Lightweight knuckle for a railroad car coupler
US5954212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1998 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Jan 20, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G3/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved lightweight knuckle is described for use in an AAR Standard E or F type railroad car coupler. The outer contouring and inner voids of the improved lightweight knuckle are radically changed without compromising the integrity or operability of the knuckle during conventional coupling and uncoupling operations with, and from, an existing AAR Standard knuckle. The nose of the improved lightweight knuckle is provided with a pair of parallel, coplanar flat surfaces between which is a projection which extend outwardly from the flat surfaces and terminates at an outer curved surface which has the same curvature as the corresponding curvature of an existing AAR Standard knuckle. Also, twin sets of reinforcement ribs are provided within the improved lightweight knuckle to strengthen the knuckle and make it more durable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.