Concrete pipe machine

Details Concrete pipe machine Concrete pipe machine

1982-03-11

1986-07-15

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

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

Temperature control

264 406, 264311, 425432, 425435, B28B 2134, B28B 2178

Patent

active

046003738

ABSTRACT:
A machine for fabricating sulfur concrete pipe includes a centrifuge for centrifuging a mixture of the constituents of the sulfur concrete. The centrifuge includes a port for the direction of heat therethrough for heating the mixture. The centrifuge also includes a flexible cylindrical wall which may be directed radially inwards for compacting the mixture in response to a fluid pressure exerted on a side of said flexible cylinder opposite from said mixture. Thermometers are provided for measuring the temperature of applied heat at different points within said centrifuge, and a computer is responsive to the measured temperatures for computing future values of temperature to be applied to said mixture in accordance with a predetermined relationship based on past temperature and time of centrifuging.

REFERENCES:
patent: 1203543 (1916-10-01), Haymaker et al.
patent: 2342801 (1944-02-01), Guerci
patent: 2671260 (1954-03-01), Jessen et al.
patent: 2703916 (1955-03-01), Butler
patent: 2772466 (1956-12-01), Van Rensselaer
patent: 2829418 (1958-04-01), Truswell
patent: 3566439 (1971-03-01), Mouly et al.
patent: 3718721 (1973-02-01), Gould et al.
patent: 3824479 (1974-07-01), Alger
patent: 3950118 (1976-04-01), Adair

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