Lock chock for tandem axle wheels
US4828076A · kind A · utility
21Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 1988 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Feb 1, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T3/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A locking chock which is of the character of a ground brake for the fore and aft wheels of a tandem axle vehicle makes use of a separate chock or blocker for each wheel. Each chock has a flat, ground-engaging face and an oblique wheel-engaging face. There is an initially retacted threaded shaft extending between the chocks which, once the chocks are in proper position, is extended to push the chocks into blocking engagement against the corresponding opposite wheels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.