Dispensing – With discharge assistant – Fluid pressure
Patent
1998-02-19
2000-06-27
Derakshani, Philippe
Dispensing
With discharge assistant
Fluid pressure
2224641, 137212, 285921, B65D 8300
Patent
active
060795972
ABSTRACT:
A blow molded drum has a port including a neck with exterior buttress threads and a port opening having a sleeve fusion bonded in the neck. The sleeve having a inner cylindrical sealing surface, and a shoulder. A drop-in down tube assembly seats with the shoulder and has an upwardly extending nipple. Either a dispense head or a closure radially seals within the sleeve and is secured by a retainer with interior buttress threads engaging with the exterior threads on the port neck. The dispense head has a first flow duct extending to a nipple engaging portion to seal with the upwardly extending nipple and a second flow duct leading to an annular space around the nipple for a return fluid line or for providing air or a gas for displacing withdrawn fluid. The closure is preferably comprised of a cylindrically shaped interior liner portion for engaging and sealing with the cylindrical sealing surface of the sleeve, such as by an o-ring, and has a pathway which includes the spiral gap between the cooperating buttress threads on the neck and on the retainer. A microporous membrane may be placed in the pathway to allow venting of gases but preclude leakage of the liquid in the drum.
REFERENCES:
patent: 3720355 (1973-03-01), Johnston
patent: 3743145 (1973-07-01), Johnston
patent: 3776260 (1973-12-01), Ruddick
patent: 3868049 (1975-02-01), Johnston
patent: 3891118 (1975-06-01), Laurizio
patent: 4093124 (1978-06-01), Morane et al.
patent: 4114779 (1978-09-01), Stoll, III
patent: 4212414 (1980-07-01), Beyens
patent: 4231489 (1980-11-01), Malone
patent: 4625889 (1986-12-01), Baughman
patent: 4699298 (1987-10-01), Grant et al.
patent: 4972568 (1990-11-01), Schurr
patent: 5102010 (1992-04-01), Osgar et al.
patent: 5108015 (1992-04-01), Rauworth et al.
patent: 5118015 (1992-06-01), Scholle et al.
patent: 5199613 (1993-04-01), Magrath et al.
patent: 5204499 (1993-04-01), Favalora
patent: 5335821 (1994-08-01), Osgar
patent: 5413240 (1995-05-01), Hunter et al.
patent: 5511692 (1996-04-01), Willingham
patent: 5526956 (1996-06-01), Osgar
patent: 5636769 (1997-06-01), Willingham
patent: 5667253 (1997-09-01), Jansen et al.
Hennan John M.
Rauworth Barry L.
Christensen Douglas J.
Derakshani Philippe
Fluoroware, Inc.
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