John L Esola

US Patent:

40808270, Mar 28, 1978

Filed:

Dec 20, 1976

Appl. No.:

5/752676

Inventors:

John L. Esola - Falls Creek PA

Assignee:

Rockwell International Corporation - Pittsburgh PA

International Classification:

G01F 1500

US Classification:

73275

Abstract:

An improvement in the drive to the index, or register, of diaphragm-type gas meters is disclosed, in which the index always runs in the same direction, regardless of the direction of flow of fluid through the meter.

US Patent:

50092456, Apr 23, 1991

Filed:

Sep 20, 1990

Appl. No.:

7/587621

Inventors:

John L. Esola - Falls Creek PA
David L. Kessler - DuBois PA

Assignee:

M&FC Holding Company, Inc. - Wilmington DE

International Classification:

G05D 1606

US Classification:

1371165

Abstract:

A diaphragm actuated pressure regulator is provided having a molded contoured diaphragm capable of operation in the upper portion of the diaphragm's deflection stroke without experiencing material deformation and thereby preserving the precision of the diaphragm's response to pressure fluctuations. The pressure regulator includes a curved lever arm for transmitting the deflection of the diaphragm to a displacement of a valve pad which regulates the flow of gas from an inlet through an orifice restriction to an outlet. The lever fulcrum is located in the throat area of the pressure regulator and supported by a guide to provide a high lever ratio which enables a relatively small diaphragm to generate a relatively high valve closing force. In a preferred embodiment of the invention the diaphragm includes an O-ring shaped circumference which is secured between the upper assembly and the lower case of the pressure regulator thereby insuring an air tight seal without the need for an additional gasket or sealant material.

US Patent:

44223242, Dec 27, 1983

Filed:

Nov 20, 1981

Appl. No.:

6/323330

Inventors:

John L. Esola - Falls Creek PA

Assignee:

Rockwell International Corporation - Pittsburgh PA

International Classification:

G01F 320

US Classification:

73266

Abstract:

Disclosed is a four chamber gas meter in which the diaphragms are directly connected to the crank arms on the control shaft.

US Patent:

45384584, Sep 3, 1985

Filed:

Aug 26, 1983

Appl. No.:

6/526733

Inventors:

Daniel E. Bruce - Turtle Creek PA
John L. Esola - Falls Creek PA

Assignee:

Rockwell International Corporation - Pittsburgh PA

International Classification:

G01F 322
G01F 1504

US Classification:

73233

Abstract:

A temperature compensator for gas meters is comprised of two serially connected bi-metallic elements extending between the tangent post and the drive shaft from the flow responsive element. The bimetallic elements are reversely oriented whereby each element responds to a given temperature change to produce movement in the same direction as the other with respect to the axis of the drive shaft.