Bucket for excavating beneath buried utility lines
US5020249A · kind A · utility
Inventor
Key dates
| Filing date | Jun 19, 1989 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | Jun 19, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A bucket for excavating beneath buried utility lines having an elongated base portion, an upwardly curving back portion and a top portion. The inner edge of the back portion has a progressively decreasing radius and the outer edge of the back portion has a progressively increasing radius. The top portion includes couplers arranged in a plane angled in relation to the base portion. The bucket is designed to be utilized when repair work or new construction takes place in close proximity to existing utilities. It will remove earth around and under buried utility lines without use of hand shovels or boring machines. The plane and the radius are coordinated to simultaneously permit the utility line to clear the inner edge and the excavation to clear the outer edge as the bucket rotates about the couplers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.