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US 4,058,047 AGranted
Clamp nail
AssigneeSenco Products, Inc.
InventorsFrancis J. Kramer, Robert G. Rothfuss, William C. Wise
Life of this patent
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AssigneeSenco Products, Inc.
InventorsFrancis J. Kramer, Robert G. Rothfuss, William C. Wise
Estimating the term…
A clamp nail for joining two wood members tightly together by driving the nail endwise into the two members across the joint. The major length of the nail is in the form of a channel having a web and parallel upstanding flanges along both sides of the web. The web has at least two holes, leaving a central column member. The channel has a tapered transition section which may commence at the leading edge of the nail in the driving direction, or it may join a shorter channel portion at the leading edge, having a wider web and parallel upstanding flanges, to the major channel portion having a narrower web. The web is preferably bowed inwardly to bring the column member more nearly to the center of the flange height. The flange edges preferably are provided with a ledge configuration, the ledges being at a fixed distance from the back of the nail, whereby a plurality of like clamp nails may be stacked in making up a stick of clamp nails capable of use in a nailing machine having a magazine to receive a stick of said nails.
A clamp nail comprising a channel having a web and marginal flanges extending in the same direction from said web, said web being of constant width over the major portion of its length, and having a relatively short tapered portion which is wider at its leading end in the direction of driving, said flanges extending along the entire length of the nail, including said major portion and said tapered portion, said tapered portion converging from said wider end to said major portion, said tapered portion and converging flanges constituting a transition portion;
Dependencies are inferred from the claim text.