Patent · US Expired

Impact resistant blade

US4000956A · kind A · utility

25Cited by
9References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 22, 1975
Grant dateJan 4, 1977
Priority date
Expiry dateDec 22, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T50/60
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A blade fabricated of a plurality of bonded filament laminates, at least one of the laminates characterized by a plurality of continuous, collimated filaments embedded in a different matrix at the blade tip than at the blade root. The matrices are characterized by different relative impact strengths.

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