Patent US3776637A successfully refreshed from Google Patents.
Patent US3153338A successfully refreshed from Google Patents.
US3153338A
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Resonant sensing devices
Assignee: Individual
•
Filing: 1961-11-22
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Granted: 1964-10-20
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Expires: 1981-11-22
Abstract
No abstract record available.
Inventors
- 👤 Kleesattel Claus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:22
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/10; G01N; G01N3/00; G01N3/40; G01N3/405; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02827; Y; Y10; Y10S; Y10S73/00; Y10S73/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A RESONANT SENSING DEVICE FOR INDICATING THE SURFACE PROPERTIES OF A TEST PIECE, COMPRISING MECHANICAL RESONATING MEANS HAVING A CONTACT SURFACE WITH PROGRESSIVELY INCREASING CROSS-SECTIONAL AREAS, ELECTRICALLY ENERGIZED MEANS FOR EFFECTING VIBRATION OF SAID MECHANICAL RESONATING MEANS AT A RESONANT FREQUENCY OF THE LATTER, MEANS FOR HOLDING SAID CONTACT SURFACE OF THE MECHANICAL RESONATING MEANS IN STEADY CONTACT WITH THE TEST PIECE SO AS TO CAUSE PENETRATION INTO THE SURFACE OF THE LATTER AND THEREBY VARY THE RESONANT FREQUENCY OF SAID MECHANICAL RESONATING MEANS, AND MEANS INDICATING THE VARIATION OF THE RESONANT FREQUENCY RESULTING FROM SAID STEADY CONTACT AS A FUNCTION OF THE SURFACE PROPERTIES OF THE TEST PIECE.
Claim 2
Dependent Claim
109 words
A RESONANT SENSING DEVICE FOR INDICATING THE SURFACE PROPERTIES OF A TEST PIECE, COMPRISING MECHANICAL RESONATING MEANS HAVING A CONTACT SURFACE WITH PROGRESSIVELY INCREASING CROSS-SECTIONAL AREAS, ELECTRICALLY ENERGIZED MEANS FOR EFFECTING VIBRATION OF SAID MECHANICAL RESONATING MEANS AT A RESONANT FREQUENCY OF THE LATTER, MEANS FOR HOLDING SAID CONTACT SURFACE OF THE MECHANICAL RESONATING MEANS IN STEADY CONTACT WITH THE TEST PIECE SO AS TO CAUSE PENETRATION INTO THE SURFACE OF THE LATTER AND THEREBY VARY THE RESONANT FREQUENCY OF SAID MECHANICAL RESONATING MEANS, AND MEANS INDICATING THE VARIATION OF THE RESONANT FREQUENCY RESULTING FROM SAID STEADY CONTACT AS A FUNCTION OF THE SURFACE PROPERTIES OF THE TEST PIECE.
References Cited (Backward Citations)
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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) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |