Jeff A Gessaman
Engineers at Sunburst Dr, Fort Collins, CO
License number
Colorado 32532
Issued Date
Feb 9, 1998
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
2403 Sunburst Dr, Fort Collins, CO 80525
Professional information
Mechanical Engineering Manager
Position:
Mechanical Engineering Manager at Woodward
Location:
Fort Collins, Colorado Area
Industry:
Machinery
Work:
Woodward
since Feb 1994
-
Mechanical Engineering Manager
Mechancial Development Engineer At Woodward
Position:
Mechancial Development Engineer at Woodward
Location:
Fort Collins, Colorado Area
Industry:
Aviation & Aerospace
Work:
Woodward
-
Mechancial Development Engineer
Mechanical Development Engineer At Woodward
Position:
Mechanical Development Engineer at Woodward
Location:
Fort Collins, Colorado Area
Industry:
Industrial Automation
Work:
Woodward
-
Mechanical Development Engineer
Valve Having Pressure Balancing Piston And Method Involving Same
US Patent:
2004009, May 27, 2004
Filed:
Oct 28, 2003
Appl. No.:
10/695403
Inventors:
Jeff Gessaman - Fort Collins CO, US
Assignee:
Woodward Governor Company - Fort Collins CO
International Classification:
F16K039/00
US Classification:
251/282000
Abstract:
A valve assembly is disclosed that provides for complete or partial fluid pressure balancing across the valve, and can be used for reducing valve actuation forces in order to employ electric actuation. The valve assembly includes a valve housing having a valve chamber, a flow passageway, and a piston chamber. A valve member is disposed in the valve housing and is movable along a valve axis. The valve member is subjected to a first pressure, which urges the valve in a first direction. To counteract this force, a piston integral with the valve member is slidably arranged in the piston chamber. One side of the piston is subjected to this first pressure to provide a counterbalancing force. A pressure passage fluid communication of the first pressure between the flow passageway and said one side of the piston.
Valve Having Pressure Balancing Piston And Method Involving Same
US Patent:
7051746, May 30, 2006
Filed:
Jul 27, 2005
Appl. No.:
11/191098
Inventors:
Jeff A. Gessaman - Fort Collins CO, US
Assignee:
Woodward Governor Company - Fort Collins CO
International Classification:
F16K 39/00
US Classification:
137 14, 251282
Abstract:
A valve assembly is disclosed that provides for complete or partial fluid pressure balancing across the valve, and can be used for reducing valve actuation forces in order to employ electric actuation. The valve assembly includes a valve housing having a valve chamber, a flow passageway, and a piston chamber. A valve member is disposed in the valve housing and is movable along a valve axis. The valve member is subjected to a first pressure, which urges the valve in a first direction. To counteract this force, a piston integral with the valve member is slidably arranged in the piston chamber. One side of the piston is subjected to this first pressure to provide a counterbalancing force. A pressure passage fluid communication of the first pressure between the flow passageway and said one side of the piston.
Fully Independent, Redundant Fluid Energized Sealing Solution With Secondary Containment
US Patent:
7426936, Sep 23, 2008
Filed:
Mar 2, 2006
Appl. No.:
11/366299
Inventors:
Jeff A Gessaman - Fort Collins CO, US
Steven Charles Stumbo - Fort Collins CO, US
Kevin E. Greeb - Fort Collins CO, US
Wade A. Burdick - Fort Collins CO, US
Steven Charles Stumbo - Fort Collins CO, US
Kevin E. Greeb - Fort Collins CO, US
Wade A. Burdick - Fort Collins CO, US
Assignee:
Woodward Governor Company - Fort Collins CO
International Classification:
F16J 9/00
US Classification:
137312, 251214, 277320
Abstract:
A redundant sealing system with secondary containment for preventing leakage of fluid along a valve shaft is provided. The system comprises a first set of dynamic seals, a second set of dynamic seals, an auxiliary barrier fluid chamber, and a barrier fluid indicator. The first and second set of dynamic seals are in spaced relation to each other a distance equal to or further than a maximum stroke length of an actuatable valve stem. The auxiliary barrier fluid chamber is interposed between the first and second sets of dynamic seals. The barrier fluid indicator has a piston in a primary barrier fluid chamber. A first face of the piston is exposed to the auxiliary barrier fluid chamber. A second face of the piston is exposed to a barrier fluid and inhibited from fluid communication with the auxiliary barrier fluid chamber by a dynamic seal in the first set of dynamic seals.
Fluid Control Valve With Sensing Port
US Patent:
8038121, Oct 18, 2011
Filed:
Jan 6, 2009
Appl. No.:
12/349345
Inventors:
Jeff A. Gessaman - Fort Collins CO, US
Assignee:
Woodward, Inc. - Fort Collins CO
International Classification:
F16K 1/54
US Classification:
251122, 251205, 251282, 251325
Abstract:
A fluid control valve includes a valve housing having an inlet and an outlet. A metering plug is located within the valve housing, and is configured to move linearly within the valve housing along a valve axis between an open position to allow fluid flow between the inlet and the outlet, and a closed position to block fluid flow between the inlet and the outlet. A reference plane is oriented perpendicular to the valve axis. The metering plug includes a nose portion having a sensing port in fluid communication with fluid flow at the outlet. The sensing port is oriented perpendicular to the valve axis and generally parallel to the reference plane.
High Recovery Sonic Gas Valve
US Patent:
7044434, May 16, 2006
Filed:
Mar 9, 2004
Appl. No.:
10/796811
Inventors:
Barry T. Brinks - Fort Collins CO, US
Jeff A. Gessaman - Fort Collins CO, US
Barry Suelter - Fort Collins CO, US
Jeff A. Gessaman - Fort Collins CO, US
Barry Suelter - Fort Collins CO, US
Assignee:
Woodward Governor Company - Fort Collins CO
International Classification:
F16K 47/00, F16L 55/02
US Classification:
251122, 251124
Abstract:
A high recovery sonic gas valve design with the inlet flow entering transverse and orthogonal to the outlet flow is presented. The configuration cancels the effects of the inlet flow entering orthogonal to the axis of the nozzle and diffuser. The inlet passage is curved in a manner to let the flow enter along the centerline of the nozzle and diffuser. The nozzle is contoured and provides upstream flow impedance. The diffuser is contoured with the area gradient varying from a low positive value at the nozzle throat then to a maximum value and finally dropping off significantly to near zero prior to the nozzle exit. The diffuser is nearly cylindrical and may extend past the valve outlet flange and protrude into adjacent piping.