Adjustable framing clamp

Details Adjustable framing clamp Adjustable framing clamp

1988-06-17

1990-06-12

Stone, Cary E.

Card, picture, or sign exhibiting

Display card

Having a curved display panel

A47G 106, G09F 112

Patent

active

049321463

ABSTRACT:
A stepped frame having at least a pair of substantially planar surfaces oriented one lower than the other has a device for clamping a removable panel to the lower surface. One end of a rigid, unitary member attaches to the upper surface of the frame, while the other end extends over the panel, which in turn rests against the lower surface of the frame. A threaded aperture in the extending end, and a correspondingly threaded clamping screw cooperate to exert pressure on the panel when the screw is positively threaded through the aperture, thereby clamping the panel to the frame.

REFERENCES:
patent: 509626 (1893-11-01), Patterson
patent: 796838 (1905-08-01), Fraser
patent: 908608 (1909-01-01), Pullen
patent: 1059764 (1913-04-01), Ringer
patent: 2489477 (1946-11-01), Brecher
patent: 2744346 (1956-05-01), Auerbach-Levy
patent: 3146502 (1962-09-01), Reiss et al.
patent: 3596392 (1971-08-01), Vani
patent: 3665629 (1972-05-01), Shore
patent: 3670439 (1972-06-01), Shimizu
patent: 3769730 (1973-11-01), Dole
patent: 4014119 (1977-03-01), Teufel
patent: 4204350 (1980-05-01), Brenner
patent: 4509278 (1985-04-01), Astolfi

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