Patent · US Expired

Pneumatic three-position shift mechanism with fewer components

US6484600B1 · kind B1 · utility

5Cited by
5References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 9, 2001
Grant dateNov 26, 2002
Priority date
Expiry dateMay 9, 2021

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/20183
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An improved transfer case has fewer parts than the prior art to achieve the pneumatic three-position function. In the prior art the pneumatic cylinders were provided by bolt-on housings which required additional components to achieve a fluid tight connection. The present invention incorporates its fluid cylinders within bores formed into the transfer case housings. In this way, the required number of housing components is greatly reduced compared to the prior art.

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