Patent · US Expired

Actuator of linear motion, with a rack-like member and a rotating member

US4633111A · kind A · utility

2Cited by
7References
9Claims
0Family size

Inventor

Key dates

Filing dateApr 29, 1985
Grant dateDec 30, 1986
Priority date
Expiry dateApr 29, 2005

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/18312
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The actuator of rapid linear variable motion comprises: a linear member--fixed or sliding--having a concave cylindrical surface with generatrices parallel to the direction of motion of said member, on which variable-pitch helix-like and shaped channels are formed; and a rotating member with its axis parallel to the linear member and provided with pegs angularly distributed and capable of coming in contact, one after the other, with limited contemporaneousness, with the channels of the linear member.

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