The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 25, 1988

Filed:

Apr. 15, 1983
Applicant:
Inventor:

William L Pringle, Grosse Pointe Shores, MI (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D / ;
U.S. Cl.
CPC ...
72316 ; 72317 ; 72370 ;
Abstract

An apparatus (10) for flaring an end portion (14) of a deformable tube (16), the end portion (14) having an annular burr (18) extending into the tube (16), the apparatus including a conical projection (20) for flaring the end portion (14) of the tube (16) when the tube (16) is forced thereon and characterized by the conical projection being of a predetermined radius and having a predetermined slope for engaging the burr (18) as the end portion (14) of the tube (16) is forced onto the conical projection (20) to force the burr (18) into the inner surface of the flared end portion (14). A method of flaring the end portion (14) is provided and includes the steps of flaring the end portion (14) and forcing the burr (18) into the inner surface of the flared end portion (14) to form a flared end portion (14) having a rounded edge and a substantially uniform wall thickness.


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