 Two-piece can construction |
| The present invention utilizes the cup portion wherein one end of the can is integral with the ... |
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| Process for secondary recovery |
| OF THE INVENTION Prior to practicing the process of this invention it is sometimes desirable to ... |
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| Composition of a conductive ceramic glaze and improved method of forming same |
| OF THE PREFERRED EMBODIMENTS While the invention is particularly pointed out and distinctly ... |
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Disposable catalytic heater
| Details |
Inventors: Rappaport, Alfred A.;
Assignee:
Primary Examiner: Dority, Jr.; Carroll B.
Assistant Examiner: Barrett; Lee E.
Attorney, Agent or Firm: Miller; Gustave
This is a catalytic heater which is so inexpensive that it may be used as a disposable heater. It has a lower container section or fuel cartridge and wick for the fuel and any other liquid that may be present for dispensing. It is used together with an upper chimney container section. Alternately, only the fuel cartridge may be disposed of, and a new fuel cartridge may be mated with the previously used upper chimney section. A catalytic impregnated stainless steel member is reuseable along with a snuffer to be secured to the upper chimney section. The catalytic impregnated member is stainless steel, of approximately 0.0037 gauge, and may be either a foraminated plate or a wire mesh screen woven approximately 80 strands to the inch. A filter made of activated charcoal or any other comparable filtering material may also be provided over the fuel supply. In addition, the fuel compartment may be divided by vertical partitions into two or three compartments, particularly for use with liquids, such as insect repellants and other chemicals that are not miscible with liquid fuel. A fuel material with an upstanding wick is provided in the lower container section, and a snuffer tube is located in the upper chimney section for snuffing out the flame on the wick and thus permitting the catalytic heating action to continue. An insulating coating is provided on both sections to retain the heat, and to make it possible to carry the heater without it being too hot for comfort. |
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DETAILED DESCRIPTION OF THE INVENTION There is shown at 10 one form of the complete, assembled catalytic heater of this invention.
The heater 10 includes a fuel cartridge 12 which is initially provided with readily openable hermetically sealed cover 14 having a pull handle 16 for manually removing the cover 14.
A snap-on cover 18 is provided for then sealing the opened cartridge by snapping on the cover over cartridge edge 28 for use when only part of the fuel has been used up.
Alternately, the snap-on cover 18 may be used initially when packaged, omitting the hermetically sealed cover 14 entirely.
After the cover is removed, the cartridge 12 is mated with the upper chimney section 20 for operation.
Both the lower fuel containing cartridge 12 and the upper chimney section 20 are coated with a conventional heat insulating material 22 so as to retain the heat in cartridge 12 and chimney 20 and make the heater comfortable to use.
An outwardly displaced mating flange 24 is provided on one of the sections, preferably the upper chimney section 20, for the lower fuel cartridge 12 is disposed of when its fuel contents are used up.
A ledge 26 is located slightly below the top edge 28, and is always provided, whether or not the sealed cover 14 is provided, because it acts as a seat to receive and support the catalytic member 30 thereon, which is shown in FIG.
2.
This catalytic member 30 is made of a single plane plate 32 having a rectangular center portion occupied by catalytically impregnated stainless steel section, here shown as being of apporximately 0.
00037 gauge, and may be either a foraminated stainless steel plate of this same gauge, or a stainless steel wire mesh screen 34 woven of approximately eighty strands to the inch.
A central wick receiving opening therethrough is provided and this opening may have an eyelet 36 fixed thereabout in the screen 34 through which is extended a wick 38 extending upwardly from a fuel material 40 filling the cartridge 12, in which the liquid fuel has previously been absorbed to the desired amount
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