Patent · US Expired

Multi-stranded coil spring

US7168117B2 · kind B2 · utility

30Cited by
36References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 19, 2004
Grant dateJan 30, 2007
Priority date
Expiry dateFeb 19, 2024

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16F3/04
  • WIPO fieldFurniture, games
  • WIPO sectorOther fields

Abstract

A spring assembly including a helical coil formed from a multi-strand cord.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.