Flightless rock auger with quick attachment and method of use
US6129163A · kind A · utility
Inventors
Key dates
| Filing date | Apr 24, 1998 |
| Grant date | Oct 10, 2000 |
| Priority date | — |
| Expiry date | Apr 24, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/94
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flightless rock auger For drilling postholes through rock without the use of hydraulic pressure. The rock auger has a plurality of teeth extending downwardly at a selected angle from the edge of a cylinder connected to a quick connect shaft. The rock auger is utilized for drilling through rock and used in combination with a conventional flighted auger used for drilling postholes in dirt and clay. During a posthole drilling operation, the rock auger is substituted for the flighted auger as needed for drilling through and remove rock or other hard material such as concrete fron the posthole. The rock auger is designed for use at very low revolutions per minute and utilizes only the weight of the auger and shaft and does not require any additional hydraulic pressure for cutting a circular hole through the rock and forming a plug which is to be lodged in the cavity of the rock auger cylinder to be removed from the posthole. The quick connection shaft enables the conventional flighted auger to be quickly substituted for the rock auger to facilitate fast removal of soft dirt from the posthole. The rock auger provides an alternative method for utility companies to drill postholes for el…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.