| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137102000 | Supply and exhaust type | 9 |
| 20100263737 | MONODIRECTIONAL INTAKE PRESSURE STABILIZATION STRUCTURE OF PNEUMATIC TOOL - A monodirectional intake pressure stabilization structure of pneumatic tool includes a tool main body and a pressure stabilization unit. The pressure stabilization unit is disposed in a first directional intake passage formed in the tool main body for controlling the pressure of the air guided by the first directional intake passage into an air chamber of the tool main body. Accordingly, excessively great intake pressure can be avoided so as to avoid over-torque output of the pneumatic tool. In this case, the pneumatic tool can stably output power within a safety range in accordance with the requirements of actual use. The pressure stabilization unit can be a pressure stabilizer or a pressure relief valve. | 10-21-2010 |
| 20140366955 | REMOTE REGULATOR FOR ROOF BOLTER - A regulator for controlling operation of a drill thrust actuator and a drill rotation actuator in a roof bolter, is provided. The regulator includes a first pressure relief unit, a second pressure relief unit and a flow control valve. The first pressure relief unit is configured to selectively allow a hydraulic fluid to pass to the drill thrust actuator. The second pressure relief unit is configured to selectively allow the hydraulic fluid to pass to the drill rotation actuator. Further, the flow control valve is configured to selectively adjust a flow of the hydraulic fluid to the drill rotation actuator. | 12-18-2014 |
| 20140373935 | GAS BRANCHED FLOW SUPPLYING APPARATUS FOR SEMICONDUCTOR MANUFACTURING EQUIPMENT - A gas branched flow supplying apparatus for semiconductor manufacturing equipment. An arithmetic and control unit | 12-25-2014 |
| 20150101676 | Valve Block having a Valve Assembly - A valve block includes a plurality of control valve disks that form a first block part and a second block part. A supply pressure for the control valve disks of the first block part is limited by a common pressure-limiting valve. The common pressure-limiting valve is arranged such that a prevailing load pressure registered by the control valve disks does not exceed a specific value. The supply pressure for the control valve disks of the second block part is not limited. | 04-16-2015 |
| 20150107686 | OIL PUMP FOR INTERNAL COMBUSTION ENGINE, AND RELIEF PRESSURE CONTROL APPARATUS FOR OIL PUMP - An oil pump includes a relief valve. The relief valve adjusts a pump discharge pressure depending on a differential pressure between the pump discharge pressure and a back pressure chamber pressure. An electromagnetic switching valve includes a movable member moved electromagnetically. The movable member brings a ball valve element selectively into a state pressed onto a valve seat portion, to selectively close and open an oil passage. The electromagnetic switching valve selectively supplies the pump discharge pressure to a back pressure chamber of the relief valve and drains the back pressure chamber of the relief valve by selectively opening and closing the oil passage. A pilot valve is disposed downstream of the electromagnetic switching valve, and operates upon receipt of the pump discharge pressure or the back pressure chamber pressure, and controls an oil pressure supplied to the back pressure chamber of the relief valve. | 04-23-2015 |
| 137103000 | Vacuum or suction pulsator type (e.g., milking machine) | 1 |
| 20150107687 | Dosage Valve for a Backflushing and Teat Dip Applicator System - A system for cleaning a dairy animal milker unit and applying dip to a dairy animal, the system includes a main control, an air supply, a water supply, a backflush fluid supply, a dip supply, a stall control for receiving the air, water, backflush fluid and dip supplies, and a safety valve that is adjacent to a downstream portion of the milker unit to control backflush and dip fluids being fed to the milker unit. | 04-23-2015 |
| 137106000 | Reversing or 4-way valve systems | 3 |
| 20100307607 | REVERSING VALVE - A reversing valve is provided having a generally cylindrical valve housing and a rotatable valve body positioned within at least partially within the housing, the valve body has a first fluid pathway and a second fluid pathway, each fluid pathway generally shaped as a “y” such that there are six openings into the body. A motor rotates the body to align the fluid pathways of the body with four openings in the housing in a first position and rotates the body 180 degrees to a second position aligning the fluid pathways of the body with four openings in the housing in a manner allowing reverse flow through the valve. At least one opening of each fluid pathway is blocked by the housing when the body is in either the first or second position. | 12-09-2010 |
| 20130233409 | DYNAMICALLY ADJUSTING COUNTERBALANCE VALVE - A counterbalance valve is provided with load-sensing, hydro-mechanically setting, features. The counterbalance valve relief setting changes dynamically based on the load pressure at the load port of the counterbalance valve. | 09-12-2013 |
| 20150075640 | Pneumatic Valve Assembly and Method - A valve assembly for receiving a fluid under pressure and comprising a plurality of valves in a single valve block. The assembly may include a plurality of check valves and including a counterbalance generating valve and a 3-way valve and including a method of use. The assembly may include an adjustable counterbalance valve, a pilot-operated check valve and a 3-way valve or combinations thereof. | 03-19-2015 |
