US3238525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating mechanism
Assignee: Wheelock Signals Inc
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Filing: 1962-01-19
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Granted: 1966-03-01
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Expires: 1982-01-19
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand F Humphreys
- 👤 John J Vitola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:31
CPC Classifications
G; G10; G10K; G10K1/00; G10K1/06; G10K1/062; G10K1/063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A BELL COMPRISING A GONG, A VERTICALLY MOVABLE STRIKER, GUIDE MEANS FOR DIRECTING THE STRIKER TOWARD AND AWAY FROM THE GONG, AN ELECTRICAL WINDING SURROUNDING THE GUIDE MEANS, A CORE ARMATURE FOR DISPLACING THE STRIKER TOWARD THE GONG WHEN SAID WINDING IS ENERGIZED, MEANS FOR LIMITING THE DISPLACEMENT OF THE STRIKER AWAY FROM THE GONG, A HERMETICALLY SEALED CAPSULE CONTAINING A PAIR OF CONTACTS, AT LEAST ONE OF WHICH IS MOVABLE INTO ENGAGEMENT WITH THE OTHER, AN ADDITIONAL MAGNETIC FORCE PRODUCING MEANS, SAID CONTACTS CONTROLLING THE ENERGIZATION OF SAID ELECTRICAL WINDING, SAID ADDITIONAL MAGNETIC FORCE PRODUCING MEANS CONTROLLING THE OPENING AND CLOSING OF SAID CONTACTS, AND MEANS CONTROLLED BY THE RECIPROCATING MOTION OF THE STRIKER FOR IMPARTING RELATIVE MOVEMENT BETWEEN THE SEALED CAPSULE CONTAINING THE CONTACTS AND THE SAID ADDITIONAL MAGNETIC FORCE PRODUCING MEANS, WHEREBY THE CONTACTS ENERGIZE THE WINDING WHEN THE STRIKER IS LOCATED FURTHER FROM THE GONG AND DEENERGIZE THE WINDING WHEN THE STRIKER IS LOCATED CLOSER TO THE GONG.
Claim 2
Dependent Claim
162 words
A BELL COMPRISING A GONG, A VERTICALLY MOVABLE STRIKER, GUIDE MEANS FOR DIRECTING THE STRIKER TOWARD AND AWAY FROM THE GONG, AN ELECTRICAL WINDING SURROUNDING THE GUIDE MEANS, A CORE ARMATURE FOR DISPLACING THE STRIKER TOWARD THE GONG WHEN SAID WINDING IS ENERGIZED, MEANS FOR LIMITING THE DISPLACEMENT OF THE STRIKER AWAY FROM THE GONG, A HERMETICALLY SEALED CAPSULE CONTAINING A PAIR OF CONTACTS, AT LEAST ONE OF WHICH IS MOVABLE INTO ENGAGEMENT WITH THE OTHER, AN ADDITIONAL MAGNETIC FORCE PRODUCING MEANS, SAID CONTACTS CONTROLLING THE ENERGIZATION OF SAID ELECTRICAL WINDING, SAID ADDITIONAL MAGNETIC FORCE PRODUCING MEANS CONTROLLING THE OPENING AND CLOSING OF SAID CONTACTS, AND MEANS CONTROLLED BY THE RECIPROCATING MOTION OF THE STRIKER FOR IMPARTING RELATIVE MOVEMENT BETWEEN THE SEALED CAPSULE CONTAINING THE CONTACTS AND THE SAID ADDITIONAL MAGNETIC FORCE PRODUCING MEANS, WHEREBY THE CONTACTS ENERGIZE THE WINDING WHEN THE STRIKER IS LOCATED FURTHER FROM THE GONG AND DEENERGIZE THE WINDING WHEN THE STRIKER IS LOCATED CLOSER TO THE GONG.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |