US3282086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic pulse testing apparatus
Assignee: Automation Industries Inc
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Filing: 1963-08-29
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Granted: 1966-11-01
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 Lawrence W Mccorkindale
- 👤 James F Mcnulty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:15
CPC Classifications
G; G01; G01B; G01B17/00; G01B17/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
176 words
IN ULTRASONIC TESTING APPARATUS INCLUDING A PULSER CIRCUIT FOR PRODUCING ELECTRICAL DRIVING PULSES, AN ELECTROMECHANICAL TRANSDUCER CONNECTED TO RECEIVE SAID DRIVING PULSES, AND TRANSMIT ULTRASONIC VIBRATIONS CORRESPONDING THERETO INTO A TEST OBJECT, MEANS FOR RECEIVING ECHO PULSES FROM SAID OBJECT, AND INDICATING MEANS RESPONSIVE TO SAID PULSES, THE IMPROVEMENT WHEREIN SAID PULSER CIRCUIT COMPRISES: CAPACITOR MEANS; CHARGING CIRCUIT MEANS CONNECTING SAID CAPACITOR MEANS IN CHARGING RELATIONSHIP WITH A SOURCE OF CHARGING POTENTIAL; BYPASS MEANS CONNECTED TO PROVIDE A DISCHARGE PATH FROM SAID CAPACITOR MEANS HAVING A SUBSTANTIALLY OPEN CIRCUIT FIRST STATE AND A SUBSTANTIALLY CLOSED CIRCUIT SECOND STATE, SAID BYPASS MEANS BEING CHANGEABLE FROM SAID FIRST TO SAID SECOND STATE UPON ESTABLISHMENT OF A PRESELECTED POTENTIAL ACROSS SAID CAPACITOR MEANS TO PROVIDE SAID DISCHARGE PATH; LOAD IMPEDANCE MEANS CONNECTED IN SERIES WITH SAID CAPACITOR MEANS AND SAID SOURCE OF CHARGING POTENTIAL; RELATIVELY SLOW SWITCHING DIODE MEANS CONNECTED IN PARALLEL WITH SAID LOAD IMPEDANCE MEANS TO PROVIDE A DISCHARGE PATH FROM SAID CAPACITOR; SAID DRIVING PULSES BEING DERIVED FROM THE VOLTAGE DROP ACROSS SAID LOAD IMPEDANCE MEANS.
Claim 2
Dependent Claim
176 words
IN ULTRASONIC TESTING APPARATUS INCLUDING A PULSER CIRCUIT FOR PRODUCING ELECTRICAL DRIVING PULSES, AN ELECTROMECHANICAL TRANSDUCER CONNECTED TO RECEIVE SAID DRIVING PULSES, AND TRANSMIT ULTRASONIC VIBRATIONS CORRESPONDING THERETO INTO A TEST OBJECT, MEANS FOR RECEIVING ECHO PULSES FROM SAID OBJECT, AND INDICATING MEANS RESPONSIVE TO SAID PULSES, THE IMPROVEMENT WHEREIN SAID PULSER CIRCUIT COMPRISES: CAPACITOR MEANS; CHARGING CIRCUIT MEANS CONNECTING SAID CAPACITOR MEANS IN CHARGING RELATIONSHIP WITH A SOURCE OF CHARGING POTENTIAL; BYPASS MEANS CONNECTED TO PROVIDE A DISCHARGE PATH FROM SAID CAPACITOR MEANS HAVING A SUBSTANTIALLY OPEN CIRCUIT FIRST STATE AND A SUBSTANTIALLY CLOSED CIRCUIT SECOND STATE, SAID BYPASS MEANS BEING CHANGEABLE FROM SAID FIRST TO SAID SECOND STATE UPON ESTABLISHMENT OF A PRESELECTED POTENTIAL ACROSS SAID CAPACITOR MEANS TO PROVIDE SAID DISCHARGE PATH; LOAD IMPEDANCE MEANS CONNECTED IN SERIES WITH SAID CAPACITOR MEANS AND SAID SOURCE OF CHARGING POTENTIAL; RELATIVELY SLOW SWITCHING DIODE MEANS CONNECTED IN PARALLEL WITH SAID LOAD IMPEDANCE MEANS TO PROVIDE A DISCHARGE PATH FROM SAID CAPACITOR; SAID DRIVING PULSES BEING DERIVED FROM THE VOLTAGE DROP ACROSS SAID LOAD IMPEDANCE MEANS.
Claim 3
Dependent Claim
152 words
A PULSER CIRCUIT WHICH COMPRISES; CAPACITOR MEANS; FIRST IMPEDANCE MEANS IN SERIES WITH SAID CAPACITOR MEANS; MEANS CONNECTING SAID CAPACITOR MEANS AND FIRST IMPEDANCE MEANS IN SERIES RELATIONSHIP WITH A SOURCE OF CHARGING POTENTIAL; BYPASS MEANS CONNECTED IN PARALLEL WITH BOTH OF SAID CAPACITOR MEANS AND FIRST IMPEDANCE MEANS HAVING A SUBSTANTIALLY OPEN CIRCUIT FIRST STATE AND A SUBSTANTIALLY CLOSED CIRCUIT SECOND STATE, SAID BYPASS MEANS CHANGING FROM SAID FIRST TO SAID SECOND STATE UPON ESTABLISHMENT OF A PRESELECTED CHARGE POTENTIAL ACROSS SAID CAPACITOR MEANS TO PROVIDE A DISCHARGE PATH THEREFROM; LOAD IMPEDANCE MEANS AND FIRST DIODE MEANS CONNECTED IN SERIES, THE SERIES CIRCUIT BEING CONNECTED IN PARALLEL ACROSS SAID FIRST IMPEDANCE MEANS, SAID FIRST DIODE MEANS BEING POLARIZED TO CONDUCT CAPACITOR DISCHARGE CURRENT; SECOND DIODE MEANS IN PARALLEL WITH SAID FIRST IMPEDANCE MEANS AND POLARIZED TO CONDUCT CAPACITOR DISCHARGE CURRENT; WHEREBY A VOLTAGE PULSE IS PRODUCED FROM SAID LOAD IMPEDANCE MEANS.
Claim 4
Dependent Claim
152 words
A PULSER CIRCUIT WHICH COMPRISES; CAPACITOR MEANS; FIRST IMPEDANCE MEANS IN SERIES WITH SAID CAPACITOR MEANS; MEANS CONNECTING SAID CAPACITOR MEANS AND FIRST IMPEDANCE MEANS IN SERIES RELATIONSHIP WITH A SOURCE OF CHARGING POTENTIAL; BYPASS MEANS CONNECTED IN PARALLEL WITH BOTH OF SAID CAPACITOR MEANS AND FIRST IMPEDANCE MEANS HAVING A SUBSTANTIALLY OPEN CIRCUIT FIRST STATE AND A SUBSTANTIALLY CLOSED CIRCUIT SECOND STATE, SAID BYPASS MEANS CHANGING FROM SAID FIRST TO SAID SECOND STATE UPON ESTABLISHMENT OF A PRESELECTED CHARGE POTENTIAL ACROSS SAID CAPACITOR MEANS TO PROVIDE A DISCHARGE PATH THEREFROM; LOAD IMPEDANCE MEANS AND FIRST DIODE MEANS CONNECTED IN SERIES, THE SERIES CIRCUIT BEING CONNECTED IN PARALLEL ACROSS SAID FIRST IMPEDANCE MEANS, SAID FIRST DIODE MEANS BEING POLARIZED TO CONDUCT CAPACITOR DISCHARGE CURRENT; SECOND DIODE MEANS IN PARALLEL WITH SAID FIRST IMPEDANCE MEANS AND POLARIZED TO CONDUCT CAPACITOR DISCHARGE CURRENT; WHEREBY A VOLTAGE PULSE IS PRODUCED FROM SAID LOAD IMPEDANCE MEANS.
References Cited (Backward Citations)
US2398701A
Cited
US3074028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |