Supports – Brackets – Adjustable
Patent
1982-10-25
1986-02-04
Britts, Ramon S.
Supports
Brackets
Adjustable
248447, E04G 300
Patent
active
045680523
ABSTRACT:
Each arm of a first pair of arms is pivotally connected at spaced-apart pivot locations to a first clamp bracket and to an adjustment bracket, respectively, and each arm of a second pair of arms is pivotally connected at spaced-apart locations to a second clamp bracket and to the adjustment bracket, respectively. A first control is engageable with an arm of the first pair for selectively enabling and preventing pivoting movement thereof, and a second control is engageable with an arm of the second pair for selectively enabling and preventing pivoting movement thereof. When the first and second controls both enable the respective pivoting movements, the second clamp bracket can be moved to a desired position, and, when the first and second controls both prevent the respective pivoting movement, the second clamp bracket retains its position.
REFERENCES:
patent: 436717 (1890-09-01), Moore
patent: 967877 (1910-08-01), Bauer
patent: 1282489 (1918-10-01), Strodel
patent: 2667317 (1954-01-01), Trebules
patent: 3638889 (1972-02-01), Samuelson
patent: 4003536 (1977-01-01), Sekerich
patent: 4165530 (1979-08-01), Sowden
patent: 4447031 (1984-05-01), Souder
Eckert William G.
Hawes Robert E.
Herbst Manfred O.
Solomon Jack
Britts Ramon S.
Esselte Pendaflex Corporation
Purol David M.
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