Patent · US Expired

Lifting strut for a tractor

US5042588A · kind A · utility

12Cited by

8References

18Claims

0Family size

Assignee

Jean Walterscheid GmbH · DE

Inventors

Paul Herchenbach · Ruppichteroth, DE
Helmut Kamp · Hohenhausen, DE
Hans Langen · Frechen, DE

Key dates

Filing date	Nov 13, 1990
Grant date	Aug 27, 1991
Priority date	—
Expiry date	Nov 13, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T403/602
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A lifting strut having an adjusting sleeve with an externally threaded portion and an internally threaded portion. A connecting end with a threaded journal is screwed into the internally threaded portion, with a connecting end with a threaded sleeve being screwed on to the externally threaded portion. In addition, there is provided a movable holding sleeve having grooves and stops. The holding sleeve may be moved into any position relative to a rotary cross member of the adjusting sleeve provided with teeth for the purpose of changing the length of the lifting strut. Furthermore, the holding sleeve, with its grooves, may be moved across the teeth of the rotary cross member and across the teeth provided at the threaded sleeve in a corresponding position in order to arrest the change in length.

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