Patent · US Expired

Apparatus for supporting the trailer of a tractor-semitrailer

US7398959B2 · kind B2 · utility

19Cited by
57References
32Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 21, 2003
Grant dateJul 15, 2008
Priority date
Expiry dateMar 19, 2024

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60S9/08
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

An apparatus for supporting a trailer of a tractor semitrailer has a supporting element that is telescopically adjustable by way of a gear shifting mechanism having a gear input shaft running vertically onto a spindle. In this way, the supporting element has an especially compact construction and can be installed very easily. The gear shift also has a free floating gear between two shift positions and can be shifted very conveniently.

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