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.
Patent No.:
Date of Patent:
Jul. 14, 1987
Filed:
Aug. 15, 1986
Applicant:
Inventor:
Donald E Miller, Adrian, MI (US);
Assignee:
Brazeway, Inc., Adrian, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ; B23D / ;
U.S. Cl.
CPC ...
2915 / ; 29 3 / ; 83192 ; 83188 ;
Abstract
Method and apparatus for forming intruded sleeves in extrudable metal tubing thereby to receive branch tubes which are brazed in place. The apparatus comprises a split mandrel and a punch which drives a punch head through the tube wall section and into a pocket in the upper section of the mandrel to form the intruded sleeve structure. Removal of the mandrel is accomplished by removing a lower section, dropping the upper section off of the intruded sleeves, and thereafter removing the upper section.