Electrically heated choke having improved control

Details Electrically heated choke having improved control Electrically heated choke having improved control

1986-01-29

1987-10-13

Miles, Tim

Gas and liquid contact apparatus

Fluid distribution

Valved

219505, 219511, 236101C, F02M 112

Patent

active

046997385

ABSTRACT:
An automatic choke mechanism including an electrical heater and a circuit for energizing the heater so that the choke is opened first at a relatively rapid rate and later at a slower rate. The means for heating the choke comprises an N.T.C. device in series circuit with a P.T.C. heater and a temperature responsive shunting circuit for shunting the N.T.C.

REFERENCES:
patent: 3699936 (1972-10-01), Vartanian
patent: 3699937 (1972-10-01), De Petris
patent: 3972311 (1976-08-01), De Petris
patent: 4038955 (1977-08-01), Paulmier
patent: 4131657 (1978-12-01), Ball, Jr. et al.
patent: 4201735 (1980-05-01), Byam
patent: 4218406 (1980-08-01), Detweilier
patent: 4237077 (1980-12-01), Berg
patent: 4496496 (1985-01-01), Walstra

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