Hydraulic piston locking device
US6520067B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Dec 12, 2001 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Dec 12, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/7955
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A device for locking a piston rod of a hydraulic piston and cylinder assembly in an extended condition. The locking device is placed in interposed relation to a hydraulic cylinder and an opposing bearing point to prevent retraction of the piston rod. The device has a split sleeve configuration to facilitate mounting the locking device in encircling relating to the piston rod including opposed longitudinally extending edges that are locked to one another via a locking means. The locking means of the device is partially enclosed by a lock protecting housing to protect the locking device from being removed by unauthorized persons. The device is durable, easy to install and remove, and adaptable to a variety of hydraulic piston and cylinder assemblies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.