Class / Patent application number | Description | Number of patent applications / Date published |
417480000 | Valve in collapsible wall pumping member | 8 |
20090162229 | PUMP STRUCTURE CONNECTABLE WITH AN AIR CUSHION OR A BLADDER - A pump structure connectable with an aircushion or a bladder. The pump structure includes: a flexible main body defining a valve room in which a relief valve is arranged and a compressible chamber; a one-way valve permitting the fluid to one-way flow into the chamber; and a thin membrane-type check valve. The check valve has a first end and a second end, which are operable between opened position and closed position. The first and second ends respectively communicate with the chamber and an output tube, which is connectable with the aircushion or bladder. The first and second ends of the check valve are respectively positioned in spaces provided by the chamber and the valve room. A substrate board is disposed under the flexible main body. The substrate board has a through hole and a notch formed on positions where the first and second ends of the check valve are formed. | 06-25-2009 |
20090269229 | Pump - A fluid drawing device ( | 10-29-2009 |
20110229359 | DIAPHRAGM PUMP FOR A SEAT ADJUSTING DEVICE AND SEAT ADJUSTING DEVICE - A diaphragm pump for a seat adjusting device comprises a diaphragm and a valve member which define a pump chamber therebetween. An inlet valve and an outlet valve are formed on the valve member. A pressure chamber is in fluid communication with the outlet valve and receives fluid discharged from the pump chamber via the outlet valve. One of the diaphragm and the valve member comprises a valve membrane of a pressure relief valve integrated in the pump. The valve membrane is integrally formed with the one of the diaphragm and the valve member. The valve membrane is moveable between a first configuration in which the valve membrane closes a pressure relief channel and a second configuration in which the valve membrane opens the pressure relief channel to allow fluid to be discharged from the pressure chamber. | 09-22-2011 |
20110293454 | STRUCTURE OF AIR BLADDER PUMPING DEVICE - An air bladder pumping device includes an air pump and an air bladder. The air pump includes a base, a resilient membrane, and two air valves. The base forms a tubular receptacle that receives one of the air valves and has a bottom defining an air exit opening. The resilient membrane forms a socket that receives another air valve and has a bottom defining an air entrance opening. The resilient membrane and the base have circumferential sealing flanges, which are tightly secured together through ultrasonic processing or die pressing to form the air pump. The air pump is attached to one side of the air bladder to form an inner lining cushioning bladder. Air intake and exhaust of the air bladder can be performed through squeezing the air pump. | 12-01-2011 |
20120301338 | Compressing diaphragm pump having abnormal pressure preventing features for spray use - A compressing diaphragm pump having abnormal pressure preventing features for spray use has a hollow tubular air discharge assembly having a plunger body and compressed spring as well as an air passage pierced at the wall of the water exit port and an air discharge orifice pierced of the central top surface of the air discharge assembly for connecting with the plunger body. When air is mixed within the pressurized water, the resilient force of the compressed spring is bigger than the water pressure of the pressurized water. This allows the air mixed in the pressurized water to get into the air passage and pass the plunger opening of the plunger body via through pore, and is dispelled out of the upper hood via the air discharge orifice of the air discharge assembly. | 11-29-2012 |
20130071273 | DISC PUMP AND VALVE STRUCTURE - A dual-cavity pump having a pump body with a substantially elliptical shape including a cylindrical wall closed at each end by end plates is disclosed. The pump further comprises a pair of disc-shaped interior plates supported within the pump by a ring-shaped isolator affixed to the cylindrical wall of the pump body. The internal surfaces of the cylindrical wall, one of the end plates, one of the interior plates, and the ring-shaped isolator form a first cavity within the pump. The internal surfaces of the cylindrical wall, the other end plate, the other interior plate, and the ring-shaped isolator form a second cavity within the pump. The interior plates together form an actuator that is operatively associated with the central portion of the interior plates. The illustrative embodiments of the dual-cavity pump have three valves including one located within a common end wall between the cavities of the pump. Methods for fabricating the pump are also disclosed. | 03-21-2013 |
20140037481 | Pump produced in a substrate - A pump having a first substrate extending in a plane, a cavity formed in a top face thereof and having fixed lateral walls that delimit sides thereof, intake and evacuation channels formed in the top face, each parallel to the plane from an inlet to an outlet, the outlet of the intake channel and the inlet of the evacuation channel opening into the cavity at the walls, a second substrate bonded onto the top face and forming a fluid-tight chamber, a membrane forming a wall of the chamber and being deformable between suction and positions to suck or discharge fluid, and non-return valves formed in the top face, each having a proximal side anchored to the first substrate. The proximal side of the first is between the orifices of the intake channel, and the proximal side of the second valve is between the orifices of the evacuation channel. | 02-06-2014 |
20140255230 | MINIATURE PUMP DEVICE - An air pump includes a driving unit and an airflow control unit. A piston base has a first intake through hole. A piston unit has an intake valve and a bladder portion, and the intake valve is located over the first intake through hole. A first valve base is located over the piston unit. A flow guide groove of the first valve base crosses over the paired intake valve and bladder portion. The first valve base has a first output through hole. The first valve base has a circular wall surrounding the first output through hole. A first output valve is located over the first output through hole. A second valve base is coupled to the circular wall to define a compression chamber. The second valve base has a second output through hole communicating with the compression chamber. A second output valve is located over the second output through hole. | 09-11-2014 |