Patent · US Expired

Infinitely variable belt drive with low friction seals for the primary and secondary sheaves

US4608032A · kind A · utility

13Cited by
6References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 2, 1984
Grant dateAug 26, 1986
Priority date
Expiry dateNov 2, 2004

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H55/56
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An infinitely variable power transmission mechanism comprising a driving sheave assembly and a driven sheave with a torque transmitting drive belt connecting the sheaves, a ratio controlling servo for changing the effective pitch diameter of the sheave assemblies, a belt loading servo for controlling the load capacity of the belt and relatively reduced friction diaphragm actuators for adjustably positioning movable sheave portions of the sheave assemblies, the belt and sheave assembly portions of the mechanism being in a housing area that is isolated from gearing portions of the mechanism.

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