US3336154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Testing apparatus and method
Assignee: Unisys Corp
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Filing: 1963-12-20
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Granted: 1967-08-15
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Expires: 1983-12-20
Abstract
No abstract record available.
Inventors
- 👤 Paul E Oberg
- 👤 Sidney M Rubens
- 👤 Charles H Tolman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:56
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/12; G01R33/18; C; C23; C23C; C23C14/00; C23C14/22; C23C14/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A METHOD OF GENERATING A DEPOSITED-LAYER ELEMENT HAVING A DESIRED MAGNETOSTRICTION, COMPRISING THE STEPS OF: PLACING A TEST SUBSTRATE IN A DEPOSITED-LAYER MAGNETOSTRICTIVE-ALLOY ELEMENT GENERATING ENVIRONMENT; INITIATING THE GENERATION PROCESS OF SAID ELEMENT UPON SAID TEST SUBSTRATE; APPLYING CYCLICALLY VARYING TENSILE AND COMPRESSIVE STRESSES TO SAID ELEMENT DURING ITS GENERATION; APPLYING AN AC DRIVE FIELD TO SAID ELEMENT; DETECTING THE SWITCHING FIELD CAUSED BY THE MAGNETIZATION OF SAID ELEMENT AS GENERATED BY SAID AC DRIVE FIELD; GENERATING FROM SAID DETECTED SWITCHING FIELD AN OUTPUT SIGNAL WHOSE SIGNAL TRACE IS A FUNCTION OF SAID AC DRIVE FIELD AND OF SAID ALTERNATE CYCLES OF TENSILE AND COMPRESSIVE STRESSES; MONITORING SAID OUTPUT SIGNAL; AND, CONTROLLING SAID ELEMENT''S GENERATION PROCESS BY MONITORING SAID OUTPUT SIGNAL WAVEFORM DURING SAID APPLICATION OF SAID AC DRIVE FIELD AND SAID CYCLICALLY VARIABLE TENSILE AND COMPRESSIVE STRESSES, TO ACHIEVE A PREDETERMINED OUTPUT SIGNAL WAVEFORM INDICATING THAT SAID ELEMENT IS IN SAID DESIRED MAGNETOSTRICTIVE CONDITION.
Claim 2
Independent Claim
155 words
A METHOD OF GENERATING A DEPOSITED-LAYER ELEMENT HAVING A DESIRED MAGNETOSTRICTION, COMPRISING THE STEPS OF: PLACING A TEST SUBSTRATE IN A DEPOSITED-LAYER MAGNETOSTRICTIVE-ALLOY ELEMENT GENERATING ENVIRONMENT; INITIATING THE GENERATION PROCESS OF SAID ELEMENT UPON SAID TEST SUBSTRATE; APPLYING CYCLICALLY VARYING TENSILE AND COMPRESSIVE STRESSES TO SAID ELEMENT DURING ITS GENERATION; APPLYING AN AC DRIVE FIELD TO SAID ELEMENT; DETECTING THE SWITCHING FIELD CAUSED BY THE MAGNETIZATION OF SAID ELEMENT AS GENERATED BY SAID AC DRIVE FIELD; GENERATING FROM SAID DETECTED SWITCHING FIELD AN OUTPUT SIGNAL WHOSE SIGNAL TRACE IS A FUNCTION OF SAID AC DRIVE FIELD AND OF SAID ALTERNATE CYCLES OF TENSILE AND COMPRESSIVE STRESSES; MONITORING SAID OUTPUT SIGNAL; AND, CONTROLLING SAID ELEMENT''S GENERATION PROCESS BY MONITORING SAID OUTPUT SIGNAL WAVEFORM DURING SAID APPLICATION OF SAID AC DRIVE FIELD AND SAID CYCLICALLY VARIABLE TENSILE AND COMPRESSIVE STRESSES, TO ACHIEVE A PREDETERMINED OUTPUT SIGNAL WAVEFORM INDICATING THAT SAID ELEMENT IS IN SAID DESIRED MAGNETOSTRICTIVE CONDITION.
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) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |