High volume dispense head with seal verification and low...

Details High volume dispense head with seal verification and low... High volume dispense head with seal verification and low...

2005-10-18

2005-10-18

Rivell, John (Department: 3753)

Fluid handling

Systems

System with plural openings, one a gas vent or access opening

C137S563000, C222S424000, C222S559000, C251S149600

Reexamination Certificate

active

06955185

ABSTRACT:
A fluid dispensing system for use with a drum with a bung, and a drum insert that includes a downtube that inserts into the bung. A dispense head has provision for a return flow line that discharges recirculated fluid into the annular space around the drum insert downtube. A foaming reduction device minimizes foam created from the recirculation. The invention includes a spring-loaded poppet that closes when the dispense head is removed from the bung opening. The poppet is configured such that the engagement member is a ring shaped with support members extending axially. The engagement member seats on and couples with a nipple on the drum insert.The nipple has a seating portion to engage the engagement member of the poppet. The invention also includes a seal verification conduit in fluid communication with a space intermediate two seals at a junction between the dispense head and the drum insert.

REFERENCES:
patent: 4134522 (1979-01-01), Patzke et al.
patent: 4699298 (1987-10-01), Grant et al.
patent: 4832237 (1989-05-01), Hurford, Jr.
patent: 4929293 (1990-05-01), Osgar
patent: 4984717 (1991-01-01), Burton
patent: 5108015 (1992-04-01), Rauworth et al.
patent: 5121857 (1992-06-01), Hutchinson
patent: 5526956 (1996-06-01), Osgar
patent: 6045000 (2000-04-01), Rauworth et al.
International Search Report PCT/US02/22170.

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