Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Patent
1979-06-08
1982-09-28
Roberts, Edward L.
Brushing, scrubbing, and general cleaning
Implements
Pipe, tube, or conduit cleaner
251298, B08B 904
Patent
active
043510795
ABSTRACT:
A valve which may be interposed in a pipeline system in such a manner for injecting or launching of spheres into the interior of the pipeline individually and in sequence, and which may be alternatively interposed in the system for receiving previously injected spheres from the interior of the pipeline. The valve comprises a launch mechanism actuated by gravity and which has a single moving part, and in the receiving operation a blocking bar is provided for precluding incoming spheres from inadvertently or accidentally lodging within the valve body.
REFERENCES:
patent: 1636461 (1927-07-01), Colburn
patent: 3166094 (1965-01-01), Eagleton
patent: 3169263 (1965-02-01), Eagleton
patent: 3266077 (1966-08-01), Elliott et al.
patent: 3521659 (1970-07-01), Seger
patent: 3809113 (1974-05-01), Grove et al.
Fitzpatrick Associates, Inc.
Roberts Edward L.
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