Patent US2484350A successfully refreshed from Google Patents.
Patent US4105233A successfully refreshed from Google Patents.
US4105233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window and door lock
Assignee: Individual
•
Filing: 1977-08-10
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Granted: 1978-08-08
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Expires: 1997-08-10
Abstract
Abstract A lock for closures, having horizontally sliding panels, such as doors or windows, which is so constructed that one or two horizontally slidable closures may be opened partially to provide ventillation but to an extent insufficient to afford ingress to an intruder.
Inventors
- 👤 Virginius T. Levey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:24
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/08; E05B65/0888; Y; Y10; Y10S; Y10S292/00; Y10S292/46; Y10T; Y10T292/00; Y10T292/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
198 words
In combination with a closure including a horizontally elongated upright rectangular frame of inwardly opening channel-shape cross section having upright closure panels mounted therein for horizontal sliding movement toward and away from one another and a stationary panel mounted on and secured to an outer side of said frame intermediate of its ends and combining with said sliding panels for completely closing the frame when the sliding panels are located in the ends of the frame; a lock for said sliding panels comprising two rods having corresponding outer end portions engaging in top portions of the frame and resting on upper edges of said sliding panels, said rod portions having outer ends abutting the ends of the frame and being of a length somewhat greater than the horizontal length of the sliding panels, said rods having downwardly extending intermediate portions and horizontally extending inner end portions, said inner end portions terminating in slightly spaced apart relation to one another, and means retaining said inner end portions in alignment with one another to prevent any appreciable sliding movement of the rods toward one another, said intermediate portions defining stops for limiting movement of said sliding closures toward one another.
Claim 2
Dependent Claim
198 words
In combination with a closure including a horizontally elongated upright rectangular frame of inwardly opening channel-shape cross section having upright closure panels mounted therein for horizontal sliding movement toward and away from one another and a stationary panel mounted on and secured to an outer side of said frame intermediate of its ends and combining with said sliding panels for completely closing the frame when the sliding panels are located in the ends of the frame; a lock for said sliding panels comprising two rods having corresponding outer end portions engaging in top portions of the frame and resting on upper edges of said sliding panels, said rod portions having outer ends abutting the ends of the frame and being of a length somewhat greater than the horizontal length of the sliding panels, said rods having downwardly extending intermediate portions and horizontally extending inner end portions, said inner end portions terminating in slightly spaced apart relation to one another, and means retaining said inner end portions in alignment with one another to prevent any appreciable sliding movement of the rods toward one another, said intermediate portions defining stops for limiting movement of said sliding closures toward one another.
Claim 3
Dependent Claim
20 words
A window or door lock as in claim 1, said means comprising a sleeve slidably engaging said inner rod portions.
Claim 4
Dependent Claim
103 words
A window or door lock as in claim 2, a pin extending transversely through an intermediate portion of the sleeve, one of said inner rod portions having a slot opening outwardly of its terminal to receive the pin when the sleeve is rotated to align the pin with said slot, said slot being of a length to permit the sleeve to be slidably disengaged from the other rod whereby said inner rod portions can be swung out of alignment with one another for sliding the rods into partial overlapping relation to permit the sliding panels to be moved to a more open position.
Claim 5
Dependent Claim
24 words
A window or door lock as in claim 1, said intermediate portions being disposed at oblique angles to the end portions of the rods.
Claim 6
Dependent Claim
32 words
A window or door lock as in claim 1, said outer end portions of the rods providing abutments to prevent the inner panels from being lifted in the frame and disengaged therefrom.
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) | 1981-08-07 | 1982-02-06 | 1982-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-07 | 1986-02-06 | 1986-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-07 | 1990-02-06 | 1990-08-08 | $7700.00 | Window Closed / Lapsed |