Vacuum breaking device for ejector pump

Details Vacuum breaking device for ejector pump Vacuum breaking device for ejector pump

1988-05-26

1989-09-12

Croyle, Carlton R.

Pumps

One fluid pumped by contact or entrainment with another

Jet

417182, F04F 548

Patent

active

048655210

ABSTRACT:
A vacuum breaking device for an ejector pump is provided. The vacuum breaking device according to the present invention features that it is provided with a movable sealing valve for blocking the outlet port of the ejector hole of the pump when a vacuum generated in a system within the pump is be broken. The valve is arranged in opposite relationship with the ejector hole of the pump and shifts to block the outlet port due to the pressure of compressed air supplied to the air sucking chamber of the pump so that the leakage of the vacuum breaking compressed air from the ejector hole is prevented thereby increasing the efficiency of vacuum breaking operation. The vacuum breaking device is applicable to a vacuum sucking device for attracting and sucking an article so as to transfer it to a desired place.

REFERENCES:
patent: 3052479 (1962-09-01), Trell
patent: 3967849 (1976-07-01), Cagle
patent: 4261332 (1981-04-01), Stewart
patent: 4290446 (1981-09-01), Seiler
patent: 4380418 (1983-04-01), Crawford et al.
patent: 4402651 (1983-09-01), Ise
patent: 4549854 (1985-10-01), Yamamoto
patent: 4600363 (1986-07-01), Ise et al.
patent: 4655692 (1987-04-01), Ise

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