Railroad track switch operator
US6422519B1 · kind B1 · utility
7Cited by
1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Sep 1, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61L5/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An improved cylinder head for a railroad track switch operator includes totally self-contained electronics and pneumatics for easy and direct replacement of a cylinder head on a prior art switch operator. The improved cylinder head has enhanced porting to improve air flow and speed of operation, a voltage control module permitting the unit to operate with either 24 volt or 12 volt line power, and recessed portions for covering or enclosing delicate and/or sensitive components for maximized protection in harsh outdoor installations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.