Bridge tie fastener system
US9512573B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | May 13, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49948
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tie fastener apparatus for attaching railroad ties to a superstructure. The apparatus comprises a threaded hook bolt, including a hook with a hook end to engage the underside of a flange of a superstructure beam. The apparatus further includes a metal member for engaging plural ties, the metal member including a tie fastener hole at plural locations, and a nut for fastening a threaded end of the threaded hook bolt for installation when the threaded hook bolt is passed through the bolt hole and optionally a washer. When the threaded hook bolt is installed, including passing a threaded end of the threaded hook bolt through the bolt hole and fastening with the nut, the hook engages the superstructure. The apparatus is installed from above the superstructure without drilling holes in ties or the superstructure, or requiring manned installation from below the superstructure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.