Patent US3249716A successfully refreshed from Google Patents.
US3249716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time delay device
Assignee: Allen Bradley Co LLC
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Filing: 1963-12-26
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Granted: 1966-05-03
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Expires: 1983-12-26
Abstract
No abstract record available.
Inventors
- 👤 John L Haydu
- 👤 Leland E Lawrence
- 👤 Donald V Zunft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:58
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/20; H01H50/86; H01H50/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
IN A TIMER RELAY ASSEMBLY COMPRISING A CONTACT ASSEMBLY HAVING A STATIONARY CONTACT, AND A MOVABLE CONTACT, AND SPRING BIAS MEANS ADAPTED TO URGE SAID MOVABLE CONTACT FROM A FIRST OPERATING POSITION TO A SECOND OPERATING POSITION RELATIVE TO SAID STATIONARY CONTACT, AND AN ELECTROMAGNETIC ACTUATOR INCLUDING A COIL AND A MAGNETIC PLUNGER MOVABLE RESPONSIVE TO ENERGIZATION OF SAID COIL; THE COMBINATION THEREWITH OF A LEVER ASSEMBLY INCLUDING A STATIONARY SUPPORT, A CONTACT ACTUATOR PRESENTING AN OPERATING ARM AND ARRANGED FOR MOVING SAID MOVABLE CONTACT FROM SAID FIRST TO SAID SECOND OPERATING POSITION, A FIRST CLASS LEVER PIVOTALLY MOUNTED INTERMEDIATE ITS ENDS ON SAID STATIONARY SUPPORT AND HAVING ONE END PIVOTALLY CONNECTED TO SAID ACTUATOR ARM AND ITS OPPOSITE END PROVIDING A LATCHING TONGUE, AND A LINKING LEVER HAVING ONE END PIVOTALLY CONNECTED TO SAID ACTUATGOR ARM AND THE OPPOSITE END THEREOF PIVOTALLY CONNECTED TO SAID STATIONARY SUPPORT, THE PIVOT POINTS OF SAID LINKING LEVER BEING SPACED FROM THOSE OF SAID FIRST CLASS LEVER TO ESTABLISH A LOCUS DEFINING A PARALLELOGRAM; PLUNGER ACTUATED, LEVER MEANS ADAPTED TO RESET SAID TIME
Claim 2
Dependent Claim
180 words
IN A TIMER RELAY ASSEMBLY COMPRISING A CONTACT ASSEMBLY HAVING A STATIONARY CONTACT, AND A MOVABLE CONTACT, AND SPRING BIAS MEANS ADAPTED TO URGE SAID MOVABLE CONTACT FROM A FIRST OPERATING POSITION TO A SECOND OPERATING POSITION RELATIVE TO SAID STATIONARY CONTACT, AND AN ELECTROMAGNETIC ACTUATOR INCLUDING A COIL AND A MAGNETIC PLUNGER MOVABLE RESPONSIVE TO ENERGIZATION OF SAID COIL; THE COMBINATION THEREWITH OF A LEVER ASSEMBLY INCLUDING A STATIONARY SUPPORT, A CONTACT ACTUATOR PRESENTING AN OPERATING ARM AND ARRANGED FOR MOVING SAID MOVABLE CONTACT FROM SAID FIRST TO SAID SECOND OPERATING POSITION, A FIRST CLASS LEVER PIVOTALLY MOUNTED INTERMEDIATE ITS ENDS ON SAID STATIONARY SUPPORT AND HAVING ONE END PIVOTALLY CONNECTED TO SAID ACTUATOR ARM AND ITS OPPOSITE END PROVIDING A LATCHING TONGUE, AND A LINKING LEVER HAVING ONE END PIVOTALLY CONNECTED TO SAID ACTUATGOR ARM AND THE OPPOSITE END THEREOF PIVOTALLY CONNECTED TO SAID STATIONARY SUPPORT, THE PIVOT POINTS OF SAID LINKING LEVER BEING SPACED FROM THOSE OF SAID FIRST CLASS LEVER TO ESTABLISH A LOCUS DEFINING A PARALLELOGRAM; PLUNGER ACTUATED, LEVER MEANS ADAPTED TO RESET SAID TIME
References Cited (Backward Citations)
US3019317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |