METHOD OF FORMING RELATIVELY STRAIGHT LENGTHS OF METAL INTO ELONGATED MEMBERS

• US 3,423,819 A
• Filed: 12/12/1966
• Issued: 01/28/1969
• Est. Priority Date: 12/12/1966
• Status: Expired due to Term

• Current Assignee: Donald W. Carlson, Phillip E. Eller
• Original Assignee: Donald W. Carlson, Phillip E. Eller
• Inventors: Carlson, Donald W., Eller, Phillip E.
• Application Number:
  US04/601,078
• Time in Patent Office: 778 Days
• US Class Current: 228/156
• CPC Class Codes: B21C 23/01 starting from material of particular form or shape, e.g. mechanically pre-treated B21C23/22 takes precedence
• CPC Class Codes: B21C 23/03 by both direct and backward extrusion
• CPC Class Codes: B21C 23/10 Making finned tubes
• CPC Class Codes: H01R 43/08 in which segments are not separated until after assembly
• CPC Class Codes: Y10T 29/49011 Commutator or slip ring assembly

Claims