US3176221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test unit for aircraft liquid oxygen containers
Assignee: Consolidated Airborne Systems Inc
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Filing: 1960-09-06
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Granted: 1965-03-30
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Expires: 1980-09-06
Abstract
No abstract record available.
Inventors
- 👤 Stamler Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:38
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; B; B64; B64F; B64F5/00; B64F5/60; F17C2221/00; F17C2221/01; F17C2221/011; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/0161; F17C2223/03; F17C2223/033; F17C2250/00; F17C2250/04; F17C2250/0486; F17C2250/0495; F17C2260/00; F17C2260/01; F17C2260/015; F17C2260/03; F17C2260/035; F17C2260/038; F17C2270/00; F17C2270/01; F17C2270/0186; F17C2270/0189
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
A LIQUID OXYGEN CONVERTER TESTING APPARATUS COMPRISING: (A) A TRANSFORMER HAVING A PRIMARY WINDING AND TWO CONNECTED SECONDARY WINDINGS; (B) CIRCUIT MEANS CONNECTED TO ONE OF SAID SECONDARY WINDINGS AND INCLUDING A PLURALITY OF STANDARD CAPACITORS EACH HAVING A CAPACITANCE VALUE CORRESPONDING TO THE CAPACITANCE OF A CONVERTER TO BE TESTED, ONE OF SAID CAPACITORS BEING CONNECTED WITH ONE OF SAID SECONDARY WINDINGS; (C) TEST CONNECTOR MEANS CONNECTING SAID CIRCUIT MEANS TO THE OTHER OF SAID SECONDARY WINDINGS AND HAVING MEANS TO BE CONNECTED TO ONE OF A PLURALITY OF DIFFERENT-VOLUME LIQUID-OXYGEN CONVERTERS; (D) A ZERO-CENTER METER SYSTEM CONNECTING THE JUNCTION OF SAID SECONDARY WINDINGS WITH THE JUNCTION OF SAID CIRCUIT MEANS AND SAID TEST CONNECTOR MEANS AND READING IN PLUS AND MINUS VALUES; (E) VOLTAGE CONTROL MEANS CONNECTED TO SAID PRIMARY WINDINGS TO VARY THE VOLTAGE ACROSS EACH SECONDARY WINDINGS IN PROPORTIN TO THE OTHER; AND (F) SWITCHING MEANS FOR SELECTIVELY CHANGING THE CAPACITOR CONNECTED TO SAID SECONDARY WINDINGS, SAID SWITCHING MEANS BEING CONNECTED TO SAID VOLTAGE CONTROL MEANS FOR VARYING THE VOLTAGE ACROSS THE WINDINGS IN PROPORTION TO THE IMPEDANCE OF SAID STANDARD CAPACITOR.
Claim 2
Dependent Claim
186 words
A LIQUID OXYGEN CONVERTER TESTING APPARATUS COMPRISING: (A) A TRANSFORMER HAVING A PRIMARY WINDING AND TWO CONNECTED SECONDARY WINDINGS; (B) CIRCUIT MEANS CONNECTED TO ONE OF SAID SECONDARY WINDINGS AND INCLUDING A PLURALITY OF STANDARD CAPACITORS EACH HAVING A CAPACITANCE VALUE CORRESPONDING TO THE CAPACITANCE OF A CONVERTER TO BE TESTED, ONE OF SAID CAPACITORS BEING CONNECTED WITH ONE OF SAID SECONDARY WINDINGS; (C) TEST CONNECTOR MEANS CONNECTING SAID CIRCUIT MEANS TO THE OTHER OF SAID SECONDARY WINDINGS AND HAVING MEANS TO BE CONNECTED TO ONE OF A PLURALITY OF DIFFERENT-VOLUME LIQUID-OXYGEN CONVERTERS; (D) A ZERO-CENTER METER SYSTEM CONNECTING THE JUNCTION OF SAID SECONDARY WINDINGS WITH THE JUNCTION OF SAID CIRCUIT MEANS AND SAID TEST CONNECTOR MEANS AND READING IN PLUS AND MINUS VALUES; (E) VOLTAGE CONTROL MEANS CONNECTED TO SAID PRIMARY WINDINGS TO VARY THE VOLTAGE ACROSS EACH SECONDARY WINDINGS IN PROPORTIN TO THE OTHER; AND (F) SWITCHING MEANS FOR SELECTIVELY CHANGING THE CAPACITOR CONNECTED TO SAID SECONDARY WINDINGS, SAID SWITCHING MEANS BEING CONNECTED TO SAID VOLTAGE CONTROL MEANS FOR VARYING THE VOLTAGE ACROSS THE WINDINGS IN PROPORTION TO THE IMPEDANCE OF SAID STANDARD CAPACITOR.
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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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |