US4244556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves or the like
Assignee: U BRAND CORP
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Filing: 1978-09-18
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Granted: 1981-01-13
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Expires: 1998-09-18
Abstract
Abstract Valves, in the nature of sink faucets, sill cocks, boiler drains and the like are disclosed, which embody features such as enlarged flow chambers, dams, and outflow passageways or channels designed collectively to substantially decrease the turbulence of water flow and effect improved characteristics in the type of fluid discharge, control turbulence of flow and flow direction, produce a softer controlled flow pattern, retard or decrease the Venturi action created by the fluid velocity, and dispense with the need for aerators.
Inventors
- 👤 Don R. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:43
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/02; F16K27/00; F16K27/02; F16K31/00; F16K31/44; F16K31/50
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
80 words
In a valve having a valve seat and an outlet portion having a fluid outlet passageway therein, said fluid outlet passageway comprising a wall having a transverse cross-section in the form of a downwardly facing arc of a circle, and a wall having a transverse cross-section in the form of a chord of that circle interconnecting the ends of said arc, said last-named wall terminating at one end in a dam extending from said last-named wall to said valve seat.
Claim 2
Dependent Claim
80 words
In a valve having a valve seat and an outlet portion having a fluid outlet passageway therein, said fluid outlet passageway comprising a wall having a transverse cross-section in the form of a downwardly facing arc of a circle, and a wall having a transverse cross-section in the form of a chord of that circle interconnecting the ends of said arc, said last-named wall terminating at one end in a dam extending from said last-named wall to said valve seat.
Claim 3
Dependent Claim
145 words
The valve defined in claim 1 said valve having a body, a flow inlet passage, a valve seat above said flow inlet passage, a dam disposed above said valve seat, a valve stem, an annular chamber between said valve stem and said body, and a fluid outlet having a flow passageway therethrough extending from said dam to the end of said fluid circuit outlet, the length of said flow passageway being determined from the equation A=C×D×E×F×G/B wherein B is the volume in cubic inches of the flow passageway, C is the area in square inches of said flow inlet passage, D is the fluid pressure in pounds per square inch in the fluid passageway, F is the height in inches of the dam, G is the area in square inches of said annular chamber and A is the length in inches of the fluid passageway.
Claim 4
Dependent Claim
77 words
In a valve having a valve seat and an outlet portion having a fluid outlet passageway comprising a wall having a transverse cross-section in the form of a downwardly facing arc of a circle and a wall having a transverse cross-section in the form of a chord of that circle interconnecting the ends of said arc, wherein said first-named wall has a rib which extends from said wall into said passageway and extends longitudinally of said passageway.
Claim 5
Dependent Claim
77 words
In a valve having a valve seat and an outlet portion having a fluid outlet passageway comprising a wall having a transverse cross-section in the form of a downwardly facing arc of a circle and a wall having a transverse cross-section in the form of a chord of that circle interconnecting the ends of said arc, wherein said first-named wall has a rib which extends from said wall into said passageway and extends longitudinally of said passageway.
Claim 6
Dependent Claim
15 words
A valve as defined in claim 3, wherein said rib is of semi-circular transverse cross-section.
Claim 7
Dependent Claim
19 words
A valve as defined in claim 3, wherein said first-named wall has a transverse cross-section of substantially semi-circular form.
Claim 8
Dependent Claim
17 words
A valve as defined in claim 5, wherein said second-named wall is curved longitudinally through said passageway.
Claim 9
Dependent Claim
19 words
A valve as defined in claim 3, wherein said second-named wall is inclined to the axis of said circle.
Claim 10
Dependent Claim
13 words
A valve as defined in claim 7, wherein said second-named wall is flat.
References Cited (Backward Citations)
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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) | 1984-01-13 | 1984-07-14 | 1985-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-13 | 1988-07-14 | 1989-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-13 | 1992-07-14 | 1993-01-13 | $7700.00 | Window Closed / Lapsed |