Richard D Gardner

US Patent:

6571680, Jun 3, 2003

Filed:

Apr 24, 2001

Appl. No.:

09/841680

Inventors:

Richard K. Gardner - Montpelier OH

Assignee:

Ingersoll-Rand Company - Woodcliff Lake NJ

International Classification:

F01L 1516

US Classification:

91298, 91320, 91323

Abstract:

A pneumatic motor having a motor body having a main piston chamber with opposed first and second chamber ends, at least two spool chambers in fluid communication with the main piston chamber, an inlet for flowing a pressurized fluid into each of the at least two spool chambers, and an outlet provided in the housing for exhausting the pressurized fluid from the main piston chamber and each of the spool chambers. At least two spool members are in the two spool chambers, with each spool member adapted to be movable in a first direction to permit pressurized fluid to be supplied to the main piston chamber and also in a second direction to permit the pressurized fluid to be exhausted from the main piston chamber. A piston member is movable in a reciprocating manner in the main piston chamber in response to movement by the spool members. The piston has first and second piston ends and an annular piston chamber located between and in fluid communication with the first and second chamber ends, the first and second piston ends defining, with the first and second chamber ends, a first chamber and a second chamber, respectively, in the main piston chamber during reciprocation of the piston.

US Patent:

7025578, Apr 11, 2006

Filed:

May 7, 2003

Appl. No.:

10/431279

Inventors:

Richard Gardner - Montpelier OH, US

Assignee:

Ingersoll-Rand Company - Woodcliff NJ

International Classification:

F01L 15/18
F04B 17/00

US Classification:

417395, 91329

Abstract:

A pump comprising a valve housing and a spool slidably positioned within the valve housing. The spool has a supply face, a first end face, and a second end face, and is slidable between a first position wherein pressurized supply air is supplied to the supply face and the first end face, the first end face having a greater surface area than the supply face, a second position wherein the supply air is supplied to the supply face and is blocked from both the first and second end faces, and a third position wherein the supply air is supplied to the supply face and the second end face.

US Patent:

56477376, Jul 15, 1997

Filed:

Feb 20, 1996

Appl. No.:

8/604148

Inventors:

Richard K. Gardner - Montpelier OH
Roger D. Wieland - Bryan OH
Mark D. Jermeay - Farmer OH

Assignee:

Ingersoll-Rand Company - Woodcliff Lake NJ

International Classification:

F04B 5322

US Classification:

417454

Abstract:

A reciprocating pump, comprising a reciprocating motor having a housing body which includes an open first end and a base at the first end, the base substantially closes the first end of the motor housing. The motor also includes a reciprocating member movable by the motor. The member has an end and is adapted to be movable through a housing body chamber. The reciprocating pump includes a pump outlet having a first end, a second end, a pumped fluid outlet port between the ends, and a passageway joining said ends and adapted to receive the end of the reciprocating member. The passageway has a minimum width and the outlet body is connected to the pump base. The reciprocating pump also includes a pump member adapted to be flow connected to the second end of the outlet body. The pump member has a movable check for displacing the pumped fluid to the outlet, said movable check being operatively connected to said end of said reciprocating member and said check also having a width that is less than the minimum width of the passage so that the check is serviceable with the reciprocating pump in line.

US Patent:

48954942, Jan 23, 1990

Filed:

Jul 15, 1988

Appl. No.:

7/219188

Inventors:

Richard K. Gardner - Montpelier OH

Assignee:

The ARO Corporation - Bryan OH

International Classification:

F04B 1900
F04B 3910

US Classification:

417239

Abstract:

A double acting diaphragm pump includes a flat valve construction which is reversible to provide valving for both the inlet and outlet to the pumping chamber. A modular manifold construction cooperates with the flap valve construction to facilitate ease of replacement of the flap valve construction and case of repair of the diaphragm pump.

US Patent:

59512598, Sep 14, 1999

Filed:

Jun 16, 1997

Appl. No.:

8/876521

Inventors:

Richard K. Gardner - Montpelier OH
Leo J. Schlachter - Edgerton OH

Assignee:

Ingersoll-Rand Company - Woodcliff Lake NJ

International Classification:

F04B 300
F04B 500
F04B 704

US Classification:

417254

Abstract:

A reciprocating pump, including: a hollow tube having a first end; a hollow foot valve connected to the tube, the tube and foot valve defining a chamber, said foot valve having a first foot valve end and at least one inlet port formed at the first foot valve end; reciprocating member adapted to be movable in the chamber along a path defined by an axis; drive motor for moving the reciprocating means between a first retracted position and a second extended position; and a primer element connected to the reciprocating means, said primer element having a first dimension and a second dimension, said second dimension being equal to at least half of the first dimension.

US Patent:

55864805, Dec 24, 1996

Filed:

Feb 20, 1996

Appl. No.:

8/604147

Inventors:

Richard K. Gardner - Montpelier OH

Assignee:

Ingersoll-Rand Company - Woodcliff Lake NJ

International Classification:

F01B 720
F15B 1108

US Classification:

91169

Abstract:

A pneumatic motor including a motor body having a piston chamber with opposed chamber ends, at least two valve chambers, an inlet for flowing a pressurized fluid into the piston chamber and each of the at least two valve chambers, a number of outlets provided in the housing for exhausting the pressurized fluid from the piston chamber and each of the at least two valve chambers. The motor also includes a three-way valve member adapted to be located in each of the at least two valve chambers, the valve members each have at least one open end and at least one port formed along the valve member body. A spool member is located in one of the valve chambers, each spool member has a first end adapted to be located in the open end of the valve member. The spool members are adapted to be movable in a first direction relative to the valve member to permit pressurized fluid to be supplied to the piston chamber and also in a second direction relative to the valve member to permit the pressurized fluid in the piston chamber to be exhausted from the chamber. A piston is movable in a reciprocating manner in the main chamber in response to movement by the spools relative to the three-way valve members.

US Patent:

53340035, Aug 2, 1994

Filed:

Jan 25, 1993

Appl. No.:

8/008443

Inventors:

Richard K. Gardner - Montpelier OH
Gordon M. Schroeder - New Bavaria OH

Assignee:

The Aro Corporation - Bryan OH

International Classification:

F04B 4306

US Classification:

417393

Abstract:

A double diaphragm pump subassembly, having a pair of diaphragm mounting plates, wholly confines an air valving mechanism between the plates. The mechanism is modular in nature, being substantially devoid of fasteners, and is nested in the plates for easy removal and parts replacement.

US Patent:

55271600, Jun 18, 1996

Filed:

Oct 11, 1994

Appl. No.:

8/320811

Inventors:

Nicholas Kozumplik - Bryan OH
Richard K. Gardner - Montpelier OH

Assignee:

The Aro Corporation - Bryan OH

International Classification:

F04B 4900
F04B 4310
F04B 4306

US Classification:

417 46

Abstract:

A pneumatic assist valve receives constant air pressure from supply air to provide the pneumatic assist to shift the pilot, eliminating false signals acting on the trip rod and the design also assures the pilot has completely shifted before diaphragm reversal occurs.