Patent · US Expired

Method of making a plastic leaf spring

US4747898A · kind A · utility

16Cited by
9References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 2, 1987
Grant dateMay 31, 1988
Priority date
Expiry dateJun 2, 2007

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T156/1075
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method of producing a plastic leaf spring for motor vehicles comprising forming a plurality of cured duromeric plastic strips reinforced with high strength fibers aligned substantially in the direction of the maximum elongation or compression of the fibers occurring under spring load at least in essential resilient regions of the spring, the said resilient regions being said strips bonded together by an adhesive and eventually also being bonded to a second, more resilient element and/or to another element and a process for its preparation.

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