Railroad crossing gate height adjustment assembly and method
US8297557B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jun 17, 2011 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jun 17, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L29/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A railroad crossing gate height adjustment assembly and method for reestablishing a height of the crossing gate of a railroad crossing gate apparatus. An elongated externally threaded pipe has a reducer threadably engageable at a lower, smaller end thereof onto, and is adjustably positionable along a length of the threaded pipe. A larger, upper end of the reducer is threadably lockable with a coupling previously secured at a lower end of a wiring conduit of the gate apparatus whereby the length of the wiring conduit is adjustably increased by an exposed length of the threaded pipe. A bushing having an external thread is lockably engageable onto a top surface of a gate base of the gate apparatus after the coupling and connected wiring conduit are removed, the bushing also having an external thread thereon for supportively receiving a lower end of the threaded pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.