US3208272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface roughness detector
Assignee: Individual
•
Filing: 1962-09-28
•
Granted: 1965-09-28
•
Expires: 1982-09-28
Abstract
No abstract record available.
Inventors
- 👤 Jr John B Hall
- 👤 James C Brady
- 👤 Staten B Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:45
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
APPARATUS FOR PRODUCING A PATTERN OF SURFACE ROUGHNESS OF A SPECIMEN COMPRISING: A NORMALLY BALANCED BRIDGE CIRCUIT HAVING A SOURCE OF POTENTIAL, SENSING MEANS OPERATOVELY CONNECTED TO SAID BRIDGE CIRCUIT TO TRAVERSE THE SURFACE AREA OF SAID SPECIMEN, SAID SENSING MEANS BEING VERTICALLY DEFLECTABLE IN RESPONSE TO ANY SPECIMEN SURFACE IRREGULARITIES ENCOUNTERED DURING SAID TRAVERSE WITH ANY VERTICAL DEFLECTION OF SAIS SENSING MEANS CAUSING A DETACHABLE UNBALANCE IN SAID NORMALLY BALANCED BRIDGE CIRCUIT, MEANS TO INDICATE SAID UNBALANCE AS A FUNCTION OF SAID SENSING MEANS DEFLECTION, MEANS TO CAUSE A PLURALITY OF MOMENTARY BREAKS IN SAID INDICATED SIGNAL, SAID BREAKS OCCURRING AT CALIBRATED INTERVALS AND CORRESPONDING TO SPECIFIC LOCATIONS OF SAID SENSING MEANS RELATIVE TO SPECIFIC DISTANCES AS TRAVERSED ALONG SAID SPECIMEN SURFACE AREA.
Claim 2
Dependent Claim
124 words
APPARATUS FOR PRODUCING A PATTERN OF SURFACE ROUGHNESS OF A SPECIMEN COMPRISING: A NORMALLY BALANCED BRIDGE CIRCUIT HAVING A SOURCE OF POTENTIAL, SENSING MEANS OPERATOVELY CONNECTED TO SAID BRIDGE CIRCUIT TO TRAVERSE THE SURFACE AREA OF SAID SPECIMEN, SAID SENSING MEANS BEING VERTICALLY DEFLECTABLE IN RESPONSE TO ANY SPECIMEN SURFACE IRREGULARITIES ENCOUNTERED DURING SAID TRAVERSE WITH ANY VERTICAL DEFLECTION OF SAIS SENSING MEANS CAUSING A DETACHABLE UNBALANCE IN SAID NORMALLY BALANCED BRIDGE CIRCUIT, MEANS TO INDICATE SAID UNBALANCE AS A FUNCTION OF SAID SENSING MEANS DEFLECTION, MEANS TO CAUSE A PLURALITY OF MOMENTARY BREAKS IN SAID INDICATED SIGNAL, SAID BREAKS OCCURRING AT CALIBRATED INTERVALS AND CORRESPONDING TO SPECIFIC LOCATIONS OF SAID SENSING MEANS RELATIVE TO SPECIFIC DISTANCES AS TRAVERSED ALONG SAID SPECIMEN SURFACE AREA.
References Cited (Backward Citations)
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Cited
US2633020A
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Cited
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Cited
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |