US4547906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat retaining article
Assignee: KANEBO Ltd A CORP OF JAPAN
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Filing: 1983-06-27
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Granted: 1985-10-22
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Expires: 2003-06-27
Abstract
Abstract The heat retaining article according to the invention comprises at least one inflatable envelope attached on a sheet material. The envelope is made of an air-impermeable sheet which is produced by treating a cloth with at least one synthetic or natural rubber. The heat retaining property of the article can be controlled by adjusting the amount of air filled in the envelope.
Inventors
- 👤 Takeshi Nishida
- 👤 Yousuke Yamagami
- 👤 Toshihide Takeda
- 👤 Toshio Saito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:44
CPC Classifications
A; A41; A41D; A41D13/00; A41D13/002; A41D31/00; A41D31/04; A41D31/06; A41D31/065; A41D2400/00; A41D2400/10; A41D2400/14; Y; Y10; Y10S; Y10S2/00; Y10S2/03
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
93 words
A heat retaining article comprising at least one inflatable envelope attached to a sheet material, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article being controlled by adjusting the amount of air in said envelope.
Claim 2
Dependent Claim
93 words
A heat retaining article comprising at least one inflatable envelope attached to a sheet material, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article being controlled by adjusting the amount of air in said envelope.
Claim 3
Dependent Claim
30 words
The heat retaining article according to claim 1, wherein the density of said wadding material is from 0.001 to 0.05 g/cm 3 based on the volume of the inflated envelope.
Claim 4
Dependent Claim
13 words
The heat retaining article according to claim 1, wherein said envelope is tubular.
Claim 5
Dependent Claim
21 words
The heat retaining article according to claim 3, wherein said tubular envelope has a diameter of from 5 to 500 mm.
Claim 6
Dependent Claim
21 words
The heat retaining article according to claim 1, wherein said envelope is divided into plural air chambers connected to each other.
Claim 7
Dependent Claim
62 words
The heat retaining article according to claim 1, wherein said envelope is attached to said sheet material such that, when said envelope is filled with air, a portion of said envelope which does not face said sheet material is inflated and projects away from said sheet material but the portion of said envelope which does face said sheet material is substantially plain.
Claim 8
Dependent Claim
29 words
The heat retaining article according to claim 1, wherein said article is a tent, a sleeping bag, boots, a bag, a portable ice box or an article of clothing.
Claim 9
Dependent Claim
15 words
The heat retaining article according to claim 1, wherein said wadding material comprises conjugate fibers.
Claim 10
Dependent Claim
97 words
A heat retaining article of clothing comprising at least one tubular envelope attached to a sheet material, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article of clothing being controlled by adjusting the amount of air in said envelope.
Claim 11
Dependent Claim
97 words
A heat retaining article of clothing comprising at least one tubular envelope attached to a sheet material, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article of clothing being controlled by adjusting the amount of air in said envelope.
Claim 12
Dependent Claim
32 words
The heat retaining article of clothing according to claim 9, wherein the density of said wadding material is from 0.011 to 0.05 g/cm 3 based on the volume of the inflated envelope.
Claim 13
Dependent Claim
23 words
The heat retaining article of clothing according to claim 9, wherein said tubular envelope has a diameter of from 5 to 100 mm.
Claim 14
Dependent Claim
65 words
The heat retaining article of clothing according to claim 9, wherein said tubular envelope is attached to said sheet material such that, when said envelope is filled with air, a portion of said envelope which does not face said sheet material is inflated and projects away from said sheet material but the portion of said envelope which does face said sheet material is substantially plain.
Claim 15
Dependent Claim
19 words
The heat retaining article of clothing according to claim 9, wherein said article is a garment having wadded shoulders.
Claim 16
Dependent Claim
15 words
The heat retaining article according to claim 9, wherein said wadding material comprises conjugate fibers.
Claim 17
Dependent Claim
110 words
A heat retaining article of clothing comprising at least one inflatable envelope attached to a sheet material, said envelope being divided into plural chambers which are connected to each other, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article of clothing being controlled by adjusting the amount of air in said envelope.
Claim 18
Dependent Claim
110 words
A heat retaining article of clothing comprising at least one inflatable envelope attached to a sheet material, said envelope being divided into plural chambers which are connected to each other, said envelope being made of an air-impermeable sheet consisting of a cloth treated with at least one synthetic or natural rubber, said envelope containing a wadding material consisting of at least two polymers having different melting points, one of said polymers having been melted to partially weld said wadding, thereby substantially preventing said wadding from moving about within said envelope, the heat retaining property of said article of clothing being controlled by adjusting the amount of air in said envelope.
Claim 19
Dependent Claim
29 words
The heat retaining article according to claim 15, wherein the density of said wadding is from 0.001 to 0.05 g/cm 3 based on the volume of the inflated envelope.
Claim 20
Dependent Claim
15 words
The heat retaining article according to claim 15, wherein said wadding material comprises conjugate fibers.
References Cited (Backward Citations)
US633968A
Cited
US1090596A
Cited
US2620493A
Cited
US2608690A
Cited
US3112956A
Cited
US3577305A
Cited
US3863343A
Cited
US3771170A
Cited
JPS5541766A
Cited
JPS5524088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |