US3266302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Displacement measuring means
Assignee: Motors Liquidation Co
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Filing: 1965-06-09
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Granted: 1966-08-16
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Expires: 1985-06-09
Abstract
No abstract record available.
Inventors
- 👤 Elson B Spangler
- 👤 William J Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:13
CPC Classifications
G; G01; G01C; G01C7/00; G01C7/02; G01C7/04; G01M; G01M17/00; G01M17/007; G01M17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
MEANS FOR MEASURING THE EXTENT OF SURFACE UNDULATIONS OF AN OBJECT THROUGHOUT THE FREQUENCY RANGE OF THE UNDULATIONS WITH RESPECT TO A REFERENCE DIRECTION AND COMPRISING: SURFACE CONTACTING MEANS ADAPTED TO TRAVERSE AND MAINTAIN CONTACT WITH THE SURFACE OF THE OBJECT UNDER EXAMINATION, ACCELERATION RESPONSIVE MEANS ADAPTED TO BE CONNECTED WITH A VOLTAGE SOURCE FOR DEVELOPING AN OUTPUT SIGNAL VOLTAGE VARIABLE IN ACCORDANCE WITH ACCELERATION OF THE CONTACTING MEANS NORMALLY OF THE REFERENCE DIRECTION DUE TO SURFACE UNDULATIONS BELOW A PREDETERMINED FREQUENCY, FREQUENCY SELECTIVE COUPLING MEANS INTERPOSED BETWEEN THE ACCELERATION RESPONSIVE MEANS AND THE CONTACTING MEANS AND ADAPTED TO TRANSMIT ACCELERATION BELOW THE PREDETERMINED FREQUENCY AND TO ATTENTUATE ACCELERATION ABOVE THE PREDETERMINED FREQUENCY, INTEGRATING MEANS CONNECTED WITH THE ACCELERATION RESPONSIVE MENS RESPONSIVE TO THE OUTPUT SIGNAL VOLTAGE DEVELOPED THEREBY AND OPERATIVE TO PERFORM A DOUBLE INTEGRATION THEREOF AND DEVELOP AN OUTPUT SIGNAL VOLTAGE VARIABLE IN ACCORDANCE WITH THE EXTENT OF SURFACE UNDULATIONS OF THE OBJECT BELOW THE PREDETERMINED FREQUENCY,
Claim 2
Dependent Claim
159 words
MEANS FOR MEASURING THE EXTENT OF SURFACE UNDULATIONS OF AN OBJECT THROUGHOUT THE FREQUENCY RANGE OF THE UNDULATIONS WITH RESPECT TO A REFERENCE DIRECTION AND COMPRISING: SURFACE CONTACTING MEANS ADAPTED TO TRAVERSE AND MAINTAIN CONTACT WITH THE SURFACE OF THE OBJECT UNDER EXAMINATION, ACCELERATION RESPONSIVE MEANS ADAPTED TO BE CONNECTED WITH A VOLTAGE SOURCE FOR DEVELOPING AN OUTPUT SIGNAL VOLTAGE VARIABLE IN ACCORDANCE WITH ACCELERATION OF THE CONTACTING MEANS NORMALLY OF THE REFERENCE DIRECTION DUE TO SURFACE UNDULATIONS BELOW A PREDETERMINED FREQUENCY, FREQUENCY SELECTIVE COUPLING MEANS INTERPOSED BETWEEN THE ACCELERATION RESPONSIVE MEANS AND THE CONTACTING MEANS AND ADAPTED TO TRANSMIT ACCELERATION BELOW THE PREDETERMINED FREQUENCY AND TO ATTENTUATE ACCELERATION ABOVE THE PREDETERMINED FREQUENCY, INTEGRATING MEANS CONNECTED WITH THE ACCELERATION RESPONSIVE MENS RESPONSIVE TO THE OUTPUT SIGNAL VOLTAGE DEVELOPED THEREBY AND OPERATIVE TO PERFORM A DOUBLE INTEGRATION THEREOF AND DEVELOP AN OUTPUT SIGNAL VOLTAGE VARIABLE IN ACCORDANCE WITH THE EXTENT OF SURFACE UNDULATIONS OF THE OBJECT BELOW THE PREDETERMINED FREQUENCY,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |