Patent · US Expired

Hydraulic drive for a feeder mechanism in a material pick-up device

US6430905B1 · kind B1 · utility

7Cited by

5References

20Claims

0Family size

Assignee

CLAAS Selbstfahrende Erntemaschinen GmbH · DE

Inventors

Gunter Eis · Wickede (Ruhr), DE
Norbert Strieker · Verl, DE

Key dates

Filing date	Jan 16, 2001
Grant date	Aug 13, 2002
Priority date	—
Expiry date	Feb 8, 2021

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01D57/02
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A hydraulic reel drive wherein the reel motor is driven by a hydraulic pump, which is adjustable in a continuous manner and operates therewith in a closed oil circulating system. The advantage of this arrangement is that the reel always rotates uniformly independently of the instantaneous load thereon. Another advantage thereof is that by using a hydraulic pump, which is adjustable in a continuous manner, only that amount of oil is ever circulated as is required to drive the reel at a predetermined rotational speed.

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