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:
Sep. 18, 1990
Filed:
Apr. 06, 1989
Applicant:
Inventor:
Alfred E Primm, Santa Ana, CA (US);
Assignee:
Shiley, Inc., Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B06B / ; B29C / ; B29C / ;
U.S. Cl.
CPC ...
264 23 ; 264 68 ; 264130 ; 264230 ; 2642888 ; 2642896 ; 264296 ; 264322 ; 26433114 ; 2643 / ; 264127 ; 4251742 ; 623-1 ; 623901 ;
Abstract
PTFE vascular tubing is guided on to a tapered ultrasonic horn as the horn is oscillating at a high frequency. This action causes the end of the tubing moved onto the horn to expand. The expanded tubing is then positioned on a mandrel having a desired shape, such as tapered, and resintered. The finished tubing with an expanded diameter on one end and a non-expanded diameter on the other end is then removed from the mandrel, and is ready for use. Untapered tubing can also be radially expanded by this method to provide a thinner wall.