| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073100710 | Pressure activated device | 12 |
| 20140352401 | ORIFICE SYSTEM - The invention relates to an orifice system, especially for flow measurements in pipes, comprising a hinged member being adapted to be moved between two positions, the first position essentially covering the pipe cross section, and a second position into a recess outside the pipe cross section, wherein the hinged member has an opening thus in the first position allowing the fluid flow only through the opening. The invention also relates to a method for using the orifice system for calibrating pressure sensors mounted upstream and downstream of the orifice. | 12-04-2014 |
| 073100720 | Valve | 11 |
| 20090314055 | SYSTEM TO CONTROL PRESSURE IN A TEST DEVICE - Embodiments of the present invention are directed toward pressure controllers and calibrators for setting or measuring pressures in test devices. In one embodiment, the pressure controller contains a dual reference pressure controller. The dual reference pressure controller is operable to maintain two different pressures relative to a reference pressure. The first pressure being a relatively fixed amount greater than the reference pressure and the second pressure being a relatively fixed amount less than the reference pressure. | 12-24-2009 |
| 20100018284 | STATIC RIG FOR VALVE TESTING - A static test rig, for a safety valve having an inlet and a disc movable to open and close the valve, comprises a test table having an aperture therethrough over which the valve can be mounted with its inlet open to the aperture, a gas chamber arranged under the table to admit compressed gas to the aperture thereby to apply a gas pressure to the valve disc, a push rod extending through the gas chamber and arranged to extend through the valve inlet and actuation means arranged to apply an axial push force to the push rod thereby to apply a push force to the disc simultaneously with the gas pressure. | 01-28-2010 |
| 20100154507 | Paravalvular Leak Test Apparatus and Method - An apparatus and method for measuring paravalvular leakage from a prosthetic heart valve in vitro. The apparatus has a pulse chamber pressure vessel and a pulsatile pump. The sewing ring of a prosthetic heart valve is mounted to a mounting member which is affixed to the pressure chamber, and paravalvular leakage from the heart valve is collected and measured. | 06-24-2010 |
| 20100236319 | VALVE TESTING - Apparatus for testing a safety valve by applying a force to the valve stem and detecting the resultant motion of the valve. The actuator used is generally a hollow cylinder of piezoelectric material or other solid state actuator, which is adapted to locate concentrically about the valve stem. The concentric placement and lack of moving parts creates reliability and even force distribution while maintaining a small overall size. | 09-23-2010 |
| 20100257916 | ACCURACY ENHANCING VALVE ASSEMBLY AND RELATED METHOD OF USE - The invention is directed to a method to improve accuracy of a meter. The method first contemplates introducing a desired fluid into a valve assembly having an external casing with an inlet, outlet and interior side forming a chamber. Next, a desired fluid contacts a toggle stopper having a shaft, plate, and guides. A calibrated spring positioned around the shaft in contact with the plate assesses if the desired fluid meets a predetermined pressure. If the fluid meets this threshold, the calibrated spring compresses thereby toggling plate within the chamber to allow desired fluid to enter the chamber. Should the total pressure of the desired fluid and/or an undesired fluid create a pressure that fails to meet the predetermined pressure, the calibrated spring expands to seal the valve assembly. Upon such seal, there is an equalizing of both the desired and undesired fluids to the same pressure by decreasing the volume of the undesired fluid, causing the calibrated spring to compress and reopen. | 10-14-2010 |
| 20100263433 | VALVE TESTING - Testing of a safety valve is described in relation to a valve stem biased relative to a valve body, and comprising a rotor mounted helically on said valve stem, and a driver adapted to rotate the rotor. Rotation of the rotor causes an axial force between the valve stem and the rotor and allows the rotor to be moved into and out of engagement. When engaged the rotor can apply a pre-load to the stem, and may provide sufficient force to achieve valve lift. Alternatively a two stage actuator system may be employed, the second stage providing lift after application of the pre-load. | 10-21-2010 |
| 20110302990 | Automatic Valve Calibration of a Blown-Film Extrusion Apparatus - The present invention relates to a method of automatically calibrating a valve in a fluid flow path of a blown-film extrusion apparatus. The calibration process detects and measures a first and second pressure drop in the flow characteristic, as well as the valve position and time. The process further detects time required to achieve a steady-state in the flow characteristics. These measurements are recorded and used in calculating appropriate valve positions. | 12-15-2011 |
| 20140013820 | Ported Bushing for a Pressure Switch Housing - A ported bushing for use with a pressure switch for monitoring the pressure of pressurized hydrocarbons flowing through a pipeline is provided, the ported bushing having a main body containing a threaded opening for attaching the pressure switch, two threaded test ports for attaching testing equipment thereto and a threaded end for attaching the ported bushing to a valve attached to the pipeline. The ported bushing can include a tubular body, and can be configured to adapt to different diameters of pressure switches and valves. The ported bushing can further include flattened surfaces for use with a wrench to rotate the bushing. The ported bushing can further include a gauge and a test valve coupled to the test ports to enable the testing of the pressure switch in-situ when the valve is closed. | 01-16-2014 |
| 20140338421 | DEVICE FOR TESTING PRESSURE SENSORS FOR INTERNAL COMBUSTION ENGINES - The invention relates to a device for testing pressure sensors for internal combustion engines, comprising a pressure chamber, which has an inlet opening, an outlet opening, and a test opening for receiving a pressure sensor to be tested, a valve for opening and closing the inlet opening, and a valve for opening and closing the outlet opening. The valve for opening and closing the inlet opening comprises a rotatably mounted roll as a closing element. The roll has a radially continuous bore hole, wherein the bore hole is in line with the inlet opening in a first rotational angle position of the roll and the roll closes the inlet opening in a second rotational angle position. | 11-20-2014 |
| 20150369393 | PRESSURE REGULATOR - A pressure regulator for liquid media includes a through-flow path which extends between two connections for a medium-conducting line. The through-flow path is equipped with a valve seat which can be released or closed by a closing element that is mounted in a movable manner between a closing position and a release position. A wear of the closing element and/or the valve seat can be monitored during ongoing operations using a wear sensor device. | 12-24-2015 |
| 20160084405 | ONLINE FULL STROKE TESTING OVERPRESSURIZATION SAFETY RELIEF VALVE - Cycling, self-checking, fail-open block valve system that continuously cycles such that the user of the block valve system can determine if the system is operational at all times. A dual port, tandem block valve body contains two block valves which alternate between full open and fully closed. The full open and full closing cycle is monitored for any changes, and the operator is alerted if one of the valves is not operating properly. | 03-24-2016 |
