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US 7,581,912 B2Granted
Fastener having a vaned shaft
OwnerJeff Lloydinventor
Life of this patent
Estimating the term…
Abstract
Described is a fastener having a longitudinal shank designed with a central cross-member; two arms, one at each end of the cross-member; each arm having a forward vane and a rearward vane, the vanes extending longitudinally along at least most of the length of the shank. A flattened head is at one end of the shank, and a pointed end at the other. The head may be notched for ease in collating the fasteners.
Claims12
A fastener device comprising:
- an elongated shank having a head at one end and a sharpened tip at the opposite end, the shank having a central planar cross-member with a front face and a rear face;
- first and second forward vanes extending from tbe front face of said cross-member, one at each elongate edge of the front face;
- and
- first and second rearward vanes extending from the rear face of said cross member, one at each elongate edge of the rear face;
- such that the external surfaces of the first forward vane and the first rearward vane are contiguous and form an obtuse angle, and the external surfaces of the second forward vane and the second rearward vane are contiguous and form an obtuse angle;
- wherein the junction of the external surfaces of the first forward and rearward vanes forms an angle of about 155° and the junction of the external surfaces of the second forward and rearward vanes forms an angle of about 155°.
3 more elements
A Fastener device comprising:
- an elongated shank having a head at one end and a sharpened tip at the opposite end, the shank having a central planar cross-member with a front face and a rear face;
- first and second forward vanes extending from the front face of said cross-member, one at each elongate edge of the front face;
- and
- first and second rearward vanes extending from the rear face of said cross-member, one at each elongate edge of the rear face;
- such that the external surfaces of the first forward vane and the first rearward vane are contiguous and form an obtuse angle, and the external surfaces of the second forward vane and the second rearward vane are contiguous and form an obtuse angle;
- wherein said head further comprises a notch positioned between the rearward vanes, the dimensions of said notch being sufficient to accommodate at least a portion of the forward vanes of a second fastener device, such that when the notch accommodates the forward vanes of the second fastener device, the forward vanes of the second fastener device are positioned substantially between the rearward vanes of the first fastener device and the fasteners are thereby collated.
3 more elements
A fastener device comprising:
- an elongated shank having a flattened head at one end and a sharpened tip at the opposite end, the shank having a central planar cross-member with a front face and a rear face;
- two forward vanes extending from the front face of said cross-member, one at each elongate edge of the front face;
- and
- two rearward vanes extending from the rear face of said cross-member, one at each elongate edge of the rear face;
- wherein said head further comprises a notch positioned between the rearward vanes, the dimensions of said notch being sufficient to accommodate at least a portion of the forward vanes of a second fastener device, such that when the notch accommodates the forward vanes of the second fastener device, the forward vanes of the second fastener device are positioned substantially between the rearward vanes of the first fastener device and the fasteners are thereby collated.
2 more elements
Dependencies are inferred from the claim text.