US5132162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated glazing
Assignee: Saint Gobain Glass France SAS
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Filing: 1990-12-21
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Granted: 1992-07-21
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Expires: 2010-12-21
Abstract
Abstract A heated glazing suitable for an aircraft window including, two or more rigid sheets of glass and a network of fine metal resistance wires. Power lead-in strips providing power to the metal resistance wires are separated from one of the rigid glass sheets by a layer of polytetrafluoroethylene (Teflon) or a similar material which allows relative sliding between the power lead-in strips and the rigid glass sheet.
Inventors
- 👤 Martial De Paoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:47
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/14; B64C1/1476; B64C1/1492; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10036; B32B17/10165; B32B17/10376; B32B17/10385; B32B17/1055; B32B17/10761; B32B17/1077; H; H05; H05B; H05B3/00; H05B3/84; H05B3/86; H05B2203/00; H05B2203/014; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
112 words
A heated glazing comprising: first and second rigid glass sheets; a flexible interlayer sandwiched between said first and second rigid glass sheets; a pair of power lead-in strips mounted at an interface between said first rigid glass sheet and said flexible interlayer; 17 a network of fine metal wires of electrical resistance extending between said pair of power lead-in strips; and a sliding zone formed opposite said power lead-in strips, said sliding zone permitting relative sliding movement between said power lead-in strips and said second rigid glass sheet, wherein the sliding zone projects into the interior of the glazing at least 5 mm beyond an inside edge of the power lead-in strips.
Claim 2
Dependent Claim
112 words
A heated glazing comprising: first and second rigid glass sheets; a flexible interlayer sandwiched between said first and second rigid glass sheets; a pair of power lead-in strips mounted at an interface between said first rigid glass sheet and said flexible interlayer; 17 a network of fine metal wires of electrical resistance extending between said pair of power lead-in strips; and a sliding zone formed opposite said power lead-in strips, said sliding zone permitting relative sliding movement between said power lead-in strips and said second rigid glass sheet, wherein the sliding zone projects into the interior of the glazing at least 5 mm beyond an inside edge of the power lead-in strips.
Claim 3
Dependent Claim
54 words
A heated glazing according to claim 1, wherein said flexible interlayer comprises first and second flexible interlayer portions, said first interlayer portion carrying said power lead-strips on a first face thereof and said second interlayer portion underlying the first interlayer portion and including a sliding material in a region opposite said power lead-in strips.
Claim 4
Dependent Claim
69 words
A heated glazing according to claim 1, wherein said flexible interlayer comprises first, second, and third interlayer portions, said first interlayer portion carrying said power lead-in strips on a first face thereof, said second interlayer portion including a sliding material in a region at least opposite said power lead-in strips, and said third interlayer underlying the second interlayer portion and being in contact with said second rigid glass sheet.
Claim 5
Dependent Claim
24 words
A heated glazing according to claim 2, wherein the sliding material is of a thickness equal to the thickness of the second interlayer portion.
Claim 6
Dependent Claim
29 words
A heated glazing according to claim 3, wherein the sliding material comprises at least two superposed strips whose combined thicknesses total to the thickness of the second interlayer portion.
Claim 7
Dependent Claim
31 words
A glazing according to claim 1, wherein the glazing has an outer lateral edge and the sliding zone has a lateral edge flush with the outer lateral edge of the glazing.
Claim 8
Dependent Claim
24 words
A glazing according to claim 6, wherein the glazing has a circumference and the sliding zone extends around the entire circumference of the glazing.
Claim 9
Dependent Claim
16 words
A glazing according to claim 1, wherein the interlayer includes a thermoplastic layer of polyvinyl butyral.
Claim 10
Dependent Claim
15 words
A glazing according to claim 1, wherein the interlayer includes a thermoplastic layer of polyurethane.
Claim 11
Dependent Claim
20 words
A glazing according to claim 1, wherein the interlayer includes a layer of polyvinyl butyral and a layer of polyurethane.
Claim 12
Dependent Claim
12 words
A glazing according to claim 1, wherein the sliding material is polytetrafluoroethylene.
Claim 13
Dependent Claim
26 words
A glazing according to claim 1, further comprising a third rigid glass sheet, said third rigid glass sheet being adjacent to said first rigid glass sheet.
Claim 14
Dependent Claim
25 words
A glazing according to claim 12, wherein said third rigid glass sheet has an edge offset from an edge of said first rigid glass sheet.
Claim 15
Dependent Claim
19 words
A glazing according to claim 1, wherein the power lead-in strips are adhered to the first rigid glass sheet.
Claim 16
Dependent Claim
13 words
A glazing according to claim 1, wherein the glazing is an aircraft glazing.
Claim 17
Dependent Claim
157 words
A heated glazing comprising: first and second rigid glass sheets; a flexible interlayer sandwiched between said first and second rigid glass sheets; a pair of power lead-in strips mounted at an interface between said first rigid glass sheet and said flexible interlayer; a network of fine metal wires of electrical resistance extending between said pair of power lead-in strips; and a sliding zone formed opposite said power lead-in strips, said sliding zone permitting relative sliding movement between said power lead-in strips and said second rigid glass sheets; wherein: said flexible interlayer comprises first and second flexible interlayer portions, said first interlayer portion carrying said power lead-in strips on a first face thereof and said second interlayer portion underlying the first interlayer portion and including a sliding material in a region opposite said power lead-in strips; and the sliding material comprises at least two superposed strips whose combined thicknesses total to the thickness of the second interlayer portion.
Claim 18
Dependent Claim
157 words
A heated glazing comprising: first and second rigid glass sheets; a flexible interlayer sandwiched between said first and second rigid glass sheets; a pair of power lead-in strips mounted at an interface between said first rigid glass sheet and said flexible interlayer; a network of fine metal wires of electrical resistance extending between said pair of power lead-in strips; and a sliding zone formed opposite said power lead-in strips, said sliding zone permitting relative sliding movement between said power lead-in strips and said second rigid glass sheets; wherein: said flexible interlayer comprises first and second flexible interlayer portions, said first interlayer portion carrying said power lead-in strips on a first face thereof and said second interlayer portion underlying the first interlayer portion and including a sliding material in a region opposite said power lead-in strips; and the sliding material comprises at least two superposed strips whose combined thicknesses total to the thickness of the second interlayer portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |