Convertible bucket attachment capable of excavation and clasping
US4283866A · kind A · utility
Inventor
Key dates
| Filing date | Feb 15, 1980 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Feb 15, 2000 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/32
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A convertible bucket attachment for excavation and clasping comprising a bucket portion consisting of a bucket proper and a complementary sub-bucket and connected to a rocking arm of an excavator machine, the bucket proper and the sub-bucket being rockingly connected to each other in the upper portions, upper link members having one end pivotally secured to the bucket proper and another end connected to the distal end of the plunger rod of a cylinder actuator, sub-link members connected at one end to the excavator arm and rockingly supporting the upper link members, and lower link members pivotally secured to the sub-bucket at one end and associated with the upper link members and sub-link members. The bucket attachment can perform both operations of excavation and clasping by means of one single cylinder actuator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.