US3837191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety lock device for windows
Assignee: Individual
•
Filing: 1973-06-13
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Granted: 1974-09-24
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Expires: 1993-06-13
Abstract
Abstract A safety lock device that can be assembled with existing household windows that have sliding upper and lower sashes and a latch mounted on the sashes. The device consists of a hollow member secured to one sash so as to overlie the latch and permit access to the latch only through a side opening in the hollow member and a cover or slide member telescopically mounted on the hollow member for movement to a position blocking the latch access opening. Provision is made for locking the slide in this position.
Inventors
- 👤 L Soiderer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/02; E05C3/04; E05C3/041; E05C3/046; Y; Y10; Y10S; Y10S70/00; Y10S70/58; Y10T; Y10T292/00; Y10T292/79; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5146; Y10T70/515; Y10T70/554
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
152 words
A safety lock device for a window having sliding upper and lower sashes with registering cross rails secured by a latch, said device comprising a hollow stationary member adapted to be attached in a fixed position to one of said cross rails at a position adjacent said latch, said member being formed to provide access to said latch, a movable cover member comprising a slide slideably supported by said stationary member for movement between latch covering and withdrawn positions, said cover member blocking access to said latch in the covering position thereof and enabling access to said latch in the withdrawn position thereof, said cover and stationary members having holes therein which are in registry when said cover member is in said covering position, said holes being adapted to receive a padlock or the like so as to secure said cover member in its covering position with respect to said stationary member.
Claim 2
Dependent Claim
152 words
A safety lock device for a window having sliding upper and lower sashes with registering cross rails secured by a latch, said device comprising a hollow stationary member adapted to be attached in a fixed position to one of said cross rails at a position adjacent said latch, said member being formed to provide access to said latch, a movable cover member comprising a slide slideably supported by said stationary member for movement between latch covering and withdrawn positions, said cover member blocking access to said latch in the covering position thereof and enabling access to said latch in the withdrawn position thereof, said cover and stationary members having holes therein which are in registry when said cover member is in said covering position, said holes being adapted to receive a padlock or the like so as to secure said cover member in its covering position with respect to said stationary member.
Claim 3
Dependent Claim
18 words
A safety lock device according to claim 1 wherein said slide is telescopically supported within said hollow member.
Claim 4
Dependent Claim
43 words
A safety lock device according to claim 1 wherein said stationary member further includes slot means on its front side located generally horizontally along said one cross rail and enabling manual manipulation of said latch when said slide is in the withdrawn position.
Claim 5
Dependent Claim
76 words
A safety lock device according to claim 1 wherein said stationary member includes a base section having screw holes for attachment to the upper surface of said cross rail, said member also having holes in its top side which are vertically aligned with said screw holes so as to provide access thereto when said slide is in the withdrawn position and to preclude access to said screw holes when said slide is in the covering position.
Claim 6
Dependent Claim
54 words
A safety lock device according to claim 4 wherein said stationary member is generally rectangular in cross section and has slot means in the front side thereof providing access to said latch in the withdrawn position of said slide, said member having an opening in the rear side thereof into which said latch projects.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |