Class / Patent application number | Description | Number of patent applications / Date published |
251129090 | Solenoid having plural coils | 10 |
20080302988 | Trap primer valve assembly with battery pack and timer - A self-contained trap primer valve assembly is housed in a cabinet and includes a conduit for connection to a building's water main to carry water under pressure, a valve is operatively mounted in the conduit and a solenoid is operable for selectively opening and closing the valve, wherein a low voltage battery and a timer mechanism connected to the battery and preset for selectively actuating the solenoid, opens and closes the valve for preselected durations. | 12-11-2008 |
20100051843 | CARBON NANOTUBE-BASED GAS VALVE - Precise control over gas delivery is achieved at the micro and nanobar mass levels by incorporating blocks of aligned carbon nanotubes into valves and finely adjusting the flow through the block by controlling a compressing force applied to the block. A valve for controlling gas flow includes: a valve housing; a block of aligned carbon nanotubes, the block and the valve housing being configured to direct the gas through the carbon nanotubes in the block; and a device configured to apply a force to the block in order to compress the block, wherein the block is compressed perpendicular to the walls of the carbon nanotubes in the block; whereby the application of the force to the walls restricts the flow of the gas through the valve. The valve may further comprise an electrical device for monitoring the electrical properties of the carbon nanotube block. This monitoring provides information on the state of compression of the carbon nanotube block and/or the gas that is flowing through the valve. | 03-04-2010 |
20100252760 | SOLENOID VALVE - A double valve has two coils which can be piloted separately from each other and which each have a core. The coils are arranged in a common valve housing, and a flange housing is mounted to the valve housing. Two valve seats are arranged in the flange housing, and a diaphragm is associated with the two valve seats, with each coil being associated with one valve seat. | 10-07-2010 |
20120175539 | SAFETY DEVICE AGAINST COMBUSTIBLE GAS LEAKS FOR HOUSEHOLD APPLIANCES - A safety device against gas leaks for an apparatus having at least one gas tap or the like ( | 07-12-2012 |
20140158921 | ELECTROMAGNETIC VALVE DEVICE FOR HIGH-PRESSURE FLUID - A guide portion slidably receiving a movable core is constructed by a medium-diameter portion, a first small-diameter portion, and a second small-diameter portion. A magnetism blocking portion is provided between the first small-diameter portion and the second small-diameter portion. A ring portion is provided at a periphery of the medium-diameter portion, and abuts on a yoke. When a coil is energized, a magnetic circuit is generated to pass through the yoke, the medium-diameter portion, the first small-diameter portion, the movable core, and the second small-diameter portion, and to bypass the magnetism blocking portion. In addition, another magnetic circuit passing through the ring portion is also generated. A magnetic attractive force inclining with a center axis of the guide portion is generated between the second small-diameter portion and an end surface according to an expansion magnetic circuit, and the movable core is moved towards the stator core. | 06-12-2014 |
20150014558 | Valve Apparatus and System - A bistable valve. The valve includes an interior cavity; a first pressure source; a second pressure source; a first post connected to the interior cavity at a first end of the interior cavity; a second post connected to the interior cavity at a second end of the interior cavity; a magnetic shuttle located within the interior cavity; a first electromagnetic coil disposed about the first post; a second electromagnetic coil disposed about the second post; wherein when the first electromagnetic coil is energized, the first electromagnetic coil supplies a magnetic charge to the first post and actuates the magnetic shuttle to move towards the first end of the interior cavity towards the first post and seal the first pressure source. | 01-15-2015 |
20150377379 | Planar valves - A planar valve of flow of fluid in channel that is driven by a direct current and allows easy miniaturization down to millimeter scale. | 12-31-2015 |
251129100 | Coils have common axis | 3 |
20080203341 | Electrically Controlled Valve - An electrically controlled valve, in particular for the variable adjustment of the damper characteristic curve of a vibration damper, comprising a magnetic drive for actuating a valve slide that is guided in a housing in one moving direction, as well as a passage arranged in the housing between a valve inlet and a valve outlet for the variable volume flow control, the passage cooperating with a control edge of the valve slide. The moving direction of the valve slide is electrically reversible, thereby resulting in a comparatively simple mechanical layout for the valve for variably controlling the characteristic curve of the valve. | 08-28-2008 |
20090108219 | Zone valve actuator - A valve actuator includes a motor which drives a gear assembly for selectively imparting motion to a valve member. The valve actuator includes a reed switch for use in controlling a pump or control system for a plurality of pumps in response to initialization of the valve actuator. The motion of the gear assembly causes a magnetic field to come into contact with the reed switch and either engage or disengage the reed switch. | 04-30-2009 |
20140151589 | FLOW APPARATUS AND MONITORING SYSTEM RELATING THERETO - The present invention provides a flow apparatus ( | 06-05-2014 |