US3918512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window arrangement
Assignee: Individual
•
Filing: 1974-11-22
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Granted: 1975-11-11
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Expires: 1994-11-22
Abstract
Abstract A modification to virtually eliminate air leakage (in a window arrangement which has both a double-hung inner window and an outer storm window, but considerable leakage). The modification adds a flexible clear plastic bag between the inner and outer window, inflated to enough pressure to make the bag firmly contact the trim between the windows.
Inventors
- 👤 David W Kuneman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/26; E06B3/2605; E06B7/00; E06B7/16; E06B2003/261
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
In a wall of a headed building exposed to winter cold and winds an air leakage inhibiting heat-transfer minimizing winterized window arrangement comprising (1) a verticallyslideable two-sash glazed inner window of conventional wooden doUble-hung type, permanently built into said wall, (2) a seasonal, conveniently removable and replaceable, single sash, glazed outer window element of so-called ''''storm window'''' type, (3) a transparent and clear air-tight inter-window bag of flexible plastic positioned in between the doublehung sash and said storm window, and (4) an inflation valve connected to said window bag for inflating of said bag to a low pressure and for subsequently sealing said, said window valve being positioned to permit inflation with said double hung window substantially closed, the shape of said interwindow bag being generally similar to the shape of the interwindow space between said inner and outer windows, but the size of said bag being slightly larger than said interwindow space, whereby said bag when inflated presses against the top, bottom and side trim surfaces between said inner and outer windows to block air flows through said window arrangement.
Claim 2
Dependent Claim
181 words
In a wall of a headed building exposed to winter cold and winds an air leakage inhibiting heat-transfer minimizing winterized window arrangement comprising (1) a verticallyslideable two-sash glazed inner window of conventional wooden doUble-hung type, permanently built into said wall, (2) a seasonal, conveniently removable and replaceable, single sash, glazed outer window element of so-called ''''storm window'''' type, (3) a transparent and clear air-tight inter-window bag of flexible plastic positioned in between the doublehung sash and said storm window, and (4) an inflation valve connected to said window bag for inflating of said bag to a low pressure and for subsequently sealing said, said window valve being positioned to permit inflation with said double hung window substantially closed, the shape of said interwindow bag being generally similar to the shape of the interwindow space between said inner and outer windows, but the size of said bag being slightly larger than said interwindow space, whereby said bag when inflated presses against the top, bottom and side trim surfaces between said inner and outer windows to block air flows through said window arrangement.
Claim 3
Dependent Claim
58 words
A window arrangement according to claim 1, wherein said valve is of a rubbery material of such wall thickness and diameter as to seal when kinked and wherein said bag comprises a patch applied on its exterior surface adjacent said valve and forming a pocket into which said tubing can be tucked to maintain it in kinked condition.
Claim 4
Dependent Claim
89 words
A window arrangement according to claim 1 wherein said valve is attached to a portion of said bag opposite an extreme cross-member of one of said double hung sashes so as to permit access thereto when said sash is only very slightly open, and wherein at least the portion of said bag which lies against said extreme cross member is sufficiently stiff and non-adherent to permit closure of said sash after the bag is inflated and sealed, without pinching said bag between said extreme cross-member and the adjacent trim.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |