US3340409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coded control apparatus
Assignee: Smith Meter Inc
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Filing: 1963-02-28
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Granted: 1967-09-05
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Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Walter L Probert
- 👤 Keith N Shade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:10
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/12; G05B19/14; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/7068; Y10T70/7073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN A CODED CONTROL UNIT, (A) AN ELECTRORESPONSIVE LOAD, (B) A FIRST ELECTRORESPONSIVE CONTROLLER HAVING SWITCHING MEANS CONNECTED IN SERIES WITH THE LOAD, (C) A SECOND ELECTRORESPONSIVE CONTROLLER HAVING SWITCHING MEANS CONNECTED IN SERIES WITH SAID FIRST ELECTRORESPONSIVE CONTROLLER, (D) A TWO POSITION SWITCH MEANS HAVING A FIRST POSITION ADAPTED TO CONNECT THE LOAD TO A SOURCE OF POWER AND A SECOND POSITION ADAPTED TO CONNECT THE SECOND ELECTRORESPONSIVE MEANS TO A SOURCE OF POWER, (E) A CODED CIRCUIT CONNECTED IN PARALLEL WITH THE FIRST ELECTRORESPONSIVE CONTROLLER AND INCLUDING A PLURALITY OF PARALLELED CONTROL LINES CONNECTED IN SERIES WITH SAID SECOND ELECTRORESPONSIVE CONTRLLER, (F) A CODED MEANS HAVING A PLURALITY OF CODE OPERATED MEANS, ONE IN EACH OF SAID CONTROL LINES FOR OPENING AND CLOSING THE CORRESPONDING LINE, AND (G) A PLURALITY OF SWITCH UNITS, EACH INCLUDING A PLURALITY OF NORMALLY CLOSED SWITCHES ONE IN EACH OF SAID CONTROL LINES AND ACTUATING MEANS FOR SELECTIVELY OPENING ONE OF SAID SWITCHES.
Claim 2
Dependent Claim
160 words
IN A CODED CONTROL UNIT, (A) AN ELECTRORESPONSIVE LOAD, (B) A FIRST ELECTRORESPONSIVE CONTROLLER HAVING SWITCHING MEANS CONNECTED IN SERIES WITH THE LOAD, (C) A SECOND ELECTRORESPONSIVE CONTROLLER HAVING SWITCHING MEANS CONNECTED IN SERIES WITH SAID FIRST ELECTRORESPONSIVE CONTROLLER, (D) A TWO POSITION SWITCH MEANS HAVING A FIRST POSITION ADAPTED TO CONNECT THE LOAD TO A SOURCE OF POWER AND A SECOND POSITION ADAPTED TO CONNECT THE SECOND ELECTRORESPONSIVE MEANS TO A SOURCE OF POWER, (E) A CODED CIRCUIT CONNECTED IN PARALLEL WITH THE FIRST ELECTRORESPONSIVE CONTROLLER AND INCLUDING A PLURALITY OF PARALLELED CONTROL LINES CONNECTED IN SERIES WITH SAID SECOND ELECTRORESPONSIVE CONTRLLER, (F) A CODED MEANS HAVING A PLURALITY OF CODE OPERATED MEANS, ONE IN EACH OF SAID CONTROL LINES FOR OPENING AND CLOSING THE CORRESPONDING LINE, AND (G) A PLURALITY OF SWITCH UNITS, EACH INCLUDING A PLURALITY OF NORMALLY CLOSED SWITCHES ONE IN EACH OF SAID CONTROL LINES AND ACTUATING MEANS FOR SELECTIVELY OPENING ONE OF SAID SWITCHES.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-04 | 1971-03-06 | 1971-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-04 | 1975-03-06 | 1975-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-04 | 1979-03-06 | 1979-09-05 | $7700.00 | Window Closed / Lapsed |