Apparatus for forming concrete pipe of uniform density including

Details Apparatus for forming concrete pipe of uniform density including Apparatus for forming concrete pipe of uniform density including

1980-09-17

1983-09-27

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Feed control of material en route to shaping area

318 39, 318 77, 364469, 364511, 425150, 425262, 425427, 425449, 425457, B28B 318, B28B 2124

Patent

active

044066058

ABSTRACT:
In order to form concrete pipe of uniform density in apparatus where a packer head packs concrete into a mold to form the pipe, the horsepower of the drive motor driving the packer is sensed and used to adjust the rate of concrete supply such as to insure a constant horsepower as the packer is moved from one end of the pipe mold to the other.

REFERENCES:
patent: 2758352 (1956-08-01), Perkins
patent: 3125714 (1964-03-01), Eisengren
patent: 3325710 (1967-06-01), Reynolds
patent: 3660003 (1972-05-01), Waddington
patent: 3662437 (1972-05-01), Long
patent: 3746494 (1973-07-01), Gauger
patent: 3855511 (1974-12-01), Smith
patent: 3942114 (1976-03-01), Keeling
patent: 3991984 (1976-11-01), Porter
patent: 4237408 (1980-12-01), Frecka
patent: 4249113 (1981-02-01), Werner

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