Wood fastener
OwnerMichael A. Kochheiser, Jeff Bentinventors
Life of this patent
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Abstract
Fasteners are provided that include a head and having a head, a tip end having a tip, a first body portion having right-hand threads, and a second body portion having left-hand threads. The first body portion is adjacent to the tip end of the fastener and extends a first distance along a length of the fastener towards the head end. The second body portion is adjacent to the first body portion, and extends the head end of the fastener and extending a second distance along the length of the fastener towards the head end. The right-hand threads, and the left-hand threads, can have a pitch angle α of less than about 60°.
Claims18
A fastener comprising:
- a head and having a head;
- a tip end having a tip;
- a first body portion that is adjacent to the tip end of the fastener and extends a first distance along a length of the fastener towards the head end, the first body portion including right-hand threads having a pitch angle α of less than about 60°;
- and
- a second body portion that is adjacent to first body portion and extends a second distance along the length of the fastener towards the head end, the second body portion including left-hand threads.
A fastener comprising:
- a head and having a head;
- a tip end having a tip;
- a first body portion that is adjacent to the tip end of the fastener and extends a first distance along a length of the fastener towards the head end, the first body portion including right-hand threads having a pitch angle α from about 20° to about 40°;
- and
- a second body portion that is adjacent to first body portion and extends a second distance along the length of the fastener towards the head end, the second body portion including left-hand threads having a pitch angle α from about 20° to about 40°.
A method of installing a fastener to secure a metal panel to a wood structural element is provided that comprises the steps of
- creating a bur of metal as a tip of the fastener penetrates the metal panel;
- causing an area of the metal panel immediately surrounding the fastener to pull away from the wood structural element as right-hand threads on a first body portion of the fastener pass through the metal panel;
- removing the bur of metal as the fastener passes through the metal panel;
- pushing the area of the metal panel towards the wood structural element as left-hand threads on a second body portion of the fastener pass through the metal panel;
- and
- contacting the wood structural element with the area of the metal panel prior to the area of the metal panel being contacted with a head of the fastener or a sealing washer adjacent to the head of the fastener.
Dependencies are inferred from the claim text.