Patent US3226474A successfully refreshed from Google Patents.
US3226474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitance probe assembly
Assignee: Robertshaw Controls Co
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Filing: 1963-01-28
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Granted: 1965-12-28
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Lawrence T Garnett
- 👤 Jr Ralph L Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:59
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/226; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A CAPACITANCE PROBE ASSEMBLY OR THE LIKE COMPRISING A PROBE ROD, A HOLLOW GLAND BODY TELESCOPICALLY RECEIVING AN INTERMEDIATE PART OF SAID PROBE ROD WHEREBY SAID PROBE ROD EXTENDS BEYOND THE OPPOSITE ENDS OF SAID GLAND BODY, A PAIR OF INSULATORS CARRIED BY SAID PROBE ROD AND RADIALLY AND AXIALLY ENGAGING SAID GLAND BODY, SAID INSULATORS ELECTRICALLY INSULATING SAID PROBE ROD FROM SAID GLAND BODY AND MECHANICALLY CONSTRAINING SAID PROBE ROD, A PAIR OF THRUST WASHERS DISPOSED RESPECTIVELY AGAINST SAID INSULATORS, AND MEANS IMPOSING AN AXIAL FORCE ON SAID WASHERS TO PLACE SAID INSULATORS INTO AXIAL ENGAGEMENT WITH SAID GLAND BODY, SAID WASHERS BEING UNDERCUT ADJACENT SAID INSULATORS TO MINIMIZE TENSILE LOADS ON SAID INSULATORS.
Claim 2
Dependent Claim
115 words
A CAPACITANCE PROBE ASSEMBLY OR THE LIKE COMPRISING A PROBE ROD, A HOLLOW GLAND BODY TELESCOPICALLY RECEIVING AN INTERMEDIATE PART OF SAID PROBE ROD WHEREBY SAID PROBE ROD EXTENDS BEYOND THE OPPOSITE ENDS OF SAID GLAND BODY, A PAIR OF INSULATORS CARRIED BY SAID PROBE ROD AND RADIALLY AND AXIALLY ENGAGING SAID GLAND BODY, SAID INSULATORS ELECTRICALLY INSULATING SAID PROBE ROD FROM SAID GLAND BODY AND MECHANICALLY CONSTRAINING SAID PROBE ROD, A PAIR OF THRUST WASHERS DISPOSED RESPECTIVELY AGAINST SAID INSULATORS, AND MEANS IMPOSING AN AXIAL FORCE ON SAID WASHERS TO PLACE SAID INSULATORS INTO AXIAL ENGAGEMENT WITH SAID GLAND BODY, SAID WASHERS BEING UNDERCUT ADJACENT SAID INSULATORS TO MINIMIZE TENSILE LOADS ON SAID INSULATORS.
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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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |