Concealed releasable frame structure

Details Concealed releasable frame structure Concealed releasable frame structure

1978-08-03

1981-02-10

Kundrat, Andrew V.

Joints and connections

With opening for access to connector or operator

To threaded component

403246, 403297, F16B 718

Patent

active

042498309

ABSTRACT:
Tubular frame structures such as for furniture, cabinets, display stands or the like comprise square tubular metal elements held together by a series of right angle connector structures. The improved connector comprises a channel having one end fixedly attached to a first frame element. A second frame element telescopes over the channel. A jack screw, accessible through a hole in the second frame element, engages a bowed toggle spring to force the sides of the channel apart. Engagement is established at two corners at the ends of one side of the frame while the reaction is sustained by the base of the channel.

REFERENCES:
patent: 2850304 (1958-09-01), Wagner
patent: 3051517 (1962-08-01), Yalen
patent: 3484830 (1969-12-01), Wagner et al.
patent: 3514135 (1970-05-01), Cooper
patent: 3547475 (1970-12-01), Gingher
patent: 3797948 (1974-03-01), Weininger
patent: 3884588 (1975-05-01), Apple, Sr.
patent: 3977800 (1976-08-01), Cassel

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