Vapor trapping and controlling container

Details Vapor trapping and controlling container Vapor trapping and controlling container

2006-03-14

2006-03-14

Maust, Timothy L. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

With manipulation of flexible or collapsible receiver or supply

C141S044000, C141S052000, C141S286000, C141S313000

Reexamination Certificate

active

07011119

ABSTRACT:
An underground tank releases vapors depending upon air pressure. As pressure increases, vapors decline. When pressure decreases, vapors increase and escape the tank or spill to pollute the atmosphere. A container for trapping vapors has a housing upon a base. Within the housing one or more bags hang upon stems connected to piping at fittings. The stems have perforations to admit vapors into the bags. The stems are connected serially to the piping upon the base. As vapors enter the piping, the bags inflate within the housing. When tank or spill pressure declines, the vapors exit the bags and return to the tank or spill via the piping.

REFERENCES:
patent: 3763901 (1973-10-01), Viland
patent: 3807396 (1974-04-01), Fischel
patent: 3978694 (1976-09-01), Hughes et al.
patent: 4108160 (1978-08-01), Harper
patent: 4131141 (1978-12-01), Weissenbach
patent: 5058631 (1991-10-01), Grant
patent: 5176187 (1993-01-01), Grant
patent: 5343908 (1994-09-01), Furstenberg
patent: 5655579 (1997-08-01), Prescott et al.
patent: 6070365 (2000-06-01), Leonard
patent: 6553713 (2003-04-01), Chiu
patent: 6805173 (2004-10-01), Healy

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