Brushing – scrubbing – and general cleaning – Attachments – Optical-member-attachable cleaner
Patent
1979-05-21
1981-07-21
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Attachments
Optical-member-attachable cleaner
B60S 138
Patent
active
042790549
ABSTRACT:
A screen wiper blade with a replaceable rubber-blade comprises a deformable harness equipped with pairs of claws receiving the edges of a flexible vertebra on which a wiping blade rubber is mounted. The vertebra is constituted by an elongated thin metallic plate having a longitudinal slot over the major part of its length. The rubber blade is provided with a longitudinal bead turned towards the harness and separated from the body by a thin wall lodged in the said slot. Adjacent one of the extremities of the rubber blade and on the same side of the body as the bead is a nipple. The thin plate comprises at one extremity a cutaway portion forming a fork and the said nipple comprises in its lower part a groove facing the extremity of the blade rubber opposite to the said nipple, the said fork cooperating with the said groove. Thus the fitting of the blade rubber upon its thin plate is easier and the retention of the nipple is ensured by the cooperation of the fork with the groove in the nipple, which diminishes the risk of accidental falling apart.
REFERENCES:
patent: 2697241 (1954-12-01), Oishei
patent: 2925615 (1960-02-01), Krohm
patent: 3114926 (1963-12-01), Deibel
Roberts Edward L.
Societe d'Exploitation de Brevets J.B.
Wray James C.
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