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Publication numberUS2925862 A
Publication typeGrant
Publication dateFeb 23, 1960
Filing dateMar 8, 1957
Priority dateMar 14, 1956
Publication numberUS 2925862 A, US 2925862A, US-A-2925862, US2925862 A, US2925862A
InventorsKristen Sundby
Original AssigneeKristen Sundby
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Means for attaching an additional plastic window pane to a window frame or sash
US 2925862 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)


Kehs rE/v SUNDB y tCS MEANS FOR ATTACHING AN ADDITIONAL PLASTIC WINDOW PANE TO A WINDOW FRAME R SASH The present invention relates to means for attaching an additional, plastic window pane to a window frame or sash.

Many problems arise when an additional window pane is to be used in cooperation with an existing single window pane, as the distance between the panes should not be too great so as to prevent a too strong circulation of the air between the panes. If the single window sash is in close engagement with the frame it will according to the foregoing be advantageous to attach the additional window pane to an existing sash. If the sash does not abut tightly against the frame it would be suitable to attach the additional pane to the frame at the smallest possible distance from the single window pane.

Windows are known which are built up of small and rigid plastic panes with reinforced edges which are attached to the outside of a framework by means of resilient clips which grip around the edges. Such windows, in addition to the disadvantage that the panes only may have small dimensions owing to the risk of breaking the pane when attaching and removing it as the clips make it impossible to remove a large pane, have the disadvantage that no closure is obtained along all the edge of the pane.

The object of the present invention is to provide an additional window pane which is inexpensive, unbreakable and may have any size, and which may be attached in. a simple way to a window frame or sash. The pane should possibly be flexible to enable it to be rolled up for storage in the summer time when not in use.

According to the present invention a plastic foil is em ployed as an additional window pane, said foil being provided along all its sides with one part of a tongueand-groove closure of flexible material, preferably of transparent plastic, while the other part of the closure is adapted to be attached to the window frame or sash, in such a way that the additional window pane may be atatent tached or removed by pressing the two parts of the closure together or by pulling them out of engagement with each other.

Two embodiments of the invention will be described more in detail with reference to the drawing, in which:

Fig. 1 is a sectional view through a part of an additional window pane for attachment to a window sash according to one embodiment of the invention.

Fig. 2 is a sectional view through a part of an ad ditional window pane for attachment to a window frame according to another embodiment of the invention.

Fig. 3 is a front elevation of a window frame to which the invention has been applied.

In Fig. 1 an additional window pane 1 of plastic foil is provided along all its sides with one part 2 of a tongueand-groove closure of transparent plastic. The other part 3 of the closure is attached by means of a batten, for instance of wood, and screws to the window sash 5. When cleaning the permanent window pane or for removing the additional window pane in the summer time, the two parts of the closure are pulled out of engagement. For storing in the summer the plastic foil with its part 2 of the closure is rolled up and put away in a drawer or a locker.

In Fig. 2 the plastic foil 1 and the closure part 2 have the same structure as in Fig. 1. The closure part 3 is in this case angular so as to be attached by means of a batten 4, for instance of wood, and screws to the window frame 6.

I claim:

In combination, a separable tongue-and-groove joining strip comprising a tongue supporting part and a groove supporting part, one of said parts being secured to a window structure, the other of said parts being flexible and generally defining a closed polygon, and flexible plastic foil of corresponding polygonal shape secured to said other part of said strip, the part secured by said window structure and the other part secured to said plastic foil defining a complete seal to entirely heal the window opening or a partial seal to readily permit ventilation through the window opening.

References Cited in the file of this patent UNITED STATES PATENTS 2,297,729 Thomas Oct. 6, 1942 2,399,169 Crawford Apr. 30, 1946 2,504,204 Kiefer Apr. 18, 1950 2,646,117 Hodgins July 21, 1953 2,739,089 Hageltorn Sept. 17, 1953

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2297729 *Mar 16, 1940Oct 6, 1942Harry W ThomasScreen frame
US2399169 *Dec 18, 1944Apr 30, 1946Crawford Door CoDoor construction
US2504204 *Apr 22, 1946Apr 18, 1950Kiefer Augustine JohnFrame mounting for window sashes and other closures
US2646117 *Mar 31, 1949Jul 21, 1953Superduction IncStorm window structure
US2739089 *Sep 17, 1953Mar 20, 1956Svenska Aktiebolaget PolvaPlastic strips
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3186129 *May 15, 1962Jun 1, 1965Isora Illuminating Ceilings LtCeilings or walls
US3205628 *Oct 16, 1961Sep 14, 1965Barracudaverken AbFixing devices for ceiling forming sheets or foils
US3283804 *Mar 20, 1964Nov 8, 1966Yancey William HSnap on storm windows
US3373464 *Mar 30, 1965Mar 19, 1968Ausnit StevenStructure for anchoring flexible sheeting
US3987835 *Oct 29, 1974Oct 26, 1976Frank D. WernerDouble cord edge fastener
US3991806 *Dec 8, 1975Nov 16, 1976Temp-Rite, Inc.Storm window construction
US4249589 *Aug 30, 1979Feb 10, 1981Loeb Nackey SApparatus for mounting an environment controlling sheet
US4320609 *Feb 22, 1979Mar 23, 1982Hartwig-Hartoglass, Inc.Glazing fastener for mounting either rigid or flexible storm windows
US4441290 *Jan 8, 1982Apr 10, 1984Hartwig-Hartoglass, Inc.Glazing fastener for mounting either rigid or flexible storm windows
US4480676 *Sep 15, 1983Nov 6, 1984Solomon Victor JInsulation assembly
US4625479 *Jul 16, 1984Dec 2, 1986Donat Flamand Inc.Casing window
US6079473 *Mar 11, 1998Jun 27, 2000Ackerson, Ii; Wade A.Removable screen apparatus
US7266928Jul 6, 2004Sep 11, 2007Stasiak Jr James AGolf ball deflecting window cover
DE102006056253A1 *Nov 27, 2006May 29, 2008Dieter SchmidtPartial transparent surface e.g. display window, changing device, has frame fastening section for fastening frame element of transparent adjacent surface, and image carrier fixing section provided for fixing image carrier at frame element
EP0002330A1 *Nov 20, 1978Jun 13, 1979John Warwick HindleDouble-glazed window and method for its construction
U.S. Classification160/354, 52/203
International ClassificationE06B3/04, E06B3/28
Cooperative ClassificationE06B3/285
European ClassificationE06B3/28F