Breakaway knuckle for arm of a car wash
US8141568B2 · kind B2 · utility
1Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2009 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jun 4, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S3/04
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A breakaway knuckle for an arm of a car wash is disclosed. The knuckle allows the arm of a car wash to receive an impact from a vehicle without breaking and return the arm to its original position automatically. The knuckle preferably comprises a joint having a series of inclined grooves and corresponding balls. The knuckle is spring loaded to actuate the return of the arm to an in-use position after an impact, and the balls roll into the grooves to hold the arm in place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.