Aircraft lavatory drain plug

Details Aircraft lavatory drain plug Aircraft lavatory drain plug

1977-02-07

1978-07-18

Artis, Henry K.

Baths, closets, sinks, and spittoons

Strainer, stopper, plug or closure

Plugs

4286, 138 89, 138 96R, A47K 114

Patent

active

041006291

ABSTRACT:
A drain plug for axial insertion into a conduit having an inner surface, including a cup-shaped resilient sealing member having a closed end and an open end and having a sidewall having an outer surface conforming to the inner surface of the conduit and with the cup-shaped member normally axially slideable into the conduit, first means intercoupling the closed and open ends of the cup-shaped member for axially compressing the cup-shaped member to flex the sidewall radially outward to engage and seal against the inner surface of the conduit, and second means coupled to the first means for moving between first and second positions for actuating the first means to compress the cup-shaped member with the second means moved from the first to the second position.

REFERENCES:
patent: 2924246 (1960-02-01), Markel
patent: 3130571 (1964-04-01), Neumann
patent: 3157203 (1964-11-01), Ver Nooy
patent: 3428295 (1969-02-01), Downey et al.
patent: 3550636 (1970-12-01), Hearne et al.
patent: 3747541 (1973-07-01), Reese
patent: 3749131 (1973-07-01), Burger

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