Title: Portable heater for generating and circulating heat in wearing apparel

We claim:

1. A portable heater for generating and circulating heat in wearing apparel or the like comprising a compact case capable of being carried on a person and having a cavity therein adapted to receive a chemical heat cartridge, a chemical heat cartridge removably received in said cavity, a liquid reservoir in said case positioned for radiant heat transfer from said chemical heat cartridge through an inside heat exchanger wall of said case, 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, and pump means connected to said conduit to circulate heated liquid from said reservoir through said conduit on demand, said chemical heat cartridge consisting of a sealed container containing a chemical composition which reacts with an activating chemical when mixed therewith to provide an exothermic chemical reaction, and an access on said container and having a closure which is removable to provide access to the interior of said container for the insertion of an activating chemical.

2. The portable heater of claim 1 including a tube extending inside said container from said access and having apertures therein to assist in distribution of an activating chemical inserted into said access with said chemical composition for reaction.

3. The portable heater of claim 1 including a pressure relief check valve in said container to vent gas pressure buildup within said container resulting from reaction of said activating chemical with said chemical composition.


Other info:


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

Application Number: 06/186954
Filing Date: 1980-09-15
Publication_date: 1982-06-15
Assignee: Cieslak, Stanley
Cieslak, Leonard K.

Primary Class(es): 126/204 607/111, 607/104, 126/263.050, 126/263.060
Other Classes: A43B7/02; A43B7/00; A61F7/08
US Patent Ref:

0518579	April, 1894	Annenberg et al.
0912527	February, 1909	Batter
1199914	October, 1916	Mossor
2648325	August, 1953	Siple	128/402	Body warmer
3000616	September, 1961	Spangler	36/26	Body warmer
3670716	June, 1972	Esposito	126/204	SELF-HEATED PROTECTIVE GARMENT
3688762	September, 1972	Chi et al.	126/204	THERMAL CONTROL GARMENT
3737620	June, 1973	Harvey	BODY HEATING SYSTEM
3744053	July, 1973	Parker et al.	165/46	LIQUID LOOP GARMENTS
3884216	May, 1975	McCartney	126/204	Electrochemical energy source for diver suit heating
3906926	September, 1975	Staples	126/263	Heat source for curing underwater adhesives
3951127	April, 1976	Watson et al.	126/263	Constant temperature device

Other Refs: DE936887

July, 1949

126/263

Primary Examiner: Scott, Samuel
Assistant Examiner: Green, Randall L.
Attorney: Carothers, And Carothers