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:
Apr. 21, 1987
Filed:
Jan. 02, 1985
Applicant:
Inventor:
Pierre Peytavin, Neuilly-sur-Seine, FR;
Assignee:
Vallourec, , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21B / ;
U.S. Cl.
CPC ...
72 44 ; 72208 ; 72214 ;
Abstract
The method consists of a cold pilger mill to effect a recoil movement of the chuck upstream followed by a return to its original position, at least once per rolling cycle. The period during which the mandrel is withdrawn with respect to its rolling position is used advantageously for example to carry out the rotation of the mandrel and/or to cause a lubricant under pressure to circulate between the mandrel and the pipe. The method is applied particularly to the rolling of pipes with a large section, with high reduction rates.
Peytavin, Pierre. (1987). Method permitting the increase of operations of cold pilger mills and an (U.S. Patent No. 4658617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4658617
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile