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A haircutting appliance comprises an enclosed housing having a hollow handle connecting the housing to a vacuum source to carry away cut hairs from a subject's head.
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| Number | Title | Issue Date |
| 8104740 | Flow control device A flow control device is provided comprising: a housing (19) including a first chamber (21) communicated with an inlet port (11) and a second chamber (22) communicated with an outlet port (12); a ... | 01/31/2012 |
| 8016260 | Metering assembly and method of dispensing fluid A metering assembly includes a fluidic chip and metering chambers. Selectable outlet valves communicate with each metering chamber to provide a discrete dispensed volume. The valves may be commonly controlled and may be formed as multi-level valves. The valves may b... | 09/13/2011 |
| 7552906 | Valve assembly There is provided a valve assembly with an inlet passage and an outlet passage in communication with a valve chamber, a diaphragm mounted at the valve chamber for movement between a closed position, substantially preventing the flow of fluid from the inlet passage t... | 06/30/2009 |
| 7328593 | Refrigerant valve arrangement A refrigerant valve arrangement is described, having a housing which has a first functional space, in which there is arranged at least one functional element, which co-operates with a first annular contact surface formed in an internal boundary wall. It is desirable... | 02/12/2008 |
| 7192001 | Thermopneumatic microvalve A microvalve device includes a semiconductor-based valve housing that defines a flow passage, and a valve face disposed within the valve housing and in fluid communication with the flow passage. The microvalve device further includes a thermal expansion actuator tha... | 03/20/2007 |
| 7185489 | Particulate trap A particulate trap has a housing and a plurality of filters disposed within the housing. The particulate trap also has a plurality of dividers fluidly isolating one or more of the plurality of filters into filter divisions. The particulate trap has at least one inle... | 03/06/2007 |
| 7163024 | Flow control valve and flow control device There are provided a flow control valve and a flow control device suitable for allowing flow control of a fluid with high accuracy. Diaphragms 8 and 9 are mounted to upper and lower openings, respectively, of an air chamber 6. The upper diaphrag... | 01/16/2007 |
| 7124774 | Control valve A control valve for regulating flow of fluids passing through the valve. The control valve includes a body with an inlet, an outlet and a passageway through which the fluid passes from the inlet to the outlet. The control valve also includes a displaceable column pr... | 10/24/2006 |
| 7108241 | Flow control valve A flow control valve includes a main body 1, bonnet 2, spring receiving portion 3, piston 4, spring 24, first diaphragm 27, first valve member 5, second valve member 6 and base plate 7, wherein an openin... | 09/19/2006 |
| 6988513 | Proportional valve A multistage proportional valve for controlling the pressure of a fluid inside a container includes a fluid outflow passageway having an exhaust opening, an actuatable fluid inflow passageway having an intake opening and an actuatable exhaust cover for selectively c... | 01/24/2006 |
| 6948517 | Two-way valve A piston is arranged in a connecting body. A first diaphragm is provided at a lower portion of a shaft which is displaceable in the axial direction together with the piston. A second diaphragm is provided at an upper position spaced by a predetermined distance from ... | 09/27/2005 |
| 6935354 | Permeable gas assembly for gas delivery A valve assembly for controlling gas delivery from a higher pressure fluid source to a lower pressure processing tool comprising a valve poppet movingly engageable with a valve seating member and a fluid permeable insert positioned between the valve poppet and the v... | 08/30/2005 |
| 6908277 | Speed governor for a pneumatic rotation motor A speed governor for a pneumatic rotation motor having a pressure air inlet passage (15, 15′), an inlet valve (16; 56) including a flow controlling valve element (18; 58) located in the inlet passage (15, 15′), and a speed responsive ... | 06/21/2005 |
| 6896238 | Extended range diaphragm valve and method for making same A micro-machined valve assembly includes a valve diaphragm that will not adhere to a valve seat during elevated temperature operation. The valve assembly has a valve seat, a diaphragm suspended over the valve seat, the diaphragm configured to contact the valve seat ... | 05/24/2005 |
| 6893505 | Apparatus and method for regulating fluid flows, such as flows of electrochemical processing fluids A method and apparatus for regulating fluid flows, such as flows of electrochemical processing fluids for processing microelectronic workpieces. The apparatus includes a valve body having an entrance port, an exit port, and a flow passage between the entrance and ex... | 05/17/2005 |
| 6837263 | Liquid level control system A liquid level control system including a tank; a source of liquid in communication with the tank; a pressure fluid actuated valve for controlling the flow of liquid to the tank from the source; a pressure sensor disposed in the tank to monitor the hydrostatic press... | 01/04/2005 |
| 6827637 | Waterjet cutting system and method of operation A waterjet cutting system and method of operating such system are disclosed. The waterjet cutting system includes an inflatable and deflatable diaphragm to control the mixing of abrasive particulate material and liquid in a stream used to abrade a target object.... | 12/07/2004 |
| 6752172 | Disposable cassette having a sealing membrane and a valve actuator therefor An apparatus for the supply or branching off of a secondary flow into or out of a main flow of a medical fluid, including a fluid guide body in which at least one main passage open to one side and at least one secondary passage opening into the main passage are prov... | 06/22/2004 |
| 6668848 | Pneumatic volume booster for valve positioner The system controls of a pneumatically operated valve using an electrical control signal from a controller. A pilot circuit of the system has multiple piezo valves that are subject to electrical signals from the controller to provide pneumatic output sign... | 12/30/2003 |
| 6474623 | Valve mechanism and control A valve assembly has a valve body in which an inlet port is formed. A valve seat, penetrated by an elliptical opening, is secured in the valve body to provide an outlet port. The inlet port communicates with an inlet chamber, and the outlet port communica... | 11/05/2002 |
| 6405996 | Control valve for extreme temperatures and pressures A valve capable of controlling fluid flow at high temperatures and high-pressures. The valve can shut off or regulate flow and combines a small compact shape with the ability to be remotely operated and the ability to process a diverse variety of fluids i... | 06/18/2002 |
| 6394418 | Bellows actuator for pressure and flow control An actuator for controlling the pressure of fluid, such as water or steam, from a fluid source to a flow controlling orifice. The actuator can be used to apply such fluids to the web of a papermaking machine. The actuator comprises a housing having a firs... | 05/28/2002 |
| 6386509 | Back pressure control valve A back pressure control valve which accurately controls pressure of fluid on a primary side but is not affected by pressure variations on a secondary side. The back pressure control valve 10 has a first chamber 12, a second chamber 14, a flow path 16 with... | 05/14/2002 |
| 6354319 | Low differential, pilot operated fluid pressure regulation apparatus and method An apparatus and method for regulating the pressure of fluid flowing though a conduit system according to which a valve seat is formed in a lower housing connecting in the conduit system with the seat extending between an upstream portion of the system an... | 03/12/2002 |
| 6311949 | Apparatus for operating water gate An apparatus for operating a water gate has a door of the water gate provided in a water channel, and has a mechanism for vertically operating the door. A pressure receiving plate is fixed to the door via an operating rod, and upper and lower air bags are... | 11/06/2001 |
| 6216731 | Hydraulic diaphragm-actuated valve A hydraulic diaphragm-actuated valve has an elastic diaphragm for operation of the pressure-controlled valve, and the diaphragm includes an outer rim configured for being clamped between opposed rigid surfaces, an intermediate flexible portion connected t... | 04/17/2001 |
| 6192912 | Low profile pneumatically activated valve assembly A low profile pneumatically actuated valve assembly including a pneumatic actuator, a bonnet, and an elongated hollow member disposed within the valve actuator, the member having a threaded portion extending from within the actuator, the threaded portion ... | 02/27/2001 |
| 6158712 | Multilayer integrated assembly having an integral microminiature valve A microminiature valve includes a housing having a cavity, and a diaphragm having an array of a plurality of redundant, generally concentric, annular seals on an underside of the diaphragm, wherein the diaphragm is positioned within the cavity so as to de... | 12/12/2000 |
| 6105928 | Pressure adjusting valve for variable capacity compressors A pressure adjusting valve for a variable capacity compressor comprising a main body portion provided with a lower lid, a spring case provided with an upper lid, and a diaphragm held between the upper lid and the lower lid. The upper lid and lower lid are... | 08/22/2000 |
| 6102071 | Elastomeric element valve A fluid control valve having a valve body, a cage, and a flexible elastomeric diaphragm with a formed convolution to fully open the cage opening. An elastomeric diaphragm regulator with a flow diverter in the fluid flow path to reduce fluid flow separatio... | 08/15/2000 |
| 6089532 | Valve for use with agricultural sprayers The present disclosure relates to a valve including a valve body defining an inlet port and an outlet port. The valve also includes a first diaphragm arranged and configured for opening and closing a fluid flow path between the inlet and outlet ports. The... | 07/18/2000 |
| 6042081 | Diaphragm operated process flow valve The present invention is directed towards a diaphragm actuator valve with a keeper element for controlling the number of active coils in the actuator spring, thus controlling the spring tension. The apparatus is a diaphragm operated process flow valve, th... | 03/28/2000 |
| 6007045 | Membrane valve assembly In a pneumatically or hydraulically driven membrane valve assembly with a pressure piece actuated by a pressure spindle, a membrane support member designed as a coupling member engages the pressure piece. The membrane member is connected to the membrane s... | 12/28/1999 |
| 5979502 | Spool valve assembly In a conventional spool valve, the nut holding the diaphragm to the spool valve stem is replaced by a retaining ring, thereby simplifying the machining operation and eliminating the problems caused by damaged threads. A good seal is nevertheless achieved ... | 11/09/1999 |
| 5941280 | Pneumatically driven train brake pipe pressure exhaust valve A valve device for reducing the brake pipe pressure in a railroad train brake pipe at a location remote from a train locomotive including a pair of valves, a first valve to controllably vent brake pipe pressure from the brake pipe for purposes of service ... | 08/24/1999 |
| 5938098 | Servo valve A positive pressure operated servo apparatus for lateral alignment of a continuous web of paper, plastic, textiles and other materials which are being processed at windup, unwind, printing, coating, folding and slitting stations, or other intermediate poi... | 08/17/1999 |
| 5918471 | Joule-Thomson cryostat in-line valve flow controller An in-line valve flow controller for a Joule-Thomson cryostat. The controller has an in-line valve stem that is part of, and is collinear with, an actuation stem of the cryostat. Both the in-line valve stem and actuation stem sit in an orifice of the Joul... | 07/06/1999 |
| 5863023 | Valved coupling for ultra high purtiy gas distribution system Valved couplers and gas processing components particularly suitable for ultra-high purity gas distribution for use in semiconductor manufacturing. In the couplers, a valve stem/bullnose seals the aperture of the coupler immediately adjacent the exterior o... | 01/26/1999 |
| 5836566 | Connector mechanism for a valve spool and a diaphragm A connector mechanism is provided to connect a spool in an air actuated valve to the diaphragm of an air actuating mechanism in order to permit rotational movement of the spool relative to the diaphragm. The connector mechanism includes a connector member... | 11/17/1998 |
| 5829473 | Multi purpose valve A hydraulic control valve comprising a housing fitted with an inlet port and an outlet port, a sealing port intermediate the inlet port and the outlet port, dividing the housing into an inlet chamber and an outlet chamber with a diaphragm sealingly dividi... | 11/03/1998 |
