Excavator tool quick attachment device
US7493712B2 · kind B2 · utility
20Cited by
10References
8Claims
0Family size
Inventors
Key dates
| Filing date | Sep 20, 2004 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Oct 18, 2024 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F3/3677
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Excavator tool quick attachment device (1) is used to attach a tool to a dipper arm (2) of an excavator. Body member (52) has two receivers (12,14) for tool pins (11,15). Receiver (12) has a movable latch (3) powered by an hydraulic ram (20) for securing and releasing pin (11) and receiver (14) has a movable spring loaded lock (22) for securing and releasing pin (15). A control assembly (21) is connected between latch (3) and lock (22) but only operates to release lock (22) when the device (1) is inverted relative to a normal working position and the hydraulic ram (20) is activated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.