James J Rodgers

US Patent:

48977977, Jan 30, 1990

Filed:

Apr 25, 1988

Appl. No.:

7/185752

Inventors:

Jerome J. Free - Lansdale PA
James C. Rodgers - Pipersville PA
Davie B. Lawhon - Furlong PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

G06F 1546
G01M 1900

US Classification:

364500

Abstract:

In a treatment system for feeding a liquid from a tank having an outlet by a controllable pump operated cyclically, an automatic calibration/measuring system. The system is arranged for determining the volume of liquid pumped each cycle of operation by the pump and comprises a hollow sight glass having first and second sensors coupled thereto. The sight glass is in fluid communication with the tank. The first sensor is arranged to provide a first signal when the level of liquid in the container reaches it while the second sensor, which is located below the first sensor, provides a second signal when the level of liquid in the container reaches it. The container defines a predetermined volume between the first and second sensors. The system also includes a controller to determine the actual number of cycles of operation of the pump required to pump the predetermined volume and if that number has deviated from a preestablished number. If so, the pump is controlled in response to the detected deviation.

US Patent:

51671557, Dec 1, 1992

Filed:

Nov 15, 1991

Appl. No.:

7/793038

Inventors:

James C. Rodgers - Pipersville PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

G01F 2314

US Classification:

73299

Abstract:

A system (10) and methods of use for determining the level of a body of liquid (16), e. g. , a chemical, in a storage tank, irrespective of the specific gravity of that liquid. The system (10) comprises a pressure transducer (22) and an elongated tubular, flexible sheath (24). An operating liquid (26) of lower specific gravity than the body of liquid (16) is disposed within the sheath (24). The transducer (22) is also disposed within the sheath adjacent the bottom end. The sheath (24) is immersed in the body of liquid (16) so that its top end (28) is above the liquid's surface. The pressure applied to the sheath (24) by the liquid (16) causes the sheath to collapse to a minimal internal cross sectional area, whereupon the operating liquid migrates up the sheath to form a very thin column (44). The operating liquid forming a pool (46) is located at the top of the very thin column (44). Thus, the sheath expands outward adjacent the surface (16A) of the body of liquid to retain that pool.

US Patent:

47988932, Jan 17, 1989

Filed:

Sep 21, 1987

Appl. No.:

7/099427

Inventors:

David A. Cherry - Ambler PA
Cynthia A. Maryanoff - Solebury Township PA
John E. Mills - Hatfield PA
Roy A. Olofson - State College PA
James D. Rodgers - North Wales PA

Assignee:

McNeilab, Inc. - Springhouse PA

International Classification:

C07D25116
C07D25120
C07C 6978
C07C 49217

US Classification:

544215

Abstract:

A method for the synthesis of the 2-propanone (I) is described starting from alkoxide (II) through the lactone (IV). ##STR1## Excellent control of the location of the substitution on the phenyl ring is achieved and the reaction proceeds in high yield.

US Patent:

D3379590, Aug 3, 1993

Filed:

Jan 3, 1991

Appl. No.:

7/636981

Inventors:

Davie B. Lawhon - Furlong PA
James C. Rodgers - Pipersville PA
George H. Alexander - Hatfield PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

US Classification:

D10103

US Patent:

51993082, Apr 6, 1993

Filed:

Jan 3, 1991

Appl. No.:

7/637099

Inventors:

Davie B. Lawhon - Furlong PA
James C. Rodgers - Pipersville PA
George H. Alexander - Hatfield PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

G01D 2100
G01N 2700

US Classification:

738665

Abstract:

A sensor mount is disclosed for use in a fluid volume measurement structure forming part of a fluid measurement system for feeding fluid in controlled amounts. The sensor mount includes a tubular body having first and second sensor mounting sockets whereby functionally different fluid sensors may be mounted to the tubular body. As fluid enters or exits the tubular body, a fluid sensor mounted in one or the other of the sensor sockets produces a signal to be used by a control portion of a fluid measurement system. The first sensor socket is provided as a through hole whereby a sensor may be mounted in fluid contact with the interior of the tubular body. The second sensor socket is provided as a blind hole for receiving a capacitance sensor out of fluid contact with fluids within the tubular body.

US Patent:

46645284, May 12, 1987

Filed:

Oct 18, 1985

Appl. No.:

6/789048

Inventors:

James C. Rodgers - Pipersville PA
John R. Schieber - Holland PA

Assignee:

Betz Laboratories, Inc. - Trevose PA

International Classification:

B01F 1504

US Classification:

366142

Abstract:

An apparatus and method for mixing water and a water-soluble emulsion polymer by providing the optimum amount of mixing energy required for the polymer to effectively dissolve the polymer in the water without causing the polymer molecules to shear into smaller polymer molecules. The apparatus includes a pump means, a static mixing means and a mixing chamber means. A first circulation means connects the pump means to the mixing chamber means. A second circulation means connects the pump means to the static mixing means and further connects the static mixing means the mixing chamber means. A third circulation means connects the static mixing means to the mixing chamber means. Additionally, a flow control means selectively circulates a combined stream of the water and the polymer alternatively through the first circulation means, the second circulation means or the third circulation means. The method of using this apparatus is also disclosed.