Combination yoke and elastomeric draft gear

US8136683B2 · kind B2 · utility

Assignee

• WABTEC HOLDING CORP. · US

Inventors

• Ronald J. Sprainis · Springfield, US
• Michael E. Ring · Saint John, US
• Bradley Anderson · Des Plaines, US
• Jonathon Marlow · Hobart, US
• David J. Meyer · Fort Lauderdale, US
• Michael J. Moriarity · Lansing, US
• Wajih Kanjo · Lockport, US

Key dates

• Filing date: May 1, 2008
• Grant date: Mar 20, 2012
• Expiry date: Aug 27, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49837
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A draft gear assembly which is mountable within a yoke of the railway vehicle for cushioning buff and draft dynamic impact forces encountered during make-up and operation of a railway vehicle includes a compressible spring positioned intermediate the front coupler follower and the rear follower in alignment with the longitudinal axis of the yoke. A pair of axially aligned compressible springs may be also provided being either separated by a center plate or by a wall of the yoke.