Patent US3779588A successfully refreshed from Google Patents.
US3779588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding panel lock
Assignee: Individual
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Filing: 1972-09-01
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Granted: 1973-12-18
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Expires: 1992-09-01
Abstract
Abstract A pair of sliding panels, sashes or other closure means provided with locking means which is mounted on one closure and is operable when said closure is in closed or stationary position to releasably engage and lock the other sliding closure means to prevent said other sliding closure means from being moved to open or partly open position.
Inventors
- 👤 R Raymon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:06
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/08; E05B65/0864; Y; Y10; Y10S; Y10S292/00; Y10S292/46; Y10T; Y10T292/00; Y10T292/08; Y10T292/0863
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
374 words
Locking mechanism for one panel of a pair of panels, wherein one of said panels is openable and the other of said panels is immovable in the direction of opening movement of said openable panel, said immovable panel being provided with a frame having vertical and horizontal members and connecting means for said members, said connecting means extending through the face of said vertical frame member and being exteriorally accessible for manipulation, said locking mechanism including a base and said base comprising a pair of plates, said plates being angularly related to one another and the said angle being substantially the same as the angle between the face and edge of said vertical frame member, one of said plates being fixed to the edge of the vertical frame member of said movable panel which is adjacent to said openeable panel and the other of said plates being fixed to and extending over a part of the adjacent face of the said vertical frame member and extending over a part of the face of said upper horizontal frame member of said immovable panel, said second mentioned plate being fixed to said vertical and horizontal frame members adjacent to but downwardly removed from said connecting means, the upper horizontal edge of said second mentioned plate being below a horizontal plane extending midway between the longitudinal edges of said upper horizontal frame member of the immovable panel, said openable panel being provided with a frame comprising horizontal and vertical frame members and the upper horizontal frame member thereof being provided with stop means positioned thereon midway between the longitudinal edges thereof and in the same horizontal plane as a horizontal plane extending through the plane midway between the horizontal edges of said upper horizontal frame member of the immovable panel, said locking mechanism including means retractable into and projectible from said locking mechanism, said locking mechanism being fixed to said first mentioned plate providing a portion thereof extending above the upper edge of said second mentioned plate, said retractable and projectible locking means being aligned with said stop means and said locking means when in projected position being co-active with said stop means of said openable panel to lock said panel in closed position against opening movement.
Claim 2
Dependent Claim
374 words
Locking mechanism for one panel of a pair of panels, wherein one of said panels is openable and the other of said panels is immovable in the direction of opening movement of said openable panel, said immovable panel being provided with a frame having vertical and horizontal members and connecting means for said members, said connecting means extending through the face of said vertical frame member and being exteriorally accessible for manipulation, said locking mechanism including a base and said base comprising a pair of plates, said plates being angularly related to one another and the said angle being substantially the same as the angle between the face and edge of said vertical frame member, one of said plates being fixed to the edge of the vertical frame member of said movable panel which is adjacent to said openeable panel and the other of said plates being fixed to and extending over a part of the adjacent face of the said vertical frame member and extending over a part of the face of said upper horizontal frame member of said immovable panel, said second mentioned plate being fixed to said vertical and horizontal frame members adjacent to but downwardly removed from said connecting means, the upper horizontal edge of said second mentioned plate being below a horizontal plane extending midway between the longitudinal edges of said upper horizontal frame member of the immovable panel, said openable panel being provided with a frame comprising horizontal and vertical frame members and the upper horizontal frame member thereof being provided with stop means positioned thereon midway between the longitudinal edges thereof and in the same horizontal plane as a horizontal plane extending through the plane midway between the horizontal edges of said upper horizontal frame member of the immovable panel, said locking mechanism including means retractable into and projectible from said locking mechanism, said locking mechanism being fixed to said first mentioned plate providing a portion thereof extending above the upper edge of said second mentioned plate, said retractable and projectible locking means being aligned with said stop means and said locking means when in projected position being co-active with said stop means of said openable panel to lock said panel in closed position against opening movement.
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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |