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US3608579A Expired / Lapsed US ⏱️ 0.0 years remaining

Pivoted float actuated valve

Assignee: LEIGH PRODUCTS Inc
•
Filing: 1967-07-21
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Granted: 1971-09-28
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Expires: 1987-07-21
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Abstract

Abstract A relatively rigid valve body adapted to be fixedly supported and have a source of fluid pressure connected thereto; a passage in the body connecting the source to an open-sided chamber in the body, the wall of the chamber having an annular groove around the inner end of the passage; a relatively rigid orifice body fixedly connected to the valve body and closing the open side of the chamber and having an annular groove in its inner face opposed to the groove in the wall of the chamber; an annular valve seat of relatively flexibly deformable material having its ends in sealed and supported engagement in the grooves of the valve body and orifice body, and having an integral flexible center member projecting into the interior of the annulus of the valve seat; the surface of the center member having a segmental convex spherical surface opposed to the inside of the orifice body, the orifice body having a concave surface located in coacting adjacent relation to the convex surface, with an orifice opening from the concave surface to a director passage formed in the orifice body and open to the exterior of the orifice body; and a relatively rigid actuating bar engaged in a hole extending from within the center member outwardly through the valve seat, the valve body having an opening formed therethrough passing the actuating bar in clearing relation and providing an unsupported, noncontacted, area on the outside of the valve seat surrounding the projecting end of the actuating bar; the outer end of the actuating bar being connected to a float arm having a float on its free end, and a biasing weight adjustable along its length.

Inventors

  • 👤 Robert Jonathan Moore

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 09:02
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/18; F16K31/20; F16K31/24; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7485

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 190 words
A valve comprising a body having a horizontal inlet passage and defining a chamber in aligned communication with said inlet passage, a first vertical wall forming part of said chamber and defining an outlet passage therefrom with a laterally facing outlet orifice at the inner end of the outlet passage, a laterally movable seat positioned in said chamber and having a closure surface opposed to said orifice, a valve-actuating rod having a vertically extending inner end engaged with said seat and a portion extending externally of said body and said chamber, a second upper wall of said valve body defining an opening that is larger than said actuating rod and through which said rod extends, yieldably deformable means forming the sole support for said rod and said seat from said body and forming a closure for said opening in said upper wall around said rod, said deformable means being offset above said orifice and the opposed closure surface on said seat, and a laterally turned float supporting arm on the upper end of said actuating rod, said inlet passage being formed in an externally threaded mounting neck on said body.
Claim 2
Dependent Claim 190 words
A valve comprising a body having a horizontal inlet passage and defining a chamber in aligned communication with said inlet passage, a first vertical wall forming part of said chamber and defining an outlet passage therefrom with a laterally facing outlet orifice at the inner end of the outlet passage, a laterally movable seat positioned in said chamber and having a closure surface opposed to said orifice, a valve-actuating rod having a vertically extending inner end engaged with said seat and a portion extending externally of said body and said chamber, a second upper wall of said valve body defining an opening that is larger than said actuating rod and through which said rod extends, yieldably deformable means forming the sole support for said rod and said seat from said body and forming a closure for said opening in said upper wall around said rod, said deformable means being offset above said orifice and the opposed closure surface on said seat, and a laterally turned float supporting arm on the upper end of said actuating rod, said inlet passage being formed in an externally threaded mounting neck on said body.
Claim 3
Dependent Claim 21 words
A valve as defined in claim 1 in which said seat and said deformable means are formed as an integral unit.
Claim 4
Dependent Claim 28 words
A valve as defined in claim 2 in which said first wall is formed separately from said body and secured in coacting relation thereto to complete said chamber.
Claim 5
Dependent Claim 56 words
A valve as defined in claim 3 in which said body and said first wall have opposed annular grooves formed therein opening into said chamber around said inlet and said outlet passage respectively, the unit of said deformable means and said seat having oppositely extending annular flanges received in supported and sealing relation iN said grooves.
Claim 6
Dependent Claim 114 words
A valve as defined in claim 4 in which said valve body is a cylindrical member which includes the upper wall, and an integral end wall on said body in which said inlet passage is formed with one of said grooves opening inwardly of the chamber and extending around the inlet, the unit of said deformable means being an annulus with its outer surface supported by the inside of the cylindrical member, the seat portion of said unit being an integral projection extending from the interior surface of said annulus and having a hole formed vertically through the upper side of the annulus and into said seat portion and receiving said valve actuating rod.
Claim 7
Dependent Claim 42 words
A valve as defined in claim 5 in which said first wall has a concave surface formed thereon in surrounding relation to the end of said outlet orifice, said seat being convexly shaped and receivable in the concavity of said concave surface.
Claim 8
Dependent Claim 23 words
A valve as defined in claim 6 in which said surface of said seat is formed on the yieldable material of said unit.

References Cited (Backward Citations)

US437914A Cited
US1762348A Cited
US2645448A Cited
US2760516A Cited
US2912012A Cited
US3096068A Cited
US3228418A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-09-27 1975-03-29 1975-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-09-27 1979-03-29 1979-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-09-27 1983-03-29 1983-09-28 $7700.00 Window Closed / Lapsed

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