Automatic cut lever apparatus
US7562781B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Nov 20, 2006 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | May 6, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61G3/08
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cut lever apparatus that automatically actuates a lock lift assembly to either lock or unlock a coupler knuckle of a freight car coupler. The apparatus includes a cylinder member having a piston disposed therein. A bracket member is attachable to the freight car coupler to support the cylinder. A linkage member is connected to the piston of the cylinder and the lock lift assembly to convert a lateral motion of the piston to a curvilinear motion of the lock lift assembly to either lock or unlock the coupler knuckle. A valve member is connected to the cylinder for communicating a pressurized fluid to the cylinder when a predetermined signal is sent to the valve and preventing pressurized fluid from entering the cylinder in an absence of the predetermined signal. Pressurized fluid in the cylinder is vented to atmosphere when the valve shuts off supply of pressurized fluid thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.