The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2006
Filed:
Jun. 19, 2003
Applicants:
Douglas Riggins, Dallas, TX (US);
Angelynn G. Price, Dallas, TX (US);
John F. Puente, Keller, TX (US);
Inventors:
Douglas Riggins, Dallas, TX (US);
Angelynn G. Price, Dallas, TX (US);
John F. Puente, Keller, TX (US);
Assignee:
Waukesha Electric Systems, Incorporated, Waukesha, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter apparatus suitable for electrical substation high-voltage transformer tap changers and similar oil-filled equipment removes moisture and other contaminants from the insulating oil bath in which the tap contacts are immersed. The apparatus can be configured and subsequently reconfigured for use with any of a variety of filter media using a common pump and control mechanism and an assortment of adapters.