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Class 74/443 - Sound deadening


Subclass of Class 74 - Machine element or mechanism
Definition: Gears including means for deadening sound in operation.
No. of patents: 97
Last issue date: 10/19/2010


1      
NumberTitleIssue Date
7814809Plastic gear
A plastic gear having a gear peripheral portion including a tooth portion is constituted by a plastic material, and a gear inner circumferential member with an annular shape or a disk shape is provided at the inner circumferential side of the gear peripheral portion...
10/19/2010
7743679Power transmission device and method of producing the same
A power transmission device that can have deformation in processing suppressed. A spiral gear as a rotation member includes a disk section extending radially outwards from a boss section. The disk section includes a through hole in slit form through laser processing...
06/29/2010
7475612Resin gear for electric power steering apparatus and electric power steering apparatus equipped with the same
A resin gear for an electric power steering apparatus is provided which offers excellent mechanical strength and durability, and in which damage of teeth, does not occur even when the gear is employed in an electric power steering apparatus equipped with a high-powe...
01/13/2009
7383750Double flank delash gear mechanism
A gear arrangement includes a first section having a first plurality of teeth and at least a portion of the first section is made of a compliant material. There is also a second section having a second plurality of teeth. The second section is made of a stiff materi...
06/10/2008
7377355Motor-driven power steering apparatus for a vehicle
In a motor-driven power steering apparatus for a vehicle in which a worm wheel of a worm gear type speed reduction mechanism is fixed to a pinion shaft of a rack and pinion mechanism, a direction of a torsion angle β of a helical pinion provided in the pinion shaft...
05/27/2008
7296491Injection molded resin gear, injection molded resin rotating body, and method for producing them
An injection molded resin gear 1 includes an outside rim 6, an inside hub 4, a web 7 extending in radial directions to connect the rim 6 to the hub 4, and circumferential ribs 8 which are formed on both sides 9...
11/20/2007
7263909Drive device
The present invention is electronically driven locking device for a locking element of a motor vehicle. The device has a motor, a gear wheel including a gear ring, a hub, and an elastic intermediate element, and a control disk. The motor is linked to the gear ring v...
09/04/2007
7258037Gear protected against overloading
The invention concerns a gear for precision devices comprising at least two mutually co-operating toothed wheels (10, 14). The teeth (12, 16) of the two wheels have the same thickness (e) and the teeth of one of them (10) are provided with a rad...
08/21/2007
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
7225699Gear drive mechanism with anti-rattle device
A gear drive mechanism with two rotary gears meshing with each other has a first friction rim surface rotationally coupled to one of the two gears and a second friction rim surface rotationally coupled to the other of the two gears. The friction rim surfaces are in ...
06/05/2007
7217106Electro-hydraulic power steering apparatus
An electro-hydraulic power steering apparatus includes: a motor having a rotational shaft and provided with a bearing for rotatably bearing the rotational shaft; a hydraulic pump disposed at one end of the rotational shaft of the motor and driven by the motor; a fir...
05/15/2007
7155995Injection molded resin gear, injection molded resin rotating body, and injection molded article
An injection molded resin gear 1 has a rim 6 having teeth 7 on its outer periphery, a hub 4 for receiving therein a shaft, and a web 6 connecting the rim 6 to the hub 4. The thickness (t1) of the bottom 15
01/02/2007
7137793Magnetically driven gear pump
A magnetically driven gear pump having a housing, a rotatable annular magnetic drive assembly magnetically coupled to but spaced from an annular driven magnet and rotor gear assembly with an annular canister disposed therebetween, and wherein when the annular magnet...
11/21/2006
7100464Splined connection
A splined connection comprises a shaft with longitudinal radially outwardly protruding ridges and intermediate grooves, a hub provided with correspondingly shaped ridges and intermediate grooves and is adapted to being fitted in engagement with the shaft ridges and ...
09/05/2006
7036393Gear made of resin, image-forming device, and rotation-transmitting means made of resin
A gear 1 made of a resin includes webs 5 (5a and 5b) formed so that the rigidity of the web is increased by a first circumferential rib 8, a second circumferential rib 10, first diametrical ribs 11 and s...
05/02/2006
7004046Gear made of resin, image forming device having the resin gear and rotary gearing device made of resin
A gear made of a resin including substantially annular toothed portion formed at a radially outer location, a shaft-supporting section formed at a radially inner location around a rotational center of the toothed portion, and a web connecting the shaft-supporting se...
02/28/2006
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
6938747Transmission with a rattle-free connection between the clutch basket and the driving disc
A transmission includes a clutch basket and a driving disc each having teeth and tooth spaces which correspond to one another. A plug-in intermeshing connection between the driving disc and the clutch basket is provided such that there is no torsional backlash and s...
09/06/2005
6932292Fishing reel
The invention is to offer a fishing reel having a power transmission mechanism enabling to remove backlash in a gear row with a simple structure. The fishing reel according to the invention has a power transmission mechanism for transmitting driving force so as to d...
08/23/2005
6915716Roller/damper assembly
A roller/damper is configured for use with an associated sliding object such as a drawer that is movable between a first position and a second position along a rail having a rack gear disposed thereon. The roller/damper includes a roller having an outside diameter t...
07/12/2005
6905004Parking gear for a motor vehicle
An engagement wheel is mounted so that it can rotate relative to the drive shaft of a drive train in a motor vehicle. To allow rotational driving, the engagement wheel is operatively connected with an element that cannot be rotated relative to the drive shaft by at ...
06/14/2005
6782773System for coupling a toothed starter ring to a support connected to the output shaft of an internal combustion engine
In a system for coupling a toothed starter ring to a support connected to the output shaft of an internal combustion engine, a complementary substantially cylindrical peripheral surface of the ring is fixed over at least a part of its extent to a substantially cylin...
08/31/2004
6755094Anti-noise gear
An anti-noise gear wheel against which at least one vibration damping mass made from a heat-resistant and oil-resistant material is coupled in order to de-tune its vibration behavior. In order to produce an anti-noise gear wheel which is simple to assemble and whose...
06/29/2004
6736022Vibration reduction gear structure of an image input and output device
A vibration reduction gear structure of an image input and output device includes a first gear supporting a second gear, and a vibration reduction portion made of vibration reduction material mounted on at least one of the first gear and the second gear. The other g...
05/18/2004
6622814Electric power steering device
In an electric power steering device, a driven gear of a deceleration gear mechanism for transmitting rotation of an electric actuator for generating auxiliary steering power has a gear body made of a synthetic resin material. At least the outer periphery...
09/23/2003
6616337Noise-reducing machine component
A machine component, which may be a race of an antifriction bearing, contains pockets, the borders of which is defined by side-by-side reflecting surfaces which have free boundaries and intersect at alternating peaks and valleys. Vibration or noise to whi...
09/09/2003
6565158Automotive road wheel and attaching structure of the same
An automotive road wheel is disclosed, comprising: a disk portion fixed to an axle portion of a vehicle by a fastener; and a vibration isolation mechanism provided in a place where the disk portion is fixed by the fastener. In addition, an attaching struc...
05/20/2003
6550868Damper plate for automobile wheel
A damper plate for an automobile wheel by which ride comfort and interior noise characteristics are improved without seriously deteriorating driving stability or unfastening nuts. The damper plate has a structure in which a metal plate and a buffer member...
04/22/2003
6523431Electric power steering assist mechanism
A gear isolator assembly includes a gearbox housing, a first gear having a first axis of rotation about a first shaft and the second gear having a second axis of rotation about a second shaft. The first and second gears are rotatably mounted in a gearbox ...
02/25/2003
6482119Low noise planetary isolator
A planet gear includes a toothed portion having an axial bore, a hub disposed within the axial bore such that a space is defined between the hub and the toothed portion, and an elastomeric isolator disposed in the space. A gear is quieter in operation thr...
11/19/2002
6449845Method of manufacturing a gear part
The invention relates to a method for the manufacture of a gear part with a transversely directed profile, particularly a timing belt pulley, wherein a substantially rotationally symmetrical workpiece is fixed in a flow-forming device and rotated and wher...
09/17/2002
6422655Tire inside noise absorber
A sound absorber for insertion into a pneumatic tire is composed of a support strip attached to the rim of the wheel on which the tire is mounted and a system or network of flexible fibers attached to the mounting strip and extending in the radial directi...
07/23/2002
6419068Park gear damper for an automatic transmission for an automotive vehicle
The invention comprises a park mechanism for an automatic transmission comprising a toothed wheel secured to the torque output shaft of the transmission and a park pawl mounted pivotally on a transmission housing. The pawl has a pawl tooth engageable with...
07/16/2002
6339967Vibration dampening hypoid gear structure
The invention concerns a hypoid gear structure which includes a hypoid ring gear disposed coaxially with a rotation axis and a hypoid pinion gear provided with a rotation axis of an electric motor and engaging with the hypoid ring gear. The hypoid gear in...
01/22/2002
6309026Method and arrangement for sound-suppression in wheels
A method and a device for sound suppression, in wheels, of natural frequency sound originating from an air cavity which is inside the wheel between the tire and the rim, which includes at least one resonator arranged inside the wheel. The resonator is des...
10/30/2001
6170349Vibration dampening hypoid gear structure
A hypoid gear structure which includes a hypoid ring gear disposed coaxially with a rotation axis, and a hypoid pinion gear provided with a rotation axis of an electric motor and engaging with the hypoid ring gear. The hypoid ring gear includes a first to...
01/09/2001
6021686Power transmission device for an internal-combustion engine
A power transmission device has a primary driven gear and a scissor gear arranged abreast in a superimposed manner concentrically with the primary driven gear so as to be shiftable from it. Both the gears have plural pairs of openings superimposable to ea...
02/08/2000
5979627Damper assembly
A damper assembly for use with a transmission structure having at least two spline tooth spaces. The damper assembly comprises a torque transmission plate having at least a first and second spline situated to engage the at least two splined tooth spaces a...
11/09/1999
5979260Anti-lash gear assembly
An engine includes a gear train to provide engine timing. There is a technique for minimizing the backlash and noise caused by the gear train. There is also an anti-backlash gear assembly useful to reduce backlash in the gear train. One gear assembly has ...
11/09/1999
5927149High-torque quiet gear
A high-torque quiet gear construction consists of an inner hub having a pality of circumferentially spaced arms extending radially outwardly therefrom, and an outer ring member having a plurality of circumferentially spaced teeth extending radially inwar...
07/27/1999
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