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:
Jun. 08, 1999

Filed:

Mar. 21, 1997
Applicant:
Inventor:

Hans Oetiker, Horgen, CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ; B21D / ;
U.S. Cl.
CPC ...
29 3 / ; 29243517 ; 72398 ; 72403 ;
Abstract

A method and machine for manufacturing compression rings in which flat band material is fed to a stamping station from a feed station, a blank is stamped out with a mechanical connection having male and female configurations at opposite ends, the blank is then fed to a deformation machine where it is displaced into the several axial positions of the machine in which, in a first position, the blank is predeformed into configuration permitting closing of the mechanical connection in a second position in which the blank is also deformed into its circular configuration. Preferably the thus-deformed and closed compression ring is then subjected to a swaging action in a third position before it is ejected out of the machine.


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