CA2004292A1 - Disposable body warmers - Google Patents

Disposable body warmers

Info

Publication number
CA2004292A1
CA2004292A1 CA2004292A CA2004292A CA2004292A1 CA 2004292 A1 CA2004292 A1 CA 2004292A1 CA 2004292 A CA2004292 A CA 2004292A CA 2004292 A CA2004292 A CA 2004292A CA 2004292 A1 CA2004292 A1 CA 2004292A1
Authority
CA
Canada
Prior art keywords
flat bag
weight
water
flat
heat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2004292A
Other languages
French (fr)
Other versions
CA2004292C (en
Inventor
Akio Usui
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mycoal Warmers Co Ltd
Original Assignee
Mycoal Warmers Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=17889190&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2004292(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mycoal Warmers Co Ltd filed Critical Mycoal Warmers Co Ltd
Publication of CA2004292A1 publication Critical patent/CA2004292A1/en
Application granted granted Critical
Publication of CA2004292C publication Critical patent/CA2004292C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A61F7/032—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction using oxygen from the air, e.g. pocket-stoves
    • A61F7/034—Flameless
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24V—COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
    • F24V30/00—Apparatus or devices using heat produced by exothermal chemical reactions other than combustion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • A61F7/032—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction using oxygen from the air, e.g. pocket-stoves
    • A61F7/034—Flameless
    • A61F2007/036—Fuels
    • A61F2007/038—Carbon or charcoal, e.g. active

Abstract

A disposable body warmer comprising a flat bag and, put in a flat form having a thickness of 2 to 5 mm, a heat generating agent composed of iron powder as a main ingredient and mixed therewith 9 to 11 % by weight of a water-retaining agent, 18 to 22 % by weight of water, a heat genaretion promotor and common salt or sodium chloride. The flat bag is provided with one air-permeable surface having air permeability per unit time limited to 5000 to 10000 sec/100 cc so as to bring about a reduction in the pressure accompanying oxidative heat generation of the heat generating agent packed in said flat bag, and the other surface of the flat bag is provided with a nontransferable self-adhesive layer.
CA002004292A 1988-11-30 1989-11-30 Disposable body warmers Expired - Lifetime CA2004292C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63-300795 1988-11-30
JP63300795A JPH02149272A (en) 1988-11-30 1988-11-30 Throw-away pocket heater

Publications (2)

Publication Number Publication Date
CA2004292A1 true CA2004292A1 (en) 1990-05-31
CA2004292C CA2004292C (en) 2000-06-13

Family

ID=17889190

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002004292A Expired - Lifetime CA2004292C (en) 1988-11-30 1989-11-30 Disposable body warmers

Country Status (7)

Country Link
US (1) US5046479A (en)
EP (1) EP0376490B1 (en)
JP (1) JPH02149272A (en)
AT (1) ATE91874T1 (en)
CA (1) CA2004292C (en)
DE (1) DE68907878T2 (en)
ES (1) ES2042011T3 (en)

Families Citing this family (131)

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Also Published As

Publication number Publication date
EP0376490B1 (en) 1993-07-28
DE68907878T2 (en) 1994-04-07
ATE91874T1 (en) 1993-08-15
EP0376490A1 (en) 1990-07-04
US5046479A (en) 1991-09-10
DE68907878D1 (en) 1993-09-02
ES2042011T3 (en) 1993-12-01
CA2004292C (en) 2000-06-13
JPH02149272A (en) 1990-06-07

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