Patent US3267236A successfully refreshed from Google Patents.
US3267236A
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Overload relay with tamper proof reset mechanism
Assignee: Allen Bradley Co LLC
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Filing: 1964-08-24
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Granted: 1966-08-16
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Expires: 1984-08-24
Abstract
No abstract record available.
Inventors
- 👤 Robert E Walters
- 👤 Gerd C Boysen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:02
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/22; H01H73/30; H01H71/00; H01H71/74; H01H71/7427; H01H71/10; H01H71/12; H01H71/14; H01H71/16; H01H71/161
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN AN OVERLOAD RELAY, THE COMBINATION COMPRISING: SWITCH MEANS MOVABLE BETWEEN OPEN AND CLOSED POSITIONS; A RESET PLUNGER RECIPROCABLE BETWEEN EXTENDED AND DEPRESSED POSITIONS; A FIRST CAM MEMBER MOUNTED ON AND MOVABLE WITH THE PLUNGER AND HAVING A CAMMING LOBE WITH A RELATIVELY SHARP CREST; AND A SECOND CAM MEMBER OPERATIVELY CONNECTED TO THE SWITCH AND HAVING A CAMMING LOBE WITH A RELATIVELY SHARP CREST THAT IS DISPOSED AT AN INTERMEDIATE POINT IN THE PATH OF TRAVEL OF THE FIRST CAM MEMBER WITH THE PLUNGER, MOVEMENT OF THE PLUNGER FROM EXTENDED TOWARD DEPRESSED POSITION CAUSING THE FIRST CAM MEMBER TO MOVE INTO A CAMMING ENGAGEMENT WITH THE SECOND CAM MEMBER IN WHICH THE SECOND CAM MEMBER IS
Claim 2
Dependent Claim
117 words
IN AN OVERLOAD RELAY, THE COMBINATION COMPRISING: SWITCH MEANS MOVABLE BETWEEN OPEN AND CLOSED POSITIONS; A RESET PLUNGER RECIPROCABLE BETWEEN EXTENDED AND DEPRESSED POSITIONS; A FIRST CAM MEMBER MOUNTED ON AND MOVABLE WITH THE PLUNGER AND HAVING A CAMMING LOBE WITH A RELATIVELY SHARP CREST; AND A SECOND CAM MEMBER OPERATIVELY CONNECTED TO THE SWITCH AND HAVING A CAMMING LOBE WITH A RELATIVELY SHARP CREST THAT IS DISPOSED AT AN INTERMEDIATE POINT IN THE PATH OF TRAVEL OF THE FIRST CAM MEMBER WITH THE PLUNGER, MOVEMENT OF THE PLUNGER FROM EXTENDED TOWARD DEPRESSED POSITION CAUSING THE FIRST CAM MEMBER TO MOVE INTO A CAMMING ENGAGEMENT WITH THE SECOND CAM MEMBER IN WHICH THE SECOND CAM MEMBER IS
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |