Hammer-ripper excavating system
US6517164B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Aug 7, 2000 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Aug 7, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F5/326
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hammer-ripper system for use with the mounting on the boom arm, of an excavator/backhoe, of a conventional hydraulically-operated hammer fitted with a “shortened” chisel. A “ripping-type” device like a chisel tooth mounts to a lever with its pivot point attached to the side of the hammer. One end of the lever extends to be impacted by under the shortened chisel, while the other end extends inward. Thus, the tooth end can be placed under embedded boulders and used to hammer (using the transmitted reciprocating action of the hydraulic hammer), and pry or break up the boulders from underneath with the combined hammering and ripping action.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.