Control system for a hydraulic coupler
US8863640B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2010 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Aug 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8326
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A control system for extending and retracting a ram of a hydraulic coupler for coupling an attachment to an arm of an excavator or back hoe, said control system being adapted to provide an audible and/or visual alert to an operator to indicate a leak of fluid or loss of fluid pressure from said ram and/or from a hydraulic circuit supplying said fluid to the ram. Preferably the control system further comprises a flow sensor for sensing the flow of fluid in a feed line for supplying pressurized fluid to the ram and/or a pressure sensor for sensing the pressure of fluid in said feed line, said control system including at least one indication device for providing said audible and/or visual alert to an operator to indicate a leak of fluid or loss of fluid pressure in response to, or as a function of, the output of the flow sensor and/or the pressure sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.