US3237150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic position indicator system
Assignee: Curtiss Wright Corp
•
Filing: 1961-02-24
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Granted: 1966-02-22
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Expires: 1981-02-24
Abstract
No abstract record available.
Inventors
- 👤 Kenneth H Beck
- 👤 William I Shepley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/88; G01S15/02; G01S15/06; G01S15/08; Y; Y10; Y10S; Y10S367/00; Y10S367/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A SYSTEM FOR COMPUTING THE UNKNOWN POSITION OF A FIRST OBJECT LOCATED IN AN ULTRASONIC WAVE TRANSMISSIVE MEDIUM HAVING A CHARACTERISTIC ULTRASONIC WAVE PROPAGATION VELOCITY APT TO VARY, SAID MEDIUM CONTAINING A SECOND OBJECT LOCATED AT A KNOWN POSITION, SAID SYSTEM COMPRISING TANSDUCER MEANS FOR TRANSMITTING AND RECEIVING ULTRASONIC WAVE SIGNALS, BEING LOCATED AT A BOUNDARY OF SAID MEDIUM AND TRANSMITTING SIGNALS VIA SAID MEDIUM TO BOTH OBJECTS AND RECEIVING ECHO SIGNALS FROM BOTH OBJECTS; PULSE GENERATING MEANS PRODUCING TWO SETS OF PULSE TYPE SIGNALS, A SIGNAL OF THE FIRST SET BRACKETING THE ROUND TRIP TRANSIT TIME OF AN ULTRASONIC SIGNAL BETWEEN THE TRANSDUCER MEANS AND SAID FIRST OBJECT, AND A SIGNAL OF THE OTHER SET BRACKETING THE ROUND TRIP TRANSIT TIME OF AN ULTRASONIC SIGNAL BETWEEN THE TRANSDUCER MEANS AND SAID SECOND OBJECT; TWO INTEGRATORS FOR RESPECTIVELY INTEGRATING SAID TWO PULSE TYPE SIGNAL SETS TO PRODUCE A FIRST AND A SECOND INTEGRATED VOLTAGE HAVING AMPLITUDES RESPECTIVELY PROPORTIONAL TO THE FIRST AND SECOND TRANSIT TIMES; A SHAFT POSITION SERVO-DIVIDER SYSTEM INCLUDING AN AMPLIFIER, A SERVO MOTOR RESPONSIVE TO SAID AMPLIFIER, AND A POTENTIOMETER HAVING A SLIDER DRIVEN BY SAID SERVO MOTOR, MEANS
Claim 2
Independent Claim
192 words
A SYSTEM FOR COMPUTING THE UNKNOWN POSITION OF A FIRST OBJECT LOCATED IN AN ULTRASONIC WAVE TRANSMISSIVE MEDIUM HAVING A CHARACTERISTIC ULTRASONIC WAVE PROPAGATION VELOCITY APT TO VARY, SAID MEDIUM CONTAINING A SECOND OBJECT LOCATED AT A KNOWN POSITION, SAID SYSTEM COMPRISING TANSDUCER MEANS FOR TRANSMITTING AND RECEIVING ULTRASONIC WAVE SIGNALS, BEING LOCATED AT A BOUNDARY OF SAID MEDIUM AND TRANSMITTING SIGNALS VIA SAID MEDIUM TO BOTH OBJECTS AND RECEIVING ECHO SIGNALS FROM BOTH OBJECTS; PULSE GENERATING MEANS PRODUCING TWO SETS OF PULSE TYPE SIGNALS, A SIGNAL OF THE FIRST SET BRACKETING THE ROUND TRIP TRANSIT TIME OF AN ULTRASONIC SIGNAL BETWEEN THE TRANSDUCER MEANS AND SAID FIRST OBJECT, AND A SIGNAL OF THE OTHER SET BRACKETING THE ROUND TRIP TRANSIT TIME OF AN ULTRASONIC SIGNAL BETWEEN THE TRANSDUCER MEANS AND SAID SECOND OBJECT; TWO INTEGRATORS FOR RESPECTIVELY INTEGRATING SAID TWO PULSE TYPE SIGNAL SETS TO PRODUCE A FIRST AND A SECOND INTEGRATED VOLTAGE HAVING AMPLITUDES RESPECTIVELY PROPORTIONAL TO THE FIRST AND SECOND TRANSIT TIMES; A SHAFT POSITION SERVO-DIVIDER SYSTEM INCLUDING AN AMPLIFIER, A SERVO MOTOR RESPONSIVE TO SAID AMPLIFIER, AND A POTENTIOMETER HAVING A SLIDER DRIVEN BY SAID SERVO MOTOR, MEANS
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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) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |