John J Frese, 986213 Tezcuco Ct, Granbury, TX 76049

6378842, Apr 30, 2002

Jul 20, 2000

09/620478

John J. Frese - Katy TX
James N. Reed - Spring TX

Delaware Capital Formation, Inc. - Wilmington DE

F16K 116

251298, 25131516, 25131512

A V-ball-type control valve having: a valve body installable in a piping system; a V-ball-type valve element rotatably positioned in the valve body; a valve shaft extending from the V-ball-valve element; and a bonnet removably attachable to the valve body. The valve shaft is rotatably positionable through the bonnet such that the bonnet, the valve shaft, and the valve ball element can all be removed from the valve body without removing the valve body from the piping system.

6497246, Dec 24, 2002

Jun 5, 2001

09/874918

Ivy J. Nicewarner - Magnolia TX
John J. Frese - Houston TX
James N. Reed - Spring TX

Delaware Capital Formation, Inc. - Wilmington DE

F16K 3134

137413, 137416, 13759614, 1376275, 137596, 251332, 251900

A snap pilot used to pneumatically energize and de-energize a control device, such as a valve. The pilot has two valvesâone to admit pilot pressure, and one to exhaust pressure. The pilot incorporates valves having an elastomeric seal but maintaining the precision of metal to metal contact. In the preferred embodiment, the elastomeric seal is an O-ring placed in a groove, without adhesive, having only a small amount of deflection when the seat is closed, whereby simultaneous metal-to-metal and elastomer-to-metal contact is achieved.

4700738, Oct 20, 1987

Sep 17, 1986

6/908228

John J. Frese - Katy TX
Quin D. Kroll - Houston TX

Dover Resources, Inc. - Tulsa OK

F16K 3118

137412

An improved liquid level controller having a housing, a body connecting from the rear of the housing for connecting directly to a vessel and to allow transmission of forces exerted by the displacer type float within the vessel responsive to changes in the level of liquid therein through the housing to a shaft having rotation about an axis extending horizontally and parallel to the rear of the housing, a torque bar pivotally mounted near its center to the body, means for imparting the rotational force of said shaft as an upward force to one side of the torque bar, means biasing the torque bar in a direction to maintain it in contact with and balance the force from said force imparting means, a control means having a supply and an output for actuating a liquid control, a proportional band mechanism including a lever pivotally mounted to said housing at one end and having a fulcrum member slidably mounted thereon for engaging said torque bar to transmit the slight motion of said torque bar in balancing the forces to a pin engaging said control means to control the liquid level in the vessel.