Dual diaphragm tank with telltale drain

Details Dual diaphragm tank with telltale drain Dual diaphragm tank with telltale drain

1990-10-25

1991-07-02

Bryant, III, James E.

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

138 26, F16L 5504

Patent

active

050278606

ABSTRACT:
A fluid storage and expulsion system comprising a tank 12 with an internal flexible diaphragm assembly of dual diaphragms 17,18 in back-to-back relationship, at least one of which is provided with a patterned surface having fine edges such that the diaphragms are in contact along said edges without mating contact of surface areas to thereby form fluid channels 27 which extend outwardly to the peripheral edges of the diaphragms. The interior wall of the tank at the juncture of tank sections 14,15 is formed with a circumferential annular recess comprising an outer annular recess portion which forms a fluid collection chamber 40 and an inner annular recess portion which accommodates the peripheral edge portions of the diaphragms and a sealing ring 38 in clamped sealing relation therebetween. The sealing ring is perforated with radially extending passages 39 which allow any fluid leaking or diffusing past a diaphragm to flow through the fluid channels 27 between the diaphragms to the fluid collection chamber. Ports 21,23, connectable to pressure fittings are provided in the tank sections for admission of fluids to opposite sides of the diaphragm assembly. A drain passage 42 through the tank wall to the fluid collection chamber permits detection, analysis and removal of fluids in the collection chamber.

REFERENCES:
patent: 356997 (1887-02-01), Gil
patent: 1809927 (1931-06-01), Emanueli
patent: 2273457 (1942-02-01), Zimmerman
patent: 2851059 (1958-09-01), Lucien
patent: 2875786 (1959-03-01), Shelly
patent: 4777982 (1988-10-01), Borowitz et al.
patent: 4784181 (1988-11-01), Hilverdink
patent: 4796676 (1989-01-01), Hendershot et al.
patent: 4826045 (1989-05-01), Price et al.

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