Joints and connections – Rigid angle coupling – e.g. – elbow or u – etc.
Patent
1988-02-17
1989-05-02
Sikes, William L.
Joints and connections
Rigid angle coupling, e.g., elbow or u, etc.
403382, F16B 100
Patent
active
048263443
ABSTRACT:
An access panel employing an expanded metal panel having its peripheral edges seated in framing strips of U-shaped cross section is assembled by the use of a pair of opposed corner plates of a relatively soft, non-metallic material formed with recesses which enclosingly receive and orient the end portions of framing strips at each corner of the panel. Fastening members, such as rivets or nut and bolt units, fixedly clamp the opposed corner plates against the opposite sides of the panel-framing strip assembly.
REFERENCES:
patent: 138611 (1873-05-01), Callanan
patent: 933067 (1909-09-01), Ferry
patent: 1595648 (1926-08-01), Corley
patent: 1957362 (1934-05-01), Smith
patent: 2947391 (1960-08-01), Wayne
patent: 4290251 (1981-09-01), Graham
patent: 4477990 (1984-10-01), Buchanan
patent: 4502260 (1985-03-01), Machler
patent: 4702638 (1987-10-01), Zalesak
Harry Major Machine and Tool Co.
Holloway B. Randolph
Sikes William L.
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