Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1985-09-09
1991-02-12
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
1525023, B60S 126
Patent
active
049912526
ABSTRACT:
A variable length windshield wiper arm assembly for disposition below the center of a vehicle windshield includes a base supported on the body for angular oscillation about a pivot axis of the body through a wiping stroke, a blade support arm carrying a wiper blade for wiping the window, an outboard slide bearing between the support arm and the base for partially guiding the arm relative to the base and for reacting blade torque, a hypocycloidal gear system on the base having a rotary input member rotatable about the pivot axis and a linear output member connected to an inboard end of the support arm whereby the support arm is guided and linearly reciprocated relative to the base, and a drive system on the body including a planetary gear set driven by the base and a transmission shaft between the planetary set and the rotary input of the hypocycloidal gear system. The gear ratios of the planetary set are selected to rotate the transmission shaft at a rate of about 720.degree. for each angular stroke of the base through the wiping arc.
REFERENCES:
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patent: 1660971 (1928-02-01), Lindner
patent: 2629891 (1953-03-01), Greene
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patent: 4630327 (1986-12-01), Schmidt et al.
Product Engineering, Jun. 21, 1965, p. 84.
"Ingenious Mechanisms", Machinery Magazine, p. 120, Jul. 1963.
General Motors Corporation
Graham Gary K.
Hornsby Harvey C.
Schwartz Saul
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