| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 137870030 | Flow rate responsive | 14 |
| 20080295892 | MASS FLOW CONTROLLER - A mass flow controller has: a flow rate sensor section that measures the flow rate of a fluid and outputs a flow rate measurement signal indicating the measurement value; a flow rate control valve disposed upstream or downstream of the flow rate sensor section; a calculation section that calculates a feedback control value to the supplied to the flow rate control valve by performing at least a proportional calculation on the deviation of the flow rate measurement value indicated by the flow rate measurement signal from a flow rate setting value; and an opening control signal output section that generates an opening control signal based on the feedback control value and outputs the opening control signal to the flow rate control valve. The function used for calculating the gain value in the proportional calculation differs between a changing period and a stable period. | 12-04-2008 |
| 20100101659 | FUEL TRANSFER SYSTEM - A fuel transfer system for use with a motor vehicle of the type having a fuel tank and a fuel sending unit in the fuel tank for pumping fuel thorough a fuel line to the vehicles engine when the engine is idling where the fuel transfer system allows fuel in the fuel tank to also be delivered to an auxiliary fuel vessel such as another fuel tank, a fuel container, or an engine powered machine is provided. A fuel fitting for connecting the fuel line between a vehicle's fuel tank and engine to a fuel transfer system that can deliver fuel to an auxiliary fuel vessel is also described. | 04-29-2010 |
| 20100139782 | DISPENSING EQUIPMENT UTILIZING CORIOLIS FLOW METERS - An apparatus for dispensing liquid fuel comprises a plurality of inlet valves, each connected in-line with a respective inlet pipe in fluid communication with a respective source of a specific liquid fuel. A plurality of outlet valves are also provided, each connected in-line with a respective outlet pipe. A respective fuel hose is in fluid communication with each of the outlet pipes. The apparatus further comprises a coriolis flow meter located between the inlet valves and outlet valves, the coriolis flow meter providing a flow signal indicative of flow therethrough. A controller is operative to receive the flow signal and control the valves such that selected inputs of specific liquid fuels are dispensed to at least one of the fuel hoses. In accordance with an exemplary embodiment, the selected inputs of specific liquid fuels may include individual liquid fuels and blended combinations thereof. For example, the specific liquid fuels may include at least two of the following: a first octane gasoline, a second octane gasoline, diesel fuel, biodiesel and ethanol. | 06-10-2010 |
| 20100212752 | Shut Off Protection For Hot Water Heater - A system that shuts down water flow to a water heater of a residence or commercial building upon detecting a leak that includes first and second valves, and first and second valve actuators that operate to control the first and second valves, respectively. Preferred systems also include first and second sensors that measure the flow of water into and out from water heaters, respectively. Preferred systems further include controllers that receive signals from each of the first and second sensors. Such controllers controllably communicate with each of the first and second valve actuators to close the first and second valves, respectively, when a flow difference is detected that is greater than a predetermined threshold. | 08-26-2010 |
| 20120138162 | APPLICATOR FOR THE DELIVERY OF SOLUTIONS AND MATERIALS IN A PRESSURIZED FLUID SYSTEM - A hand holdable applicator for delivering solutions and materials in a pressurized fluid system. Additives of solutions or materials are contained in replaceable, collapsible cartridges or liners, responsive and compressible to external fluid pressure regulated by the operator. Upon compression, additives combine with variably controlled fluid ingress and are mixed before dispersing through a nozzle having varying spraying configurations. The applicator may hold a plurality of cartridges, and additives may be administered separately or in combination. | 06-07-2012 |
| 20120145255 | SCENT NEBULIZER FOR AIR HANDLING SYSTEMS - A jet nebulizer capable of producing a small particle mist for injection into any existing whole room/house/building air distribution system. The device pumps liquid scent from a bulk container through a supply line. The unit is turned on, a flow switch is closed, power is applied to a timer and a solenoid, opening the solenoid and starting the timer. Pressure in the supply line drops and closes the pressure switch which turns the pump on, forcing the liquid scent through a nebulizer nozzle into the air handling system. The pump runs according to the timer, and will continue to run until the timer shuts the solenoid valve. Once the timer shuts the solenoid off pressure builds in the supply line. The pressure opens the water pressure switch which turns the pump off. | 06-14-2012 |
| 20140124045 | FLUID INJECTION SYSTEM - A fluid injection system for dispensing a solution into a fluid flow in a flow line, the fluid injection system including a storage tank having product to be dispensed therein; an inlet connection diverting fluid from the flow line into the tank; an outlet connection returning a mixture of fluid/product back into the flow line; a metering gauge in fluid communication with the inlet connection measuring water flowing into the tank; and a metering head connected to the storage tank and having multiple ports for connection to the inlet connection depending on whether the product to be dispensed is in liquid dry form. The inlet connection includes an inlet probe having an opening defined by an arc at a downstream side. The outlet connection includes an outlet probe having an opening having an angled cut facing downstream, such that a pressure differential is created between the inlet and outlet probes. | 05-08-2014 |
| 20150083233 | APPARATUS AND METHOD FOR BRAZING - A brazing system has a first gas source, a second gas source, an enclosure, a brazing torch, and a control system configured to control a ratio of the first gas source and the second gas source. | 03-26-2015 |
| 137870040 | Pressure differential | 6 |
| 20100024896 | DISPENSER WITH INLINE PRESSURE REGULATOR - A proportioning dispenser of concentrated chemical mixed in a diluent such as water includes a water valve, an in-line water pressure regulator downstream of the valve and an eductor downstream of the regulator. When the valve is open, water flows to the regulator, and a pressure regulated water flow passes to the eductor when the valve is closed, no water flows to the regulator, which sees pressurized water only when the water valve is open during a dispensing cycle. More accurate dilution ratios are achieved over a wide range of incoming water line pressures. In an alternate embodiment, a water valve and a regulator are formed in a common housing with the regulator operationally downstream of the valve. | 02-04-2010 |
| 20100154895 | Pressure Sensor, Differential Pressure Type Flow Meter, and Flow Rate Controller - A pressure sensor having a structure in which compressible fluid is prevented from stagnating in the vicinity of a pressure-receiving surface of the pressure sensor in the interior of a pressure introducing portion is provided. In a pressure sensor including a sensor body arranged in a pressure introduction flow channel branched in a T-shape upward from a primary fluid flow channel in which fluid to be subjected to pressure measurement flows, the pressure introduction flow channel includes an inclined surface extending in a direction to increase an opening area on the side of an inlet port of the fluid on a wall surface on the downstream side in terms of the direction of flow of the fluid. | 06-24-2010 |
| 20110041927 | Fluid Displacement Regulated Line Feed System - A liquid additive feed system for a pressure controlled fluid flow line, which may include a liquid reservoir, a manifold, a flow line pressure regulation module, a flow controlled inlet line, a flow controlled feed line, and a diffusion interface, which dynamically adjustably delivers a metered dosage of liquid additive into a controlled aqueous flow delivery system. | 02-24-2011 |
| 20110155259 | CONTROL ARRANGEMENT HAVING A PRESSURE LIMITING VALVE - The invention relates to a control arrangement having a pressure limiting valve or a proportional throttle valve, having a control device allowing volume flow control. In addition to the pressure limiting function, an identical valve can thus also be used as a flow control valve for high volume flows. | 06-30-2011 |
| 20130146150 | MULTI-SEAT FLUID CONTROL SYSTEM - The present subject matter relates to a fluid control system having a first orifice to provide a first pass-area to a fluid, a first closing element to vary the first pass-area, a second orifice, smaller than the first orifice and configured in the first closing element, to provide a second pass-area to the fluid, a second closing element to vary the second pass-area, a single actuating shaft and a balancing chamber. The first closing element includes a channel The fluid flows through the channel to and from the balancing chamber for equalizing of fluid pressure across the first closing element. The first and the second pass-areas are varied by the first and the second closing elements through movements of the actuating shaft. Further, the first and the second closing elements are contoured in the direction of movement of the shaft to vary the first and the second pass-areas. | 06-13-2013 |
| 20140283922 | SPRING ASSEMBLIES FOR USE IN GAS TURBINE ENGINES AND METHODS FOR THEIR MANUFACTURE - In accordance with an exemplary embodiment, a method for manufacturing a bypass valve of a turbine engine control system is described. The bypass valve includes a proportional valve and an integrator valve and the integrator valve includes an integrator spring assembly. The method includes forming the integrator spring assembly using an additive manufacturing technique. The integrator spring assembly comprises first and second end portions with a spring portion disposed between the first and second end portions. The first and second end portions and the spring portion are formed as an integral unit without welding or brazing using the additive manufacturing technique. The method further includes assembling the integrator spring assembly, the integrator valve, and the proportional valve into a complete bypass valve assembly. | 09-25-2014 |
