side surfaces of the nose...
5830095 Sprocket and manufacturing method thereof  
A sprocket made of low carbon steel of not more than 0.25 wt % in the carbon content comprising teeth portion which are quenched to a hardness close to the theoretical maximum quenching hardness...
5816968 Idler sprocket assembly for a phased chain system  
A chain and sprocket system includes a plurality of chains and sprockets. The system includes a crankshaft, an idler shaft and two overhead camshafts. The two sprockets on the idler shaft that...
5782712 Bicycle chain sprocket  
A sprocket for meshing with a bicycle chain, comprises a central aperture having a multi-lobed profile, which is defined by notches which extend up to in proximity of the outer circumferencial...
5782713 Bicycle gear crank arresting device  
The bicycle gear crank arresting device comprises an axle, a first arresting member and a second arresting member. The axle is fastened pivotally with the five-way tube of a bicycle frame and is...
5759124 Multistage sprocket used in a bicycle rear derailleur system  
A multistage sprocket assembly for a bicycle with at least one large sprocket and one small sprocket disposed adjacent to each other and assembled in a relationship such that the distance between...
5728019 Belt drive  
A drive system, especially a belt drive for a multi-axial vehicle running gear, has a drive drum about which the belt is looped and provided with a ring with entrainers which engage teeth on the...
5540111 Drive apparatus and method  
Drive apparatus and method for converting linear motion to rotary motion and vice versa are disclosed. The drive apparatus includes a rack having a plurality of spaced first engagement members...
5389044 Split sprocket and retainer assembly  
A split sprocket and retainer assembly are provided for mounting on the drive shaft of a chain drive system, such as a conveyor drive system. The sprocket is split diametrically into two sections...
5380254 Finished forged sprocket segment method and apparatus  
A finished toothed sprocket segment is forged in a cavity of a first die by a second die having a protrusion which extends into the cavity. The sprocket segment has first and second spaced datum...
5348515 Sprocket wear indicator  
A wear indicator for a sprocket adapted to have an endless track arranged in driving association therewith. The sprocket has opposite side surfaces and a series of sprocket teeth disposed...
5324238 Non-uniform torque transmitting mechanisms such as bicycle chainwheel sets  
A crank, 14, driven wheel from a central boss, 20, to an outter rim, 22, via ribs, 12 (12a or 12b), transmitting slightly improved torque to a chain (belt, rope or similar), 16, via chain wheel...
5318483 Sprocket with asymmetrical teeth for mining conveyors  
A unidirectional sprocket includes a hub and a series of radially arrayed sprocket teeth. Each of the sprocket teeth include a root at the point of connection with the hub, a radially extending...
5314366 Adapter chainring  
The invention is an adapter chainring for a multiple speed bicycle comprising a derailleur and a crankset having outer and inner chainrings. The adapter chainring has teeth disposed on its outer...
5308290 Belt pulley  
A belt pulley is described which includes a pulley member and a flanged wheel. The pulley member has a belt-bearing surface and a projection disposed at a position axially adjacent to the...
5239886 Stability high gain and dynamic stiffness servo axis drive system and method  
A high gain and high torsional stiffness servo axis drive system for machine tools is described as providing improved stability. This system includes a servo motor mounted on a base and connected...
5224903 Chain wheel having a shrink ring made of a polymer material  
A chain wheel having a basic element with a cylindrical outside surface and a chain pinion which projects beyond the outside surface in the radial direction. At least one shrink ring made of a...
5217413 Gear crank apparatus for a bicycle for supporting a plurality of chainwheels  
A gear crank apparatus for a bicycle for supporting a plurality of chainwheels. This apparatus includes a boss secured to an end of a crank axle, a chainwheel supporting member extending radially...
5137500 Sprocket conversion kit for garage door opener  
A sprocket conversion kit for a garage door opener which includes a drive plate detachably mountable on a high speed output drive sprocket to provide an alternative low speed sprocket drive for...
5133694 Pulley  
Cheeks (2, 3) in the form of a solid rim are made integral with a pulley body (1) in that their cylindrical inside surfaces (6) are fitted under tension against cylindrical surfaces forming the...
5131890 Reduced friction spool bearing and method of making same  
A sprocket assembly, particularly adapted for use in wastewater settling tanks, is provided, which assembly is adapted to be supported on a shaft having a longitudinal axis. The sprocket assembly...
5129865 Spherical tooth pulley  
In an annular pulley for driving a belt having a series of spaced openings therein, the improvement comprising, a series of circumferentially-spaced annular openings in the pulley periphery, a...
5104360 Apparatus for actuation of shift elements  
An apparatus provided with a planet transmission gear drive with which transmission gear drive stages are constructed built-up and including the hollow-gear or annular gear ring arrangement fixed...
5085620 Multi-gear cluster for bicycle  
A multi-gear cluster for a bicycle having at least two gears of different diameters. The larger gear includes at a peripheral part thereof a disengagement-facilitating portion for facilitating a...
5067370 Variable crank pedal drive for bicycles and the like  
A drive system for driving any driven device, such as the rear wheel of a bicycle or the like, comprising a pair of oppositely-directed input torque crank arms supported for independent rotation...
5066264 Gear for bicycles and a freewheel for bicycles including a plurality of such gears  
A freewheel for bicycles has a plurality of gears each of which, with the exception of the one with the smallest diameter, has teeth arranged in successive sets of three constituted each by teeth...
5035681 Reduced friction sprocket assembly for use in corrosive environments  
A sprocket assembly, particularly adapted for use in wastewater settling tanks, is provided, which assembly is adapted to be supported on a shaft having a longitudinal axis. The sprocket assembly...
5026327 Belt construction, rotatable pulley and combination thereof and methods of making the same  
An endless power transmission belt construction, a rotatable pulley therefor, a combination of the belt construction and pulley and methods of making the same are provided, the belt construction...
5021033 Drive sprocket for chain saws  
A closed rim-type drive sprocket for chain saws, comprising two axially spaced plates for supporting the side links of a saw chain, a gear surface disposed between the lateral plates. The gear...

Matches 101 - 150 out of 236 < 1 2 3 4 5 >