Catalytic heater or warmer

• US 4,068,651 A
• Filed: 08/20/1976
• Issued: 01/17/1978
• Est. Priority Date: 08/20/1976
• Status: Expired due to Term

• Current Assignee: Alfred A. Rappaport
• Original Assignee: Alfred A. Rappaport
• Inventors: Rappaport, Alfred A.
• Primary Examiner(s): Capossela, Ronald C.
• Application Number:
  US05/716,260
• Time in Patent Office: 515 Days
• Field of Search: 126/208, 431/328
• US Class Current: 126/208
• CPC Class Codes: A61F 7/032 using oxygen from the air, e.g. pocket-stoves

Abstract

This is a catalytic warmer or heater which may be made in different sizes and shapes. A chimney section top has an opening through which a heatable material container is insertable, and which rests on an X-frame supported on punched-in tongues providing draft apertures for the chimney, while a lower spaced series of punched-in tongues rest on a catalyst containing cage which, in turn, rests on a flange of fuel cartridge section below having a wick extending up from the cartridge to be lighted temporarily to initiate the catalytic combustion process. The supporting X-frame has a depending cylinder providing a snuffer to snuff out the wick and permit the catalytic combustion to continue. The catalytic combustion is stopped when desired by merely turning the entire heater or warmer upside down and then removing the fuel cartridge containing section, now on top, from the chimney section, now on bottom, the catalyst cage remaining with the chimney section and thus separated from the cartridge fuel section.

Claims

1. A catalytic heater (10) comprising a lower container section (12) having an upwardly extending flange (44) adjacent to the top of said lower container section (12), an upper chimney section (46) fitting snugly on and removably supported on said lower container section (12) about said lower container section extending flange (44), said chimney section (46) having air draft means (50, 52, 54) therein, a sealed fuel cartridge (14) having a fuel absorbent material (22) therewithin having a premeasured amount of liquid fuel absorbed therein, and a wick (26) in said fuel absorbent material (22) extending up from said material (22), said sealed fuel cartridge (14) having a readily removable cover (16) secured thereon, said cartridge fitting within said lower container section (12), a catalyst containing member (28) supported over said fuel absorbent material (22) and having aperture means (40) through which said wick (26) is extended, a wick snuffer (64) depending from a frame (62) mounted above said fuel cartridge (14) insertable through a top opening in the roof (68) of said chimney section (46), said chimney section having fuel combustion vapor emitting openings (66) therein.

2. The heater of claim 1, said air draft means comprising a plurality of apertures (50, 52, 54) in the lower portion of said chimney section.

3. The heater of claim 2, said apertures (50, 52, 54) extending about said chimney section (46), and tongues (56, 58) extending inwardly from said apertures, said cartridge (14) having an inwardly extending ledge (20) remaining adjacent its top edge when the sealing cover (16) is removed, said catalyst containing member (28) being supported on said ledge (20) over said opened cartridge (14), at least some of said tongues holding said catalyst containing member down on said ledge (20).

4. The heater of claim 3, and an X-frame (62) with its X-fingers (60) secured on some of said tongues, said fingers (60) permitting access of the fuel combustion vapor to said heatable container (72 or 74).

5. The heater of claim 4, said plurality of apertures being in two vertically spaced rows, some of said tongues (56) extending inwardly from the bottom of the apertures (52, 54) of the lower row of apertures holding down said catalyst containing member (28) in position on said ledge (20).

6. The heater of claim 5, others of said tongues (58) extending inwardly from the top of the apertures (50) of the upper row of apertures providing support for said heatable container supporting X-frame (62).

7. The heater of claim 1, said snuffer (64) comprising an inverted stainless steel hollow cylinder.

8. The heater of claim 1, said catalyst containing member comprising a foraminated cage (28) having a catalyst impregnated foraminated member (38) therewithin.

9. The heater of claim 8, said cage (28) comprising two dished foraminated stainless steel plates (30, 32) having flanges (34, 36) joined together and said catalyst impregnated member comprising a foraminated screen.

10. The heater of claim 8, said foraminated cage member (28) and said catalyst member (38) having said aligned openings through which said wick (42) is extended, said foraminated cage member (28) wick openings having upwardly extending lip guides (40) thereabout for guiding said wick (42) therethrough.

11. The heater of claim 1, and a cover (76) for closing said heatable material container (72 or 74) fitting thereover through a suitable opening in the top (68) of said chimney section (46).

12. The heater of claim 11, said upper (46) and lower (12) sections and said cover (74) being coated with a heat retaining material (48, 78).

13. The heater of claim 1, and a fuel vapor filter (24) supported above said fuel supply (22).

14. The heater of claim 13, said filter comprising activated charcoal.

15. The heater of claim 13, said filter (24) being between said catalyst cage member (28) and said fuel supply (22).

16. The heater of claim 1, said heatable material container (72, 74) having a cover (76) and containing vapor producing material.