US3881331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device incorporating a lock case, an escutcheon and a door handle
Assignee: GKN Stenman AB
•
Filing: 1973-10-02
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Granted: 1975-05-06
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Expires: 1993-10-02
Abstract
Abstract A locking device incorporates a lock case, an escutcheon housing and a door handle. The lock case houses a spring bolt mechanism operable by the door handle and a dead bolt mechanism operable by a locking mechanism. The spring bolt and the dead bolt are separately latchable. The escutcheon housing contains a substantial part and preferably the whole of a lock cylinder mechanism for latching the spring bolt. The dead bolt mechanism is adapted to be actuated, at any rate from one side, by a key via lock cylinder mechanism or a tumbler lever mechanism. From the other side the dead bolt can be latched or released via the said tumbler lever mechanism, a separate lock cylinder mechanism or a handle. Said handle may also cooperate with the spring bolt via a separate mechanism contained in a second escutcheon housing. When the dead bolt is actuated by a tumbler lever mechanism a cover plate in the escutcheon housing preferably cooperates with the spring bolt mechanism so that it covers the key hole for the tumbler lever mechanism when the spring bolt is being latched.
Inventors
- 👤 Erik Rudolf Tranberg
- 👤 Nils Kaj Gunnar Rosenqvist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:02
CPC Classifications
E; E05; E05B; E05B59/00; E05B17/00; E05B17/14; E05B17/18; E05B65/00; E05B65/0032; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5226; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5496; Y10T70/5611; Y10T70/5757; Y10T70/5765; Y10T70/5805; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7955; Y10T70/7977
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
A locking device comprising: a lock case, an escutcheon housing and a door handle; the lock case including therein a spring bolt operable by a sectioned bar, said sectioned bar in a cooperative arrangement with the door handle; a cylinder lock mechanism to effectuate a locking of said spring bolt, said lock mechanism being substantially contained in the escutcheon housing; a dead lock mechanism including a dead bolt latchable separately from the spring bolt; and means in said escutcheon housing cooperating with said lock cylinder for releasing the door handle from the sectioned bar upon the latching of the spring bolt.
Claim 2
Dependent Claim
101 words
A locking device comprising: a lock case, an escutcheon housing and a door handle; the lock case including therein a spring bolt operable by a sectioned bar, said sectioned bar in a cooperative arrangement with the door handle; a cylinder lock mechanism to effectuate a locking of said spring bolt, said lock mechanism being substantially contained in the escutcheon housing; a dead lock mechanism including a dead bolt latchable separately from the spring bolt; and means in said escutcheon housing cooperating with said lock cylinder for releasing the door handle from the sectioned bar upon the latching of the spring bolt.
Claim 3
Dependent Claim
24 words
A locking device according to claim 1 wherein the escutcheon housing has an opening for a second locking mechanism adapted for the dead bolt.
Claim 4
Dependent Claim
21 words
A locking device according to claim 2 wherein the locking cylinder is positioned in a projecting portion of the escutcheon housing.
Claim 5
Dependent Claim
29 words
A locking device according to claim 1 wherein the lock cylinder is positioned offset from the axis of the sectioned bar level between said axis and the dead bolt.
Claim 6
Dependent Claim
80 words
A locking device according to claim 1, including means for an interconnection of the two lock mechanisms such that from one side, both the dead bolt and the spring bolt are releasable by actuation of the lock mechanism of the dead bolt, said interconnecting means being partly contained in a second escutcheon housing which is located on the opposite side of the door in relation to the escutcheon housing which houses the lock cylinder and being operable by said handle.
Claim 7
Dependent Claim
41 words
A locking device according to claim 5, characterized in that turning of the handle in one direction will cause, upon commencement of the turning movement, a releasing of the dead bolt and, upon further turning, a releasing of the spring bolt.
Claim 8
Dependent Claim
21 words
A locking device according to claim 5, wherein both escutcheon housings are of substantially the same length as the lock case.
Claim 9
Dependent Claim
36 words
A locking device according to claim 1, wherein the dead bolt is releasable from the side of the door provided with the escutcheon housing only after the spring bolt has been released or activated for release.
Claim 10
Dependent Claim
73 words
A locking device according to claim 8, wherein the dead bolt mechanism interacts with a tumbler lever mechanism which is operable by means of a key, the said key being insertable through a keyhole made in the escutcheon housing, the lock cylinder of the cylinder lock interacting with a means in the escutcheon housing arranged in one position to cover the keyhole of the dead lock so that a key cannot be inserted.
Claim 11
Dependent Claim
38 words
A locking device according to claim 9, wherein the said means comprise a cover plate which is arranged to cover the keyhole when the spring bolt is latched by releasing of the door handle from the sectioned bar.
Claim 12
Dependent Claim
58 words
A locking device according to claim 10, wherein the lock cylinder cooperating with means, displaceable in the escutcheon housing, interacts with the cover plate, said displaceable means also arranged to bring a driver into engagement or disengagement, respectively, with a recess provided in the sectioned bar for interconnection and releasing, respectively, of the door handle and sectioned bar.
References Cited (Backward Citations)
US2638770A
Cited
US3791180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |