Rail fastening assembly
US4819870A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1985 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Feb 21, 2005 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01B9/486
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An assembly is disclosed for securing a railroad rail to a base plate with a resilient fastener clip. The base plate is heated, punched and reforged to provide a clip locking shoulder which includes an aperture through the base plate and an undercut in the shoulder formed by first and second clip engaging surfaces forming a generally V-shaped clip interlock. The fastener clip is of generally U-shape configuration having an upper limb and lower limb interconnected by a heel portion. The lower limb terminates in a clip lock of generally V-shaped configuration complementary to the clip interlock of the clip shoulder and the clip interlock terminates in a clip lead-in formed at an angle complementary to the angulation of the first clip engaging surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.