Tube rolling mill plugs

• US 3,237,441 A
• Filed: 05/01/1963
• Issued: 03/01/1966
• Est. Priority Date: 05/01/1963
• Status: Expired due to Term

• Current Assignee: Fritz T. Eberle
• Original Assignee: Fritz T. Eberle
• Inventors: Eberle, Fritz T.
• Application Number:
  US04/277,323
• Time in Patent Office: 1,035 Days
• US Class Current: 72/209
• CPC Class Codes: B21B 25/00 Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
• CPC Class Codes: C22C 19/07 based on cobalt

Claims

1. IN A METAL DEFORMING APPARATUS, THE COMBINATION OF AT LEAST TWO COOPERATING ROLLS AND A CONICAL PLUG BETWEEN SAID ROLLS, SAID PLUG BEING COMPOSED OF AN ALLOY CONSISTING ESSENTIALLY AS FOLLOWS: