Discharge valve for concrete pumping apparatus

Details Discharge valve for concrete pumping apparatus Discharge valve for concrete pumping apparatus

1981-11-02

1984-03-20

Chambers, A. Michael

Valves and valve actuation

With correlated flow path

Pipe side

251228, 251279, 74 96, 74520, F16K 5106, G05G 104

Patent

active

044376464

ABSTRACT:
A "dump" valve for a concrete pumping line includes a tubular valve body for in-line connection in a distribution line and an end hinged cover plate for opening the valve. The valve includes a short rectangular discharge pipe, including flat walls, secured in a rectangular side wall opening in the valve body. The pipe has an outer flat end. A valve cover plate somewhat larger than the rectangular discharge pipe is provided with a sealing, gasketed face. The cover plate is hinged at one axial end to the valve body and is pivotally mounted to move between a closed position engaging the flat end of the discharge pipe and a pivoted depending open position in which the plate is swung clear of the bottom end of the discharge pipe section. An operating handle having an over-the-center latch linkage is coupled to the cover.

REFERENCES:
patent: 1381511 (1921-06-01), Smith
patent: 2373001 (1945-04-01), Allen
patent: 2995043 (1961-08-01), Lusk et al.
patent: 3074432 (1963-01-01), Beale et al.
patent: 3556116 (1971-01-01), Allen
patent: 4158367 (1979-06-01), Maillet

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