Patent · US Expired

Controls for continuously adjustable drive

US4543787A · kind A · utility

11Cited by
9References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 29, 1982
Grant dateOct 1, 1985
Priority date
Expiry dateSep 29, 2002

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H61/433
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

Control for a continuously adjustable drive, equipped with a signal transmitter arbitrarily actuatable by a manipulation element, in which the conversion setting imposed on the drive is influenced by the position of the manipulation element, in which case an additional r.p.m.-dependent signal is superimposed on the signal emitted by the signal transmitter, at least at excessively small drive r.p.m.'s, where the arbitrarily adjustable signal transmitter preferably is a pressure-regulating valve to which the pressure impounded in front of a restrictor in the delivery line of a constant pump is fed.

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