.~.~> Resilient shock or vibration absorber utility
DEFINITION
Classification: 29/896.9
Spring making:
(under subclass 592) Process for manufacturing an elastic device or component that regains its original shape after being compressed or extended.
(1) Note. A spring made (a) by metal working without an assembly or diverse manufacturing step or (b) including any tempering or hardening step is generally not found as an original patent in Class 29.
SEE OR SEARCH THIS CLASS, SUBCLASS:
896.8, for a process of making a spring-head clip peculiar to railway usage.
SEE OR SEARCH CLASS
72, Metal Deforming, for bending, generally, a metal workpiece; especially
66, for coiling by a work-guide member orbiting about the longitudinal centerline of a formed coil and subclasses 135+ for making a helical coil by deflecting. 140, Wireworking, for working wire stock by operations other than provided for in the metal deforming class, especially
89, for spring setting and subclass 103 for the loop forming of a coil spring.
148, Metal Treatment, for modifying or maintaining metal microstructure (i.e., tempering, hardening, solution heat treating, etc.) with or without assembly or diverse operations.
267, Spring Devices, for a spring, per se.
428, Stock Material or Miscellaneous Articles,
592, for metallic stock material which is helical.
