Claims
- 1. A heat operated refrigerator apparatus which is alternately capable of being driven by a gas burner or one of a plurality of electric heating elements comprising: a gas burner circuit being electrically operated and having a plurality of electrically operated switch members associated with plurality of alternately operated current sources, including alternating current, a D.C. generator and a battery, said switch members being closed in said gas burner circuit to automatically put said burner in operation and to maintain it in operation, and a pair of electromagnetic elements which, when one of said alternate current sources delivers current to one of said electric heating elements operatively connected therewith is arranged to automatically place the burner out of operation by opening one of said electrically operated switch members, and whereby when said battery is the only available current source, said burner circuit is activated, thereby to set the burner in operation.
- 2. A heat operated refrigerator as claimed in claim 1 wherein one of said heating elements is operable by said generator and the other of said heating element is operable by the alternating current source.
- 3. A heat operated refrigerator as claimed in claim 1 wherein one of said electromagnetic elements when said alternating current source is connected to one of said heating elements is aranged to automatically disconnect said generator as a current source to the heating element or, if the burner is in operation, to make the same inoperative when said alternating current source is connected to one of said heating elements.
- 4. A heat operated refrigerator as claimed in claim 3 wherein said generator has a substantially lower voltage than the voltage of said alternating current source.
Priority Claims (1)
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7710072 |
Sep 1977 |
SEX |
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Parent Case Info
This application is a continuation-in-part of application Ser. No. 769,788, filed 8/26/85, abandoned which is a continuation of Ser. No. 728,442, filed 4/29/85, abandoned, which is a continuation of Ser. No. 492,601, filed 5/9/83, abandoned which is a continuation of divisional application Ser. No. 195,867, filed 10/10/80, abandoned, of patent application Ser. No. 938,772, filed 9/1/78, now U.S. Pat. No. 4,257,758, issued Mar. 24, 1981.
US Referenced Citations (5)
Divisions (1)
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Date |
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938772 |
Sep 1978 |
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Continuations (3)
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728442 |
Apr 1985 |
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Parent |
492601 |
May 1983 |
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Parent |
195867 |
Oct 1980 |
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Continuation in Parts (1)
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769788 |
Aug 1985 |
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