Pneumatic sealing device for waste disposal systems

Details Pneumatic sealing device for waste disposal systems Pneumatic sealing device for waste disposal systems

1992-01-21

1993-09-28

Recla, Henry J.

Fluent material handling, with receiver or receiver coacting mea

Multiple passage filling means for diverse materials or flows

With gas expanded seal

141312, 141382, 417478, 137899, 4321, 4323, 285 97, E03D 100

Patent

active

052479749

ABSTRACT:
A temporary sealing device for sealing a waste discharge conduit from an RV to an inlet receptacle of a waste receiving reservoir. The sealing device includes an inflatable bladder which is mounted so as to be positionable between the discharge conduit and the receptacle. A pump inflates the bladder to a size which seals the opening between the receptacle and the conduit to inhibit removal of the conduit and prevent the discharge of waste therearound. The sealing device is also provided with a valve which allows the bladder to be deflated after the transfer of waste and permits the conduit to be withdrawn from the receptacle.

REFERENCES:
patent: 28758 (1860-06-01), Lapham
patent: 672475 (1901-04-01), Cavallaro
patent: 1510212 (1924-09-01), Du Bois
patent: 2178494 (1939-10-01), Richardson
patent: 2960040 (1960-11-01), Bischoff
patent: 4469152 (1984-09-01), Hardee et al.
patent: 4484626 (1984-11-01), Kerfoot et al.
patent: 4796926 (1989-01-01), Rapsilver
patent: 4909288 (1990-03-01), Sommer et al.
patent: 5023959 (1991-06-01), Mercer

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