Brakes – Operators – Automatic
Patent
1990-10-15
1992-03-31
Oberleitner, Robert J.
Brakes
Operators
Automatic
16193, 49415, F16D 5160
Patent
active
050999630
ABSTRACT:
A brake is provided for sash windows. The brake comprises a frame having symmetrical and opposed arms, each arm comprising an outwardly facing brake pad area and inwardly, downwardly facing ramps. A wedge member is slidably received between the arms. The ramp and wedges cooperate to spread the arms as the wedge member is withdrawn from the frame.
REFERENCES:
patent: 4571887 (1986-02-01), Haltof
Alchin & Long Groutp Pty Ltd.
Oberleitner Robert J.
Schwartz Chris
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