Method and apparatus for fastening together structural...

Details Method and apparatus for fastening together structural... Method and apparatus for fastening together structural...

2006-01-31

2006-01-31

Hong, John C. (Department: 3726)

Metal working

Means to assemble or disassemble

With magazine supply

C029S809000

Reexamination Certificate

active

06990731

ABSTRACT:
A method and apparatus for fastening a first relatively soft structural component such as a wood panel to a second relatively hard structural component such as a steel angle iron using fasteners each having a forward self-drilling portion, a rearward, self-tapping portion, and an outwardly projecting head. The fasteners are driven by a pneumatic rotary impact driver and the method comprises rotatively driving each fastener so as to cause its self-drilling portion to drill a first hole through the wood panel and thereafter rotatively driving and impacting that fastener so as to cause its self-drilling portion to drill a second hole in the angle iron and its self-tapping portion to form a screw connection with the angle iron around the second hole.

REFERENCES:
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patent: 3803840 (1974-04-01), Toczycki
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patent: 5645208 (1997-07-01), Haytayan
patent: 5984096 (1999-11-01), Shinjo
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Muro North America, Autofeed Screwdriver Systems, website printout of screws.
Muro North America, Autofeed Screwdriver Systems, website printout of FLVL41 Power Driver.

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