Jason Wells

US Patent:

7904267, Mar 8, 2011

Filed:

Jul 14, 2008

Appl. No.:

12/172969

Inventors:

Jason Wells - Zionsville IN, US
Marco Amrhein - Champaign IL, US

Assignee:

P.C. Krause & Associates, Inc. - Lafayette IN

International Classification:

G01C 17/38

US Classification:

702 94

Abstract:

An adaptive method and device for identification and compensation of errors in resolver output signals which can increase the accuracy of position estimates of the resolver angle is disclosed. The method utilizes the ideal orthogonal relationship of two resolver output devices to determine an error factor. The error factor is then used to correct the resolver position estimate.

US Patent:

8513829, Aug 20, 2013

Filed:

Nov 6, 2009

Appl. No.:

12/614103

Inventors:

Jason R. Wells - Zionsville IN, US
Marco Amrhein - Champaign IL, US
Eric A. Walters - Brownsburg IN, US
Steven M. Iden - Centerville OH, US

Assignee:

P.C. Krause & Associates, Inc. - West Lafayette IN

International Classification:

B60L 1/00

US Classification:

307 91

Abstract:

An electrical accumulator unit wherein an energy storage device is utilized in conjunction with an actively controlled bidirectional power converter to provide auxiliary power to an electrical network is disclosed.

US Patent:

20210129051, May 6, 2021

Filed:

Jun 6, 2019

Appl. No.:

17/253532

Inventors:

- Minneapolis MN, US
Jason A. WELLS - Indianapolis IN, US

Assignee:

Donaldson Company, Inc. - Minneapolis MN

International Classification:

B01D 29/96
B01D 35/30

Abstract:

A removable filter assembly for filtering a fluid having a particulate or a contaminant and configured to engage a filter housing having a center post. The removable filter assembly includes a filter element adapted to remove at least one of the particulate or contaminate from the fluid, wherein the filter element includes an interior wall defining a passage having a first end and a second end. A container arrangement includes a channel and an outer wall in contact with the filter element at the first end of the passage, wherein the outer wall defines an outer profile extending from the first end of the passage toward the second end of the passage. The channel defines an inner wall configured to provide a relatively fluid tight seal with the center post. The container arrangement is adapted to capture at least one of the particulate or contaminate from the fluid. The outer wall of the container arrangement can include a plurality of radially aligned ribs.