Invention Grant
- Patent Title: Traction device for vehicle wheels
- Patent Title (中): 车轮牵引装置
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Application No.: US09284557Application Date: 1999-04-14
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Publication No.: US06386252B1Publication Date: 2002-05-14
- Inventor: John M. O'Brien
- Applicant: John M. O'Brien
- Main IPC: B60C1100
- IPC: B60C1100
Abstract:
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).
Information query
