Ballast system for maintaining constant pressure in a glove box

Details Ballast system for maintaining constant pressure in a glove box Ballast system for maintaining constant pressure in a glove box

1989-09-29

1990-05-08

Joyce, Harold

981153, B64D 1300

Patent

active

049228072

ABSTRACT:
A ballast system for a glove box including a fixed platform on which is mounted an inflatable bag on top of which resides a cover and a weight. The variable gas volume of the inflatable bag communicates with that of the glove box via a valved tube. The weight and gas volume are selected to maintain a relatively constant pressure in the glove box despite variations in the glove box volume while avoiding the use of complicated valving apparatus.

REFERENCES:
patent: 1642577 (1927-09-01), Carson
patent: 2741410 (1956-04-01), La Violette
patent: 2786740 (1957-03-01), Taylor
patent: 3907389 (1975-09-01), Cox
patent: 4026286 (1977-05-01), Trexler
patent: 4111753 (1978-09-01), Folsom
patent: 4304224 (1981-12-01), Fortney
patent: 4704951 (1987-11-01), Pruchon

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