Drain plunger

Details Drain plunger Drain plunger

1985-11-12

1986-11-18

Marcus, Stephen

Baths, closets, sinks, and spittoons

Obstruction remover

Connected to a source of external fluid under pressure

E03D 1100

Patent

active

046227024

ABSTRACT:
An improved plunger for clearing clogged bathroom drains and the like. The plunger has apertures through the wall of its resiliently collapsible cup and a diaphragm or other occlusion member on the inside surface of the cup for alternately opening and partially occluding the apertures in response to pressures and liquid flow. The invention allows repetitive application of downward hydraulic pressure on the clog without excessive reverse pressures during the intervening upward strokes, facilitates variation in the degree of hydraulic pressure applied, and provides several related advantages. In one preferred embodiment, the diaphragm is secured to a raised portion of the cup inside surface. In another, the degree of maximum occlusion is adjustable by turning the occlusion member. In yet another, the cup and diaphragm are integrally formed.

REFERENCES:
patent: 355806 (1887-01-01), Anson
patent: 674197 (1901-05-01), Cooper
patent: 2496525 (1950-02-01), Eggleston
patent: 2846698 (1958-08-01), Tomlinson
patent: 3130421 (1964-04-01), Quinlan
patent: 4445236 (1984-05-01), Nadolny et al.

Affiliated with

Also associated with

Rating

Drain 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 Drain plunger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drain plunger will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1610435