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:
Jun. 01, 1999
Filed:
Nov. 12, 1997
Peter Krausser, Furth, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
An apparatus for expanding a tube includes a probe to be introduced into the tube. The probe includes an elastic expansion sleeve that can be acted upon by a pressure medium over at least a portion of its inner surface. The expansion sleeve is provided on its outer periphery with a support ring which is supported on a shoulder of the probe that surrounds the expansion sleeve. The support ring is formed by at least two partial segments that are movable relative to one another. This assures that the support ring can reversibly follow a change in diameter that takes place when the expansion sleeve is expanded, thereby preventing the expansion sleeve from being pinched and caught in a gap located between the tube and the probe.