Patent application number | Description | Published |
20080277609 | Non-contact torque sensing for valve actuators - Non-contact torque, thrust, strain, and other data sensing of a valve actuator or valve is disclosed. A sensor may include a surface acoustic wave device. | 11-13-2008 |
20090090880 | Power Generation for Valve Actuators - The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored. | 04-09-2009 |
20090189110 | VALVE ACTUATORS HAVING MAGNETIC ANGLE SENSORS AND SYSTEMS INCLUDING SAME - A valve actuator including a magnetic angle sensor is disclosed. The magnetic angle sensor may function as an absolute position encoder. The magnetic angle sensor may also function as an incremental position encoder. The magnetic angle sensor may generate angular velocity data. The magnetic angle sensor may be used in quarter-turn and single-turn rotary valve actuators. The magnetic angle sensor may also be used in multi-turn rotary and linear valve actuators. | 07-30-2009 |
20100001177 | Rotary Encoder with Built-in-Self-Test - A rotary encoder using built-in self test ability with redundant and fault tolerant position sensing. Wherein the rotary encoder is used with a variety of rotary equipment including a valve actuator including the generation of speed data ( | 01-07-2010 |
20100005897 | Load Measurement Method and Device - A device for axial load measurement on a mechanical control device ( | 01-14-2010 |
20100012874 | Rotary Encoder Frequency Analysis - A novel method for diagnosing problems with a valve actuator or other rotary equipment. Frequency analysis is performed upon speed, position, torque, thrust, or vibration data. Speed or position data may be provided by a rotary encoder. | 01-21-2010 |
20110259125 | LOAD MEASUREMENT METHOD AND DEVICE - A device for axial load measurement on a mechanical control device having a rotating shaft may be used to derive a torque measurement. A mechanical control device may comprise a valve actuator for fluid flow control devices. The load measurement device may include a beam operatively connected to a rotatable shaft and configured to deform under axial displacement of the shaft. A sensor may be coupled with the at least one beam and configured to produce an output signal related to the axial displacement of the shaft. The beam may be retained between two bearings on the rotatable shaft at a first end, and fixed to a housing of the mechanical control device at a second end. The first end of the beam may displace axially with the rotatable shaft. The beam may comprise a discrete segment of a uniform width and thickness. | 10-27-2011 |
20120080622 | NON-CONTACT TORQUE SENSING FOR VALVE ACTUATORS - Non-contact torque, thrust, strain, and other data sensing of a valve actuator or valve is disclosed. A sensor may include a surface acoustic wave device. | 04-05-2012 |
20130199322 | POWER GENERATION FOR VALVE ACTUATORS - The present invention utilizes operation of a valve actuator to generate electrical power. A portion of the mechanical energy generated by operation of a valve actuator is converted to electrical energy. The mechanical energy may be converted to electrical energy at the same time as the valve actuator is operating or the mechanical energy may be stored for later conversion. A valve actuator may be operated manually, electrically, pneumatically, or hydraulically. Generated electrical energy may also be stored. | 08-08-2013 |
20140102216 | NON-CONTACT TORQUE SENSING FOR VALVE ACTUATORS - Non-contact torque, thrust, strain, and other data sensing of a valve actuator or valve is disclosed. A sensor may include a surface acoustic wave device. | 04-17-2014 |
20150028236 | VALVE ACTUATOR HAVING MAGNETIC ANGLE SENSORS - A valve actuator including a magnetic angle sensor is disclosed. The magnetic angle sensor may function as an absolute position encoder. The magnetic angle sensor may also function as an incremental position encoder. The magnetic angle sensor may generate angular velocity data. The magnetic angle sensor may be used in quarter-turn and single-turn rotary valve actuators. The magnetic angle sensor may also be used in multi-turn rotary and linear valve actuators. | 01-29-2015 |