US3077903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control device
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1959-04-02
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Granted: 1963-02-19
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Expires: 1979-04-02
Abstract
No abstract record available.
Inventors
- 👤 Honsinger Philip George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:35
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; G05D7/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A FLUID FLOW CONTROL DEVICE FOR MAINTAINING SUBSTANTIALLY UNIFORM VOLUMETRIC FLUID DELIVERY RATES THERETHROUGH, A FLUID CONTAINING CASING HAVING A FLUID INLET, A FLUID OUTLET AND AN ANNULAR SHOULDER THEREBETWEEN, A FREE FLOATING FLOW CONTROL WASHER OPERABLE UPON SAID SHOULDER, SAID FLOW CONTROL WASHER COMPRISING A RESILIENT ANNULAR BODY HAVING AN AXIALLY EXTENDING FLOW ORIFICE AND AXIALLY SPACED INLET AND OUTLET FACES TRANSVERSE TO THE AXIS, SAID ANNULAR BODY BEING OF SUBSTANTIAL AXIAL AND RADIAL THICKNESS SO THAT COMPRESSION BY INLET FLUID PRESSURE IS EFFECTIVE TO REDUCE THE FLOW ORIFICE OPENING AREA, AND A THIN, FLEXIBLE ANNULAR FLANGE FORMED INTEGRALLY WITH THE PERIPHERY OF SAID BODY AT SAID OUTLET FACE, SAID FLANGE HAVING AN AXIALLY FACING SURFACE, AND SAID AXIALLY FACING SURFACE BEING FREELY OPERATIVELY POSITIONABLE AGAINST SAID SHOULDER BY THE PRESSURE OF INLET FLUID FLOWING THROUGH SAID CASING TO EFFECTIVELY SEAL AGAINST SAID SHOULDER EVEN AT LOW INLET PRESSURES.
Claim 2
Dependent Claim
151 words
IN A FLUID FLOW CONTROL DEVICE FOR MAINTAINING SUBSTANTIALLY UNIFORM VOLUMETRIC FLUID DELIVERY RATES THERETHROUGH, A FLUID CONTAINING CASING HAVING A FLUID INLET, A FLUID OUTLET AND AN ANNULAR SHOULDER THEREBETWEEN, A FREE FLOATING FLOW CONTROL WASHER OPERABLE UPON SAID SHOULDER, SAID FLOW CONTROL WASHER COMPRISING A RESILIENT ANNULAR BODY HAVING AN AXIALLY EXTENDING FLOW ORIFICE AND AXIALLY SPACED INLET AND OUTLET FACES TRANSVERSE TO THE AXIS, SAID ANNULAR BODY BEING OF SUBSTANTIAL AXIAL AND RADIAL THICKNESS SO THAT COMPRESSION BY INLET FLUID PRESSURE IS EFFECTIVE TO REDUCE THE FLOW ORIFICE OPENING AREA, AND A THIN, FLEXIBLE ANNULAR FLANGE FORMED INTEGRALLY WITH THE PERIPHERY OF SAID BODY AT SAID OUTLET FACE, SAID FLANGE HAVING AN AXIALLY FACING SURFACE, AND SAID AXIALLY FACING SURFACE BEING FREELY OPERATIVELY POSITIONABLE AGAINST SAID SHOULDER BY THE PRESSURE OF INLET FLUID FLOWING THROUGH SAID CASING TO EFFECTIVELY SEAL AGAINST SAID SHOULDER EVEN AT LOW INLET PRESSURES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |