Geometrical instruments
Patent
1975-10-17
1977-03-15
Lake, Roy
Geometrical instruments
324158F, 339255P, 339261, H01R 1362
Patent
active
040120970
ABSTRACT:
A body is provided including opposite ends, opposite sides and a top and a bottom. A pair of upstanding levers are pivotally secured, intermediate their upper and lower end portions, to opposite end portions of the body for limited oscillation about axes transverse to the levers and the body. Spring structure is provided for yieldingly biasing the upper ends of the levers apart and the body includes opposite side rows of elongated longitudinally spaced relatively insulated contacts projecting endwise outwardly and downwardly from opposite side portions of the bottom of the body. The lower ends of the levers include coacting opposite side depending conductive hooks opening longitudinally of the body toward the remote levers and corresponding side hooks of the levers are spaced apart in planes spaced slightly inwardly of the corresponding side contacts. The contacts comprise spring contacts and the depending lower end portions thereof may be at least slightly biased outwardly of the corresponding sides of the body, the inner portions of the lower ends of the contacts being beveled and the contacts projecting at least slightly below the corresponding hooks.
REFERENCES:
patent: 2261761 (1941-11-01), Hanson et al.
patent: 2472177 (1949-06-01), Taber
patent: 3506949 (1970-04-01), Venaleck et al.
patent: 3850490 (1974-11-01), Zehr
patent: 3914007 (1975-10-01), Seidler
Ross, T., Test Socket, in IBM Technical Disclosure Bulletin, vol. 10, No. 5, pp. 549-550, Oct. 1967.
Long Walter J.
Wohlhieter George M.
Wysocki Lawrence E.
Everett/Charles Inc.
Goldberg Howard N.
Lake Roy
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