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:
Feb. 04, 1986
Filed:
Aug. 08, 1983
Donald F Wilkes, Alburquerque, NM (US);
Other;
Abstract
A rolling mill for making endless bands, preferably by cold working precipitation hardenable stainless steel, includes a stationary central work roller and a pair of moveable work rollers, each carried by a corresponding carriage. The movable work rollers are backed by intermediate and drive rollers so as to be stiff in response to bending forces. The drive rollers provide rotary motion to all rollers. By elastically distorting a preform and then rolling it in the peripheral direction, the band is cold worked to a desired thickness. The preform may be obtained by parting an annular ring from tubular stock. Subsequent precipitation hardening of the cold worked band produces a stainless steel band having enhanced strength and endurance, and which is free of welds and similar discontinuities while exhibiting stress relieved edges rather than stress concentrated edges.