US3140047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid distribution device and system therefor
Assignee: TDY Industries LLC
•
Filing: 1962-06-05
•
Granted: 1964-07-07
•
Expires: 1982-06-05
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Holloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:21
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/185; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
225 words
IN COMBINATION (A) A SOURCE CAPABLE OF DELIVERING FLUID AT A SELECTED ONE OF TWO PRESSURES; (B) A FLUID PRESSURE OPERATED DEVICE; (C) FIRST AND SECOND LEAK PORTS; (D) MEANS FOR VARYING IN REVERSE SENSES THE RESTRICTIONS TO FLOW THROUGH THE LEAK PORTS SO THAT THE RESTRICTION TO FLOW THROUGH ONE LEAK PORT IS INCREASED AS THE RESTRICTION TO FLOW THROUGH THE OTHER IS DECREASED AND VICE VERSA; (E) FIRST AND SECOND CONDUITS CONNECTED WITH THE FIRST AND SECOND LEAK PORTS, RESPECTIVELY, EACH CONDUIT CONTAINING A FLOW RESTRICTOR; (F) MEANS RESPONSIVE TO THE PRESSURE OF THE SOURCE FOR CONNECTING THE SOURCE WITH THE FIRST CONDUIT WHEN THE PRESSUR IS THE LOWER OF SAID TOW PRESSURES AND FOR CONNECTING THE SOURCE WITH THE SECOND CONDUIT WHEN THE PRESSURE IS THE HIGHER OF SAID TWO PRESSURES; AND (G) MEANS RESPONSIVE TO THE PRESSURES IN THE CONDUITS FOR TRANSMITTING TO THE FLUID PRESSURE OPERATED DEVICE A PRESSURE THAT IS PROPORTIONAL TO THE PRESSURE IN THE FIRST CONDUIT DOWNSTREAM OF THE FLOW RESTRICTOR WHEN THE PRESSURE IN THIS CONDUIT IS HIGHER THAN THE PRESSURE IN THE SECOND CONDUIT, AND FOR TRANSMITTING TO THE FLUID PRESSURE OPERATED DEVICE A PRESSURE THAT IS PROPORTIONAL TO THE PRESSURE IN THE SECOND CONDUIT DOWNSTREAM OF THE FLOW RESTRICTOR WHEN THE PRESSURE IN THIS CONDUIT IS HIGHER THAN THE PRESSURE IN THE FIRST CONDUIT.
Claim 2
Dependent Claim
225 words
IN COMBINATION (A) A SOURCE CAPABLE OF DELIVERING FLUID AT A SELECTED ONE OF TWO PRESSURES; (B) A FLUID PRESSURE OPERATED DEVICE; (C) FIRST AND SECOND LEAK PORTS; (D) MEANS FOR VARYING IN REVERSE SENSES THE RESTRICTIONS TO FLOW THROUGH THE LEAK PORTS SO THAT THE RESTRICTION TO FLOW THROUGH ONE LEAK PORT IS INCREASED AS THE RESTRICTION TO FLOW THROUGH THE OTHER IS DECREASED AND VICE VERSA; (E) FIRST AND SECOND CONDUITS CONNECTED WITH THE FIRST AND SECOND LEAK PORTS, RESPECTIVELY, EACH CONDUIT CONTAINING A FLOW RESTRICTOR; (F) MEANS RESPONSIVE TO THE PRESSURE OF THE SOURCE FOR CONNECTING THE SOURCE WITH THE FIRST CONDUIT WHEN THE PRESSUR IS THE LOWER OF SAID TOW PRESSURES AND FOR CONNECTING THE SOURCE WITH THE SECOND CONDUIT WHEN THE PRESSURE IS THE HIGHER OF SAID TWO PRESSURES; AND (G) MEANS RESPONSIVE TO THE PRESSURES IN THE CONDUITS FOR TRANSMITTING TO THE FLUID PRESSURE OPERATED DEVICE A PRESSURE THAT IS PROPORTIONAL TO THE PRESSURE IN THE FIRST CONDUIT DOWNSTREAM OF THE FLOW RESTRICTOR WHEN THE PRESSURE IN THIS CONDUIT IS HIGHER THAN THE PRESSURE IN THE SECOND CONDUIT, AND FOR TRANSMITTING TO THE FLUID PRESSURE OPERATED DEVICE A PRESSURE THAT IS PROPORTIONAL TO THE PRESSURE IN THE SECOND CONDUIT DOWNSTREAM OF THE FLOW RESTRICTOR WHEN THE PRESSURE IN THIS CONDUIT IS HIGHER THAN THE PRESSURE IN THE FIRST CONDUIT.
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |