Matches 1 - 37 out of 37


Match Document Document Title
9035781 Apparatus and method for automatically detecting and alerting of gas-out conditions for a gas appliance during operation  
A gas appliance monitoring apparatus for automatically detecting and alerting to a “gas-out” condition of a gas appliance during operation, and/or for alerting to the presence of prolonged...
8915115 Piston prover  
A piston prover comprises a measurement cylinder; a hydraulic cylinder coupled with a downstream end of the measurement cylinder; a measuring piston that moves a predetermined distance through the...
8826717 Small volume prover apparatus and method for providing variable volume calibration  
A small volume prover (SVP) apparatus and method for providing variable volume calibration. The apparatus includes a precision bore cylinder and a piston configured with a valve arrangement in...
8783088 Apparatus and method for determining displacer position in a flowmeter prover  
Apparatus and methods for proving a flowmeter. In one embodiment, a flowmeter prover includes a flow tube, a displacer, and a signal analyzer. The displacer is moveable in a flow passage of the...
8739597 Apparatus and method for proving at low temperatures  
Apparatus and methods for proving a flow meter at low temperatures. A flow meter measuring low temperature fluids (e.g., less than about −50° F., or less than about −220° F.) must still be proved....
8590562 Fluid flow detection device  
A fluid flow detection device includes a housing of non-magnetic metal, a flow passage through the housing and a valve seat in the flow passage. A magnetic valve element emits a magnetic field....
8369990 Robot platform for remotely controlled and/or autonomous inspection of technical facilities  
A robot platform is provided, which is intended in particular for remotely controlled and/or autonomous inspection of technical facilities, in particular in power stations, and comprises at least...
7881828 Bus module for connecting electrically triggered fluidic valves  
A bus module for connecting electrically triggerable fluidic valves to a data bus. The bus module has an electrical circuit configuration, which evaluates address data and user data from data...
7475586 Flow meter calibration apparatus and method  
A meter calibration apparatus includes a fluid intake conduit, a fluid discharge conduit, and a calibration cylinder connected in fluid communication with the intake and discharge conduits, the...
7171285 Mobile robot using image sensor and method for measuring moving distance thereof  
In a mobile robot and a method for measuring a moving distance thereof, by including an image capture unit for photographing the bottom surface according to motion of a mobile robot at a certain...
7157054 Membrane type gas sensor and method for manufacturing membrane type gas sensor  
A gas sensor includes a semiconductor substrate and a sensing membrane. The sensing membrane is located at the bottom of a recess, which is formed by etching the substrate, and includes a heater,...
6104970 Crawler inspection vehicle with precise mapping capability  
A crawler vehicle for inspection of the floor of a tank partially filled with a liquid includes telemetry carried by a tether between the vehicle and the remote station for communication of data...
5251489 Fluid flow measuring device  
A fluid flow measuring device having a positive displacement piston in a precise bore glass flowtube, with flexible diaphragms at opposite ends of the flowtube, to seal the flowtube from the...
5170656 Pipeline flowmeter prover control system and method  
A reciprocable piston and cylinder type flowmeter prover is calibrated by providing a liquid conducting manifold for conducting liquid to one chamber formed by the cylinder and piston while...
5076093 Flow volume calibrator  
An apparatus for calibrating a spirometer controls the temperature and moisture content of the gas which it receives and accurately measures the flow rates of gas it receives and discharges. This...
4996869 System for selecting valid K-factor data points based upon selected criteria  
A moveable fluid barrier (16) is driven from an upstream position to a downstream position through a measuring cylinder (18) connected fluidically in series with the flowmeter (22) under test to...
4766759 Apparatus and method for determining the flow characteristic of a volumetric flowmeter  
A mechanical displacement flowmeter calibrator has a first fluid line external of the measuring cylinder of the calibrator connected between the inlet and outlet thereof. A flowmeter that produces...
4637244 Meter provers  
A meter prover employs a piston arranged to slide in a bore within a proving cylinder which is coaxially disposed within a surrounding cylindrical shell. The effective area of the upstream face of...
4631951 Arrangement for testing a flow meter  
An arrangement for testing a flow meter which issues a first train of pulses in response to the rotation of a rotatable member thereof includes a measuring cylinder-and-piston unit that has a...
4627267 Apparatus and method for determining the flow characterstic of a volumetric flowmeter  
A mechanical displacement flowmeter calibrator has a first fluid line external of the measuring cylinder of the calibrator connected between the inlet and outlet thereof. A flowmeter that produces...
4569220 Flow prover with seal monitor  
A flow prover with seal monitor includes a housing with a cylinder and a piston-like displacer sealingly conveyed along the cylinder by the fluid flow to be measured. The displacer includes at...
4481805 Meter prover apparatus and method  
According to the invention, fluid is adapted to flow through a piston and cylinder disposed in the housing of a meter prover. The cylinder is telescopingly received within the piston. The fluid is...
4481806 Detector for a meter prover  
A prover detector comprising a barrel having a longitudinal bore formed therethrough to receive a proximity switch mounted in one end thereof and a piston mounted in the other end thereof to...
4419880 Apparatus for calibrating fluid flow meters utilizing digital techniques  
Apparatus for calibrating a fluid flow meter includes a meter prover for detecting a known volume of fluid through the meter including a chamber of known volume, a piston to be moved rectilinearly...
4365503 Apparatus for calibrating meter prover encoder  
Apparatus for calibrating a meter prover is disclosed including a chamber taking the form of a substantially perfect right circular cylinder, a piston adapted for rectilinear movement within said...
4347731 Control apparatus for meter prover  
Apparatus for calibrating a flow meter under test is disclosed as including a chamber having an opening to be coupled by a conduit to the fluid meter under test, a piston to be driven by a motor...
4324127 Spirometer calibration device and associated displacement detection system  
A device for calibrating a Spirometer includes a hand driven syringe having magnetic elements displaced along the shaft of the syringe piston at intervals corresponding to designated volumes. A...
4307601 Apparatus for calibrating flow meters and the like  
Measuring apparatus for calibrating flow meters and the like comprising a piston slidably mounted within piston cylinder means which receives gas passing through the flow meter being calibrated to...
4266426 Apparatus for calibrating the rate of delivery of injection pumps for diesel engines  
For checking the rate of delivery of an injection pump for a Diesel engine, vertical vessel is provided having a movable bottom wall formed by a piston-like member: the latter, via a mechanical...
4168413 Piston detector switch  
A piston detector switch adapted to be positioned on a pipe having an orifice in the wall thereof which may be briefly described as comprising a plate securable to the pipe having a bore extending...
3877287 Low flow gas or liquid calibrator  
An apparatus for calibrating liquid or gas flowmeters using a piston driven t a constant velocity to produce a constant flow rate through a precision bored tube. The system flow rate is determined...
3768510 METHOD AND APPARATUS FOR FLOW RATE CALIBRATION  
A flow rate calibration apparatus and method therefor is designed to accurately calibrate the flow rate of very small streams that are difficult and potentially dangerous to handle. The apparatus...
3756456 APPARATUS AND METHOD FOR A METERING SYSTEM  
An apparatus and method for a fluid metering system that employs a high resolution position sensor and electronics to very accurately control the amount of fluid dispensed. This sensor may be an...
3403544 Flowmeter calibration  
3391569 Respiration monitor calibrator  
3344667 Flow monitor  
3120118 Fluid meter calibrator  

Matches 1 - 37 out of 37