Patent · US Expired

Bent wire spring module

US4684111A · kind A · utility

8Cited by
6References
3Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 14, 1986
Grant dateAug 4, 1987
Priority date
Expiry dateFeb 14, 2006

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16F1/02
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A spring module for use in a spring assembly embodying a base frame and a grid frame comprising lower and upper attaching elements for connecting the module to the base frame and grid frame and a plurality of lower and upper symmetrically-disposed, legs yieldable in bending connecting the lower and upper attaching elements.

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