James L Neff

US Patent:

20030047222, Mar 13, 2003

Filed:

Sep 12, 2001

Appl. No.:

09/951076

Inventors:

James Neff - Bloomfield MI, US
Martha Welch - Bloomfield MI, US
Richard Fagerlie - New Smyrna Beach FL, US

International Classification:

F15B013/043

US Classification:

137/625640

Abstract:

A pilot operated valve assembly including a valve body having a pressurized air supply inlet port in communication with a source of pressurized air and at least one cylinder passage. A main valve bore extends axially within the valve body and a main valve member is movable between predetermined positions within the main valve bore to selectively direct pressurized air from the inlet port through at least one cylinder passage. A pilot valve bore is formed within the main valve member and extends coaxially relative to the main valve bore. A pair of short pilot cylinder ports spaced apart from one another extend between the main valve bore and the pilot valve bore. A pilot valve member is movable between predetermined positions within the pilot valve bore to selectively direct air from the pilot valve bore through alternating ones of the pilot cylinder ports to act upon the main valve member thereby moving the main valve member between predetermined positions.

US Patent:

47702109, Sep 13, 1988

Filed:

Jul 23, 1987

Appl. No.:

7/076793

Inventors:

James A. Neff - Birmingham MI
Richard A. Fagerlie - West Bloomfield MI

Assignee:

Mac Valves, Inc. - Wixom MI

International Classification:

F16K 2700

US Classification:

137884

Abstract:

A manifold stacking base which may selectively provide an integral flow control function, with or without a pressure regulation function, for a fluid pressure valve system, without the need for a sandwich plate or an interface plate between the base and the valve in said system.

US Patent:

48800333, Nov 14, 1989

Filed:

Dec 12, 1988

Appl. No.:

7/282752

Inventors:

James A. Neff - Birmingham MI

Assignee:

MAC Valves, Inc. - Wixom MI

International Classification:

F15B 13044

US Classification:

13762565

Abstract:

A three-way normally closed, pilot air valve for supplying pressurized pilot air to a directional flow control air valve. The valve includes a valve body structure having a pilot air inlet port, a cylinder port, an exhaust port, an axial bore therethrough. A first passageway connects the pressurized pilot air inlet port to the cylinder port. A second passageway connects the cylinder port with the exhaust port. A balanced captive poppet valve spool is movably mounted in the valve body structure axial bore for controlling the flow of air through the two passageways, and it has an upper and a lower, conical annular, valve member element, which alternately seat on a circular sharp edged valve seat and an angled valve seat, respectively.

US Patent:

47702095, Sep 13, 1988

Filed:

Jul 23, 1987

Appl. No.:

7/076779

Inventors:

James A. Neff - Birmingham MI

Assignee:

Mac Valves, Inc. - Wixom MI

International Classification:

F16K 1100

US Classification:

137884

Abstract:

A valve base for a fluid pressure valve system which is provided with integral exhaust flow control valve means which may be selectively mounted in an end of the valve base, or in a side of the valve base, or with an exhaust flow control valve means in an end of the valve base and another exhaust flow control valve means in a side of the valve base.

US Patent:

51367742, Aug 11, 1992

Filed:

Dec 9, 1991

Appl. No.:

7/804001

Inventors:

James A. Neff - Birmingham MI

Assignee:

Mac Vales, Inc. - Wixom MI

International Classification:

H01F 4100

US Classification:

296021

Abstract:

A direct solenoid operated poppet valve having an adjustable valve seat that provides a selectively variable flow orifice for supplying a preset air flow requirement. The poppet valve spool stroke is set in accordance with the preset air flow requirement. Then, based on the measured poppet location with respect to the solenoid pole piece, a solenoid push pin is selected that provides the minimum solenoid stroke required for the preset valve stroke and preset air flow requirement.

US Patent:

51929368, Mar 9, 1993

Filed:

Aug 22, 1991

Appl. No.:

7/748457

Inventors:

James A. Neff - Birmingham MI
Richard A. Fagerlie - West Bloomfield MI
Eric P. Janssen - Howell MI
Michael E. Robert - Union Lake MI

Assignee:

Mac Valves, Inc. - Wixom MI

International Classification:

H01F 300
H01F 708

US Classification:

335281

Abstract:

A solenoid having a bobbin with a rectangular core hole in which is mounted an armature having a rectangular cross section, and a pole piece having a rectangular cross section. The bobbin has a magnet wire coil wound around a bobbin tubular body which is rectangular in cross section. The bobbin has an upper flange and a lower flange that encloses the ends of the coil. A tubular can is seated around the bobbin. A top flux plate is seated on the upper can surface and a bottom flux plate is seated under the lower can surface. The flux plates are secured to the bobbin flanges. A sealing, electrical insulating heat dissipating material is disposed inside of the tubular can which seals the coil and insulates the coil from the flux plates, tubular can and solenoid mounting screws.

US Patent:

48565601, Aug 15, 1989

Filed:

Dec 5, 1988

Appl. No.:

7/280307

Inventors:

James A. Neff - Birmingham MI
Richard A. Fagerlie - West Bloomfield MI

International Classification:

F10K 7700

US Classification:

137884

Abstract:

A four port, individual, valve base for a fluid pressure valve system which is provided with a pair of integral exhaust flow control valves mounted in one end of the valve base, which meter the exhaust from a pair of exhaust inlet ports formed in the top surface of the valve base into a common exhaust passage, which communicates with a single exhaust outlet port formed in the front surface of the valve base. An electrical junction box is formed in the other end of the valve base.

US Patent:

60951842, Aug 1, 2000

Filed:

Jun 30, 1999

Appl. No.:

9/340265

Inventors:

James A. Neff - Bloomfield MI
Richard A. Fagerlie - New Smyrna Beach FL

Assignee:

Mac Valves Inc. - Wixom MI

International Classification:

F16K 3112

US Classification:

137488

Abstract:

An integrated pneumatic pressure regulator assembly including a housing having an inlet adapted for fluid communication with a supply of pneumatic pressure, an outlet adapted for fluid communication with at least one pneumatically actuated device and an exhaust port. A pilot regulator valve is in fluid communication with the inlet and is operable to provide a pilot pressure. A pilot operated regulator valve is also provided in fluid communication with the inlet and the outlet. The pilot operated regulator valve is responsive to the pilot pressure to regulate the supply pressure from the inlet to a predetermined system pressure delivered through the outlet to a pneumatically actuated device during normal operation. An adjustable flow valve in fluid communication with the outlet is responsive to pilot pressure during initial actuation of a pneumatically actuated device to increase the pressure delivered to the outlet at a predetermined rate until the pressure at the outlet has substantially reached the predetermined system pressure. An exhaust valve is in fluid communication with the outlet and is operable to exhaust the system pressure through the exhaust port during shutdown of the pneumatically actuated device.