Patent US2852960A successfully refreshed from Google Patents.
Patent US4603899A successfully refreshed from Google Patents.
US4603899A
Expired / Lapsed
US
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Weather strip
Assignee: Toyoda Gosei Co Ltd
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Filing: 1985-07-29
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Granted: 1986-08-05
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Expires: 2005-07-29
Abstract
Abstract A weather strip comprises a main body having a water passage for draining rainwater, etc. and a water flow promoting member or members forming an integral part of the main body, provided in the water passage and containing a hydrophilic material. The main body is formed from EPDM rubber. The hydrophilic material is a hydrophilic polymer having good compatibility with the EPDM rubber. The water flow promoting member is bonded by vulcanization to the main body.
Inventors
- 👤 Tadanobu Iwasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:15
CPC Classifications
B; B60; B60J; B60J10/00; B60J10/20; B60J10/24; B60J10/15; B60J10/17; B60J10/25; B60J10/80; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24198; Y10T428/24744; Y10T428/29; Y10T428/2902
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
41 words
A weather strip comprising: (a) a main body; (b) said main body having a water passage; and (c) a water flow promoting member provided in said water passage, forming an integral part of said main body and containing a hydrophilic material.
Claim 2
Dependent Claim
41 words
A weather strip comprising: (a) a main body; (b) said main body having a water passage; and (c) a water flow promoting member provided in said water passage, forming an integral part of said main body and containing a hydrophilic material.
Claim 3
Dependent Claim
45 words
A weather strip as set forth in claim 1, wherein said main body is formed from EPDM rubber, said hydrophilic material is a hydrophilic polymer having good compatibility with said rubber, and said water flow promoting member is bonded by vulcanization to said main body.
Claim 4
Dependent Claim
62 words
A weather strip as set forth in claim 2, wherein said main body is attached to the trunk of an automobile and includes a draining lip held in intimate contact with an automobile body, said lip and said automobile body defining said water passage therebetween, said water flow promoting member having a free edge held in intimate contact with said automobile body.
Claim 5
Dependent Claim
68 words
A weather strip as set forth in claim 2, wherein said main body is attached to an automobile door and includes a sealing tube held in intimate contact with an automobile body and a sealing lip held in intimate contact with said door, said sealing tube and said sealing lip defining said water passage therebetween, said water flow promoting member being disposed on said sealing tube and lip.
Claim 6
Dependent Claim
65 words
A weather strip as set forth in claim 2, wherein said main body is attached to the roof of an automobile and includes a sealing portion held in intimate contact with a window pane, said water passage being defined between said sealing portion remote from the interior of said automobile and said window pane, said water flow promoting member being disposed on said sealing portion.
Claim 7
Dependent Claim
94 words
A weather strip as set forth in claim 2, wherein said main body is attached to a built-in window pane on an automobile and includes a pressing lip held in intimate contact with an automobile body and a groove in which said pane is fitted, said groove and said pane defining said water passage therebetween and said water flow promoting member being disposed in said groove, said main body having another water passage defined between said pressing lip and said automobile body and another water flow promoting member disposed in said other water passage.
Claim 8
Dependent Claim
25 words
A weather strip as set forth in claim 1, wherein said hydrophilic material consists mainly of a low molecular polyolefin polyol and contains ethylene oxide.
Claim 9
Dependent Claim
19 words
A weather strip as set forth in claim 7, wherein said hydrophilic material further contains a water absorbing polymer.
Claim 10
Dependent Claim
33 words
A weather strip as set forth in claim 1, wherein said hydrophilic material comprises EPDM rubber and a hydrophilic agent selected from the group consisting of polyethylene glycol, surface active agents and emulsifiers.
Claim 11
Dependent Claim
26 words
A weather strip as set forth in claim 1, wherein said hydrophilic material contains a water absorbing polymer, such as a saponified vinyl acetate-methyl acrylate copolymer.
Claim 12
Dependent Claim
45 words
A weather strip as set forth in claim 1, wherein said hydrophilic material is a paint consisting mainly of a low molecular polyolefin polyol and containing ethylene oxide, which are dissolved in a solvent, such as toluene, and applied to said water flow promoting member.
References Cited (Backward Citations)
US4445721A
Cited
US4513044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-04 | 1990-02-03 | 1990-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-04 | 1994-02-03 | 1994-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-04 | 1998-02-03 | 1998-08-05 | $7700.00 | Window Closed / Lapsed |