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. 10, 1986
Filed:
Jan. 23, 1985
Sigurd J Stromme, Holmestrand, NO;
.ANG.rdal Og Sunndal Verk A.S., Oslo, NO;
Abstract
When strips are cut from a coil of sheet material, they may differ in length because of differences in thickness across the sheet. These differences in length are accommodated by the slit strips being wound by separate rotational forces. Recoiler mandrels are divided into sections mounted on the same shaft and each having a hydraulic unit. Each hydraulic unit includes a pressure side and a suction side, the pressure sides of all of the hydraulic units being connected, and the suction sides of all of the units being connected, thereby forming a closed hydraulic system wherein increased pressure in one hydraulic unit due to increased tension on the respective mandrel section is balanced by the remaining hydraulic units and respective mandrel sections.