US3195319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for refrigeration and heat pump equipment
Assignee: Individual
•
Filing: 1963-01-29
•
Granted: 1965-07-20
•
Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Wolff Marie Tillitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:23
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/20; F25B2400/00; F25B2400/13; F25B2400/23; F25B2600/00; F25B2600/25; F25B2600/2509; Y; Y10; Y10S; Y10S62/00; Y10S62/17; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A CYCLIC SYSTEM INCLUDING A COMPRESSOR, A CONDENSER, A RECEIVER, A PRESSURE REDUCING DEVICE AND AN EVAPORATOR CONNECTED IN SEQUENCE THAT IMPROVEMENT WHICH COMPRISES A VALVE HAVING AN INLET PORT CONNECTED TO THE COMPRESSOR OUTLET, A FIRST OUTLET PORT CONNECTED TO THE CONDENSER INLET, A SECOND OUTLET PORT CONNECTED TO AN UPPER PART OF THE RECEIVER, A FIRST FLOWWAY IN THE VALVE BETWEEN THE INLET PORT AND FIRST OUTLET PORT, A FLOW-RESTRICTING MEMBER CARRIED BY A RECIPROCAL VALVE STEM TO AND FROM A POSITION RESTRICTING FLOW THROUGH SAID FIRST FLOWWAY, A SECOND FLOWWAY BETWEEN THE INLET PORT AND THE SECOND OUTLET PORT, A VALVE SEAT AROUND THE SECOND FLOWWAY, A VALVE CLOSURE MEMBER CARRIED BY THE VALVE STEM TO AND FROM VALVE CLOSING POSITION ON THE VALVE SEAT, SAID VALVE CLOSURE MEMBER BEING MOVED TO VALVE CLOSING POSITION AS THE FLOW-RESTRICTING MEMBER IS MOVED FROM FLOW-RESTRICTING POSITION; AN ACTUATOR, RESPONSIVE TO RECEIVER PRESSURE, OP-
Claim 2
Dependent Claim
155 words
IN A CYCLIC SYSTEM INCLUDING A COMPRESSOR, A CONDENSER, A RECEIVER, A PRESSURE REDUCING DEVICE AND AN EVAPORATOR CONNECTED IN SEQUENCE THAT IMPROVEMENT WHICH COMPRISES A VALVE HAVING AN INLET PORT CONNECTED TO THE COMPRESSOR OUTLET, A FIRST OUTLET PORT CONNECTED TO THE CONDENSER INLET, A SECOND OUTLET PORT CONNECTED TO AN UPPER PART OF THE RECEIVER, A FIRST FLOWWAY IN THE VALVE BETWEEN THE INLET PORT AND FIRST OUTLET PORT, A FLOW-RESTRICTING MEMBER CARRIED BY A RECIPROCAL VALVE STEM TO AND FROM A POSITION RESTRICTING FLOW THROUGH SAID FIRST FLOWWAY, A SECOND FLOWWAY BETWEEN THE INLET PORT AND THE SECOND OUTLET PORT, A VALVE SEAT AROUND THE SECOND FLOWWAY, A VALVE CLOSURE MEMBER CARRIED BY THE VALVE STEM TO AND FROM VALVE CLOSING POSITION ON THE VALVE SEAT, SAID VALVE CLOSURE MEMBER BEING MOVED TO VALVE CLOSING POSITION AS THE FLOW-RESTRICTING MEMBER IS MOVED FROM FLOW-RESTRICTING POSITION; AN ACTUATOR, RESPONSIVE TO RECEIVER PRESSURE, OP-
References Cited (Backward Citations)
US1288578A
Cited
US2986899A
Cited
US2954681A
Cited
US3082610A
Cited
US3060699A
Cited
US3103795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |