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:
Nov. 16, 2010
Filed:
Dec. 12, 2007
James Patrick Kapinski, Pittsburgh, PA (US);
David Jonathan Hall, Pittsburgh, PA (US);
Dennis Pavlik, Pittsburgh, PA (US);
Thomas Andrew Lemak, McKeesport, PA (US);
James Patrick Kapinski, Pittsburgh, PA (US);
David Jonathan Hall, Pittsburgh, PA (US);
Dennis Pavlik, Pittsburgh, PA (US);
Thomas Andrew Lemak, McKeesport, PA (US);
Curtiss-Wright Electro-Mechanical Corporation, Cheswick, PA (US);
Abstract
Systems and methods for improving the current pulse from multiple pairs of pulsed alternators used for driving large loads such as an electromagnetic launcher (i.e., 'rail gun') load. Conventional current pulse ripples are reduced by interleaving pulses from multiple pairs of contra-rotating pulsed alternators. Current pulses supplied by different pairs of pulsed alternators are timed so that they are interspersed between one another to provide more pulses for a given launch time. The interleaved current pulses increase the frequency and reduce the magnitude of the ripple on the average load current.