Patent US3172026A successfully refreshed from Google Patents.
US3172026A
Expired / Lapsed
US
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Positional servo system of the digital comparator type
Assignee: Warner and Swasey Co
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Filing: 1961-03-23
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Granted: 1965-03-02
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Expires: 1981-03-23
Abstract
No abstract record available.
Inventors
- 👤 Ralph H Schuman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:39
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/27; G05B19/29; G05B19/291; G05B2219/00; G05B2219/30; G05B2219/43; G05B2219/43194
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
IN A POSITIONING SYSTEM COMPRISING A MOVABLE MEMBER, A MULTISPEED ACTUATING MEANS FOR MOVING SAID MEMBER FROM A POSITION ON ONE SIDE OF A DESTINATION POSITION TO THE DESTINATION POSITION, AND A COMPARATOR FOR COMPARING AN ELECTRICAL MANIFESTATION INDICATIVE OF A DESTINATION POSITION AN AN ELECTRICAL MANIFESTATION INDICATIVE OF THE ACTUAL POSITION OF SAID MEMBER AND FOR CONTROLLING SAID ACTUATING MEANS TO MOVE SAID MEMBER TOWARD SAID DESTINATION POSITION TO MAKE SAID MANIFESTATIONS CORRESPOND, SAID COMPARATOR HAVING A FIRST OUTPUT SIGNAL WHEN SAID ACTUATING MEMBER IS DISPLACED TO SAID ONE SIDE OF SAID DESTINATION AND A SECOND OUTPUT SIGNAL WHEN SAID MEMBER HAS ARRIVED AT SAID DESTINATION POSITION FROM ONE SIDE, DESTINATION SELECTING MEANS FOR SELECTIVELY APPLYING AN ELECTRICAL MANIFESTATION TO SAID COMPARATOR REPRESENTING A FINAL DESTINATION, POSITION INDICATING MEANS FOR APPLYING A MANIFESTATION TO SAID COMPARATOR REPRESENTING THE ACTUAL POSITION OF SAID MEMBER, CONTROL MEANS FOR SAID ACTUATING MEANS RESPONSIVE TO SAID COMPARATOR TO EFFECT OPERATION IN RESPONSE TO SAID FIRST OUTPUT SIGNAL AND STOP OPERATION IN RESPONSE TO SAID SECOND OUTPUT SIGNAL AND INCLUDING FIRST
Claim 2
Dependent Claim
177 words
IN A POSITIONING SYSTEM COMPRISING A MOVABLE MEMBER, A MULTISPEED ACTUATING MEANS FOR MOVING SAID MEMBER FROM A POSITION ON ONE SIDE OF A DESTINATION POSITION TO THE DESTINATION POSITION, AND A COMPARATOR FOR COMPARING AN ELECTRICAL MANIFESTATION INDICATIVE OF A DESTINATION POSITION AN AN ELECTRICAL MANIFESTATION INDICATIVE OF THE ACTUAL POSITION OF SAID MEMBER AND FOR CONTROLLING SAID ACTUATING MEANS TO MOVE SAID MEMBER TOWARD SAID DESTINATION POSITION TO MAKE SAID MANIFESTATIONS CORRESPOND, SAID COMPARATOR HAVING A FIRST OUTPUT SIGNAL WHEN SAID ACTUATING MEMBER IS DISPLACED TO SAID ONE SIDE OF SAID DESTINATION AND A SECOND OUTPUT SIGNAL WHEN SAID MEMBER HAS ARRIVED AT SAID DESTINATION POSITION FROM ONE SIDE, DESTINATION SELECTING MEANS FOR SELECTIVELY APPLYING AN ELECTRICAL MANIFESTATION TO SAID COMPARATOR REPRESENTING A FINAL DESTINATION, POSITION INDICATING MEANS FOR APPLYING A MANIFESTATION TO SAID COMPARATOR REPRESENTING THE ACTUAL POSITION OF SAID MEMBER, CONTROL MEANS FOR SAID ACTUATING MEANS RESPONSIVE TO SAID COMPARATOR TO EFFECT OPERATION IN RESPONSE TO SAID FIRST OUTPUT SIGNAL AND STOP OPERATION IN RESPONSE TO SAID SECOND OUTPUT SIGNAL AND INCLUDING FIRST
References Cited (Backward Citations)
US2489689A
Cited
US2537427A
Cited
US2727194A
Cited
US2840771A
Cited
US2909769A
Cited
US2943251A
Cited
US3011151A
Cited
US3045157A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |