Constant force spring expandable clasp-holder

Details Constant force spring expandable clasp-holder Constant force spring expandable clasp-holder

1976-09-17

1979-01-23

Frazier, Roy D.

Supports: racks

Special article

Book support type

A47F 700

Patent

active

041356268

ABSTRACT:
The specification discloses a holding device which applies a constant force to the objects held regardless of their size or number. All embodiments utilize a constant force spring which is coiled at opposite ends.

REFERENCES:
patent: 1395825 (1921-11-01), Hoffman
patent: 2076941 (1937-04-01), Farr
patent: 2284849 (1942-06-01), Schreyer
patent: 2647743 (1953-08-01), Cook
patent: 2670198 (1954-02-01), Glaser et al.
patent: 2738881 (1956-03-01), Michel
patent: 3182806 (1965-05-01), Lambert
patent: 3324560 (1967-06-01), Snyder
patent: 3399782 (1968-09-01), Bascom
patent: 3531060 (1970-09-01), Foster

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