US3352489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermostatic mixing valve
Assignee: Individual
•
Filing: 1965-12-27
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Granted: 1967-11-14
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Coulombe Maurice
- 👤 Bureau Yvon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:41
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/13; G05D23/1306; G05D23/132; G05D23/134; G05D23/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A THERMOSTATIC MIXING VALVE COMPRISING A BLOCK HAVING HOT AND COLD LIQUID INLET PORTS, A CASING SURROUNDING SAID BLOCK, INLET TUBES EXTENDING THROUGH SAID CASING AND COMMUNICATING WITH SAID RESPECTIVE INLET PORTS, SAID BLOCK HAVING OPPOSITELY DISPOSED AXIALLY ALIGNED VALVES IN COMMUNICATION WITH SAID INLET PORTS AND OPENING INTO SAID CASING, A VALVE STEM SLIDABLE WITHIN SAID BLOCK AND EXTENDING THERETHROUGH AND CONNECTED TO THE TWO VALVES AT BOTH ENDS THEREOF, WHEREBY AXIAL MOVEMENT OF SAID VALVE STEM WILL OPEN ONE VALVE AND WILL CLOSE THE OTHER, A PRESSURE CHAMBER SURROUNDING THE MIDDLE PORTION SAID VALVE STEM AND MADE IN SAID BLOCK, A FLUID-TIGHT DIAPHRAGM SEPARATING SAID PRESSURE CHAMBER INTO TWO HALF-CHAMBERS, EACH INLET PORT COMMUNICATING WITH ITS ASSOCIATED HALF-CHAMBER FOR FEEDING FLUID FROM THE RESPECTIVE INLET PORTS TO SAID SEPARATE HALF-CHAMBERS, BLEEDING PASSAGEWAYS CONNECTING EACH HALFCHAMBER WITH SAID CASING, EACH BLEEDING PASSAGEWAY HAVING A VALVE SEAT, THE TWO SEATS BEING SPACEDLY
Claim 2
Dependent Claim
152 words
A THERMOSTATIC MIXING VALVE COMPRISING A BLOCK HAVING HOT AND COLD LIQUID INLET PORTS, A CASING SURROUNDING SAID BLOCK, INLET TUBES EXTENDING THROUGH SAID CASING AND COMMUNICATING WITH SAID RESPECTIVE INLET PORTS, SAID BLOCK HAVING OPPOSITELY DISPOSED AXIALLY ALIGNED VALVES IN COMMUNICATION WITH SAID INLET PORTS AND OPENING INTO SAID CASING, A VALVE STEM SLIDABLE WITHIN SAID BLOCK AND EXTENDING THERETHROUGH AND CONNECTED TO THE TWO VALVES AT BOTH ENDS THEREOF, WHEREBY AXIAL MOVEMENT OF SAID VALVE STEM WILL OPEN ONE VALVE AND WILL CLOSE THE OTHER, A PRESSURE CHAMBER SURROUNDING THE MIDDLE PORTION SAID VALVE STEM AND MADE IN SAID BLOCK, A FLUID-TIGHT DIAPHRAGM SEPARATING SAID PRESSURE CHAMBER INTO TWO HALF-CHAMBERS, EACH INLET PORT COMMUNICATING WITH ITS ASSOCIATED HALF-CHAMBER FOR FEEDING FLUID FROM THE RESPECTIVE INLET PORTS TO SAID SEPARATE HALF-CHAMBERS, BLEEDING PASSAGEWAYS CONNECTING EACH HALFCHAMBER WITH SAID CASING, EACH BLEEDING PASSAGEWAY HAVING A VALVE SEAT, THE TWO SEATS BEING SPACEDLY
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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |