Patent US3218531A successfully refreshed from Google Patents.
US3218531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Local and remote control system for motor controlled equipment
Assignee: Johnson Controls International Inc
•
Filing: 1962-06-06
•
Granted: 1965-11-16
•
Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 Carleton C Smith
- 👤 John J Pozorski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:54
CPC Classifications
H; H02; H02P; H02P1/00; H02P1/02; H02P1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A CONTROL SYSTEM FOR ELECTRO-RESPONSIVE MEANS LOCATED IN SPACED RELATION TO A REMOTE CONTROL CENTER AND HAVING A COAL CONTROL CENTER, (A) A CONTROL-SIGNAL LEAD INTERCONNECTED BETWEEN THE REMOTE CONTROL CENTER AND THE LOCAL CONTROL CENTER FOR TRANSMISSION OF A CONTROL SIGNAL FOR OPERATION OF SAID ELECTRORESPONSIVE MEANS, (B) INDICATING MEANS AT THE REMOTE CONTROL CENTER CONNECTED TO SAID CONTROL-SIGNAL LEAD, (C) A LOCATION-CONTROL MEANS AT SAID LOCAL CONTROL CENTER TO SELECTIVELY CONNECT THE ELECTRORESPONSIVE MEANS FOR REMOTE CONTROL AND FOR LOCAL CONTROL, AND (D) FEEDBACK SIGNAL MEANS PROVIDED AT THE LOCAL CONTROL CENTER AND HAVING A FIRST POSITION AND A SECOND POSITION AND SELECTIVELY CONNECTED BY THE LOCATIONCONTROL MEANS TO THE CONTROL-SIGNAL LEAD TO ENERGIZE SAID INDICATING MEANS IN ONE MANNER IN ACCORDANCE WITH THE STATUS OF THE ELECTRORESPECTIVE MEANS WHEN IN SAID FIRST POSITION AND THE SETTING OF SAID LOCATION-CONTROL MEANS AND THE STATUS OF THE ELECTRORESPONSIVE MEANS.
Claim 2
Dependent Claim
151 words
IN A CONTROL SYSTEM FOR ELECTRO-RESPONSIVE MEANS LOCATED IN SPACED RELATION TO A REMOTE CONTROL CENTER AND HAVING A COAL CONTROL CENTER, (A) A CONTROL-SIGNAL LEAD INTERCONNECTED BETWEEN THE REMOTE CONTROL CENTER AND THE LOCAL CONTROL CENTER FOR TRANSMISSION OF A CONTROL SIGNAL FOR OPERATION OF SAID ELECTRORESPONSIVE MEANS, (B) INDICATING MEANS AT THE REMOTE CONTROL CENTER CONNECTED TO SAID CONTROL-SIGNAL LEAD, (C) A LOCATION-CONTROL MEANS AT SAID LOCAL CONTROL CENTER TO SELECTIVELY CONNECT THE ELECTRORESPONSIVE MEANS FOR REMOTE CONTROL AND FOR LOCAL CONTROL, AND (D) FEEDBACK SIGNAL MEANS PROVIDED AT THE LOCAL CONTROL CENTER AND HAVING A FIRST POSITION AND A SECOND POSITION AND SELECTIVELY CONNECTED BY THE LOCATIONCONTROL MEANS TO THE CONTROL-SIGNAL LEAD TO ENERGIZE SAID INDICATING MEANS IN ONE MANNER IN ACCORDANCE WITH THE STATUS OF THE ELECTRORESPECTIVE MEANS WHEN IN SAID FIRST POSITION AND THE SETTING OF SAID LOCATION-CONTROL MEANS AND THE STATUS OF THE ELECTRORESPONSIVE MEANS.
References Cited (Backward Citations)
US1557065A
Cited
US2254285A
Cited
US2307315A
Cited
US2372061A
Cited
US2939054A
Cited
US2994860A
Cited
US3039029A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |