Patent US3899861A successfully refreshed from Google Patents.
US3899861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound insulating window
Assignee: COUNCIL LONDON BOROUGH HOUNSLO
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Filing: 1974-02-04
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Granted: 1975-08-19
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Expires: 1994-02-04
Abstract
Abstract A sound insulating window structure having at least two coextensive frames assembled together with an insulating spacer between them, a flexible insulating gasket surrounding each frame and reposing in recesses in the frame and the window opening. Acoustic material lines inwardly facing recesses between the glazing.
Inventors
- 👤 R G Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:36
CPC Classifications
E; E06; E06B; E06B5/00; E06B5/20; E06B5/205; E06B1/00; E06B1/56; E06B1/60; E06B1/6069; E06B1/62; E06B3/00; E06B3/04; E06B3/263; E06B3/26301; E06B3/26305; E06B2003/2631; E06B2003/26396
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
A sound insulating window structure comprising two frame members constructed from sheet material, each frame member in transverse cross-section being of a generally U-shaped configuration defined by a pair of flanges joined by a web, said frame members being positioned in coextensive side-by-side relationship with a first flange of each frame member being adjacent each other and a second flange of each frame member being remote from each other, said first flanges being disposed between said second flanges, resilient sound insulating means located between said first flanges, means connecting said two frame members in their coextensive side-by-side relationship, a peripheral outwardly opening recess formed in each of said webs bounding the respective frame members, sound insulating material located within said U-shaped frame members, a resilient glazing strip peripherally extending about and secured to said second flanges, glazing material secured by said resilient glazing strips to each of said frame members, and flexible gasket means received in each of said recesses and extending about the periphery of said frame members for supporting the latter in an associated window opening.
Claim 2
Dependent Claim
178 words
A sound insulating window structure comprising two frame members constructed from sheet material, each frame member in transverse cross-section being of a generally U-shaped configuration defined by a pair of flanges joined by a web, said frame members being positioned in coextensive side-by-side relationship with a first flange of each frame member being adjacent each other and a second flange of each frame member being remote from each other, said first flanges being disposed between said second flanges, resilient sound insulating means located between said first flanges, means connecting said two frame members in their coextensive side-by-side relationship, a peripheral outwardly opening recess formed in each of said webs bounding the respective frame members, sound insulating material located within said U-shaped frame members, a resilient glazing strip peripherally extending about and secured to said second flanges, glazing material secured by said resilient glazing strips to each of said frame members, and flexible gasket means received in each of said recesses and extending about the periphery of said frame members for supporting the latter in an associated window opening.
Claim 3
Dependent Claim
29 words
The sound insulating window structure as defined in claim 1 wherein said flexible gasket means constitute the sole means for securing said window structure in an associated window opening.
Claim 4
Dependent Claim
22 words
The sound insulating window structure as defined in claim 1 wherein said connecting means span across and connect together said first flanges.
Claim 5
Dependent Claim
22 words
The sound insulating window structure as defined in claim 1 wherein said flexible gasket means are normally generally circular in transverse cross-section.
Claim 6
Dependent Claim
22 words
The sound insulating window structure as defined in claim 4 wherein said connecting means span across and connect together said first flanges.
Claim 7
Dependent Claim
19 words
The sound insulating window structure as defined in claim 1 wherein said flexible gasket means are tubular hollow elements.
Claim 8
Dependent Claim
22 words
The sound insulating window structure as defined in claim 6 wherein said flexible gasket means are normally generally circular in transverse cross-section.
Claim 9
Dependent Claim
22 words
The sound insulating window structure as defined in claim 6 wherein said connecting means span across and connect together said first flanges.
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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |