US4239268A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding door lock
Assignee: Individual
•
Filing: 1978-06-05
•
Granted: 1980-12-16
•
Expires: 1998-06-05
Abstract
Abstract A vertical edge of a sliding door has a cavity forming a housing for a bolt. One or two angle-shaped latch leaves are located at a side or opposite sides of the bolt, each leaf being pivotally mounted in the housing for swinging about an axis generally aligned with such door vertical edge. Outward sliding of the bolt swings the latch leaf or leaves outward to lock flanges on the leaf or leaves in a catch carried by a frame.
Inventors
- 👤 Harlan H. Rider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:51
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/08; E05B65/0858; Y; Y10; Y10S; Y10S292/00; Y10S292/46; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0803; Y10T292/081; Y10T292/1043; Y10T292/1075; Y10T292/1077; Y10T292/1079; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5173; Y10T70/5195; Y10T70/5199; Y10T70/5246; Y10T70/5248; Y10T70/5252
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
294 words
Locking mechanism for a closure member openable relative to a frame member, such members having respective normally registered apertures in corresponding edges thereof, said locking mechanism comprising: bolt means carried by one of the members and having an outer end portion movable through the member edge apertures between a projected position in which said bolt means bridges between the members and a retracted position in which the bolt means does not bridge between the members; an elongated latch leaf carried by the bolt-carrying member adjacent to the edge aperture of such member for swinging transversely of the length of said latch leaf through the member edge apertures and having an inner face normally disposed in the path of movement of said bolt means outer end portion, said latch leaf having a latch flange movable by swinging of said latch leaf from an unlocked position in which said latch flange is positioned inward of the face of the apertured edge of the bolt-carrying member to a locking position in which said flange is projected outward beyond the apertured edge of the bolt-carrying member and engages behind an edge of the aperture in the other member for locking the closure member to the frame member; pivot pin means mounting said latch leaf for swinging about and axis stationary relative to the bolt-carrying member, said pivot pin means being located inward of the face of the apertured edge of the bolt-carrying member; and means for moving said bolt means from retracted position to butt said outer end portion of said bolt means against said inner face of said latch leaf and swing said latch leaf latch flange to locking position and for moving said bolt means outer end portion to projected position bridging between the two members.
Claim 2
Dependent Claim
294 words
Locking mechanism for a closure member openable relative to a frame member, such members having respective normally registered apertures in corresponding edges thereof, said locking mechanism comprising: bolt means carried by one of the members and having an outer end portion movable through the member edge apertures between a projected position in which said bolt means bridges between the members and a retracted position in which the bolt means does not bridge between the members; an elongated latch leaf carried by the bolt-carrying member adjacent to the edge aperture of such member for swinging transversely of the length of said latch leaf through the member edge apertures and having an inner face normally disposed in the path of movement of said bolt means outer end portion, said latch leaf having a latch flange movable by swinging of said latch leaf from an unlocked position in which said latch flange is positioned inward of the face of the apertured edge of the bolt-carrying member to a locking position in which said flange is projected outward beyond the apertured edge of the bolt-carrying member and engages behind an edge of the aperture in the other member for locking the closure member to the frame member; pivot pin means mounting said latch leaf for swinging about and axis stationary relative to the bolt-carrying member, said pivot pin means being located inward of the face of the apertured edge of the bolt-carrying member; and means for moving said bolt means from retracted position to butt said outer end portion of said bolt means against said inner face of said latch leaf and swing said latch leaf latch flange to locking position and for moving said bolt means outer end portion to projected position bridging between the two members.
Claim 3
Dependent Claim
30 words
The locking mechanism defined in claim 1, including resilient means for biasing the latch leaf inward with its inner face butting against the outer end portion of the bolt means.
Claim 4
Dependent Claim
40 words
The locking mechanism defined in claim 1, in which the transverse width of the latch leaf and the bolt means are substantially equal, each of such widths being only slightly less than the transverse width of the member edge apertures.
Claim 5
Dependent Claim
26 words
The locking mechanism defined in claim 1, the swinging axis of the latch leaf being parallel and closely adjacent to the edge of the bolt-carrying member.
Claim 6
Dependent Claim
26 words
The locking mechanism defined in claim 1 or 4, the latch leaf being swingable through an angle of about 90 degrees relative to the bolt-carrying member.
Claim 7
Dependent Claim
27 words
The locking mechanism defined in claim 1, the bolt means being swingable about an axis stationary relative to the bolt-carrying member between its projected and retracted positions.
Claim 8
Dependent Claim
35 words
The locking mechanism defined in claim 6, the swinging axis of the bolt means being generally parallel to the swinging axis of the latch leaf and closely adjacent to the edge of the bolt-carrying member.
Claim 9
Dependent Claim
30 words
The locking mechanism defined in claim 6, the bolt means outer end portion being located inward of the face of the apertured edge of the bolt-carrying member in retracted position.
Claim 10
Dependent Claim
53 words
The locking mechanism defined in claim 6, 7 or 8, the bolt means including an arcuate rack portion concentric with the bolt means axis, and the moving means including a rotatable pinion engageable with the bolt means rack portion for swinging the bolt means outer end portion between its projected and retracted positions.
Claim 11
Dependent Claim
31 words
The locking mechanism defined in claim 9, in which the bolt means and the latch leaf have portions interengaged when the bolt means outer end portion is in its projected position.
Claim 12
Dependent Claim
35 words
The locking mechanism defined in claim 10, the bolt means arcuate rack portion being convex and the latch leaf having a concave portion shaped complementally to and engageable with the bolt means arcuate rack portion.
Claim 13
Dependent Claim
26 words
The locking mechanism defined in claim 6, 7 or 8, the bolt means and the latch leaf being swingable in opposite senses about their respective axes.
Claim 14
Dependent Claim
46 words
The locking mechanism defined in claim 1, the edge of the bolt-carrying member having a circular aperture and the latch leaf having a convex shank shaped complementary to an arc of such aperture and engageable therewith when the latch leaf latch flange is in locking position.
Claim 15
Dependent Claim
32 words
The locking mechanism defined in claim 1, the bolt means outer end portion engaging corresponding edge portions of the member apertures when the bolt means outer end portion is in projected position.
Claim 16
Dependent Claim
59 words
The locking mechanism defined in claim 1, in which one of the members carries a plurality of latch leaves each having a latch flange movable to a locking position spaced outward from an edge of such leaf-carrying member, and the bolt means is engageable with each of the latch leaves for moving the latch flanges to their locking positions.
Claim 17
Dependent Claim
30 words
The locking mechanism defined in claim 15, in which one of the members carries two latch leaves spaced apart, and the bolt means is located between the two latch leaves.
Claim 18
Dependent Claim
45 words
The locking mechanism defined in claim 15, including spaced pivot means mounting the latch leaves, respectively, for swinging away from each other and the bolt means being slidably received between said spaced pivot means and simultaneously engageable with the latch leaves for wedging them apart.
Claim 19
Dependent Claim
37 words
The locking mechanism defined in claim 13, in which the pivot means mount the latch leaves for swinging in opposite directions about substantially parallel axes and the bolt means is reciprocable transversely of the pivot means axes.
Claim 20
Dependent Claim
18 words
The locking mechanism defined in claim 17, including resilient means for biasing the latch leaves toward each other.
Claim 21
Dependent Claim
56 words
The locking mechanism defined in claim 1, in which the closure member and the frame member each include apertured plate means providing registering apertures, the latch leaf includes a shank portion having abutments facing each other and said latch leaf shank portion abutments snugly embrace said plate means when the latch flange is in locking position.
Claim 22
Dependent Claim
179 words
Locking mechanism for a closure member openable relative to a frame member, one of such members being a leaf-carrying member, comprising: a plurality of elongated latch leaves each including a latch flange and each being pivotally carried by the leaf-carrying member for swinging about an axis spaced lengthwise of such latch leaf from its latch flange and stationary relative to the latch leaf-carrying member, each latch leaf being swingable between a locking position in which its latch flange is projected outward beyond an edge of the leaf-carrying member and an unlocked position in which such latch flange is retracted to a position inward of the face of such edge; spaced pivot means mounting the latch leaves, respectively, for swinging away from each other; catch means carried by the other member and engageable by said latch flanges in their locking positions for locking the closure member to the frame member; and bolt means slidably received between said spaced pivot means and simultaneously engageable with said latch leaves for wedging them apart to engage said latch flanges with said catch means.
Claim 23
Dependent Claim
179 words
Locking mechanism for a closure member openable relative to a frame member, one of such members being a leaf-carrying member, comprising: a plurality of elongated latch leaves each including a latch flange and each being pivotally carried by the leaf-carrying member for swinging about an axis spaced lengthwise of such latch leaf from its latch flange and stationary relative to the latch leaf-carrying member, each latch leaf being swingable between a locking position in which its latch flange is projected outward beyond an edge of the leaf-carrying member and an unlocked position in which such latch flange is retracted to a position inward of the face of such edge; spaced pivot means mounting the latch leaves, respectively, for swinging away from each other; catch means carried by the other member and engageable by said latch flanges in their locking positions for locking the closure member to the frame member; and bolt means slidably received between said spaced pivot means and simultaneously engageable with said latch leaves for wedging them apart to engage said latch flanges with said catch means.
Claim 24
Dependent Claim
181 words
Locking mechanism for a closure member openable relative to a frame member comprising: two elongated latch leaves relatively spaced apart, each of said latch leaves including a latch flange and being pivotally carried by one of the members for swinging about an axis spaced lengthwise of such latch leaf from its latch flange and stationary relative to such latch leaf-carrying member, each of said latch leaves being swingable between a locking position in which said latch flange of such latch leaf is projected outward beyond an edge of such leaf-carrying member and an unlocked position in which such latch flange is retracted to a position inward of the face of such edge; catch means carried by the other member and engageable by both of said latch flanges in their locking positions for locking the closure member to the frame member; bolt means located between, movable relative to and engageable with said latch leaves for moving said latch leaves to engage said latch flanges with said catch means; and resilient means for biasing the latch leaves inward relative to said bolt means.
Claim 25
Dependent Claim
181 words
Locking mechanism for a closure member openable relative to a frame member comprising: two elongated latch leaves relatively spaced apart, each of said latch leaves including a latch flange and being pivotally carried by one of the members for swinging about an axis spaced lengthwise of such latch leaf from its latch flange and stationary relative to such latch leaf-carrying member, each of said latch leaves being swingable between a locking position in which said latch flange of such latch leaf is projected outward beyond an edge of such leaf-carrying member and an unlocked position in which such latch flange is retracted to a position inward of the face of such edge; catch means carried by the other member and engageable by both of said latch flanges in their locking positions for locking the closure member to the frame member; bolt means located between, movable relative to and engageable with said latch leaves for moving said latch leaves to engage said latch flanges with said catch means; and resilient means for biasing the latch leaves inward relative to said bolt means.
Claim 26
Dependent Claim
49 words
The locking mechanism defined in claim 25, the bolt means being movable between an unlocked position in which the bolt means is retracted to a position inward of the edge face of the leaf-carrying member and a locking position in which the bolt means projects outward beyond such edge.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-16 | 1984-06-16 | 1984-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-16 | 1988-06-16 | 1988-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-16 | 1992-06-16 | 1992-12-16 | $7700.00 | Window Closed / Lapsed |