US PATENT SUBCLASS 227 / 55
.~ Heading tool extends within hollow portion of member

Current as of: June, 1999
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227 /   HD   ELONGATED-MEMBER-DRIVING APPARATUS

51  DF  WITH MEANS TO HEAD MEMBER {5}
55.~ Heading tool extends within hollow portion of member {4}
56  DF  .~.~> Simultaneously used heading tools
57  DF  .~.~> With work feed means
58  DF  .~.~> With means to form opening in work for member {1}
60  DF  .~.~> With pilot pin

DEFINITION

Classification: 227/55

(under subclass 51) Device wherein a portion of the heading means, before initial contact of the means with the member, projects into a void space within the confines of the shank

of the member.

(1) Note. A hollow shank member for the purposes of this subclass includes those members that have an opening extending through their entire length (e.g., tubular rivet) as well as those members that have only a recess in the end portion which does not extend entirely through the member. A simple "split" rivet is not regarded as a hollow member within the meaning of the subclass definition.