Patent US3177428A successfully refreshed from Google Patents.
US3177428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase detector including capacitive averaging and mixing means
Assignee: Borg Warner Corp
•
Filing: 1959-10-30
•
Granted: 1965-04-06
•
Expires: 1979-10-30
Abstract
No abstract record available.
Inventors
- 👤 Arnold I Klayman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:31
CPC Classifications
G; G01; G01R; G01R25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
APPARATUS FOR MEASURING THE TIME DELAY BETWEEN TWO PERIODIC WAVES, COMPRISING ELECTRONIC MEANS RESPONSIVE TO SAID PERIOD WAVES TO PROVIDE A VOLTAGE SIGNAL WHICH IS ESTABLISHED UPON OCCURRENCE OF A GIVEN PHASE POSITION OF ONE OF SAID WAVES AND INTERRUPTED UPON OCCURRENCE OF THE LIKE PHASE POSITION OF THE OTHER OF SAID WAVES, A RESISTANCE-CAPACITANCE NETWORK IN CIRCUIT WITH SAID ELECTRONIC MEANS HAVING A CAPACITOR WHICH IS CHARGED BY SAID VOLTAGE SIGNAL THROUGH A GIVEN RESISTANCE AND DISCHARGED THROUGH SUBSTANTIALLY THE SAME RESISTANCE DURING THE PERIOD OF INTERRUPTION OF SAID SIGNAL, MIXING MEANS FOR AVERAGING THE MAXIMAL AND MINIMAL CHARGES ON SAID CAPACITOR, AND
Claim 2
Dependent Claim
104 words
APPARATUS FOR MEASURING THE TIME DELAY BETWEEN TWO PERIODIC WAVES, COMPRISING ELECTRONIC MEANS RESPONSIVE TO SAID PERIOD WAVES TO PROVIDE A VOLTAGE SIGNAL WHICH IS ESTABLISHED UPON OCCURRENCE OF A GIVEN PHASE POSITION OF ONE OF SAID WAVES AND INTERRUPTED UPON OCCURRENCE OF THE LIKE PHASE POSITION OF THE OTHER OF SAID WAVES, A RESISTANCE-CAPACITANCE NETWORK IN CIRCUIT WITH SAID ELECTRONIC MEANS HAVING A CAPACITOR WHICH IS CHARGED BY SAID VOLTAGE SIGNAL THROUGH A GIVEN RESISTANCE AND DISCHARGED THROUGH SUBSTANTIALLY THE SAME RESISTANCE DURING THE PERIOD OF INTERRUPTION OF SAID SIGNAL, MIXING MEANS FOR AVERAGING THE MAXIMAL AND MINIMAL CHARGES ON SAID CAPACITOR, AND
References Cited (Backward Citations)
US2370692A
Cited
US2499953A
Cited
US2492617A
Cited
US2626313A
Cited
US2513528A
Cited
US2563869A
Cited
US2514369A
Cited
US2774940A
Cited
GB703189A
Cited
US2877416A
Cited
US2758277A
Cited
US2877412A
Cited
US2921260A
Cited
US2918625A
Cited
US2957137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |