Wiper blade assemblies

Details Wiper blade assemblies Wiper blade assemblies

1997-03-17

1998-10-13

Graham, Gary K.

Brushing, scrubbing, and general cleaning

Attachments

Optical-member-attachable cleaner

1525044, 1525041, 1525046, B60S 128, B60S 138

Patent

active

058193626

ABSTRACT:
The invention seeks to provide an improved wiper blade assembly, and in a broad aspect provides a windscreen wiper blade assembly comprising at least a primary yoke and a pair of secondary yokes articulated thereto, the primary yoke and/or the secondary yokes being provided with at least one wind-deflecting surface, oriented in relation to the direction of motion of the vehicle so that when said vehicle is moving to create air flow over the windscreen, air is deflected by said surface or surfaces to produce a force tending to urge the wiper blade assembly towards the windscreen of the vehicle. Two posts are provided which depend from an underside of the primary yoke to limit pivotal movement of the secondary yokes.

REFERENCES:
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patent: 3390417 (1968-07-01), Kohler et al.
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patent: 4137598 (1979-02-01), Sharp
patent: 4422207 (1983-12-01), Maiocco et al.
patent: 4852206 (1989-08-01), Fisher
patent: 5179761 (1993-01-01), Beuchele et al.
patent: 5435071 (1995-07-01), Ho
patent: 5546627 (1996-08-01), Chen
patent: 5647088 (1997-07-01), Bommer et al.
patent: 5666687 (1997-09-01), Charng

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