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William S. Dworzan Patents
Inventor:
Dworzan; William S.
Address:
Santa Ana, CA
No. of patents:
4
Patents:




Patent Number Title Of Patent Date Issued
7409741 Toothbrush with tuned vibrating head August 12, 2008
A toothbrush provides a head with bristles, a neck and a handle. An eccentrically rotational weight is engaged for rotation with a motor, the weight disposed within the head. The motor is disposed within the handle. The head and neck are integrally formed with a natural resonance fre
7326156 Handheld gyroscopic exercise device February 5, 2008
A gyroscopic exercise device has a pair of handles attached to a housing. A user holds and rotates the handles along a cone-like path causing precession of a rotor, which is rotating about its spin axis, to provide resistance to the user. The device has a ring guide that holds ends of a
6775940 Motion detecting safety device August 17, 2004
A safety device for use with a toy guns, less-lethal guns (such as non-powdered guns) and lethal guns detects motion of the gun, and causes light emitting diodes or other light sources incorporated into the gun to prominently flash. The flashing light sources alert bystanders in a way
5222327 Side mount garage door operator June 29, 1993
A side mount garage door operator capable of being positioned on either the ceiling or end wall of a garage at either side of the garage door on a frame unit, the operator providing a clutch for disengaging the drive motor from the garage door in the absence of electric power and having


 
 
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