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Class 474/161 - Having nonmetallic component


Subclass of Class 474 - Endless belt power transmission systems or components
Definition: Subject matter wherein the structure of the pulley* or
No. of patents: 111
Last issue date: 12/27/2011


1      
NumberTitleIssue Date
8083624Roller chain sprocket having an improved tooth form and metal cushion rings
A cushion ring sprocket assembly and chain drive system are designed to prevent roller-to-root radial contact. Hard contact between the chain link plates and the cushion rings, and corresponding hard contact between the cushion rings and the sprocket hubs limit radi...
12/27/2011
7967709Bicycle sprocket
A bicycle sprocket is provided with a metallic sprocket ring part and a non-metallic inner ring part. The metallic sprocket ring part has a crank facing surface, an opposing surface, an inner periphery and an outer periphery with a plurality of sprocket teeth arrang...
06/28/2011
7850564Bicycle sprocket
A bicycle sprocket is provided that has a synthetic resin fastening part, to facilitate weight saving and prevent the reduction of fastening power (strength) due to deterioration or deformation of the synthetic resin. The sprocket includes a sprocket ring part and a...
12/14/2010
7824287Bicycle sprocket
A bicycle sprocket is provided that has a sprocket ring part, a synthetic resin fastening part and at least one attachment part. The synthetic resin fastening part is non-movably coupled to the sprocket ring part at a location radially inwardly of the sprocket teeth...
11/02/2010
7713156Chain transmission device
In a chain transmission having a sprocket with an elastic ring sandwiched between a central hub and an annular toothed outer member, the tooth form is such that the root diameter, that is, the diameter of the tooth gap bottom circle, is greater than the root diamete...
05/11/2010
7699733Chain transmission device
In a chain transmission, vibration reduction is improved by an elastic member, sandwiched between an inner hub of a sprocket and a toothed outer circumferential member, in combination with a sprocket tooth configuration in which two or three different tooth form pit...
04/20/2010
7645204Pulley assembly for maintaining constant position of a bearing outer race relative to a pulley, and method
A method for maintaining constant position of a bearing outer race relative to an axial bore of a pulley comprising providing a pulley having a central axial hub exhibiting a concentric axial bore therethrough, the concentric axial bore having an axial bore surface;...
01/12/2010
7371200Roller chain sprocket with resilient cushion rings and root relief
A sprocket includes a hub and a plurality of teeth projecting radially outwardly from the hub. At least one cushion ring is located adjacent the teeth, and the cushion ring defines a plurality of compression pads separated from each other by transverse grooves. Each...
05/13/2008
7297081Idler pulley with integral bearing carrier insert and method
An idler pulley with an integral bearing carrier insert comprising: a pulley body having a peripheral surface for accepting and retaining an endless belt; and a tubular bearing carrier insert forming a central hub along a perpendicular axis of the idler pulley body,...
11/20/2007
7232392Cushion ring sprocket assembly and method
A method for installing a cushion ring on a sprocket body to construct a sprocket assembly includes applying a deforming force to a cushion ring so that an opening therein is deformed to a shape that accommodate passage of a non-circular flange of a sprocket body th...
06/19/2007
7231856Apparatus and method for detecting dangerous conditions in power equipment
A machine such as a saw, jointer, planer, etc. is disclosed. The machine has cutting tool, a direct drive mechanism configured to move the cutting tool, a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool,...
06/19/2007
7197959Coupling structure mountable to a rotatable shaft
A coupling structure capable of being removed in an undamaged condition from a rotatable shaft. The coupling structure includes a metallic insert and a polymer hub surrounding the metallic insert. The metallic insert features a sleeve and a flange at the leading edg...
04/03/2007
7179341Integrated sprocket and housing and manufacturing method therefor
An integrated sprocket and housing used in a variable valve timing mechanism. The integrated sprocket and housing includes: a sprocket portion which is formed in a substantially annular shape, and which has teeth on the outer circumference thereof; and a housing por...
02/20/2007
7159772Apparatus and method for mounting an RF tag on a conveyor trolley
A system for mounting an RF tag to a conveyor trolley wherein the tag is embedded in a block of material shaped to fit within an annular recess formed between the hub and outer rim of the trolley wheel. The shaped block is secured to the wheel. ...
01/09/2007
7108622Roller chain transmission device
A roller chain transmission comprises a sprocket having at least first teeth and second teeth having different tooth forms, the first teeth and second teeth being randomly arranged, and the number of the second teeth not exceeding four times of the number of the fir...
09/19/2006
7097580Sprocket for a silent chain and method of manufacturing the same
A sprocket for preventing the partial wear on the teeth of the sprocket. The teeth of the sprocket comprised of a pair of side portions located on opposite sides of a tooth and a central portion located between the pair of sides. The pair of side portions has a hard...
08/29/2006
7094170Cushioned sprocket and improved inverted tooth chain for use with same
A sprocket for an inverted tooth chain includes at least one and typically first and second resilient cushion rings for adapted to be engaged by the guide links of an associated inverted tooth chain. The sprocket is usable with conventional inverted tooth chains and...
08/22/2006
7074147Roller chain sprocket with symmetric cushion rings
A sprocket includes a hub and a plurality of teeth projecting radially outwardly from the hub. At least one cushion ring is located adjacent the teeth, and the cushion ring defines a plurality of compression pads separated from each other by transverse grooves. Each...
07/11/2006
7052424Cantilever tooth sprocket
A drive sprocket assembly for driving an endless chain assembly for propelling a machine has a hub portion and flexible cantilever teeth in which each tooth is separately deflectable upon impact by a bushing of the endless chain assembly. The flexibility of each too...
05/30/2006
7041149Sintered sprocket for silent chain and production method therefor
A sintered sprocket has a high overall density and excellent contact pressure resistance. The sprocket is produced from a sintered alloy selected from the following alloys ((1) to (3)), is densified to have a relative density of 95% or higher in the surface layer of...
05/09/2006
7032983Silent and reduced vibration chainwheel
A silent and reduced vibration chainwheel includes a disk, multiple teeth and an energy absorber. The disk has an outer edge, two opposite sides and at least one recess. The teeth are formed radially at and extend out from the outer edge of the disk. The energy abso...
04/25/2006
6993993Sheet metal outsert-molded gear
A sheet metal outsert-molded gear, in which a molded resin gear is formed by outsert-molding along the outer perimeter of a disk-shaped sheet metal, characterized in that one or more notches, holes, or protrusions are provided in the outer perimeter of the disk-shap...
02/07/2006
6964559Two shaft vacuum pump with cantilevered rotors
A vacuum pump (1) comprising a pump chamber casing (5) accommodating two co-operating rotors (2, 3) which are respectively arranged on a shaft (8, 9). A bearing/gear chamber (6) is disposed adjacent to the pump chamber casing (5...
11/15/2005
6962209Simple, durable and easy-to-use earthworking machine
A sod cutter (10) is disclosed including a frame (12) formed by welding the free edges of mount, frame and end plates (46a, 46b 46c) bent relative to one of two side plates (46) to the corresponding edge...
11/08/2005
6932732Toothed belt wheel with a collar
A cog belt pulley defining an axis of rotation having an outer circumferential surface oriented about the axis of rotation and including a plurality of teeth for engagement with at least one cog belt. The pulley is distinguished in having at least one flange segment...
08/23/2005
6929575Pulley
A pulley comprises a disk and an insert. The insert is fitted into the center of the disk integrally. Linear expansion coefficient of the disk is larger than the same of the insert. A concavity is formed on a periphery surface of the insert so that both side surface...
08/16/2005
6910980Cushion ring sprocket assembly and method
A method for installing a cushion ring on a sprocket body to construct a sprocket assembly includes applying a deforming force to a cushion ring so that an opening therein is deformed to a shape that accommodate passage of a non-circular flange of a sprocket body th...
06/28/2005
6899651Reduced sound transmitting sprocket
A drive sprocket assembly includes a hub having an endless chain connected thereto. A plurality of driver members are mounted between the hub and the endless chain to provide sound suppression. ...
05/31/2005
6866922Power transmission belt
A power transmission belt having a body with a length, a width, an inside, and an outside. The body includes a rubber composition. The body further has a plurality of short fibers in the rubber composition. The plurality of short fibers may include a plurality of po...
03/15/2005
6857976Rotation force transmitter and transmission mechanism
A rotation force transmitter and a rotation force transmission mechanism are provided, which are light-weight and suppresses vibrations in the perimeter and radial directions. A junction flywheel, which is a rotation force transmitter, includes a pulley portion, a h...
02/22/2005
6762417System in which a rotating body is connected to a rotary shaft in an ion implanter
A rotary shaft and a rotating body are connected in such a way as to stably control the tilt of a wafer platen in an ion implanter. The rotary shaft has a key way and the rotating body has a boss into which the rotary shaft extends. A key integrates the rotary shaft...
07/13/2004
6656072Chain transmission assembly
Projections colliding with constricted portions at the center of hourglass-shaped pin link plates and with constricted portions at the center of hourglass-shaped roller link plates are provided at an annular resilient body. When a roller chain starts to m...
12/02/2003
6540630Reduced sound transmitting sprocket for track-type machines
A sprocket for supporting and propelling an endless track assembly of a track-type machine. The sprocket has an endless chain which is resiliently mounted to an outer flange of a hub. The chain has outwardly projecting teeth that interact with the endless...
04/01/2003
6468173Sprocket assembly for silent timing chain system
A sprocket assembly for an automotive timing chain system includes a main sprocket, an auxiliary sprocket mounted onto one side of the main sprocket for assisting the main sprocket, and an elastic member elastically coupling the auxiliary sprocket to the ...
10/22/2002
6440022Double-meshing type silent chain and sprocket for meshing with the chain along outer circumference thereof
A double-meshing-type silent chain includes link plates having the identical side profile. Each link plate has two meshing teeth and a flat back face formed opposite to the meshing teeth. Two kinds of links are alternately arranged in the longitudinal dir...
08/27/2002
6383104Parts carrier with intergral rollers
A device used to transfer and support articles during a high temperature heat treatment. The device is used to move articles into a heat treat furnace, hold the articles at an elevated temperature in a controlled atmosphere during the high temperature tre...
05/07/2002
6371875Random engagement roller chain sprocket with cushion rings and root relief for improved noise characteristics
A roller chain sprocket includes a number of sprocket teeth each having an engaging flank and a disengaging flank. An engaging flank of a first tooth of the sprocket cooperates with a disengaging flank of a second tooth to define a tooth space having a ro...
04/16/2002
6371874Sprocket equipped with cushion body
A sprocket has a central through-hole for attachment of the sprocket to a rotating shaft, a boss coaxial with the through-hole, and teeth on the periphery of the sprocket. The boss has a cylindrical outer surface coaxial with the through-hole and having s...
04/16/2002
6364798Sprocket for roller chain drives
A roller chain and sprocket drive includes a roller chain having multiple rollers and articulated links, the rollers being arranged with a substantially constant pitch and connected by the articulated links, and a sprocket in driving or driven engagement ...
04/02/2002
6336882Chain wheel with damping
A chainwheel (1) of a control mechanism of an internal combustion engine, said chainwheel being formed in one part or a plurality of parts from at least one hub (1a), a toothed rim (1c) and a wall (1a) connecting the hub (1a) to the toothed rim (1c), prov...
01/08/2002
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