Distortion free 3 point vacuum fixture

Details Distortion free 3 point vacuum fixture Distortion free 3 point vacuum fixture

1980-11-28

1982-11-02

Yost, Frank T.

Work holders

With fluid means

Vacuum-type holding means

51235, 83451, 269296, 279 3, 408 76, B25B 1100

Patent

active

043570062

ABSTRACT:
This is a vacuum clamp for holding workpieces which assures that the workpiece is held without distortion. This is accomplished by providing a fixed support, with a convex surface, and a flexible seal around the fixed support so that when a vacuum is drawn within the seal the workpiece being held abuts the fixed support tangentially. The convex surface of the support does not force the workpiece to conform to the surface of the support as it would if the surface of the support were flat.

REFERENCES:
patent: 799922 (1905-09-01), Moxham
patent: 2529331 (1950-11-01), Ellis et al.
patent: 2701723 (1955-02-01), Ekberg
patent: 2729040 (1956-01-01), Wallace et al.
patent: 2730370 (1956-01-01), Brewster
patent: 2782574 (1957-02-01), Copold
patent: 3084928 (1963-04-01), Opitz
patent: 3116919 (1964-01-01), Alth
patent: 3484093 (1969-12-01), Mermelstein
patent: 4088312 (1978-05-01), Frosch et al.

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