S.h. Leggitt Company

Charles M Olds

Christopher Glenn Turney

Paul W Heald

Mark Hood

Loftus A Fitzwater, Iii

Edward R Lee

Brian K Yutzy

A pressure regulator () includes a changeover regulator () with plural inlets (). Inside the regulator, each inlet has a closure member () connected to a diaphragm () for control of the closure members () in response to pressure inside the regulator (). Biasing members () are stabilized in position by either an apertured plate (), a cup () or both. A changeover handle () depresses one spring () or the other to bias one closure member () open to admit gas from the associated inlet (or).

Automatic changeover regulator

A pressure regulator comprising a housing, a pivoting lever selectively covering a passage between an inlet port and an outlet port of the housing, a diaphragm interconnected to the lever to rotate the lever in reaction to pressure levels in the housing, and a closure member abutting the pivoting lever and covering the passage to prevent fluid flow through the passage. The pressure regulator can have the closure member not being directly connected to the lever, a stabilizer element frictionally abutting a pivot pin as the lever rotates to thereby stabilize movement of the lever, an adjustment member that translates rotational movement of an adjustment cap into compression or decompression of a biasing element without applying a rotational force to the biasing element, and/or the cap including a tab configured to be selectively inserted at least one slot on the housing to prevent rotation of the adjustment cap.

Pressure regulator with improved outlet pressure control

A pressure regulator having a housing with an inlet port and an outlet port. A plug is located within the housing and dividing the housing into an upper chamber and a lower chamber, with the upper and lower chamber being connected by a vent. The plug includes a fluid path between the inlet port and the bore. A yoke is adapted selectively close the fluid path in the plug. A diaphragm is located in the upper chamber and is connected to the yoke. A biasing member biases the yoke to open the fluid path through the plug. The diaphragm is configured to move the yoke to open the fluid path when pressure in the lower chamber and vented to the upper chamber through the vent is above a predetermined amount. The pressure regulator can also include a second biasing member used to positively close the fluid path through the plug.

Growing community of inventors

Martindale, TX, United States of America

Charles M Olds