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:
May. 26, 2015
Filed:
Oct. 18, 2012
Applicant:
The Boeing Company, Chicago, IL (US);
Inventors:
John F. Stickelmaier, Manhattan Beach, CA (US);
Philip D. Nguyen, Seal Beach, CA (US);
Assignee:
THE BOEING COMPANY, Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03H 1/00 (2006.01); B64G 1/40 (2006.01);
U.S. Cl.
CPC ...
F03H 1/0043 (2013.01); B64G 1/405 (2013.01);
Abstract
Thruster grid clear circuits and methods to clear thruster grids are disclosed. An example apparatus includes a low voltage grid clear circuit to apply first energy to a grid at a first voltage, and a high voltage grid clear circuit to detect a failure of the applied energy to clear a short circuit condition of the grid and to apply second energy to the grid at a second voltage higher than the first voltage.