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US 4,355,466 AGranted
Punching tool having replaceable tips
OwnerMichael S. Quiringinventor
Life of this patent
Estimating the term…
Abstract
A punching tool having a solid barrel adapted for hand holding, and having at one barrel end a head for hammering, and at the other barrel end a tapered neck. A threaded nut is removably attached to the barrel intermediate the neck and second barrel end. A plurality of attachment tips are provided, each having an internal tapered bore sized to fit over the tapered neck of the second barrel end, and each is removable by rotation of the threaded nut on the barrel.
Claims8
A punching tool adapted for accepting a plurality of punch tips, and a punch tip therefor, comprising:
- (a) a punch body having a first end adapted for hammering, and having a second end formed into a decreasing conical taper;
- (b) a threaded section on said punch body immediately adjacent said second end taper, and a nut threadably fastened only on said punch body for removing said tip by engagement of a facing surface of said nut with an end face of said punch tip;
- and
- (c) said punch tip having a conical recess therein, the depth of said recess being greater than the length of said punch body taper.
1 more element
Dependencies are inferred from the claim text.