Michael W Keith

US Patent:

6799943, Oct 5, 2004

Filed:

Jul 24, 2002

Appl. No.:

10/181913

Inventors:

Donald W. Racer - Shelby OH
Michael L. Keith - Mansfield OH

Assignee:

The Gorman-Rupp Company - Mansfield OH

International Classification:

F04D 2970

US Classification:

415116, 415196, 415201, 415206

Abstract:

A centrifugal pump ( ) having a pump housing ( ) that defines a substantially axial inlet port ( ), a substantially radial inlet port ( ) and an outlet port ( ). An impeller ( ) is rotatable within an impeller chamber ( ) defined by the housing and is operative to pump fluid from one or both of the inlet ports to the outlet port when the impeller is rotated. A removable cleanout assembly ( ) located within and forming part of the axial port includes a structure for supporting a wear plate ( ) that is positioned axially adjacent the impeller. The cleanout assembly includes an inlet opening adapted to be configured as an axial inlet port to the pump. The cleanout assembly is removable in order to provide access to the impeller for service or cleaning. Either the axial port or the radial port can serve as an inlet or, alternately, both ports can serve concurrently as inlets to the pump. Mounting flanges ( ) associated with each inlet port are adapted to connect to inlet conduits or a cap member.

US Patent:

D534547, Jan 2, 2007

Filed:

Jan 10, 2005

Appl. No.:

29/220890

Inventors:

Donald W. Racer - Shelby OH, US
Michael L. Keith - Mansfield OH, US

Assignee:

The Gormon-Rupp Co. - Mansfield OH

International Classification:

1502

US Classification:

D15 7

US Patent:

7156614, Jan 2, 2007

Filed:

Aug 9, 2004

Appl. No.:

10/914275

Inventors:

Donald W. Racer - Shelby OH, US
Michael L. Keith - Mansfield OH, US

Assignee:

The Gorman-Rupp Company - Mansfield OH

International Classification:

F04D 29/42

US Classification:

415116, 415196, 415127, 415128, 415206, 4152131, 4152141

Abstract:

A centrifugal pump assembly that includes an inlet housing that defines a inlet chamber and at least one inlet port in fluid communication with the inlet chamber. A volute forming part of the assembly defines an outlet port. An impeller is mounted for rotation at least partially within the volute and operative upon rotation to convey fluid from the inlet port to the outlet port. The inlet housing defines mounting structure by which the inlet housing can be secured to the volute in any one of a plurality of positions with respect to the volute so that the spatial relationship between the inlet port and the outlet port can be changed by changing the relative position of the inlet housing with respect to the volute. The inlet housing also mounts a pump insert which may be either a dedicated clean-out assembly or structure defining an axial inlet port. The inlet housing defines a mounting flange that includes a plurality of symmetrically spaced apertures and the volute includes structure that is engageable with the flange and includes a plurality of symmetrically spaced bores that are alignable with the apertures formed in the mounting flange in several relative positions.

US Patent:

8123458, Feb 28, 2012

Filed:

Mar 8, 2005

Appl. No.:

10/592145

Inventors:

Donald Racer - Shelby OH, US
Michael L. Keith - Mansfield OH, US

Assignee:

The Gormann-Rupp Co. - Mansfield OH

International Classification:

F04D 9/02
F04D 1/06
F04D 29/62

US Classification:

415 561, 415 61, 415 62, 415 66, 4151221, 415123, 4151242, 4151741, 4151744, 415126, 415201, 415912, 4171992, 417244, 417362

Abstract:

A stacked pump arrangement for mixed-media flow includes a first, self-priming, centrifugal pump with a volute having an inlet and an outlet and a second straight centrifugal pump mounted to an upper portion of the first centrifugal pump, the second straight centrifugal pump also having a volute with an inlet and an outlet. A transition chamber is connected, at one end, to the first centrifugal pump volute outlet and is connected, at another end, to the second straight centrifugal pump volute inlet.

US Patent:

8128340, Mar 6, 2012

Filed:

Mar 8, 2004

Appl. No.:

10/794400

Inventors:

Donald W. Racer - Shelby OH, US
Michael L. Keith - Mansfield OH, US

Assignee:

Gorman-Rupp, Co. - Mansfield OH

International Classification:

F04D 9/02
F04D 1/06
F04D 29/62

US Classification:

415 561, 415 61, 415 62, 415 66, 4151221, 415123, 4151242, 4151741, 4151744, 415126, 415201, 415912, 4171992, 417244, 417362

Abstract:

A stacked pump arrangement for mixed-media flow includes a first, self-priming, centrifugal pump with a volute having an inlet and an outlet and a second straight centrifugal pump mounted to an upper portion of the first centrifugal pump, the second straight centrifugal pump also having a volute with an inlet and an outlet. A transition chamber is connected, at one end, to the first centrifugal pump volute outlet and is connected, at another end, to the second straight centrifugal pump volute inlet.