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:
Mar. 02, 2004
Filed:
Dec. 04, 2002
Miloslav Novak, Glenshaw, PA (US);
Andrew B. Trageser, Pittsburgh, PA (US);
Russell S. Long, Murrysville, PA (US);
Jerri F. McMichael, New Kensington, PA (US);
Eric F. M. Winter, Pittsburgh, PA (US);
Kenneth B. Balazic, Bethel Park, PA (US);
Alcoa Inc., Pittsburgh, PA (US);
Abstract
A two layer door is provided. The first layer is made of a plurality of metallic members with a portion of the metallic members having one or more channels adapted to receive one or more armor panels. The second layer is made of the channels of the metallic members and armor panels disposed within the channels. The door also has one or more pivotally attached panels to the door that are adapted to open at a preselected pressure differential across the door. The door is also available as a kit.