Metal working – Method of mechanical manufacture – Structural member making
Reexamination Certificate
2006-02-10
2008-10-14
Bryant, David P. (Department: 3726)
Metal working
Method of mechanical manufacture
Structural member making
C029S897300, C029S897350, C029S243500, C029S243580, C072S451000, C072S409120, C072S325000, C030S226000, C052S528000, C052S537000
Reexamination Certificate
active
07434314
ABSTRACT:
A punching tool for forming an attachment in a side-lapped seam of steel decking includes four cutting jaws each having a cutting edge. Two jaws are positioned against one side of the seam, and two jaws are positioned on the opposite side of the seam. An actuator selectively pivots the cutting edges of opposing jaws generally toward each other to a closed position, driving the cutting edges of a first pair of jaws partially past each other for cutting a first slot through the seam, and driving the cutting edges of a second pair of jaws partially past each other for cutting a second slot through the seam. Also disclosed are a method for forming such an attachment, as well as the attachment structure which results therefrom.
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ICBO Evaluation Report ER-5439, Reissued May 1, 2001, “Attexor Spot Clinch Connection of Cold-Formed Structural Members”, ICBO Evaluation Service, Inc.
ICBO Evaluation Report ER-2078P (Excerpt), Reissued Dec. 1, 2002, “Verco Steel Decks”, ICBO Evaluation Service, Inc., pp. 1-8.
Verco Punchlok® System Product Brochure, published more than one year prior to filing of present application.
Verco Technical Report, “A New Deck Sidelap Connector—With A Punch”, by Virgil R. Morton, Staff Engineer, Verco Manufacturing Company, published more than one year prior to filing of present application.
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The Delta Grip System, ASC Steel Deck, Aug. 2002.
Delta Grip Addendum to catalog.
Bryant David P.
Cahill von Hellens & Glazer, P.L.C.
Taousakis Alexander P
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