Patent US4097689A successfully refreshed from Google Patents.
Patent US4432174A successfully refreshed from Google Patents.
US4432174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-supporting insulation element
Assignee: Geilinger AG
•
Filing: 1982-06-22
•
Granted: 1984-02-21
•
Expires: 2002-06-22
Abstract
Abstract A single foil is biaxially stretched on a frame for movement relative thereto by being secured intermittently to a single rubbing strip over a guide ledge. The rubbing strip is stretchable and movable lengthwise of the associated frame side. Torsional forces arising because of the one-sided loading of the frame by the stretched foil are taken up by the frame which is made with a torsionally rigid cross-section. The single foil can be clamped without creasing and in a manner which ensures freedom from creasing notwithstanding differences in the heat expansion of the foil and frame.
Inventors
- 👤 Paul Grether
- 👤 Kurt Brader
- 👤 Bruno Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:38
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6715
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
77 words
A self-supporting insulation element for a double-paned window, said element comprising a frame consisting of a torsionally rigid section member having a guide ledge on one side; at least one longitudinally expansive rubbing strip disposed in said guide ledge for movement relative to said frame; a single coated foil coaxially stretched over said frame in a plane; and a plurality of spots connecting said foil to said strip in offset relation to said plane towards said frame.
Claim 2
Dependent Claim
77 words
A self-supporting insulation element for a double-paned window, said element comprising a frame consisting of a torsionally rigid section member having a guide ledge on one side; at least one longitudinally expansive rubbing strip disposed in said guide ledge for movement relative to said frame; a single coated foil coaxially stretched over said frame in a plane; and a plurality of spots connecting said foil to said strip in offset relation to said plane towards said frame.
Claim 3
Dependent Claim
34 words
A self-supporting insulation element as set forth in claim 1 wherein said frame has a plurality of sides, each said side being bent in a curved manner in an unclamped position of said foil.
Claim 4
Dependent Claim
27 words
A self-supporting insulation element as set forth in claim 1 wherein said strip includes a plurality of separate elements each having at least one spot connected thereto.
Claim 5
Dependent Claim
20 words
A self-supporting insulation element as set forth in claim 1 wherein said frame is a peripherally closed hollow section member.
Claim 6
Dependent Claim
20 words
A self-supporting insulation element as set forth in claim 1 wherein said foil overlaps said frame outwardly beyond said spots.
Claim 7
Dependent Claim
43 words
A self-supporting insulation element as set forth in claim 1 wherein said frame includes a plurality of hollow section members and corner members, each corner member being engaged in and between two adjacent section members to permit perpendicular movement between said section members.
Claim 8
Dependent Claim
47 words
A self-supporting insulation element as set forth in claim 6 wherein movement of one of said adjacent sections relative to the other of said adjacent sections occurs coaxially with a spot at one end of said one section and coaxially along a longitudinal axis of said spots.
Claim 9
Dependent Claim
94 words
A self-supporting insulation element for a double-paned window, said element comprising a torsionally rigid frame having a plurality of sides, each said side having a guide extending longitudinally thereof; a plurality of rubbing strips, each said strip being disposed within a respective guide for relative longitudinal movement; a single coated foil biaxially stretched over said frame with a main portion disposed in a single plane between said sides; and a plurality of spots connecting said foil to said sides on one face of said frame in offset relation to said plane towards said frame.
Claim 10
Dependent Claim
94 words
A self-supporting insulation element for a double-paned window, said element comprising a torsionally rigid frame having a plurality of sides, each said side having a guide extending longitudinally thereof; a plurality of rubbing strips, each said strip being disposed within a respective guide for relative longitudinal movement; a single coated foil biaxially stretched over said frame with a main portion disposed in a single plane between said sides; and a plurality of spots connecting said foil to said sides on one face of said frame in offset relation to said plane towards said frame.
Claim 11
Dependent Claim
22 words
A self-supporting insulation element as set forth in claim 8 wherein said foil has a peripheral portion extending outwardly of said frame.
Claim 12
Dependent Claim
16 words
A self-supporting insulation element as set forth in claim 8 wherein said spots are adhesive spots.
References Cited (Backward Citations)
US1988964A
Cited
US2599410A
Cited
US2618333A
Cited
CH601592A5
Cited
US3929186A
Cited
US4203264A
Cited
GB2011985A
Cited
US4333284A
Cited
GB2051914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |