Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1979-08-02
1981-08-04
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
B08B 904
Patent
active
042814324
ABSTRACT:
A fluid propelled tube cleaning projectile in which the rearward head or terminal section has an outward and rearwardly extending rubber skirt, preferably formed as a cup-shaped rubber annulus which is inserted between two rigid perforated discs on a rearward axial extension of the body section of the projectile.
REFERENCES:
patent: 1325348 (1919-12-01), Bowman
patent: 1392105 (1921-09-01), Bergesen, Sr.
patent: 2170997 (1939-08-01), Griffin
patent: 2399544 (1946-04-01), Danner
patent: 2636202 (1953-04-01), Hinzman
patent: 2734208 (1956-02-01), Griffin
patent: 3496588 (1970-02-01), Vernooy
Condenser Cleaners Mfg. Co., Inc.
Roberts Edward L.
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