Patent US3789564A successfully refreshed from Google Patents.
US3789564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitary rigid edge channel for windows
Assignee: Individual
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Filing: 1972-01-18
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Granted: 1974-02-05
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Expires: 1992-01-18
Abstract
Abstract Windows for modern housing are usually supplied as one-piece glass panes having the edges set into a channel-shaped frame of relatively rigid material, usually of aluminum or rigid plastic. A simple channel construction for this purpose is described, together with a method of assembling it to the window pane, which greatly reduces the cost of both parts and assembly labor over the previous practice.
Inventors
- 👤 G Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:52
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/54; E06B3/5454
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A unitary, rigid, extruded U-channel frame member for window panels and the like, a. said frame member having two opposed upstanding wall members spaced apart a distance to firmly grip a panel edge inserted between said wall members, b. at least one of the inner sides of each of said opposed wall members being permanently surfaced with a continuous layer of soft plastic material firmly attached to the side wall and providing a substantial friction and sealing surface in contact with the corresponding opposed surfaces of a panel edge inserted into the channel of said frame member, c. said channel wall members having spreading lugs extending, near their top edges, away from a panel inserted in said channel frame.
Claim 2
Dependent Claim
119 words
A unitary, rigid, extruded U-channel frame member for window panels and the like, a. said frame member having two opposed upstanding wall members spaced apart a distance to firmly grip a panel edge inserted between said wall members, b. at least one of the inner sides of each of said opposed wall members being permanently surfaced with a continuous layer of soft plastic material firmly attached to the side wall and providing a substantial friction and sealing surface in contact with the corresponding opposed surfaces of a panel edge inserted into the channel of said frame member, c. said channel wall members having spreading lugs extending, near their top edges, away from a panel inserted in said channel frame.
Claim 3
Dependent Claim
36 words
The invention according to claim 1, said lugs extending as a continuation of the channel legs but spaced away from a panel inserted into the frame to permit application and release of a mechanical spreading member.
Claim 4
Dependent Claim
52 words
The invention according to claim 2, said lugs extending axially along the length of said channel frame member and having a re-entrant portion engagable by a pair of oppositely-disposed spreading wheels to spread said channel legs as said wheels move relative to the length of said channel member from end to end.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |