Automatic tire pressurizing system
US4651792A · kind A · utility
62Cited by
2References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1984 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Jul 2, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tire pressurizing system is provided for automatically pressurizing a pneumatic tire. The system employs centrifugal force to actuate a pump which is attached to the interior of the tire. Centrifugal force causes a pump actuating member to follow a different orbital path around a rotating tire from the path of the pump housing, which is attached to the tire. The difference is due to the flexing of the tire in the load bearing "footprint" area. The result is reciprocation of the actuating member, which in turn operates a pump. Piston and diaphragm pump embodiments are disclosed. An automatic pressure regulator is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.