Coupler for bucket excavators
US6625909B1 · kind B1 · utility
24Cited by
13References
8Claims
0Family size
Inventors
Key dates
| Filing date | Jun 22, 2001 |
| Grant date | Sep 30, 2003 |
| Priority date | — |
| Expiry date | Jun 22, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/3663
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A coupler (11) for connecting a dipper arm (3) of an excavator to a bucket (1) without need for the operator of the excavator to leave the cab of the excavator, the coupler (11) having a device for connecting it to the end of the dipper arm (3), and a latching hook (17) for connecting it to a bucket (1), wherein the latching hook (17) has a special internal profile (56, 57, 61) so that when it is supporting the weight of a bucket (1), it will tend to move to a latching position, not to an unlatching position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.