Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – With hole forming means
Reexamination Certificate
2007-08-27
2009-02-24
Batson, Victor (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
With hole forming means
C411S034000, C411S037000, C411S055000, C411S059000
Reexamination Certificate
active
07494310
ABSTRACT:
A self-anchoring fastening device for installation in supports for hanging pipes wires or other articles in ceilings is shaped for a socket to drive the device for an easy installation process. The device comprises a collapsible anchoring portion having radially expanding anchoring strips, which will not pull out of a hole drilled in a support. A drill drills a hole in a support and an expandable anchor is inserted through the hole. Threads internal to the expandable anchor cooperate with threads on a screw inserted therein to collapse the expandable anchor, providing anchoring strips over the hole such that the expandable anchor cannot be pulled out of the hole. A threaded portion of the base of the screw is suitable for attaching the article to be hung. The base may be a swivel head type. The drill may be on the expendable anchor assembly.
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Bodin Richard G.
Kolodziej Nobert K.
Batson Victor
Mersereau C. G.
Nikolai & Mersereau , P.A.
Reese David C
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