Regulator with improved seat
AssigneeIllinois Tool Works Inc.
InventorRobert W. Wakeman
Life of this patent
Estimating the term…
Abstract
A pressure regulator having a movable seat and a seat retainer. The seat retainer having a hollow interior with an interior surface. The seat is disposed within the hollow interior of the seat retainer to control fluid flow through the pressure regulator. The seat may be adapted to slidingly engage the interior surface of the seat retainer during movement of the seat to dampen the movement of the seat. The seat may be elastically deformed by the seating surface when seated against the seating surface. The pressure regulator may have a stem extending through the seat retainer orifice and affixed to the solid body of the seat to move the seat in response to movement of a diaphragm.
Claims29
A pressure regulator, comprising:
- a fixed, hollow, seat retainer;
- and
- a movable seat disposed within the hollow seat retainer to control fluid flow through the pressure regulator, the seat having a plurality of outwardly projecting polymeric portions adapted to slidingly engage an interior surface of the hollow seat retainer to define a fluid passageway between the scat and an interior surface of the hallow seat retainer and to produce friction between the scat and the interior surface of the seat retainer to dampen movement of the seat;
- wherein fluid is free to flow through the pressure regulator via the fluid passageway to raise fluid pressure downstream of the pressure regulator in a first position of the seat, further wherein fluid is blocked from flowing downstream via the fluid passageway in a second position of the seat.
A pressure regulator, comprising:
- a seating surface;
- and
- a movable seat disposed within a housing, the seat having a first portion adapted to slidingly engage the housing and a second portion adapted to seat against the seating surface, the seat consisting essentially of a polymeric material, wherein the scat is seated against the seating surface to prevent fluid from flowing trough the pressure regulator.
A pressure regulator, comprising:
- a seat retainer having an orifice to enable fluid to flow through the seat retainer;
- a one-piece seat disposed within the seat retainer, the seat having a seating surface adapted for sealing engagement with the seat retainer and an outer surface adapted for sliding engagement with the seat retainer.
A pressure regulator, comprising:
- a fixed, hollow, seat retainer;
- and
- a movable polymeric seat nested within the hollow seat retainer to control fluid flow through the pressure regulator, the seat being interference fit with the seat retainer to dampen movement of the seat.
A pressure regulator, comprising:
- a housing having a sealing surface;
- and
- a movable member disposed within the housing to control fluid flow through the housing, the movable member comprising:
- a plurality of first portions, each first portion being adapted to slidingly engage the housing as the movable member is moved relative to the housing;
- and
- a second portion adapted for sealing engagement with the sealing surface, the plurality of first portions and the second portion comprising a polymeric material.
A pressure regulator, comprising:
- a first housing having an opening therethrough;
- and
- a single-piece polymeric member movably disposed within the housing to control fluid flow through the opening, the single-piece member comprising:
- a first portion adapted to slidingly engage a surface of the housing as the single-piece member is moved relative to the housing;
- and
- a second portion adapted for sealing engagement around the opening.
Dependencies are inferred from the claim text.