US3341121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condition responsive control circuit and apparatus therefor
Assignee: Johnson Controls International Inc
•
Filing: 1965-01-13
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Granted: 1967-09-12
•
Expires: 1985-01-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Russell G Attridge
- 👤 John C Donovan
- 👤 Charles C Grimes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:55
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/24; G05D23/1927; G05D23/1928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A CONDITION RESPONSIVE CONTROLLER, COMPRISING AT LEAST THREE CONDITION SENSITIVE MEANS HAVING CHARACTERISTICS PROPORTIONAL TO THE SENSED CONDITION AND TWO OF WHICH ARE RAPID RESPONSE MEANS HAVING A SUBSTANTIALLY SHORTER TIME CONSTANT THAN THE OTHER ONE WHICH IS A RELATIVELY SLOW RESPONSE MEANS, MEANS TO MOUNT SAID SENSITIVE MEANS TO BE SUBJECTED TO ESSENTIALLY A SINGLE CONDITION WHICH TENDS TO VARY AND TO CORRESPONDINGLY VARY THE CHARACTERISTICS OF THE MEANS WITH CHANGES IN THE SENSED CONDITION, AND MEANS CONNECTING SAID MEANS IN A CONTROL CIRCUIT TO PROVIDE AN ADJUSTABLE PROPORTIONAL CONTROL ACTION WHEREIN THE TWO RAPID RESPONSE MEANS ARE CONNECTED IN OPPOSITION AND THE SLOW RESPONSE MEANS IS CONNECTED TO AID THE ONE RAPID RESPONSE MEANS TO PROVIDE A FIXED RESET OF THE RESPONSE POSITION OF THE TWO ELEMENTS HAVING THE RELATIVELY SHORT TIME CONSTANT.
Claim 2
Dependent Claim
135 words
A CONDITION RESPONSIVE CONTROLLER, COMPRISING AT LEAST THREE CONDITION SENSITIVE MEANS HAVING CHARACTERISTICS PROPORTIONAL TO THE SENSED CONDITION AND TWO OF WHICH ARE RAPID RESPONSE MEANS HAVING A SUBSTANTIALLY SHORTER TIME CONSTANT THAN THE OTHER ONE WHICH IS A RELATIVELY SLOW RESPONSE MEANS, MEANS TO MOUNT SAID SENSITIVE MEANS TO BE SUBJECTED TO ESSENTIALLY A SINGLE CONDITION WHICH TENDS TO VARY AND TO CORRESPONDINGLY VARY THE CHARACTERISTICS OF THE MEANS WITH CHANGES IN THE SENSED CONDITION, AND MEANS CONNECTING SAID MEANS IN A CONTROL CIRCUIT TO PROVIDE AN ADJUSTABLE PROPORTIONAL CONTROL ACTION WHEREIN THE TWO RAPID RESPONSE MEANS ARE CONNECTED IN OPPOSITION AND THE SLOW RESPONSE MEANS IS CONNECTED TO AID THE ONE RAPID RESPONSE MEANS TO PROVIDE A FIXED RESET OF THE RESPONSE POSITION OF THE TWO ELEMENTS HAVING THE RELATIVELY SHORT TIME CONSTANT.
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |