US3227370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature responsive control device
Assignee: Robertshaw Controls Co
•
Filing: 1963-05-10
•
Granted: 1966-01-04
•
Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Roy W Houser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:15
CPC Classifications
F; F23; F23N; F23N5/00; F23N5/02; F23N5/04; F23N5/047; G; G05; G05D; G05D23/00; G05D23/19; G05D23/275; G05D23/27535; G05D23/2754; H; H01; H01H; H01H35/00; H01H35/24; H01H35/40; H01H37/00; H01H37/02; H01H37/32; H01H37/52; F23N2225/00; F23N2225/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN A COMBINATION CONTROL HAVING A BODY WITH A PASSAGE FOR CONDUCTING FLUID FUEL FROM AN INLET TO AN OUTLET, A CONTROL VALVE IN THE PASSAGE MOVABLE BETWEEN OPEN AND CLOSED POSITIONS, A PRESSURE REGULATOR COMMUNICATING WITH THE PASSAGE BETWEEN THE CONTROL VALVE AND THE OUTLET FOR CONTROLLING THE RATE OF FLOW THROUGH THE PASSAGE WHEN THE CONTROL VALVE IS OPEN, A MAGNET SPACED FROM THE PRESSURE REGULATOR, A BIMETALLIC LEVER HAVING A FREE END MOVABLE IN RESPONSE TO TEMPERATURE CHANGES BETWEEN AND INOPERTATIVE POSITION IN ENGAGEMENT WITH THE MAGNET AND AN OPERATIVE POSITION SPACED FROM THE MAGNET, AND MEANS INCLUDING AN OPERATING LEVER OPERABLE UPON MOVEMENT OF THE BIMETALLIC LEVER FROM ITS INOPERATIVE TO OPERATIVE POSITION TO ACTUATE THE CONTROL VALVE TO ITS OPEN POSITION AND TO CAUSE THE PRESSURE REGULATOR TO VARY THE RATE OF FLOW THROUGH THE PASSAGE IN ACCORDANCE WITH TEMPERATURE CHANGES.
Claim 2
Dependent Claim
146 words
IN A COMBINATION CONTROL HAVING A BODY WITH A PASSAGE FOR CONDUCTING FLUID FUEL FROM AN INLET TO AN OUTLET, A CONTROL VALVE IN THE PASSAGE MOVABLE BETWEEN OPEN AND CLOSED POSITIONS, A PRESSURE REGULATOR COMMUNICATING WITH THE PASSAGE BETWEEN THE CONTROL VALVE AND THE OUTLET FOR CONTROLLING THE RATE OF FLOW THROUGH THE PASSAGE WHEN THE CONTROL VALVE IS OPEN, A MAGNET SPACED FROM THE PRESSURE REGULATOR, A BIMETALLIC LEVER HAVING A FREE END MOVABLE IN RESPONSE TO TEMPERATURE CHANGES BETWEEN AND INOPERTATIVE POSITION IN ENGAGEMENT WITH THE MAGNET AND AN OPERATIVE POSITION SPACED FROM THE MAGNET, AND MEANS INCLUDING AN OPERATING LEVER OPERABLE UPON MOVEMENT OF THE BIMETALLIC LEVER FROM ITS INOPERATIVE TO OPERATIVE POSITION TO ACTUATE THE CONTROL VALVE TO ITS OPEN POSITION AND TO CAUSE THE PRESSURE REGULATOR TO VARY THE RATE OF FLOW THROUGH THE PASSAGE IN ACCORDANCE WITH TEMPERATURE CHANGES.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |