US3254670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Controller indicator and controller indicating system
Assignee: Robertshaw Controls Co
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Filing: 1963-11-15
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Granted: 1966-06-07
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Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
- 👤 Louis M Puster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:05
CPC Classifications
F; F01; F01L; F01L1/00; F15; F15B; F15B5/00; G; G01; G01D; G01D5/00; G01D5/42; F01L2710/00; F01L2710/006; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8326
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A CONTROL MEANS COMPRISING: CASING MEANS HAVING A SUPPLY PORT, A TRANSMITTER PORT, A VENT PORT, A CONTROL PORT, A SUPPLY PORT CAVITY CONNECTED TO SAID SUPPLY PORT, A TRANSMITTER PORT CAVITY CONNECTED TO SAID TRANSMITTER PORT, A SUPPLY RESTRICTOR PASSAGEWAY CONTROLLING SUPPLY FLUID FLOW FROM SAID SUPPLY PORT TO SAID TRANSMITTER PORT, A VENT PORT CAVITY CONNECTED TO SAID VENT PORT, A CONTROL PORT CAVITY CONNECTED TO SAID CONTROL PORT; TRANSMITTER PORT PRESSURE RESPONSIVE MEANS SEPARATING SAID TRANSMITTER PORT CAVITY AND SAID VENT PORT CAVITY; CONTROL PORT CAVITY SURE RESPONSIVE MEANS SEPARATING SAID CONTROL PORT CAVITY AND SAID SUPPLY PORT CAVITY; VENT VALVE PRESSURE RESPONSIVE MECHANICALLY BY SAID TRANSMITTER PORT PRESSURE RESPONSIVE MEANS AND CONNECTING AND DISCONNECTING SAID VENT PORT CAVITY AND SAID CONTROL CAVITY; AN INDICATOR; AN INDICATOR; ACTUATOR OPERATED MECHANICALLY BY SAID VENT VALVE MEANS; AN INDICATOR LATCHING MEANS; AND A LATCHING MEANS ACTUATOR OPERATED IN RESPONSE TO THE POSITIONING OF SAID CONTROL PORT PRESSURE RESPONSIVE MEANS.
Claim 2
Dependent Claim
160 words
A CONTROL MEANS COMPRISING: CASING MEANS HAVING A SUPPLY PORT, A TRANSMITTER PORT, A VENT PORT, A CONTROL PORT, A SUPPLY PORT CAVITY CONNECTED TO SAID SUPPLY PORT, A TRANSMITTER PORT CAVITY CONNECTED TO SAID TRANSMITTER PORT, A SUPPLY RESTRICTOR PASSAGEWAY CONTROLLING SUPPLY FLUID FLOW FROM SAID SUPPLY PORT TO SAID TRANSMITTER PORT, A VENT PORT CAVITY CONNECTED TO SAID VENT PORT, A CONTROL PORT CAVITY CONNECTED TO SAID CONTROL PORT; TRANSMITTER PORT PRESSURE RESPONSIVE MEANS SEPARATING SAID TRANSMITTER PORT CAVITY AND SAID VENT PORT CAVITY; CONTROL PORT CAVITY SURE RESPONSIVE MEANS SEPARATING SAID CONTROL PORT CAVITY AND SAID SUPPLY PORT CAVITY; VENT VALVE PRESSURE RESPONSIVE MECHANICALLY BY SAID TRANSMITTER PORT PRESSURE RESPONSIVE MEANS AND CONNECTING AND DISCONNECTING SAID VENT PORT CAVITY AND SAID CONTROL CAVITY; AN INDICATOR; AN INDICATOR; ACTUATOR OPERATED MECHANICALLY BY SAID VENT VALVE MEANS; AN INDICATOR LATCHING MEANS; AND A LATCHING MEANS ACTUATOR OPERATED IN RESPONSE TO THE POSITIONING OF SAID CONTROL PORT PRESSURE RESPONSIVE MEANS.
References Cited (Backward Citations)
US2192224A
Cited
US3129722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |