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.

Date of Patent:
Dec. 25, 2012

Filed:

Jul. 16, 2010
Applicants:

Steven R. Walther, Andover, MA (US);

Gerald M. Friedman, New Ipswich, NH (US);

Michael L. Bufano, Belmont, MA (US);

Inventors:

Steven R. Walther, Andover, MA (US);

Gerald M. Friedman, New Ipswich, NH (US);

Michael L. Bufano, Belmont, MA (US);

Assignee:

Hitachi Zosen Corporation, Suminoe-Ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 33/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

An exit window can include an exit window foil, and a support grid contacting and supporting the exit window foil. The support grid can have first and second grids, each having respective first and second grid portions that are positioned in an alignment and thermally isolated from each other. The first and second grid portions can each have a series of apertures that are aligned for allowing the passage of a beam therethrough to reach and pass through the exit window foil. The second grid portion can contact the exit window foil. The first grid portion can mask the second grid portion and the exit window foil from heat caused by the beam striking the first grid portion.


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