Patent application number | Description | Published |
20130214188 | ADJUSTABLE STROKE ACTUATORS - A valve actuator apparatus and method for adjusting for valve bore drift using an adjustable downstop is disclosed. The adjustable downstop comprises a downstop and a drift adjuster. The drift adjuster can me moved in an upwards or downwards direction to increase or decrease the stroke length of the operator shaft. | 08-22-2013 |
20130233389 | HYDRAULIC ACTUATORS - Hydraulic valve apparatuses employing the use of multiple pistons for opening and closing gate valves are disclosed. Additionally, hydraulic valve apparatuses with a low profile and without a top shaft are disclosed. | 09-12-2013 |
20130234055 | DUAL PISTON PNEUMATIC ACTUATOR - Dual piston pneumatic actuators used in opening and closing gate valves are disclosed. The actuators allow for pressure to vary based on opening or closing a gate valve versus keeping the gate valve open or closed. | 09-12-2013 |
20130248001 | LOW PROFILE HYDRAULIC ACTUATOR - Hydraulic valve apparatuses with a low profile and without a top shaft are disclosed. Additionally, hydraulic valve apparatuses with indicator markers and side windows are disclosed. | 09-26-2013 |
20130291946 | VALVE WITH ACTUATOR - The current invention relates generally to valves and actuators. This invention further relates to valves where the phenomenon known as “slamming” is completely mitigated and/or eliminated through self-damped valve assemblies. Additionally, this invention relates to valves having an actuator assembly capable of self-damping. Further, this invention also relates to valves that are capable of being externally adjusted without disassembling or removing any of the valve structure. | 11-07-2013 |
20130291954 | ADJUSTABLE VALVE ACUTATOR SYSTEM - A valve actuator apparatus and method for adjusting for valve bore drift using an adjustable downstop is disclosed. The adjustable downstop comprises a downstop and a drift adjuster. The drift adjuster can me moved in an upwards or downwards direction to increase or decrease the stroke length of the operator shaft. | 11-07-2013 |
20130312840 | VALVE ACTUATOR SYSTEM - A valve actuator apparatus and method for preventing latitudinal movement of a diaphragm actuator spring. The downstop is fitted with spring retainers to prevent latitudinal movement of the spring upon compression. | 11-28-2013 |
20130313451 | DIAPHRAGM ACTUATOR - A valve actuator apparatus having improved diaphragm retention to protect against tensile loading and ability to adjust the top shaft diameter within said actuator. | 11-28-2013 |
20140096676 | CYLINDRICAL LINER FOR PISTON ACTUATOR - Disclosed herein are new types of hydraulic piston valve actuators wherein the piston is replaceable with different sized pistons. Further disclosed are parts of the piston interchange system resulting in the fewest number of parts changed between one piston diameter and another piston diameter. Methods of changing from one piston diameter to another piston diameter are also disclosed. | 04-10-2014 |
20140097363 | FLOATING SEAL RETAINER - Configurations of piston actuators having seal retainers doubly acting as pressure chambers are disclosed. Further disclosed are methods of installing pressure chambers in piston actuators. | 04-10-2014 |
20140097364 | ADJUSTABLE DIAPHRAGM RETAINER PLATE - Disclosed herein are improved diaphragm actuators capable of preventing the inhibition of movement of a diaphragm retainer plate when a stretched or improperly sized diaphragm is used. Such diaphragm retainer plates may be adjustable such that the thickness from the distal side to the proximal side is increased. Methods of preventing such inhibition of movement are also disclosed. | 04-10-2014 |
20140097365 | ROTATABLE ACTUATOR SHAFT - Disclosed herein are apparatuses and methods of preventing rotational stress on the top shaft of valve actuators. Certain methods and apparatuses include a bifurcated top shaft. Other apparatuses and methods include a method of preventing rotational stress at the distal end on the top shaft of an actuator. | 04-10-2014 |