Robert Leroy Cook
Plumbers in Salt Lake City, UT

6453939, Sep 24, 2002

Jul 1, 1997

08/886708

Robert D. Cook - Salt Lake City UT
Jerry W. Hunt - Murray UT

Baker Hughes Incorporated - Houston TX

F16K 3102

137392, 137395, 137398, 137412, 209168

A fluid level control apparatus for selectively controlling the movement of liquid flowing out of a flotation cell is described. The fluid level control apparatus is significantly reduced in size in comparison with the flotation cell or cells to which it is connected which enables less expensive construction and reduced operating costs in terms of both the equipment and the plant as a whole. The fluid level control apparatus comprises a vessel having a valve positioned therein which includes a valve body structured with a curved surface which provides selective and finite control of fluid flowing through the vessel of the control apparatus.

6935367, Aug 30, 2005

Sep 3, 2002

10/234003

Robert D. Cook - Salt Lake City UT, US
Jerry W. Hunt - Murray UT, US

GL&V Management Hungary KFT. - Egressy

F17D003/00, B03D001/14, F16K031/02

137572, 137392, 137395, 209168, 209171

A fluid level control apparatus for selectively controlling the movement of liquid flowing out of a flotation cell is described. The fluid level control apparatus is significantly reduced in size in comparison with the flotation cell or cells to which it is connected which enables less expensive construction and reduced operating costs in terms of both the equipment and the plant as a whole. The fluid level control apparatus comprises a vessel having a valve positioned therein which includes a valve body structured with a curved surface which provides selective and finite control of fluid flowing through the vessel of the control apparatus. In one embodiment at least one of the inlet and outlet of the control apparatus exhibit a cross-sectional area taken transverse to the intended fluid flow therethrough having a substantially horizontal dimension which is greater than a substantially vertical dimension.

5997740, Dec 7, 1999

Aug 7, 1997

8/908237

Robert Cook - Salt Lake City UT
John W. Thorum - Salt Lake City UT
Leonard J. A. Wood - Wyee, AU

Baker Hughes Incorporated - Houston TX

B01D 2118

210236

A lifting mechanism for a sedimentation tank is provided for vertically raising and lowering a rake assembly in such sedimentation tank. The lifting mechanism comprises one or more elongate members pivotally connected to certain structural elements of the assemblage, such as the rotary drive motor, rake assembly, column or bridge. The pivotal connections of the elongate members are positioned about a horizontal axis and are oriented to receive the torque forces imposed on the assemblage as the rake assembly rotates in the tank simultaneously with vertical lifting. The torque forces are translated into the pivotal connections and are able to counteract those forces to facilitate vertically raising and lowering the rake assembly while it is being rotated in the sedimentation tank.

6136207, Oct 24, 2000

Jan 11, 1999

9/229498

Robert Cook - Salt Lake City UT
John W. Thorum - Salt Lake City UT
Leonard J. A. Wood - Wyee, AU

Baker Hughes Incorporated - Houston TX

B01D 2118

210803

A lifting mechanism for a sedimentation tank is provided for vertically raising and lowering a rake assembly in such sedimentation tank. The lifting mechanism comprises one or more elongate members pivotally connected to certain structural elements of the assemblage, such as the rotary drive motor, rake assembly, column or bridge. The pivotal connections of the elongate members are positioned about a horizontal axis and are oriented to receive the torque forces imposed on the assemblage as the rake assembly rotates in the tank simultaneously with vertical lifting. The torque forces are translated into the pivotal connections and are able to counteract those forces to facilitate vertically raising and lowering the rake assembly while it is being rotated in the sedimentation tank.