Metal working – Method of mechanical manufacture – Structural member making
Reexamination Certificate
2007-07-13
2009-11-17
Bryant, David P (Department: 3726)
Metal working
Method of mechanical manufacture
Structural member making
C156S257000, C156S042000, C156S254000, C156S264000
Reexamination Certificate
active
07617606
ABSTRACT:
A method for making the core of a door of autoclaved aerated concrete (AAC). A billet of AAC is provided from which slabs are cut to the approximate dimensions of the door core. A reinforcing band is secured about the perimeter of a slab or a pair of slabs sandwiching a reinforcing panel. The thickness of the slab, or the pair of slabs and reinforcing panel, is then sized for the door core as by sanding. The door is finished by applying skins to the core surfaces and trim to the reinforcing band.
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Robbins, Jr. Gary
Robbins, Sr. Gary
Bryant David P
Inno-Tech Plastics, Inc.
Walters Ryan J
Wood Phillips Katz Clark & Mortimer
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