Charles Eric Matheson

US Patent:

RE373699, Sep 18, 2001

Filed:

Sep 2, 1999

Appl. No.:

9/389618

Inventors:

R. Douglas Hudgens - Cookeville TN
Charles L. Matheson - Cookeville TN

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

B01D 2704

US Classification:

210192

Abstract:

A coolant filter for use in filtering a coolant solution which flows through the coolant filter includes a filter housing assembly which is made up of an outer housing which is crimped to a nutplate which defines an internally threaded flow outlet. A generally cylindrical filter element is positioned inside of the filter housing assembly and a first endplate is bonded to the end of the filter element which is adjacent to the nutplate. An endplate member is provided for attachment to the opposite end of the filter element and is configured in such a way so as to define an interior chamber where supplemental coolant additive pellets are stored. A closing plate is applied across the open end of the interior chamber so as to create an enclosed chamber for the supplemental coolant additive pellets. A slow release mechanism is provided for controlling the rate of release of the supplemental coolant additive from the enclosed chamber into the coolant solution. In one embodiment of the present invention, the slow release mechanism includes a diffusion tube which defines a diffusion orifice.

US Patent:

56627998, Sep 2, 1997

Filed:

Jun 21, 1996

Appl. No.:

8/667673

Inventors:

R. Douglas Hudgens - Cookeville TN
Charles L. Matheson - Cookeville TN

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

B01D 2704

US Classification:

210192

Abstract:

A coolant filter for use in filtering a coolant solution which flows through the coolant filter includes a filter housing assembly which is made up of an outer housing which is crimped to a nutplate which defines an internally threaded flow outlet. A generally cylindrical filter element is positioned inside of the filter housing assembly and a first endplate is bonded to the end of the filter element which is adjacent to the nutplate. An endplate member is provided for attachment to the opposite end of the filter element and is configured in such a way so as to define an interior chamber where supplemental coolant additive pellets are stored. A closing plate is applied across the open end of the interior chamber so as to create an enclosed chamber for the supplemental coolant additive pellets. A slow release mechanism is provided for controlling the rate of release of the supplemental coolant additive from the enclosed chamber into the coolant solution. In one embodiment of the present invention, the slow release mechanism includes a diffusion tube which defines a diffusion orifice.

US Patent:

44401930, Apr 3, 1984

Filed:

Nov 23, 1981

Appl. No.:

6/323940

Inventors:

Charles L. Matheson - Cookeville TN

Assignee:

Cummins Engine Company, Inc. - Columbus IN

International Classification:

F16K 3700
F16K 2402

US Classification:

137558

Abstract:

A valve assembly is provided for controlled draining of a liquid accumulated in a closed vessel. The assembly includes a body member mounted on the vessel and a valve piece adjustably mounted on the body member for movement between open and closed positions. The body member has a first section extending into the vessel interior wherein the liquid accumulates, a second section secured to the vessel, and a substantially exposed third section. The first, second, and third sections are provided with a common primary passage and an independent common secondary passage. Each passage has one end terminating within the vessel interior and a second end terminating externally of the vessel. The body member first section is provided with a stationary valve seat disposed in aligned and spaced relation with respect to the primary passage one end. The valve piece includes an elongated first element slidably and sealingly mounted within the primary passage. A longitudinally extending bore open at opposite ends is formed in the first section.

US Patent:

47532661, Jun 28, 1988

Filed:

Apr 8, 1986

Appl. No.:

6/849373

Inventors:

Charles L. Matheson - Cookeville TN
Steven F. Robbins - Cookeville TN
John R. Smith - Leland IA

Assignee:

Cummins Engine Company, Inc. - Columbus IN

International Classification:

F16K 3700
F16K 2402

US Classification:

137558

Abstract:

A valve assembly is provided for controlling the flow of liquid accumulated in a closed vessel through a drain port in the bottom wall of the vessel. The assembly includes a body member having a first section disposed within the drain port. The body member has a second section extending outwardly from the first section. The first and second sections are provided with a first passage for air venting the vessel interior, a second passage for controlled draining of the accumulated liquid from the vessel interior, and a common opening, the latter having an exposed end. Adjustably mounted on the body member is a valve member having a first segment adjustably disposed with respect to the opening of the body member and a second segment projecting outwardly from the first segment and subtending the body member second section. The valve member second segment is provided with first and second passages corresponding with the first and second passages of the body member. Seal elements are provided on the body member second section and in encompassing relation with ends of the first and second passages formed in the body member.

US Patent:

46196773, Oct 28, 1986

Filed:

Dec 13, 1985

Appl. No.:

6/808877

Inventors:

Charles L. Matheson - Cookeville TN
Preston D. Lane - Cookeville TN
James V. Dieringer - Cookeville TN

Assignee:

Cummins Engine Company, Inc. - Columbus IN

International Classification:

B01D 3530

US Classification:

55510

Abstract:

A disposable air filter assembly is provided for use with, but not limited to, an internal combustion engine. The filter assembly includes a housing having a substantially spiral interior air flow passageway. The housing is of molded construction whereby the end walls thereof are initially integral with an intervening outer wall but subsequently a section of one of the end walls is severed from the remainder of the housing exposing the interior passageway. A filter member, conforming substantially to the configuration of at least a portion of the passageway is inserted therein. Subsequent to the filter member being inserted into the passageway, the separated end wall section is re-attached to the remainder of the housing. An inlet to the interior passageway is provided on the exterior of the housing whereby the air flow is in a substantially tangential direction. An outlet for the passageway downstream of the inlet is provided which communicates with the intake manifold of the engine.

US Patent:

D2980517, Oct 11, 1988

Filed:

Feb 21, 1986

Appl. No.:

6/836462

Inventors:

Charles L. Matheson - Cookeville TN
Emilio Ambasz - New York NY

Assignee:

Cummins Engine Company, Inc. - Columbus IN

US Classification:

D23365

US Patent:

51714302, Dec 15, 1992

Filed:

May 17, 1991

Appl. No.:

7/701901

Inventors:

Donald W. Beach - Cookeville TN
Udo E. Holzhausen - Cookeville TN
Lawrence B. Feldhaus - Hendersonville TN
Charles L. Matheson - Cookeville TN
Monroe L. Newton - Cookeville TN
Steve F. Robbins - Cookeville TN
William F. Langford - Cookeville TN

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

B01D 2708

US Classification:

210 94

Abstract:

This disclosure illustrates a replaceable filter assembly for fluids in which the filter has a shell formed from an injection molded threaded end and an integral blow molded closed end to form a unitary shell. A seal such as a flange is provided adjacent to the threaded end so that a pressure seal can be maintained. A filter medium is supported within the shell so as to direct fluid flow through it to remove contaminants. The shell can be formed from plastic materials such as polyester terephthalate (PET), polyether sulfone (PES), and polyether urethane (PEU). This construction enables an inexpensive filter assembly and, with transparent plastic materials, an indication of the contaminant removal activity within the filter.

US Patent:

57728739, Jun 30, 1998

Filed:

Jul 11, 1997

Appl. No.:

8/893842

Inventors:

R. Douglas Hudgens - Cookeville TN
Charles L. Matheson - Cookeville TN

Assignee:

Fleetguard, Inc. - Nashville TN

International Classification:

B01D 2704

US Classification:

210192

Abstract:

A coolant filter for use in filtering a coolant solution which flows through the coolant filter includes a filter housing assembly which is made up of an outer housing which is crimped to a nutplate which defines an internally threaded flow outlet. A generally cylindrical filter element is positioned inside of the filter housing assembly and a first endplate is bonded to the end of the filter element which is adjacent to the nutplate. A second endplate is bonded to the opposite end of the filter element and helps to define an interior space within the filter element. A supply of supplemental coolant additive is contained within an osmotic film enclosure which is positioned within the interior space. The osmotic film enclosure provides a slow release mechanism for controlling the rate of release of the supplemental coolant additive into the coolant solution. In one embodiment of the present invention, the slow release mechanism includes a diffusion tube which defines a diffusion orifice.