Pneumaticaly driven pipe swedging and flaring tools

Details Pneumaticaly driven pipe swedging and flaring tools Pneumaticaly driven pipe swedging and flaring tools

2008-07-18

2009-08-25

Jones, David B (Department: 3725)

Metal deforming

Tool and/or tool holder

Having unitary tool-face

C072S317000, C072S318000, C072S370010, C072S370060, C072S370110, C072S393000, C029S890043, C029S890044

Reexamination Certificate

active

07578161

ABSTRACT:
Tools for expanding (i.e., flaring and swedging) the ends of metal tubes are configured for attachment to a powered impact hammer, such as an air hammer. A swedging tool for swedging an end of a metal tube has a swedging body with a die section for expanding the tube when driven thereinto and a flanged shank attached to the swedging body and configured for engagement by a powered impact hammer. A flaring tool for flaring an end of a metal tube includes a flaring body having a die section for flaring the tube when driven thereinto. A flanged shank is attached to the flaring body and configured for engagement by a powered impact hammer. A method for expanding an end of a metal tube entails attaching a die body for expanding the end of the metal tube to a powered impact hammer, aligning the die body with the inner diameter of the metal tube, activating the powered impact hammer, and urging the die body a determined distance into the metal tube.

REFERENCES:
patent: 1930825 (1933-10-01), Raymond
patent: 2679681 (1954-06-01), Resler
patent: 3380285 (1968-04-01), Wilson
patent: 3504515 (1970-04-01), Reardon
patent: 4512178 (1985-04-01), Blevins et al.
patent: 4573340 (1986-03-01), Kammeraad
patent: 5189900 (1993-03-01), Colvin et al.
patent: 6695065 (2004-02-01), Simpson et al.

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