Baths – closets – sinks – and spittoons – Strainer – stopper – plug or closure – Combined strainer – plug – or valve
Patent
1982-03-31
1983-04-26
Artis, Henry K.
Baths, closets, sinks, and spittoons
Strainer, stopper, plug or closure
Combined strainer, plug, or valve
4286, 4292, 4295, A47K 114, E03C 126
Patent
active
043808344
ABSTRACT:
A pop-up plunger for selectively closing a generally cylindrical waste drain pipe having a seat at one end and a closure actuator remote from the seat, the plunger comprises a head portion including sealing means for engaging the seat for closing the waste drain pipe. The plunger also includes a support portion which extends from the head portion into the waste drain pipe. The support portion engages the closure actuator for axial displacement of the plunger relative to the waste drain pipe for opening and closing the waste drain pipe and includes guide means projecting into close proximity to the waste drain pipe for guiding the axial displacement of the plunger. The guide means provides at least one drain passage past the plunger to afford communication from the seat to a drain through the waste drain pipe. A hollow cylindrical foramenous sleeve member is releasably mounted on the guide means to cover the drain passage and to fill the space between the guide means and the inner surface of the waste drain pipe adjacent to the seat. The openings of the sleeve member afford a flow of waste liquid therethrough but block the passage of discrete articles. The sleeve member is held captive between the head and shoulders on the support and may be removed by disengagement of the head from the support while it remains coupled to the closure actuator.
REFERENCES:
patent: 1203530 (1916-10-01), Gessler
patent: 1770639 (1930-07-01), West et al.
patent: 2075443 (1937-03-01), Kirschner et al.
patent: 2190278 (1940-02-01), Weidoff
patent: 2481312 (1949-09-01), Kirschner
patent: 3018489 (1962-01-01), Saflarski
patent: 3665526 (1972-05-01), Hoffman
patent: 3972078 (1976-08-01), Maki
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