Resources Contact Us Home Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE     John M. O'Brien Patents Inventor: O'Brien; John M. Address: Tualatin, OR No. of patents: 6 Patents: Patent Number Title Of Patent Date Issued 6905564 Process for creating expandable tire chamber June 14, 2005 A process for producing a tire having an expandable chamber utilized for extending and retracting studs provided in the periphery of the tire. In one embodiment, a non-stick film is strategically positioned between the casing and the tread prior to curing the tread onto the casing. The 6386252 Traction device for vehicle wheels May 14, 2002 A traction device for vehicle wheels comprises an expandable and contractible member (10) mounted next to a wheel (70) or in between dual wheels (12, 14). In another embodiment the device comprises an air chamber (106, 134) formed in the tread of the tire (120). 6244666 Traction device for vehicle wheels June 12, 2001 A tire as provided with a circumferential portion for contacting a road surface. Edge segments thereof include studs and an inflatable chamber at the edge segment is inflated and deflated to extend and withdraw the edge segments for engagement and disengagement with the road surface. 6022082 Traction device for vehicle wheels February 8, 2000 A traction device for vehicle wheels has an expandable and contractible member mounted next to the vehicle wheel. The traction device has a tire with extending studs that is expandable by air pressure to increase the diameter of the tire. The tire is contracted by releasing the pressuriz 5788335 Traction device for vehicle wheels August 4, 1998 A traction device for vehicle wheels has an expandable and contractible member mounted next to the vehicle wheel. The traction device has a tire with extending studs that is expandable by air pressure to increase the diameter of the tire. The tire is contracted by releasing the pressuriz 5102265 Adjustable width split sleeve and method of forming ends thereto April 7, 1992 An adjustable width split sleeve adapted to be securely wrapped around an elongate member. The sleeve includes a pliable laminated sheet having a first end and a second end. Each end of the sheet is wrapped around a respective first rod. Each first rod is rotated about a second rod which       Recently Added Patents Electric depilator Page buffer circuit of flash memory device with dual page program function and program operation method thereof Code division multiple access communication Parameterized signal conditioning Fluid separator Connector position assurance apparatus Resistance variable memory device with sputtered metal-chalcogenide region and method of fabrication   Randomly Featured Patents Azodicarbonamide containing gas generating composition Design and fabrication process for a lens system optically coupled to an image-capture device Ground-moving equipment Integrated semiconductor circuit, in particular a semiconductor memory circuit, having at least one integrated electrical antifuse structure, and a method of producing the structure Reductase gene and use of the same Electronic apparatus for engaging a portable computer with an expansion unit Method for making a thin film inductive write head having a pedestal pole tip and an electroplated gap Wound dressing Method of and system for determining the lower limit of decoding resolution in an imaging-based bar code symbol reader Method for making an adjustable sign holder © 2006. PatentGenius. All Rights Reserved.