High vacuum fastener

Details High vacuum fastener High vacuum fastener

1976-06-16

1977-11-15

Britts, Ramon S.

Supports

Props and braces

Vacuum hold-down

248206R, 269 21, 294 64R, A45D 4214, B25B 1100

Patent

active

040582817

ABSTRACT:
A vacuum device for securement against a flat or shaped surface and capable of maintaining a vacuum against the surface by the use of an external vacuum source consisting of a block having a first smooth surface for contact against the flat surface, wherein the smooth surface of the block has a closed peripheral groove. A sealing means is disposed in the closed peripheral groove defining a vacuum retaining area with the flat or shaped surface. A valve means is disposed in the block and has an inlet accessible on a second block surface and communicative to the vacuum retaining area so that when the air is removed from the retaining area, the external air pressure will force the block against the flat surface. In another embodiment, a further vacuum retaining area is formed with an additional seal which is operative with the same valve, or an independent valve.

REFERENCES:
patent: 2916059 (1959-12-01), Wong
patent: 3158381 (1964-11-01), Yamamura
patent: 3907268 (1975-09-01), Hale
IBM Technical Disclosure Bulletin, "Vacuum Chuck," W. Von Kaenel, vol. 6, No. 7, p. 61, Dec. 1963.

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