Patent · US Expired

Molded fiber reinforced plastic leaf spring

US4969633A · kind A · utility

12Cited by
15References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 5, 1986
Grant dateNov 13, 1990
Priority date
Expiry dateDec 5, 2006

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C70/46
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A molded fiber reinforced plastic leaf spring. The spring has a curved central section composed of longitudinally extending fibrous strands impregnated with a cured thermosetting resin. The central section is generally rectangular in cross section having rounded upper and lower edges and a ground-off parting line disposed substantially at the neutral axis of the spring.

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