Baths – closets – sinks – and spittoons – Obstruction remover – Piston
Patent
1997-10-21
1999-08-24
Phillips, Charles E.
Baths, closets, sinks, and spittoons
Obstruction remover
Piston
E03D 900
Patent
active
059408979
ABSTRACT:
A plunger having a handle, an upper cylinder, a lower cylinder, and a nozzle. The bottom portion of the upper cylinder fits over the top portion of the lower cylinder. The handle may be grasped to push the upper cylinder down over the lower cylinder to force compressed air out through the nozzle, or to pull the upper cylinder up to create a vacuum to suck air and/or fluids up. Either compression or vacuum, or both, may be used to unclog drains in sinks, toilets, or other household plumbing fixtures. A disc shaped piston compresses the air inside the lower cylinder when the upper cylinder to which the piston is attached moves down, and creates a partial vacuum when it moves up. The piston is attached by a rod to the handle and the upper cylinder. A spring in the space between the upper and lower cylinders biases the upper cylinder towards a set position with respect to the lower cylinder, and resists movement either upward or downward from the set position. Through the center of the nozzle is an aperture, through which air and fluids may move. The sides of the aperture are formed by an inner ring, which is surrounded by a circular cavity that separates the inner ring from an outer ring. A storage case has an outwardly sloping frustoconical side wall, and a flat circular bottom wall, and covers only the nozzle and the bottom end of the lower cylinder.
REFERENCES:
patent: D292631 (1987-11-01), Tash
patent: D364251 (1995-11-01), Novak
patent: 1684880 (1928-09-01), Norton
patent: 1706315 (1929-03-01), Norton
patent: 3934280 (1976-01-01), Tancredi
patent: 4096597 (1978-06-01), Duse
patent: 4186451 (1980-02-01), Ruo
patent: 5199114 (1993-04-01), Christopher
patent: 5522094 (1996-06-01), Balazs
Litman Richard C.
Phillips Charles E.
LandOfFree
Plunger does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plunger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plunger will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-455626