Piping valve with a housing for the transfer of a wiper insertab

Details Piping valve with a housing for the transfer of a wiper insertab Piping valve with a housing for the transfer of a wiper insertab

1980-07-01

1983-02-15

Roberts, Edward L.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

B08B 904

Patent

active

043732259

ABSTRACT:
A piping valve for conduits conveying pressurized viscous material, such as concrete, provides a means for introducing a wiper into the conduit for cleaning purposes. The piping valve has a reciprocally displaceable part with a transmission pipe and a pipe chamber containing the wiper. The reciprocally displaceable part may be moved between a first position in which it is aligned with the conduit and a second position in which it receives the wiper for passage through the conduit.

REFERENCES:
patent: 2087679 (1937-07-01), Bail et al.
patent: 2713909 (1955-07-01), Baker
patent: 3000028 (1961-09-01), Buie et al.
patent: 3063079 (1962-11-01), Bergman et al.
patent: 3146477 (1964-09-01), Bergman et al.

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