| BUCHER HYDRAULICS AG Patent applications |
| Patent application number | Title | Published |
|---|
| 20120125190 | Arrangement For Providing A Variable Throttle Cross-Section For A Fluid Flow - An arrangement for providing a throttle cross-section for a fluid flow. The throttle cross-section can be varied depending on a pressure difference present across the throttle cross-section. The arrangement is designed such that the polarity of the pressure difference, by which the throttle cross-section can be varied and/or changed. It is thereby possible to use the arrangement for fluid flows that alternate in the flow direction thereof. | 05-24-2012 |
| 20090114482 | Hydraulic Elevator Without Machine Room - A hydraulic elevator for an elevator shaft having guide rails for an elevator cab is disclosed. The hydraulic elevator has no machine room and includes an assembly disposed between the guide rails and comprising a tank, a pump mounted in the tank, a motor mounted in the tank for driving the pump, and a control valve unit mounted on the tank and in working relationship with the pump. One of the pump and the motor is disposed above the other of the pump and the motor. The hydraulic elevator further includes a hydraulic drive mounted on the tank, the hydraulic drive being configured to move the elevator cab by a cable; and an emergency operating and monitoring device disposed outside of the elevator shaft and connectable to the control valve unit by a measuring line. | 05-07-2009 |
| 20090078112 | Pilot valve for a hydraulic motor - The invention relates to a pilot valve ( | 03-26-2009 |
