US4240228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing apparatus for refrigerators and method of manufacture thereof
Assignee: Toshiba Corp
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Filing: 1979-02-28
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Granted: 1980-12-23
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Expires: 1999-02-28
Abstract
Abstract A picture-frame shaped gasket for refrigerators is fixed on the inside margin of the door for preventing leakage of cold, and at least the lower side of the gasket is formed of soft synthetic resin which has been mixed with reinforcing fibres so as to provide a gasket of high strength.
Inventors
- 👤 Yasuhiro Okamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:52
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/08; F25D23/082; F25D23/087; B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; B29C48/00; B29C48/03; B29C48/09; B29C48/11; B29C48/12; B29C48/15; Y; Y10; Y10S; Y10S277/00; Y10S277/921; Y10S277/924; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
70 words
A gasket for refrigerators, which gasket is approximately of picture-frame shape having a plurality of sides and is provided for sealing the inside margin of the door with which the storage space of a refrigerator is provided for insertion and removal of food, comprising at least a lower side of said plurality of sides consisting of soft synthetic resin and 0.2 to 1% by weight of mixed individual reinforcing fibres.
Claim 2
Dependent Claim
70 words
A gasket for refrigerators, which gasket is approximately of picture-frame shape having a plurality of sides and is provided for sealing the inside margin of the door with which the storage space of a refrigerator is provided for insertion and removal of food, comprising at least a lower side of said plurality of sides consisting of soft synthetic resin and 0.2 to 1% by weight of mixed individual reinforcing fibres.
Claim 3
Dependent Claim
85 words
A gasket for refrigerators, which gasket is approximately of picture-frame shape having a plurality of sides and is provided for sealing the inside margin of the door with which the storage space of a refrigerator is provided for insertion and removal of food, comprising at least a lower side of said plurality of sides consisting of soft synthetic resin and 0.2 to 1% by weight of mixed individual reinforcing fibres wherein said reinforcing fibres are of 0.2 to 0.5 denier and 3-6 mm in length.
Claim 4
Dependent Claim
85 words
A gasket for refrigerators, which gasket is approximately of picture-frame shape having a plurality of sides and is provided for sealing the inside margin of the door with which the storage space of a refrigerator is provided for insertion and removal of food, comprising at least a lower side of said plurality of sides consisting of soft synthetic resin and 0.2 to 1% by weight of mixed individual reinforcing fibres wherein said reinforcing fibres are of 0.2 to 0.5 denier and 3-6 mm in length.
Claim 5
Dependent Claim
103 words
A gasket for refrigerators which gasket is approximately of picture-frame shape having a plurality of sides and is provided for sealing the inside margin of the door with which the storage space of a refrigerator is provided for insertion and removal of food, comprising at least a lower side of said plurality of sides consisting of soft synthetic resin and 0.2 to 1% by weight of mixed individual reinforcing fibres and further comprising a hollow part; a flexible magnet mounted within said hollow part; a connecting element connected to the door, and a buffer element interconnecting said connecting element and the hollow part.
Claim 6
Dependent Claim
103 words
A gasket for refrigerators which gasket is approximately of picture-frame shape having a plurality of sides and is provided for sealing the inside margin of the door with which the storage space of a refrigerator is provided for insertion and removal of food, comprising at least a lower side of said plurality of sides consisting of soft synthetic resin and 0.2 to 1% by weight of mixed individual reinforcing fibres and further comprising a hollow part; a flexible magnet mounted within said hollow part; a connecting element connected to the door, and a buffer element interconnecting said connecting element and the hollow part.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |