Having means for contacting a solid metalliferous material or metal object with a liquid > With means changing the shape of a treated object, e.g., roller means > Spring shaping means > Patents

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Class Information
Number: 266/116
Name: Metallurgical apparatus > Having means for contacting a solid metalliferous material or metal object with a liquid > With means changing the shape of a treated object, e.g., roller means > Spring shaping means
Description: Device wherein the object having its configuration altered is an elastic body.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
6648996	Method and apparatus for producing a helical spring	Nov. 18, 2003
6132533	Method for making arcuate coil springs, resulting springs and devices for carrying out the method	Oct. 17, 2000
5868996	Device for manufacturing curved helical springs	Feb. 9, 1999
5447293	Method and apparatus for quenching heat treated objects	Sep. 5, 1995
5004213	Leaf-spring hardener	Apr. 2, 1991