Title: Portable furnace for wearing apparel

We claim:

1. A portable furnace for generating and circulating heat in wearing apparel or the like comprising a compact insulated case capable of being carried on a person and having a cavity therein and further adapted to be opened to receive slow burning solid fuel agglomerates in said cavity for combustion, a liquid reservoir in said case positioned for radiant heat transfer from ignited fuel agglomerates in said cavity to a liquid in said reservoir, a flexible liquid conduit having both ends thereof connected for circulation of the heated liquid from said reservoir through said conduit in a closed circuit adapted for circulation of heated liquid from said reservoir through said conduit, and pump means connected to said conduit for hand manipulation thereof to circulate heated liquid from said reservoir through said conduit on demand, said cavity having top and bottom walls and side walls with one side wall providing a heat exchanger for said radiant heat transfer, said side walls except said one side wall being insulated for prevention of heat transfer, said one heat exchanger side wall being lightly insulated on the inside such as to permit heat transfer through said one side wall from said cavity to said reservoir but at the same time prevent excessive moisture buildup on said one side wall which would otherwise be capable of extinguishing a solid fuel agglomerate under combustion in said cavity, and vent apertures in at least one of said top and bottom walls.

2. The portable furnace of claim 1 including damper means adapted to adjustably cover selected of said vent apertures.

3. The portable furnace of claim 1 wherein said vent apertures exit in both said bottom and top walls.

4. The portable furnace of claim 1 including a glove, said flexible conduit adapted for circulation of heater liquid from said reservoir within said glove.

5. The portable furnace of claim 1 wherein said pump means consists of a hand operable diaphragm pump with check valves for unidirectional liquid flow in said conduit.

6. The portable furnace of claim 1 including conduit extensions which extend the opposite ends of said conduit into the mid interior of the reservoir.

7. The portable furnace of claim 6 wherein said conduit extensions extend into said reservoir from opposite directions.

8. The portable furnace of claim 1 including at least one slow burning solid fuel agglomerate received in said cavity for combustion.

9. The portable furnace of claim 8 wherein said agglomerate contains an assistant combustion agent producing oxygen with combustion.

10. The portable furnace of claim 1 adapted to receive a plurality of slow burning solid fuel agglomerates in said cavity.


Other info:


Inventors: Cieslak, Stanley (14 Creek Rd., McKees Rocks, PA, 15136)
Cieslak, Leonard K. (15 Creek Rd., McKees Rocks, PA, 15136)

Application Number: 06/049059
Filing Date: 1979-06-18
Publication_date: 1981-08-04
Assignee: Cieslak, Stanley
Cieslak, Leonard K.

Primary Class(es): 2/160 36/2.600, 126/206
Other Classes: A43B7/02; A43B7/00; A41F7/00; A41D19/00; A43B7/02
US Patent Ref:

0912527	February, 1909	Batter	36/26
3000616	September, 1961	Spangler	36/26	Body warmer
3712288	January, 1973	Weiss	126/206	HEATED ARTICLE OF APPAREL
4094080	June, 1978	Sanders	36/26	Boot or shoe heating device
4118946	October, 1978	Tubin	126/204	Personnel cooler

Other Refs:
Primary Examiner: Lawson, Patrick D.
Assistant Examiner:
Attorney: Carothers, And Carothers