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Class Information
Number: 181/209
Name: Acoustics > Sound-modifying means > Mechanical vibration attenuator > Relatively moving parts
Description: Subject matter wherein the device has at least two parts moving with respect to one another.


Patents under this class:

Patent Number Title Of Patent Date Issued
7458440 Vehicle exhaust system support structure Dec. 2, 2008
7424930 Vibratory energy dissipation and isolation with magnetically biased rolling members Sep. 16, 2008
7355776 Acoustic damping material for electro-optic materials Apr. 8, 2008
7325652 Bumper/muffler assembly Feb. 5, 2008
7296654 Tunable stacked plate vibration isolator Nov. 20, 2007
7273128 Vibration proofing heat shield plate Sep. 25, 2007
7249653 Acoustic attenuation materials Jul. 31, 2007
7240766 Sound dampening pad Jul. 10, 2007
7117972 Vibration isolation mount for garage door opener Oct. 10, 2006
7073624 Loudspeaker baffle isolation system Jul. 11, 2006
7032708 Flush mountable vibration reducing loudspeaker mounting assembly Apr. 25, 2006
6985593 Baffle vibration reducing Jan. 10, 2006
6849053 Shock wave source with a wave damping coil carrier Feb. 1, 2005
6845842 Vibration-proofing structure for hollow pipe for vehicle Jan. 25, 2005
6837859 Shock wave source with a coil carrier having a non-circular contour Jan. 4, 2005
6824591 Air filter for an internal combustion engine Nov. 30, 2004
6749397 Fluidal machine Jun. 15, 2004
6705427 Exhaust system support structure Mar. 16, 2004
6578662 Telescopic buffer device Jun. 17, 2003
6561312 Device for in particular acoustically uncoupled mounting May. 13, 2003
6478110 Vibration excited sound absorber Nov. 12, 2002
6345686 Drive assembly Feb. 12, 2002
6332509 Noise reducer for construction equipment Dec. 25, 2001
6319134 Aluminum drive shaft Nov. 20, 2001
6283437 Foot device Sep. 4, 2001
6173805 Variably tuned vibration absorber Jan. 16, 2001
6173806 Muffling wall Jan. 16, 2001
6129176 Sound attenuating motor end shield Oct. 10, 2000
6129177 Pivoting tuned vibration absorber and system utilizing same Oct. 10, 2000
5734133 Muffler for structure-borne noise of running wheels Mar. 31, 1998
5410927 Low noise punch tool May. 2, 1995
5210382 Belleville washer spring type pulsation damper, noise attenuator and accumulator May. 11, 1993
5193644 Pipeline vibration damper Mar. 16, 1993
5033579 Sound-and/or vibration-damping coating, element provided with said coating and process for applying the latter Jul. 23, 1991
4867284 Rotary disc for disc brake assembly Sep. 19, 1989
4806953 Acoustic isolation timing belt pulley for drafting plotters Feb. 21, 1989
4793020 Noise insulator for windshield wiper blade assembly Dec. 27, 1988
4724923 Vibration absorber with controllable resonance frequency Feb. 16, 1988
4523666 Brake rotor with vibration harmonic suppression, and method of manufacture Jun. 18, 1985
4439497 Ultrasonic sound absorber Mar. 27, 1984
4392681 Rotating body sympathetic vibration absorber Jul. 12, 1983
4364594 Railway wheel vibration damping device Dec. 21, 1982
4355578 Railway wheels and rails damping structures Oct. 26, 1982
4353586 Vibration damped railway wheel Oct. 12, 1982
4323145 Vibration damping method and means having non-contacting sound damping means Apr. 6, 1982
4000670 Method and apparatus for noise suppression Jan. 4, 1977



 
 
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