Spring for windshield wiper arm
US5320333A · kind A · utility
10Cited by
11References
4Claims
0Family size
Inventor
Key dates
| Filing date | Mar 1, 1993 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Mar 1, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S1/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The spring has an intermediate helical portion with a U-shaped open hook at each end. The helical portion is disposed in the region of the pivot of the wiper support arm to the base part which holds the support arm. One hook wraps around the wiper support arm, passing over and hooking underneath the same and the other hook wraps around the base part, passing underneath and hooking on the top of said base part. The spring greatly increases the wiper pressure on the windshield. The spring remains properly hooked even when the support arm is pivoted away from the windshield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.