Patent US3386467A successfully refreshed from Google Patents.
US3386467A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control and regulating system
Assignee: Robertshaw Controls Co
•
Filing: 1965-10-24
•
Granted: 1968-06-04
•
Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Jay R Katchka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/028; G05D16/20; G05D16/2093; G05D16/2095; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7782
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A FLOW CONTROL AND PRESSURE REGULATING SYSTEM, THE COMBINATION COMPRISING, A CASING HAVING INLET AND OUTLET MEANS, VALVE MEANS PIVOTALLY MOUNTED IN SAID CASING BETWEEN SAID INLET AND OUTLET MEANS, DIAPHRAGM MEANS CONNECTED TO SAID VALVE MEANS FOR MOVING THE SAME BETWEEN ON-OFF POSITION AND REGULATING POSITIONS, A BLEED LINE IN SAID CASING CONTROLLING AN OPERATING PRESSURE ON SAID DIAPHRAGM MEANS, MEANS CONTROLLING AND REGULATING SAID BLEED LINE TO VARY THE OPERATING PRESSURE ON SAID DIAPHRAGM MEANS WHEREBY SAID VALVE MEANS IS PIVOTED BETWEEN ON-OFF POSITIONS AND REGULATING POSITIONS, AND SPRING MEANS DISPOSED BETWEEN SAID VALVE MEANS AND SAID DIAPHRAGM MEANS TO STABILIZE MOVEMENT OF SAID VALVE MEANS.
Claim 2
Dependent Claim
109 words
IN A FLOW CONTROL AND PRESSURE REGULATING SYSTEM, THE COMBINATION COMPRISING, A CASING HAVING INLET AND OUTLET MEANS, VALVE MEANS PIVOTALLY MOUNTED IN SAID CASING BETWEEN SAID INLET AND OUTLET MEANS, DIAPHRAGM MEANS CONNECTED TO SAID VALVE MEANS FOR MOVING THE SAME BETWEEN ON-OFF POSITION AND REGULATING POSITIONS, A BLEED LINE IN SAID CASING CONTROLLING AN OPERATING PRESSURE ON SAID DIAPHRAGM MEANS, MEANS CONTROLLING AND REGULATING SAID BLEED LINE TO VARY THE OPERATING PRESSURE ON SAID DIAPHRAGM MEANS WHEREBY SAID VALVE MEANS IS PIVOTED BETWEEN ON-OFF POSITIONS AND REGULATING POSITIONS, AND SPRING MEANS DISPOSED BETWEEN SAID VALVE MEANS AND SAID DIAPHRAGM MEANS TO STABILIZE MOVEMENT OF SAID VALVE MEANS.
References Cited (Backward Citations)
US2704648A
Cited
US2333775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |