Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1995-04-26
1996-05-28
Graham, Gary K.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525044, 1525033, 403 76, 403113, B60S 104
Patent
active
055199135
ABSTRACT:
An improved windshield wiper blade assembly is disclosed. The improvement is comprised of the ability of the device to allow a controlled and virtually noise free rotation of the blade with respect to the long axis of the blade. The center of such rotation is not critical but it has been found to be most effective to allow the structure to pivot at the joint of the primary yoke and the secondary yoke of the wiper assembly. In doing so, the wiper blade is allowed to be pulled across the windshield surface and not pushed into the windshield thus increasing the wear life and wiping efficiency of the blade. A spring device is disclosed that causes this device to be center seeking to an angle of perpendicular to the surface of the windshield, thereby allowing rotation in a controlled manner. This provides movement in both directions of the reciprocating blade without excessive clearance holes that can cause a noisy operation, the result being a device that is more useful and less distractive to the operator of the vehicle utilizing the invention.
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Flanagan John R.
Graham Gary K.
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