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US 4,363,464 AGranted
Angle globe valve
OwnerRichard W. Spilsinventor
Life of this patent
Estimating the term…
Abstract
A high pressure multistage valve in which a multiflanged plug is shiftable vertically within a passage provided by a stack of encircling rings, which can be readily exchanged or replaced. A turnable stem effects linear movement of the plug via a motion converting mechanism located in the interior of the valve. A lubricating system for the mechanism has a movable interface with the fluid being controlled.
Claims7
In a multiple stage valve having walls defining a cavity, a stack of separate stage rings arranged within said cavity,
- said stage rings defining a flow passageway for conducting fluid from an inlet in said body axially through said stack to an outlet from said body,
- and a valve member within said cavity cooperatively related to said stage rings to control said axial fluid flow through said valve,
- each stage ring having a ring portion and an inwardly projecting annular flange,
- said flange having an upstream face, a downstream face, and an intermediate face,
- said downstream face of at least certain rings being formed with plural stepped portions.
2 more elements
In a multiple stage valve,
- a valve body formed with a through bore intersected adjacent one end by an inlet passage,
- an outlet flange member having a boss projecting into one end of said bore,
- a bonnet flange member having a boss projecting into the other end of said bore,
- a stack of stage rings nested within said bore,
- a spider guide ring interposed between the boss of said outlet flange member and said ring stack,
- a spacer tube interposed between the boss of said bonnet flange member and said stack and being formed with an opening of a size similar to that of the inlet passage,
- means on said bonnet flange member for holding said spacer tube with its opening in alignment with said inlet passage,
- a valve member engaging said spider member and having portions in cooperative relationship to said stage rings, and having a portion projecting through said bonnet flange member to facilitate actuation of said valve member,
- the combined height of said bosses, said stack of stage rings, said spider, and said spacer tube being greater than the length of said bore,
- and means for bolting said bonnet flange member and said outlet flange member to said body to clamp the intervening elements therebetween.
7 more elements
Dependencies are inferred from the claim text.