US3341835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice detector
Assignee: Emerson Process Management Ltd
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Filing: 1964-11-05
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Granted: 1967-09-12
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Expires: 1984-11-05
Abstract
No abstract record available.
Inventors
- 👤 Frank D Werner
- 👤 Earl A Grindheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:13
CPC Classifications
B; B64; B64D; B64D15/00; B64D15/20; G; G01; G01W; G01W1/00; G01W1/14; G08; G08B; G08B19/00; G08B19/02; G01N; G01N2291/00; G01N2291/02; G01N2291/025; G01N2291/0251
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
AN ICE DETECTOR COMPRISING A NODAL SUPPORT FORMING A DIVIDING SURFACE, A VIBRATING ELEMENT HAVING A NODE OF VIBRATION WHEN IT IS RESONATELY VIBRATED, THE NODAL SUPPORT BEING ATTACHED TO SAID VIBRATING ELEMENT SUBSTANTIALLY AT SAID NODE OF VIBRATION AND FORMING AT LEAST SUBSTANTIALLY THE ENTIRE SUPPORT OF SAID VIBRATING ELEMENT, SAID VIBRATING ELEMENT HAVING REAR AND FRONT PORTIONS, EACH PORTION EXTENDING AWAY FROM SAID NODAL SUPPORT, SAID ELEMENT BEING CAPABLE OF BEING LOCATED BY SAID SUPPORT WITH AT LEAST A PART OF THE FRONT PORTION POSITIONED IN A ZONE WHEREIN ICE MAY ACCUMMLATE THEREON, VIBRATING MEANS MOUNTED ADJACENT THE REAR PORTION FOR EXCITING THE VIBRATING ELEMENT INTO RESONANT VIBRATION, AND MEANS FOR SENSING A SHIFT OF THE RESONANT FREQUENCY OF VIBRATION OF SAID VIBRATING ELEMENT RESULTING FROM A CHANGE OF MASS OF SAID VIBRATING ELEMENT DUE TO ICE ACCUMMLATING THEREON.
Claim 2
Dependent Claim
141 words
AN ICE DETECTOR COMPRISING A NODAL SUPPORT FORMING A DIVIDING SURFACE, A VIBRATING ELEMENT HAVING A NODE OF VIBRATION WHEN IT IS RESONATELY VIBRATED, THE NODAL SUPPORT BEING ATTACHED TO SAID VIBRATING ELEMENT SUBSTANTIALLY AT SAID NODE OF VIBRATION AND FORMING AT LEAST SUBSTANTIALLY THE ENTIRE SUPPORT OF SAID VIBRATING ELEMENT, SAID VIBRATING ELEMENT HAVING REAR AND FRONT PORTIONS, EACH PORTION EXTENDING AWAY FROM SAID NODAL SUPPORT, SAID ELEMENT BEING CAPABLE OF BEING LOCATED BY SAID SUPPORT WITH AT LEAST A PART OF THE FRONT PORTION POSITIONED IN A ZONE WHEREIN ICE MAY ACCUMMLATE THEREON, VIBRATING MEANS MOUNTED ADJACENT THE REAR PORTION FOR EXCITING THE VIBRATING ELEMENT INTO RESONANT VIBRATION, AND MEANS FOR SENSING A SHIFT OF THE RESONANT FREQUENCY OF VIBRATION OF SAID VIBRATING ELEMENT RESULTING FROM A CHANGE OF MASS OF SAID VIBRATING ELEMENT DUE TO ICE ACCUMMLATING THEREON.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |