Patent · US Expired

Centrifugal clutch for power saws

US4446954A · kind A · utility

3Cited by
8References
18Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 30, 1981
Grant dateMay 8, 1984
Priority date
Expiry dateOct 30, 2001

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2043/145
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A centrifugal clutch for power saws. The clutch includes a rotating driven centrifugal weight carrier, and a clutch drum which is concentric to the axis of rotation of the carrier. At least one centrifugal weight engages the clutch drum at predetermined speed of the carrier. The centrifugal weight is coupled with at least one return weight in such a manner that the return weight opposes the pressing force of the centrifugal weight when the speed increases over a certain level.

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