Pumps – One fluid pumped by contact or entrainment with another – Jet
Patent
1981-04-07
1984-02-21
Look, Edward K.
Pumps
One fluid pumped by contact or entrainment with another
Jet
294 64A, F04F 548
Patent
active
044327013
ABSTRACT:
The present invention relates to a vacuum controlling device wherein a vacuum can be obtained by jetting compressed air, a predetermined vacuum state can be automatically confirmed and further the vacuum state can be quickly released by switching compressed air.
REFERENCES:
patent: 1441651 (1923-01-01), Anderson
patent: 2124620 (1938-07-01), Kirgan
patent: 2874989 (1959-02-01), Reynolds
patent: 3285181 (1966-11-01), Howard
patent: 3612722 (1971-12-01), Neward
patent: 3716307 (1973-02-01), Hansen
patent: 3967849 (1976-07-01), Cagle
patent: 4290446 (1981-09-01), Seiler
patent: 4309149 (1982-01-01), McCombs
Look Edward K.
Obee Jane E.
Schaffer Murray
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