Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1988-01-27
1988-12-20
Feldman, Peter
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
B05
Patent
active
047916966
ABSTRACT:
A windscreen wiper system comprises a drive shaft (1), a windscreen wiper arm (2) mounted at one end (3) on the drive shaft (1) for reciprocal pivotal movement therewith and a windscreen wiper blade (9) articulated to the other end (4) of the arm (2). A link (6) extending substantially at right angles to the surface of the windscreen is pivotally connected to both the arm (2) and the blade (9) so as to provide an articulated connection therebetween and a control lever (12) is pivotally connected at one end to the link (6) between the pivots for the arm (2) and the blade (9). A cam surface (15) is associated with the drive shaft (1) and a cam follower (16) is provided for cooperation with the cam surface (15) and mounted on the other end (11) of the control lever (12). The arrangement is such that the cam follower (16) follows the cam surface (15 ) during pivotal movement of the arm (2) and varies the position of the control lever (12) with respect to the arm (2) to move the blade (9) generally longitudinally of the arm (2).
REFERENCES:
patent: 2834038 (1958-05-01), Kramer
patent: 2849742 (1958-09-01), Gores
patent: 3404423 (1968-10-01), Howard et al.
patent: 4512056 (1985-04-01), Wattier
patent: 4525891 (1985-07-01), Leroy et al.
Feldman Peter
Liss E. Herbert
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