Multiple windshield wiper blade assembly
US5802661A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1997 |
| Grant date | Sep 8, 1998 |
| Priority date | — |
| Expiry date | Oct 30, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S2001/3843
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A wiper blade assembly (10) is provided including a housing (12), two blades (14), (16), two blade support structures (18), (20), and a switching mechanism (22). The housing (12) includes a shell (26) having two longitudinal channels (28), (28'). The housing (12) further includes a lower opening (36) and a bottom plate (38) sized to cover the lower opening. The bottom plate (38) is releasably connected to the shell (26) and includes two slots (40). An inner seal (46) attaches to an interior surface of the bottom plate and includes slots (48) that align with the bottom plate slots (40). The blades (14), (16) and blade support structures (18), (20) are positioned within the housing channels and are aligned with the bottom plate slots. Each support structure includes a middle portion having a transverse central hole (54). The switching mechanism (22) includes a shaft (62) and first and second cams (70), (72) attached to the shaft. The first cam (70) is held within the transverse hole of the first support structure (18) and the second cam (72) is held within the transverse hole of the second support structure (20). During use, the switching mechanism (22) causes at least one blade to e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.