US PATENT SUBCLASS 29 / 432
.~.~ Punching, piercing or reaming part by surface of second part


Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
428  DF  .~ Assembling or joining {21}
432.~.~ Punching, piercing or reaming part by surface of second part {1}
432.1  DF  .~.~.~> With shaping {1}


DEFINITION

Classification: 29/432

Punching, piercing or reaming part by surface of second part:

(under subclass 428) Process in which assembling at least two parts or two portions of the same part is preceded by or includes forming or enlarging a hole in a first part by shearing, piercing, or reaming using a point or an edge on another part.

(1) Note. The step of "forming or enlarging" includes a cutting action and does not comprise only deforming, i.e., does not comprise stressing the part beyond its elastic limit.

SEE OR SEARCH THIS CLASS, SUBCLASS:

525, for a process of assembling or joining by force fitting. Forming or enlarging a hole in a part combined with force fitting the part that formed the hole with the first part is included in this and the indented subclasses (432+).

716, for means to assemble or disassemble a self-piercing work part with another part.

798, for means to assemble or disassemble including means to drive a self-piercing work part, which self-piercing part is not an "elongated member" which would be properly classified in Class 227. See the note to Class 227, below.

SEE OR SEARCH CLASS 156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

92+, for a process of assembling including the combination of adhesive bonding with use of a penetrating or piercing fastener.

227, Elongated-Member-Driving Apparatus, for apparatus to effect assembly of a first member with another member which other member is elongated and is forced to penetrate the first member. Search, especially,

19+, for juxtaposing work parts and applying a fastening member, e.g., a nail, a rivet, etc., thereto.