Robert M Irwin

US Patent:

6425409, Jul 30, 2002

Filed:

May 4, 2000

Appl. No.:

09/564529

Inventors:

David P. Cross - Atkinson NH
Andreas A. Weiss - Nashua NH
Andrew Farkas - Hudson NH
Robert Irwin - Nashua NH

Assignee:

Parker Hannifin Corp. - Cleveland OH

International Classification:

F15B 13044

US Classification:

137 1518, 1376275, 137884, 25112915

Abstract:

A valve includes a bobbin/valve body, a solenoid and a plunger. The bobbin/valve body is formed in one piece, defines all of the valves inlet/outlet ports and forms the entire support structure for the solenoid and the plunger. To assemble the valve, a plunger body is inserted into the bobbin/valve body through an end opening into a longitudinal bore and a spring positioned to bias the plunger body to a normally closed position. A pole piece is then inserted through the end opening into the longitudinal bore and attached to the bobbin/valve body. A solenoid coil is wound around a central cylindrical section of the bobbin/valve body, and terminal pins and a flux conductor are attached to the bobbin/valve body. The attachment of the pole piece, the terminal pins, and/or the flux conductor may be accomplished by press-fit and/or swage coupling techniques.

US Patent:

6546959, Apr 15, 2003

Filed:

Apr 17, 2002

Appl. No.:

10/124257

Inventors:

David P. Cross - Atkinson NH
Andreas A. Weiss - Nashua NH
Andrew Farkas - Hudson NH
Robert Irwin - Nashua NH

Assignee:

Parker Hannifin Corp. - Cleveland OH

International Classification:

F16K 11044

US Classification:

1376275, 137 1518, 137884, 25112915

Abstract:

A valve includes a bobbin/valve body, a solenoid and a plunger. The bobbin/valve body is formed in one piece, defines all of the valves inlet/outlet ports and forms the entire support structure for the solenoid and the plunger. To assemble the valve, a plunger body is inserted into the bobbin/valve body through an end opening into a longitudinal bore and a spring positioned to bias the plunger body to a normally closed position. A pole piece is then inserted through the end opening into the longitudinal bore and attached to the bobbin/valve body. A solenoid coil is wound around a central cylindrical section of the bobbin/valve body, and terminal pins and a flux conductor are attached to the bobbin/valve body. The attachment of the pole piece, the terminal pins, and/or the flux conductor may be accomplished by press-fit and/or swage coupling techniques.

US Patent:

6684896, Feb 3, 2004

Filed:

Jan 28, 2003

Appl. No.:

10/352349

Inventors:

Andreas A. Weiss - Brookline NH
David P. Cross - Atkinson NH
Andrew J. Farkas - Nashua NH
Robert F. Irwin - Nashua NH

Assignee:

Parker-Hannifin Corporation - Cleveland OH

International Classification:

F15B 13044

US Classification:

137 1518, 13731503, 13731509, 1376275, 25112921

Abstract:

A valve assembly includes a valve with a bobbin/valve body, a solenoid and a plunger. The bobbin/valve body is formed in one piece, and defines all of the valves inlet/outlet ports and forms the entire support structure for the solenoid and the plunger. The valve may be connected to a manifold by press-fitting port nipples of the valve into corresponding channels in the manifold. The manifold is formed of a resilient, elastomeric material, and the port nipples include radial projecting barbs, which enable the valve to be fluidly-connected to the manifold without additional O-ring seals or other mechanical sealing devices. Fittings with barbs can likewise be press-fit in other channels of the manifold to connect the valve assembly with fluid lines or other components in the fluid system. The fittings can also be provided unitary with the manifold, and/or adhesively attached to the manifold and/or to the fluid lines and other components.