US4593175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical conduit with integral moisture-vapor barrier
Assignee: PPG Industries Inc
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Filing: 1985-02-13
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Granted: 1986-06-03
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Expires: 2005-02-13
Abstract
Abstract A braided, composite lead-in conduit for use in conducting electricity to electroconductive heating means of a heated, multiple-glazed window has spaces between individual wires filled with a substantially moisture impervious material to minimize mositure-vapor penetration into the insulating air space of the window.
Inventors
- 👤 George H. Bowser
- 👤 Stanley J. Pysewski
- 👤 Renato Chiesuzzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:57
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6715; H; H05; H05B; H05B3/00; H05B3/02; H05B3/06; H05B3/84
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
In a heatable multiple-glazed window comprised of two or more panes held in spaced apart relation by a spacer/sealant assembly defining a sealed insulating air space between the panes, and an electroconductive heater means applied to the air space facing surface of a one of the panes, a conduit for conducting electrical current from an electric power source to the electroconductive heater means, the electric power source being disposed exteriorly of the insulating air space, the conduit comprising: a plurality of electrical wires braided together; a first moisture-vapor substantially impervious material at least substantially filling spaces occurring between said wires; and an electrically insulating sheath sealingly enclosing said braided together wires.
Claim 2
Dependent Claim
111 words
In a heatable multiple-glazed window comprised of two or more panes held in spaced apart relation by a spacer/sealant assembly defining a sealed insulating air space between the panes, and an electroconductive heater means applied to the air space facing surface of a one of the panes, a conduit for conducting electrical current from an electric power source to the electroconductive heater means, the electric power source being disposed exteriorly of the insulating air space, the conduit comprising: a plurality of electrical wires braided together; a first moisture-vapor substantially impervious material at least substantially filling spaces occurring between said wires; and an electrically insulating sheath sealingly enclosing said braided together wires.
Claim 3
Dependent Claim
26 words
The conduit as set forth in claim 1, wherein the spacer/sealant assembly has a grommet secured therethrough, and wherein further, the conduit passes through said grommet.
Claim 4
Dependent Claim
26 words
The conduit as set forth in claim 2, wherein said electrically insulating sheath comprises a first protective sleeve and a second protective sleeve sealingly bonded together.
Claim 5
Dependent Claim
23 words
The conduit as set forth in claim 3, wherein said first and said second protective sleeves are each comprised of heat shrinkable material.
Claim 6
Dependent Claim
17 words
The conduit as set forth in claim 4, wherein said heat shrinkable material comprises a polyvinylchloride-containing material.
Claim 7
Dependent Claim
40 words
The conduit as set forth in claim 2, wherein any spaces occurring between the outer surface of said electrically insulating sheath and the inner surface of said grommet are at least substantially filled with a second moisture-vapor substantially impervious material.
Claim 8
Dependent Claim
21 words
The conduit as set forth in claim 6, wherein said first and said second substantially moisture-vapor impervious materials are the same.
Claim 9
Dependent Claim
20 words
The conduit as set forth in claim 6, wherein said first and said second substantially moisture-vapor impervious materials are different.
References Cited (Backward Citations)
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US3449551A
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US3467818A
Cited
US3710074A
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Cited
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Cited
US4306140A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |