Harry E Soderstrom

US Patent:

8087914, Jan 3, 2012

Filed:

Mar 30, 2009

Appl. No.:

12/414179

Inventors:

Harry Soderstrom - Marietta GA, US

International Classification:

F03C 2/00
F03C 4/00
F04C 18/00

US Classification:

4182065, 418132, 4182061, 4182066

Abstract:

An improved positive displacement pump provides improved wear characteristics. Specifically, rotor pads are provided on faces relative to an internal portion of the rotor housing as it relates to an end wall and a rear side of a cover plate. The rotor pads preferably have at least one of anti-galling and/or anti-friction or anti-wear characteristics thereby providing improvements over the prior art. A central member is preferably provided so that pad replacement may be relatively easily performed in the field in clean in place operations.

US Patent:

8162625, Apr 24, 2012

Filed:

Sep 22, 2009

Appl. No.:

12/564351

Inventors:

Harry Soderstrom - Marietta GA, US

International Classification:

F04B 17/03
F01C 1/16

US Classification:

417360, 4174104, 4182011

Abstract:

A pump, reduction gear, motor combination wherein the reduction gear and pump have nesting shafts internal to at least one of the housings of the pump and reduction gears. The housings meet at cooperating front and rear flanges having a plurality of bores therethrough, and selection from a number of orientations is possible whereby a pump outlet can be selectively oriented at a number of predetermined orientations relative to the reduction gears. The reduction gears also preferably provide a base spaced from the front flange which provides for mounting to a support to thereby suspend the motor cantileveredly from the reduction gears.

US Patent:

D659716, May 15, 2012

Filed:

Oct 11, 2011

Appl. No.:

29/403778

Inventors:

Harry Soderstrom - Marietta GA, US

International Classification:

1502

US Classification:

D15 7

US Patent:

D672787, Dec 18, 2012

Filed:

Dec 30, 2011

Appl. No.:

29/409944

Inventors:

Harry Soderstrom - Marietta GA, US

International Classification:

1502

US Classification:

D15 7

US Patent:

D609595, Feb 9, 2010

Filed:

May 4, 2009

Appl. No.:

29/336406

Inventors:

Harry Soderstrom - Marietta GA, US

International Classification:

1502

US Classification:

D11 7

US Patent:

20200224664, Jul 16, 2020

Filed:

Jan 13, 2020

Appl. No.:

16/740734

Inventors:

- Boca Raton FL, US
Harry Soderstrom - Marietta GA, US

International Classification:

F04D 29/044
F04D 13/06
F04D 13/02

Abstract:

Mobile means of transport () with a pump apparatus () and mobile pump apparatus () for use in mobile means of transport () such as semitrailers, tank trailers, tank semitrailers (), tank trucks and trucks (), comprising a drive motor () and a rotary piston pump (). The drive motor () comprises a motor shaft () for driving the rotary piston pump (). The rotary piston pump () comprises a housing () and two pump openings () configured thereon, one of which serves as a pump inlet () and the other, as a pump outlet ().The rotary piston pump () comprises at least two rotor units () rotatably accommodated in the housing () in a pump chamber () for conveying a fluid from the pump inlet () to the pump outlet (). The two rotor units () are accommodated on rotatably mounted rotor shafts (), each rotor shaft () being equipped with a rotor gear wheel () arranged outside the pump chamber (). A drive pinion () of a drive shaft () of the rotary piston pump () is coupled to one of the rotor gear wheels (). The motor shaft () of the drive motor () has a recess () at its front end (), where the drive shaft () of the rotary piston pump () is accommodated and coupled to the drive shaft ().