Patent US3715537A successfully refreshed from Google Patents.
US3715537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge mounted microswitch with adjustable actuator pin mounted on adjacent leaf
Assignee: Hager C & Sons Hinge Manufacturing Co us
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Filing: 1971-08-27
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Granted: 1973-02-06
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Expires: 1991-08-27
Abstract
Abstract A hinge wherein the leaves are pivotally secured together on a pin, one of said leaves having an electric switch connected thereto which contacts cooperating means connected to the other leaf for sounding an alarm or activating a signal when the door is not in its closed position or to activate some means when the door is in its closed position.
Inventors
- 👤 F Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:02
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/08; H; H01; H01H; H01H3/00; H01H3/02; H01H3/16; H01H3/161; H01H3/162; E; E05; E05D; E05D11/00; E05D11/0081; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
140 words
In a hinge having two leaves pivotally secured together on a pin, each of said leaves having holes therein for receiving means for attaching said leaves to a door and to a frame, the improvement wherein each of said leaves has a separate opening therein of the same size, said openings being in registering relation to each other when said leaves are in their closed position, one of said leaves having electric switch means connected thereto in said opening adapted to cooperate with adjustable switch receiving means connected in said opening on said other leaf, one of said means having a movable portion therein normally biased toward said other means, said electric switch means being capable of being activated depending upon whether said electric switch means is in retracted contacting position with said switch receiving means on said other leaf.
Claim 2
Dependent Claim
140 words
In a hinge having two leaves pivotally secured together on a pin, each of said leaves having holes therein for receiving means for attaching said leaves to a door and to a frame, the improvement wherein each of said leaves has a separate opening therein of the same size, said openings being in registering relation to each other when said leaves are in their closed position, one of said leaves having electric switch means connected thereto in said opening adapted to cooperate with adjustable switch receiving means connected in said opening on said other leaf, one of said means having a movable portion therein normally biased toward said other means, said electric switch means being capable of being activated depending upon whether said electric switch means is in retracted contacting position with said switch receiving means on said other leaf.
Claim 3
Dependent Claim
140 words
In a hinge having two leaves pivotally secured together on a pin, each of said leaves having holes therein for receiving means for attaching said leaves to a door and to a frame, the improvement wherein each of said leaves has a separate opening therein of the same size, said openings being in registering relation to each other when said leaves are in their closed position, one of said leaves having electric switch means connected thereto in said opening adapted to cooperate with adjustable switch receiving means connected in said opening on said other leaf, one of said means having a movable portion therein normally biased toward said other means, said electric switch means being capable of being activated depending upon whether said electric switch means is in retracted contacting position with said switch receiving means on said other leaf.
Claim 4
Dependent Claim
140 words
In a hinge having two leaves pivotally secured together on a pin, each of said leaves having holes therein for receiving means for attaching said leaves to a door and to a frame, the improvement wherein each of said leaves has a separate opening therein of the same size, said openings being in registering relation to each other when said leaves are in their closed position, one of said leaves having electric switch means connected thereto in said opening adapted to cooperate with adjustable switch receiving means connected in said opening on said other leaf, one of said means having a movable portion therein normally biased toward said other means, said electric switch means being capable of being activated depending upon whether said electric switch means is in retracted contacting position with said switch receiving means on said other leaf.
Claim 5
Dependent Claim
44 words
The improvement set forth in claim 1, wherein said electric switch means biased toward said other leaf comprises a plunger mounted in said switch, said plunger normally extending inwardly of the surface adjacent to said plunger in a direction toward said other hinge leaf.
Claim 6
Dependent Claim
58 words
The improvement set forth in claim 2 wherein said plunger in said electric switch means contacts said adjustable means on said other leaf when said hinge is closed, but does not contact said means on said adjustable other leaf when said hinge is partially open, thereby establishing contact to activate a device when the hinge is partially open.
References Cited (Backward Citations)
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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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |