US4106478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaged heat generator
Assignee: Individual
•
Filing: 1976-04-09
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Granted: 1978-08-15
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Expires: 1996-04-09
Abstract
Abstract A packaged heat generator is used for warming or heating the human body, canned foods and similar objects. It consists of three bags: a first bag contains a composition of metallic powders; a second bag has a vent portion through which air is introduced, and contains the first bag and a composition of oxidation promotors in an isolated relation, such as by two-folding it, before the first use; and a third bag encloses the first and second bags, whereby for use, relatively gentle forces applied to the first and second bags with the third bag completely removed cause the two compositions to be mixed inside the second bag so that the mixtures can provide heat of oxidation and heat of hydration by exposure to air through the second bag.
Inventors
- 👤 Sunao Higashijima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:04
CPC Classifications
A; A61; A61F; A61F7/00; A61F7/02; A61F7/03; A47; A47J; A47J36/00; A47J36/24; A47J36/28; A61F7/032; A61F7/034; B; B65; B65D; B65D81/00; B65D81/34; B65D81/3484; F; F24; F24V; F24V30/00; A61F2007/0001; A61F2007/0268; A61F2007/0276
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
116 words
A packaged heat generator for warming objects, said heat generator comprising: heat generating material; first enclosing means of air-impermeable material surrounding said heat generating material for containing said heat generating material therein; second enclosing means of air impermeable material surrounding said first enclosing means for containing said first enclosing means therein, said second enclosing means having air passage means therethrough for allowing air to enter into said second enclosing means; oxidation promotion material within said second enclosing means and outside of said first enclosing means; third enclosing means of air impermeable material surrounding said second enclosing means for removably containing said second enclosing means therein, said third enclosing means being openable and recloseable at one end.
Claim 2
Dependent Claim
116 words
A packaged heat generator for warming objects, said heat generator comprising: heat generating material; first enclosing means of air-impermeable material surrounding said heat generating material for containing said heat generating material therein; second enclosing means of air impermeable material surrounding said first enclosing means for containing said first enclosing means therein, said second enclosing means having air passage means therethrough for allowing air to enter into said second enclosing means; oxidation promotion material within said second enclosing means and outside of said first enclosing means; third enclosing means of air impermeable material surrounding said second enclosing means for removably containing said second enclosing means therein, said third enclosing means being openable and recloseable at one end.
Claim 3
Dependent Claim
67 words
A heat generator as claimed in claim 1, wherein said second enclosing means is folded into two portions along a fold line inside said third enclosing means, said first enclosing means being on one side of said fold line and said oxidation promotion material being on the other side of said fold line, whereby said heat generating material is securely kept away from said oxidation promotion material.
Claim 4
Dependent Claim
39 words
A heat generator as claimed in claim 1, wherein said air passage means is comprised of: a channel extending longitudinally along one side of said second enclosing means; and a strip of air-permeable material beneath and lining said channel.
Claim 5
Dependent Claim
35 words
A heat generator as claimed in claim 1, wherein said second enclosing means is comprised of two laminated sheet materials, one being air-permeable, and the other being air-impermeable with a plurality of air holes therethrough.
Claim 6
Dependent Claim
53 words
A heat generator as claimed in claim 1, wherein said second enclosing means is comprised of: a generally cylindrical air-impermeable base material having on one side thereof a plurality of air holes; and a coating of air-permeable and heat-insulating material applied over said side of said air-permeable base material having said holes therein.
Claim 7
Dependent Claim
35 words
A heat generator as claimed in claim 1, wherein said heat generating material is a mixture of powdered metals selected from the group consisting of: powdered iron; powdered aluminum; powdered ferro-silicon; powdered silicon; and graphite.
Claim 8
Dependent Claim
36 words
A heat generator as claimed in claim 1, wherein said heat generating material is a mixture of powdered metals selected from the group consisting of: powdered iron; powdered aluminum; powdered ferro-silicon; powdered silicon; graphite; and bentonite.
Claim 9
Dependent Claim
35 words
A heat generator as claimed in claim 1, wherein said oxidation promoting material is a mixture of materials selected from the group consisting of: humidified activated charcoal powders; powdered fabrics; chaffed charcoal powders; and zeolit.
Claim 10
Dependent Claim
38 words
A heat generator as claimed in claim 1, wherein said oxidation promoting material is comprised of a mixture of materials selected from the group consisting of: humidified activated charcoal powders; powdered fabrics; chaffed charcoal powders; zeolite; and bentonite.
Claim 11
Dependent Claim
37 words
A heat generator as claimed in claim 1, wherein said first enclosing means is open at one end thereof and is expandably folded closed, and the other end thereof is heat sealed to said second enclosing means.
Claim 12
Dependent Claim
25 words
A heat generator as claimed in claim 1, wherein said first enclosing means is adapted to collapse by application of pressure, bending or gentle impact.
Claim 13
Dependent Claim
34 words
A heat generator as claimed in claim 1, wherein the amounts of said heat generating material and said oxidation promoting material require substantially 5% to 50% of the capacity of said second enclosing means.
Claim 14
Dependent Claim
32 words
A heat generator as claimed in claim 1, further comprising, in said first enclosing means, materials selected from the group consisting of: fragrant smelling substances; deodorant substances; insecticides; and insect repellent substances.
Claim 15
Dependent Claim
52 words
A heat generator as claimed in claim 1, wherein said second enclosing means is comprised of: air-permeable material of a generally cylindrical form; and synthetic resin material attached by means of a heat-fusion to at least a portion of said air-permeable material whereby portions of said air-permeable material are impermeable to air.
Claim 16
Dependent Claim
158 words
A packaged heat generator for warming objects, said heat generator comprising: heat generating material; first enclosing means of air-impermeable material surrounding said heat generator material for containing said heat generating material therein; second enclosing means of air impermeable material surrounding said first enclosing means for containing said first enclosing means therein, said second enclosing means having air passage means therethrough for allowing air to enter into said second enclosing means, said air passage means being comprised of: a channel extending longitudinally along one side of said second enclosing means, and a strip of air-permeable material beneath and lining said channel; oxidation promotion material within said second enclosing means and outside of said first enclosing means whereby said oxidation material is separated from said heat generating material; and third enclosing means of air impermeable material surrounding said second enclosing means for removably containing said second enclosing means therein, said third enclosing means being openable and recloseable at one end.
Claim 17
Dependent Claim
158 words
A packaged heat generator for warming objects, said heat generator comprising: heat generating material; first enclosing means of air-impermeable material surrounding said heat generator material for containing said heat generating material therein; second enclosing means of air impermeable material surrounding said first enclosing means for containing said first enclosing means therein, said second enclosing means having air passage means therethrough for allowing air to enter into said second enclosing means, said air passage means being comprised of: a channel extending longitudinally along one side of said second enclosing means, and a strip of air-permeable material beneath and lining said channel; oxidation promotion material within said second enclosing means and outside of said first enclosing means whereby said oxidation material is separated from said heat generating material; and third enclosing means of air impermeable material surrounding said second enclosing means for removably containing said second enclosing means therein, said third enclosing means being openable and recloseable at one end.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |