Dispensing – With heating or cooling means – Cooling only
Patent
1976-03-22
1977-06-07
Hoffman, Drayton E.
Dispensing
With heating or cooling means
Cooling only
219214, 219303, H05B 102, B67D 562
Patent
active
040277860
ABSTRACT:
Apparatus for heating flowable material from a pressurized container in a housing with a heat exchanger assembly having an inlet and outlet and passage conducting the material therebetween, and an electrically heated closed tube in heat transfer relation with the passage. In this general arrangement, an improvement is provided in the control for the electrically heated closed tube, that comprises a substantially flat non-conducting chassis with electric conductors through the chassis and sealed thereto; an adjustable thermostat is supported on one side of the chassis and connected to the conductors; an extending heat conducting closed tube in fluid tight seal with the chassis is provided on the other side thereof and it has a heating element therein. The passage is disposed around the tube in a tight helix for good heat transfer and a biased non-conducting axially and rotatably moveable control rod extends through the chassis and is sealed thereto. A cam on the rod connect it to the thermostat and the rod activates the thermostat on axial movement and adjusts it through the cam on rotary movement. On this control mechanism there is provided a non-conducting light transmitting cover hermetically sealed to the chassis to enclose the thermostat and all connections thereto including a signal light whereby the control elements are completely sealed against electrical and fluid leakage. A single control rod provides adjustment of the temperature of the dispensed material and acts as a turn-on switch.
REFERENCES:
patent: R27304 (1972-03-01), Flowers
patent: 3588467 (1971-06-01), Grosjean
patent: 3733460 (1973-05-01), Ryckman
patent: 3749880 (1973-07-01), Meeks
patent: 3758002 (1973-09-01), Doyle et al.
Cullen John F.
General Electric Company
Hoffman Drayton E.
Platt Leonard J.
Powers George R.
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