Patent US3295368A successfully refreshed from Google Patents.
US3295368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical load cell
Assignee: WC DILLON & COMPANY Inc A CORP OF DE
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Filing: 1964-07-13
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Granted: 1967-01-03
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Expires: 1984-07-13
Abstract
No abstract record available.
Inventors
- 👤 Searle G Nevius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:41
CPC Classifications
G; G01; G01G; G01G3/00; G01G3/12; G01G3/15; G01L; G01L1/00; G01L1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
AN ELECTRICAL LOAD CELL INCLUDING, IN COMBINATION; FIRST AND SECOND INDUCTANCE WINDINGS; ARMATURE MEANS MOVABLE BETWEEN SAID INDUCTANCE WINDINGS IN RESPONSE TO A FORCE ON SAID CELL; WAVE GENERATING MEANS INCLUDING MEANS FOR PROVIDING A FIRST ALTERNATING WAVE FORM OF GIVEN FREQUENCY AND AMPLITUDE CONNECTED TO SAID FIRST INDUCTANCE WINDING, AND MEANS FOR PROVIDING A SECOND ALTERNATING WAVE FORM OF IDENTICAL FREQUENCY AND AMPLITUDE TO SAID FIRST ALTERNATING WAVE FORM BUT 180* OUT OF PHASE THEREWITH CONNECTED TO SAID SECOND INDUCTANCE WINDING TO EXCITE SAID FIRST AND SECOND INDUCTANCE WINDINGS WITH OUT OF PHASE WAVES SO THAT AN ELECTRICALLY NEUTRAL POINT IN SAID WINDINGS EXISTS WHEN SAID ARMATURE IS IN A GIVEN POSITION BETWEEN SAID WINDINGS, AND A VOLTAGE APPEARS AT SAID POINT WHEN SAID ARMATURE IS MOVED FROM SAID GIVEN POSITION TO CHANGE THE INDUCTANCE OF SAID FIRST INDUCTANCE WINDING RELATIVE TO SAID SECOND INDUCTANCE WINDING; AND A RESISTANCE NETWORK CONNECTED BETWEEN SAID NEUTRAL POINT AND GROUND TO ELECTRICALLY LOAD SAID INDUCTANCE WINDINGS SO THAT THE VARIATION OF CURRENT IN SAID RESISTANCE NETWORK IS MORE LINEAR WITH RESPECT TO MOVEMENT OF SAID ARMATURE THAN IN THE ABSENCE OF SAID RESISTANCE NETWORK.
Claim 2
Dependent Claim
192 words
AN ELECTRICAL LOAD CELL INCLUDING, IN COMBINATION; FIRST AND SECOND INDUCTANCE WINDINGS; ARMATURE MEANS MOVABLE BETWEEN SAID INDUCTANCE WINDINGS IN RESPONSE TO A FORCE ON SAID CELL; WAVE GENERATING MEANS INCLUDING MEANS FOR PROVIDING A FIRST ALTERNATING WAVE FORM OF GIVEN FREQUENCY AND AMPLITUDE CONNECTED TO SAID FIRST INDUCTANCE WINDING, AND MEANS FOR PROVIDING A SECOND ALTERNATING WAVE FORM OF IDENTICAL FREQUENCY AND AMPLITUDE TO SAID FIRST ALTERNATING WAVE FORM BUT 180* OUT OF PHASE THEREWITH CONNECTED TO SAID SECOND INDUCTANCE WINDING TO EXCITE SAID FIRST AND SECOND INDUCTANCE WINDINGS WITH OUT OF PHASE WAVES SO THAT AN ELECTRICALLY NEUTRAL POINT IN SAID WINDINGS EXISTS WHEN SAID ARMATURE IS IN A GIVEN POSITION BETWEEN SAID WINDINGS, AND A VOLTAGE APPEARS AT SAID POINT WHEN SAID ARMATURE IS MOVED FROM SAID GIVEN POSITION TO CHANGE THE INDUCTANCE OF SAID FIRST INDUCTANCE WINDING RELATIVE TO SAID SECOND INDUCTANCE WINDING; AND A RESISTANCE NETWORK CONNECTED BETWEEN SAID NEUTRAL POINT AND GROUND TO ELECTRICALLY LOAD SAID INDUCTANCE WINDINGS SO THAT THE VARIATION OF CURRENT IN SAID RESISTANCE NETWORK IS MORE LINEAR WITH RESPECT TO MOVEMENT OF SAID ARMATURE THAN IN THE ABSENCE OF SAID RESISTANCE NETWORK.
References Cited (Backward Citations)
US2643869A
Cited
GB704163A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |