Top repairable gas-charged bladder type pulsation dampener
AssigneePerformance Pulsation Control, Inc.
InventorsJohn Thomas Rogers, Cersten Jantzon
Life of this patent
Estimating the term…
Abstract
Top repairable gas-charged pulsation dampener designs include one or both of a threaded cover for bladder replacement and a standardized bladder with a double convex, anti-extrusion bladder button. The threaded cover, which speeds up bladder replacement over bolt-on covers, preferably has a two-piece construction to reduce torsion on the bladder neck. The bladder design, which includes a double convex, anti-extrusion bladder button, facilitates use of the same bladder design in both top repairable and bottom repairable gas-charged pulsation dampeners.
Claims11
A top repairable gas-charged pulsation dampener, comprising:
- a body having a bottom opening for receiving and discharging pumped fluid and a top opening for installing or replacing a bladder;
- and
- a threaded top cover over the top opening, the threaded top cover comprising a threaded plug filling the opening and protruding above the body, wherein a rim of the bladder is compressed between the threaded plug and the body;
- and
- a low friction gasket between the threaded plug and the rim of the bladder,
- wherein the bladder is secured by the body and the threaded top cover.
A top repairable gas-charged pulsation dampener, comprising:
- a body having a bottom opening for receiving and discharging pumped fluid and a top opening for installing or replacing a bladder;
- a threaded top cover over the top opening, the threaded top cover comprising a threaded plug filling the opening and protruding above the body, wherein a rim of the bladder is compressed between the threaded plug and the body;
- and
- a through-hole within a portion of the threaded plug protruding above the body,
- wherein the bladder is secured by the body and the threaded top cover.
A top repairable gas-charged pulsation dampener, comprising:
- a body having a bottom opening for receiving and discharging pumped fluid and a top opening for installing or replacing a bladder;
- a top cover over the top opening, the top cover comprising a threaded plug filling the opening and protruding above the body, wherein a rim of the bladder is compressed between the threaded plug and the body;
- a low friction gasket between the threaded plug and the rim of the bladder;
- and
- the bladder secured by the body and the top cover,
- wherein the bladder is secured by compression of the rim of the bladder between the body and the top cover, and
- wherein the bladder is interchangeable with bladders for bottom repairable gas charged pulsation dampeners.
A top repairable gas-charged pulsation dampener, further comprising:
- a body having a bottom opening for receiving and discharging pumped fluid and a top opening for installing or replacing a bladder;
- a top cover over the top opening;
- the bladder secured by the body and the top cover;
- and
- a through-hole within a portion of a threaded plug protruding above the body,
- wherein the bladder is interchangeable with bladders for bottom repairable gas charged pulsation dampeners, and
- wherein the bladder is interchangeable with bladders for bottom repairable gas charged pulsation dampeners.
A bladder for either a top repairable gas-charged pulsation dampener or a bottom repairable gas-charged pulsation dampener, the bladder comprising:
- a bladder body having a rim around a neck of the bladder body, the rim configured to be secured by compression between a pulsation dampener body and a cover for a repair opening in the pulsation dampener body, wherein the rim includes a bridge portion and a bulb portion of circular cross-section having a diameter greater than a thickness the bridge portion;
- and
- a double convex button on a portion of the bladder body opposite the neck.
Dependencies are inferred from the claim text.