US3866203A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Audible signal apparatus
Assignee: Edwards Co Inc
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Filing: 1973-02-16
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Granted: 1975-02-11
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Expires: 1993-02-16
Abstract
Abstract Audible signal apparatus is provided for manifesting the release of a lock having oppositely disposed mounting flanges and a detent extending through one side of the lock subject to actuation upon an attempt to release the lock. Such apparatus includes an electromagnetic horn having a mounting bracket extending from one side of its housing and adapted for mounting over one of the flanges of the lock. The bracket contains a switch that is subject to actuation by movement of the detent of the lock to control the horn. The horn has a diaphragm disposed in a recessed portion of one side of the housing and a sounding box for the horn is formed by securing such side of the housing against a flat mounting surface with the sound directed from one end of the housing through the recess.
Inventors
- 👤 Charles Berns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:17
CPC Classifications
E; E05; E05B; E05B45/00; E05B45/06; G; G08; G08B; G08B3/00; G08B3/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
205 words
Audible signal apparatus for manifesting a retraction of a lock bolt comprising in combination: a. key actuated means for selectively retracting said lock bolt; b. lock housing means including therein said lock bolt and having oppositely disposed mounting flanges for securing said lock housing means on a planar surface; c. detent means extending through one side of said lock housing means and subject to movement in response to the retraction of said lock bolt; d. a shallow housing means for said audible signal apparatus whose major walls are substantially parallel and are coupled together by side walls and end walls; e. said shallow housing means including therein a horn having a diaphragm and an electromagnet for operating the diaphragm; f. said shallow housing means having a mounting bracket extending in a plane parallel to one major wall thereof and adapted for permitting said bracket to overlap a flange of the lock housing means and yet maintain a major wall of the shallow housing means in the plane of said planar surface to which said lock housing means is secured; and g. said bracket having a switch secured thereto in a position to be actuated when said detent is moved to energize said audible signal apparatus.
Claim 2
Dependent Claim
205 words
Audible signal apparatus for manifesting a retraction of a lock bolt comprising in combination: a. key actuated means for selectively retracting said lock bolt; b. lock housing means including therein said lock bolt and having oppositely disposed mounting flanges for securing said lock housing means on a planar surface; c. detent means extending through one side of said lock housing means and subject to movement in response to the retraction of said lock bolt; d. a shallow housing means for said audible signal apparatus whose major walls are substantially parallel and are coupled together by side walls and end walls; e. said shallow housing means including therein a horn having a diaphragm and an electromagnet for operating the diaphragm; f. said shallow housing means having a mounting bracket extending in a plane parallel to one major wall thereof and adapted for permitting said bracket to overlap a flange of the lock housing means and yet maintain a major wall of the shallow housing means in the plane of said planar surface to which said lock housing means is secured; and g. said bracket having a switch secured thereto in a position to be actuated when said detent is moved to energize said audible signal apparatus.
Claim 3
Dependent Claim
29 words
Audible signal apparatus according to claim 1 wherein said shallow housing means has a second bracket extending therefrom adapted for mounting over another flange of said lock housing means.
Claim 4
Dependent Claim
95 words
Audible signal apparatus according to claim 1 wherein one of said major walls and one of said end walls have a contiguous cutaway section for providing an opening wherein said diaphragm may be mounted; said diaphragm secured within said cutaway section of said one major wall and said one end wall and with a major planar portion of said diaphragm parallel to, but slightly recessed from, the plane of said one major wall for permitting the transmission of sound in a direction normal to the vibrating movement of said major planar portion of the diaphragm.
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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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |