US4874654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle window glass
Assignee: Nippon Sheet Glass Co Ltd
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Filing: 1988-06-06
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Granted: 1989-10-17
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Expires: 2008-06-06
Abstract
Abstract A vehicle window glass composed of a transparent part and a colored part formed on the periphery of the transparent part by the multi-color molding method. A method for producing a vehicle window glass by forming a colored part on the periphery of the transparent part by the multi-color molding method, characterized in that at least one cycle of injection molding for the multi-color molding is accomplished by injection-compression molding. A vehicle window glass composed of a transparent part and a peripheral colored part, characterized in that transparent part gradually thins out toward the periphery at the boundary between the transparent part and the colored part.
Inventors
- 👤 Masaaki Funaki
- 👤 Koki Kunihiro
- 👤 Yutaka Ichinomiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:51
CPC Classifications
B; B60; B60J; B60J1/00; B60J1/02; B29; B29C; B29C45/00; B29C45/16; B29C45/17; B29C45/46; B29C45/56; B29C45/561; B29C45/1615; B29C45/1628; B29K; B29K2995/00; B29K2995/0018; B29K2995/0025; B29K2995/0026; B29L; B29L2031/00; B29L2031/30; B29L2031/3052; B29L2031/778; B29L2031/7782; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/162; Y10T428/163; Y10T428/164; Y10T428/166; Y10T428/24; Y10T428/24777; Y10T428/24942; Y10T428/26; Y10T428/268; Y10T428/31504; Y10T428/31507
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
108 words
A multi colored molded window glass consisting essentially of: a central part made of a single layer transparent organic glass, and a peripheral part made of colored organic glass with at least one of translucent and opaque properties made of a transparent organic glass material incorporated with a pigment, said peripheral part being securely attached to a periphery of the central part, forming a composite glass, said window glass having characteristics so that the window glass retains original intended shape and has substantially no distortion of vision at a boundary between the central part and the peripheral part and an accurate surface due to uniform sink and shrinkage.
Claim 2
Dependent Claim
108 words
A multi colored molded window glass consisting essentially of: a central part made of a single layer transparent organic glass, and a peripheral part made of colored organic glass with at least one of translucent and opaque properties made of a transparent organic glass material incorporated with a pigment, said peripheral part being securely attached to a periphery of the central part, forming a composite glass, said window glass having characteristics so that the window glass retains original intended shape and has substantially no distortion of vision at a boundary between the central part and the peripheral part and an accurate surface due to uniform sink and shrinkage.
Claim 3
Dependent Claim
26 words
A window glass as claimed in claim 1, wherein the colored part is formed only on one of front and rear sides of the window glass.
Claim 4
Dependent Claim
18 words
A window glass as claimed in claim 1, wherein the transparent part is made of a thermoplastic resin.
Claim 5
Dependent Claim
21 words
A window glass as claimed in claim 1, wherein the colored part is made of polyethylene resin or vinyl chloride resin.
Claim 6
Dependent Claim
17 words
A window glass as claimed in claim 1, which has a thickness of 2 to 8 mm.
Claim 7
Dependent Claim
24 words
A window glass as claimed in claim 1, wherein the colored part is 0.5 to 2 mm thick and 5 to 30 mm wide.
Claim 8
Dependent Claim
20 words
A window glass as claimed in claim 1, wherein the surface is treated with transparent coating harder than the glass.
Claim 9
Dependent Claim
138 words
A multi colored molded window glass consisting essentially of: a central part made of a single layer transparent organic glass, and a peripheral part made of colored organic glass with at least one of translucent and opaque properties made of a transparent organic glass material incorporated with a pigment, said peripheral part and central part overlapping with and securely bonded to each other at a periphery of the central part so that the central part reduces its thickness and said peripheral part increases its thickness toward the periphery of the window glass forming a composite glass, said window glass having characteristics so that the window glass retains original intended shape and has substantially no distortion of vision at a boundary between the central part and the peripheral part and an accurate surface due to uniform sink and shrinkage.
Claim 10
Dependent Claim
138 words
A multi colored molded window glass consisting essentially of: a central part made of a single layer transparent organic glass, and a peripheral part made of colored organic glass with at least one of translucent and opaque properties made of a transparent organic glass material incorporated with a pigment, said peripheral part and central part overlapping with and securely bonded to each other at a periphery of the central part so that the central part reduces its thickness and said peripheral part increases its thickness toward the periphery of the window glass forming a composite glass, said window glass having characteristics so that the window glass retains original intended shape and has substantially no distortion of vision at a boundary between the central part and the peripheral part and an accurate surface due to uniform sink and shrinkage.
Claim 11
Dependent Claim
31 words
A vehicle window glass as claimed in claim 8, wherein said central part overlaps the peripheral part at front and rear sides of the peripheral part to partly form three layers.
Claim 12
Dependent Claim
20 words
A vehicle window glass as claimed in claim 8, which is formed from organic glass by the multi-color molding method.
Claim 13
Dependent Claim
21 words
A vehicle window glass as claimed in claim 10, wherein at least the transparent part is formed by the injection-compression method.
Claim 14
Dependent Claim
18 words
A window glass as claimed in claim 8, wherein the colored part is 5 to 100 mm wide.
Claim 15
Dependent Claim
18 words
A window glass as claimed in claim 12, wherein the colored part is 15 to 50 mm wide.
Claim 16
Dependent Claim
21 words
A window glass as claimed in claim 8, wherein the transparent part thins out along a slope of 4° to 12°.
Claim 17
Dependent Claim
21 words
A window glass as claimed in claim 14, wherein the transparent part thins out along a slope of 4° to 8°.
Claim 18
Dependent Claim
126 words
A window glass comprising, a central part made of a single layer transparent organic glass, and a peripheral part made of colored organic glass with at least one of translucent and opaque properties made of a transparent organic glass material incorporated with a pigment. said peripheral part being integrally connected to a periphery of the central part by injection molding one of the central part and the peripheral part to the other of the central part and the peripheral part, forming a composite glass, said window glass having characteristics so that the window glass retains original intended shape and has substantially no distortion of vision at a boundary between the central part and the peripheral part and an accurate surface due to uniform sink and shrinkage.
Claim 19
Dependent Claim
126 words
A window glass comprising, a central part made of a single layer transparent organic glass, and a peripheral part made of colored organic glass with at least one of translucent and opaque properties made of a transparent organic glass material incorporated with a pigment. said peripheral part being integrally connected to a periphery of the central part by injection molding one of the central part and the peripheral part to the other of the central part and the peripheral part, forming a composite glass, said window glass having characteristics so that the window glass retains original intended shape and has substantially no distortion of vision at a boundary between the central part and the peripheral part and an accurate surface due to uniform sink and shrinkage.
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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) | 1992-10-16 | 1993-04-17 | 1993-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-16 | 1997-04-17 | 1997-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-16 | 2001-04-17 | 2001-10-17 | $7700.00 | Window Closed / Lapsed |