Arrangement in plant equipment for supplying a binding agent dir

Details Arrangement in plant equipment for supplying a binding agent dir Arrangement in plant equipment for supplying a binding agent dir

1985-04-29

1987-01-06

Croyle, Carlton R.

Pumps

Condition responsive control of pump drive motor

By control of electric or magnetic drive motor

417305, 417540, 417900, 222108, 141116, F04B 1502, F04B 4902

Patent

active

046343474

ABSTRACT:
The invention relates to an arrangement in plant equipment for directly supplying to a building element a binder comprising, for example, mortar of pumpable consistency and containing water. The plant equipment includes a vessel for ready-mixed binder, a motor-driven pump and a pump conduit (3) for supplying binder under pressure to a nozzle (4). In order to prevent liquid from being expelled from the binder when the pump is stopped, so as to leave a dry plug in the nozzle, means (18) are provided for maintaining the pressure in and adjacent the nozzle (4) at a level which coincides at least substantially to atmospheric pressure.

REFERENCES:
patent: 650176 (1900-05-01), Holmes
patent: 1368934 (1921-02-01), Jackson
patent: 2545278 (1951-03-01), Head
patent: 2734462 (1956-02-01), Schaefer
patent: 3279383 (1966-10-01), Smith
patent: 3874417 (1975-04-01), Clay
patent: 4173430 (1979-11-01), Kubota
patent: 4254806 (1981-03-01), Elsworth

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