Surge chamber for swing valve grout pumps

Details Surge chamber for swing valve grout pumps Surge chamber for swing valve grout pumps

1990-07-16

1991-11-12

Bertsch, Richard A.

Pumps

Expansible chamber type

Mechanically actuated distributor

417540, 417900, 137568, F04B 700

Patent

active

050643606

ABSTRACT:
Improved apparatus (10) for pumping of a viscous, flowable material which minimizes the problem of large pressure fluctuations in downstream conduits (16). The apparatus (10) preferably includes a twin piston cement pump (12) and a flexible material delivery conduit (16). A surge control apparatus (14) operatively couples the pump (12) and the conduit (16). The surge control apparatus (14) includes a primary material-conveying body (40) with an elongated surge chamber (46) extending outward from the primary body (40). The surge chamber (46) includes a slidable piston (48) and means for filling a portion of the chamber with a pressurized fluid (62).

REFERENCES:
patent: 2720220 (1955-10-01), Gratzmuller
patent: 3131721 (1964-05-01), Allen
patent: 3963385 (1976-06-01), Caban
patent: 3989420 (1976-11-01), Taylor
patent: 4057373 (1977-11-01), Schwing
patent: 4177023 (1979-12-01), Kamiya et al.
patent: 4311302 (1982-01-01), Heyer et al.
patent: 4345715 (1982-08-01), Van Craenenbroeck
patent: 4880365 (1989-11-01), Austin

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