Matches 51 - 100 out of 138 < 1 2 3 >


Match Document Document Title
6009762 Fluid flow detector  
A system and method for determining a volume rate fluid, particularly liquid such as sewage, comprises a conduit for passage of sewage, a freely pivotable flap valve mounted at an outlet of the...
6003387 Flow sensor for use on crop harvesting having two arms and a middle integrated portion extending in the flow path  
An improved flow sensor is disclosed for use with a crop harvesting device to determine flow volume of a crop yield product. The improved flow sensor is of the type which uses a strain gauge and...
5970802 Relating to mass flow measuring apparatuses  
In the field of mass flow measuring apparatuses, it is known to provide a sensor member for the establishment thereon of streamline flow of bulk material, in which the sensor member design is...
5959219 Capacitive gas flow sensor  
A gas flow sensor particularly useful for the measurement of relatively low flow rates. The sensor includes a flexible vane affixed to a substrate. One end of the vane is conductive and is...
5895866 Micromachined silicon micro-flow meter  
A micromachined, monolithic silicon flow meter includes a vane 28 from which projects a hinge. The hinge is provided by torsion bars 24. The hinge supports the vane 28 for rotation about the...
5890515 Flow control valve with a flow meter  
The height of the valve with a flow meter shall be as small as possible, enabling it to be mounted in restricted spaces. In order to achieve this, all adjusting and display movements are not...
5767419 Hall effect fluid flow switch and flow meter  
A fluid flow monitoring system comprised of a permanent magnet mounted on a bendable spring blade that provide an output from a Hall effect transducer as the permanent magnet is deflected toward...
5736652 Mass flow metering device  
A device (21) for metering the mass flow of bulk material, such as grain or other crop material, comprises a sensor member (51) with a curved surface (53) installed adjacent the outlet of a...
5663508 Silicon flow sensor  
A silicon flow sensor is provided having an uncomplicated design and construction, while also exhibiting a desirable level of sensitivity for use in automotive applications. The primary sensing...
5383470 Portable spirometer  
The invention is a portable spirometer for measuring the respiration rate of a patient. In detail, the invention includes a housing having a top and bottom, and first and second ends with an air...
5319967 Wind speed indicator  
The present invention comprises a wind speed indicating device wherein a plurality of panels of flexible fabric are attached to a vertically disposable holding component. Each panel of flexible...
5282389 Apparatus for measuring agricultural yield  
An improvement in an apparatus for processing an agricultural crop, which processing apparatus has structure for separating waste from a crop to provide a clean yield product and an elevator for...
5269344 Supply valve and arrangement for fire suppression water sprinkler system  
A supply valve and an arrangement for supplying, testing and draining a fire suppression water sprinkler system includes a supply valve which has a valve member with at least first, second and...
5253651 Ventilatory instrument for measuring peak expiratory flow  
A peak flow meter has a flexible resilient vane which is rigidly mounted by one end and which has its other end engaged with a slider indicator which slides in a slot formed in a curved wall of...
5211180 Respiratory test apparatus  
A respiratory test apparatus for lung function comprises a chamber into which air can be blown by a subject to displace a piston. The chamber communicates with a space shielded from the incoming...
5191800 Anemometer  
An anemometer, in which a preferably cylindrical flow-capturing surface (1) is fastened to the control lever (10) of an electrical transducer (2) which is fixed to the top of a support (16)...
5186049 Angular momentum and banking indicator acceleration-deceleration and grade indicator system  
Angular momentum and banking indicator and acceleration-deceleration and grade indicator for use on trucks, cranes, airplanes, and boats as a multipurpose sensor. A cylinder with a damping fluid...
5131265 Real-time rheology measurement sensor  
A sensor (18) for measuring the rheology of materials is provided, comprising a deformable beam (20) simply supported at two locations (21 and 22). The beam has supported and unsupported portions,...
5126097 Fluid flow sensing and switching device  
The present invention is related to the fluid flow sensing and switching device installed in an air-conditioning system, particularly in a heat exchanger, which has a hollow body or housing to...
5078012 Momentum method for measuring uroflow parameters and the uroflow flowmeter  
A method and uroflowmeter apparatus for measuring uroflow parameters by flow impulse momentum, providing measurement and print out in real time of such parameters as the flow rate curve and of...
5049860 Two wire flow condition sensing system  
A flow sensor for detecting the absence of a minimum fluid flow in a sprinkler system. The fluid acts upon a vane positioned in the fluid path. Movement of the vane controls the position of a...
5021619 Flow responsive switch apparatus  
A liquid flow switch apparatus is provided for connection to ducting wherein liquid flows forwardly. The apparatus comprises: a support body connectible to the ducting; a stem carried by the body...
5003810 Fluid meter  
A fluid meter comprises at least three sensors each having an output dependent on a respective characteristic of the fluid to be monitored, circuitry to combine the outputs of two of the sensors...
4945344 Fluid flow sensor having light reflective slider  
A flow sensor for detecting the absence of a minimum fluid flow in a sprinkler system. The fluid acts upon a vane positioned in the fluid path. Movement of the vane controls the position of a...
4938053 Fluid metering system  
A fluid metering system includes a metering unit having a main flow channel and a bypass channel through which a portion of the total fluid flow through the unit is diverted, the bypass channel...
4938076 Target fluid flow indicator gauge  
A target fluid flow indicator gauge comprising a non-magnetic housing defining inflow and outflow ports and a cross channel including a rounded portion that is curvilinear about an axial center...
4931776 Fluid flow sensor with flexible vane  
A flow sensor for regulating the air flow rate to a cooling system can be formed as a housing for channeling the flow through a retangular cavity and a one piece vane of bent metal strip which...
4875932 Apparatus for measuring a flow rate  
An apparatus for measuring a flow rate of a fluid such as a gas, having a by-pass passage, a measurement passage, a cantilever-shaped pressure-receiving plate in the measurement passage and a...
4848926 Fluid temperature and flow monitor  
A combined fluid flow and temperature monitor composed of: a housing defining a fluid flow path having an inlet end and an outlet end, the housing having a support member; a flexible, elongated...
4827092 Flow monitor with non-rotatable mounting  
A flow meter or monitor arranged on a conduit section through which a medium to be monitored flows includes an actuating element extending through an opening in a wall of the conduit section, with...
4791254 Flow switch  
A switch is responsive to fluid flow within a conduit. It is highly sensitive to variations in flow and forms an effective seal between the fluid and atmosphere. It includes a plastic pivot ball...
4788869 Apparatus for measuring fluid flow  
Apparatus for measuring flow rate and flow direction of a fluid comprises an elongated stem coaxially disposed and supported within an elongated housing, a small diameter spherical probe connected...
4739650 Gas flow measuring apparatus  
An apparatus for measuring a flow rate of gas comprises a gas passage through which the gas to be measured flows in an axial direction thereof, a movable member linearly movable being disposed in...
4729244 Flow rate measuring apparatus  
An apparatus for measuring a flow rate of a fluid by a cantilever type pressure receiving plate which is disposed within a flow channel such that a substantially perpendicular fluid flow abuts...
4727886 Inhalation detection apparatus  
Apparatus for detecting and indicating the commencement of inhalation by a patient under test includes a housing through which a gas flow due to the inhalation is directed. A light source and a...
4625565 Wind velocity sensor  
A wind velocity sensor provided with a stationary base having a permanent magnet or a Hall element fixed thereon, an elastic plate having the other of the permanent magnet and the Hall element...
4614122 Fluid flow detector with adaptor  
The saddle of a fluid flow detector is held in sealing relation to a conduit through an adapter. The adapter has an aperture that mates with an aperture in the conduit through which the actuator...
4604906 Flowmeter  
A strain gage flowmeter in which the sensing element is an airfoil aligned with the flow of the fluid to be measured and the flow responsive thrust on the element is transverse to the flow. This...
4599907 Mass-flow sensing transducer  
A variable capacitance device generally intended for use in measuring the mass flow of air while passing through an engine-manifold. The device is capable of responding to the impingement of a...
4550616 Pneumatic flow station  
A flow velocity sensor including a target mounted in a stream so that a force which varies with the square of the fluid velocity is produced by the target and including a source of variable...
4517847 Flowmeter having uniform response under both laminar and turbulent flow conditions  
A target flowmeter includes a target body with an aperture through its impact surface, to equalize the forces generated on the target under both laminar and turbulent fluid flow conditions, as...
4397195 Flow sensing devices  
A flow sensing device comprises a shaft which is axially movable, and extends across a flow passageway, and carries an angled vane in the passageway. At each side of the passageway, the shaft is...
4377090 Through-flow monitor for liquid or gaseous media  
A through-flow monitor of the type which produces a switching signal as soon as the rate of flow through a duct reaches a particular level consists of a generally tubular housing 1 which can be...
4351192 Fluid flow velocity sensor using a piezoelectric element  
A piezoelectric, acoustic vibration detecting element is positioned in a fluid flow to be measured so as to be moved according to the intensity of the fluid flow away from a source of acoustic...
4307618 Fluid flowmeter having an optical fiber sensing element  
An inexpensive, non-obtrusive optical flowmeter is disclosed comprising at least one flexible, light transmitting optical fiber rod having an enlarged (e.g. spherical) terminus formed at a fluid...
4295044 Beverage flow switch  
A flow switch apparatus and method for use in determining the quantity of a beverage liquid passing through a conduit, the apparatus including a light path across the conduit and an actuator arm...
4250745 High dynamic response mass rate fluid flow sensor  
A restrained turbine high dynamic response mass rate of fluid flow sensor for applications to air flow sensing in internal combustion engine fuel controls. The turbine rotor vanes impart an...
4201336 Fluidic square root extractor  
A fluidic square root extractor is disclosed having an amplifier for generating an output in response to an input signal the square root of which is to be extracted, and a squaring means for...
4191951 Device for sensing fluid forces  
A device capable of sensing forces exerted by fluids, particularly liquids, and thus may be used to sense fluid level and fluid flow. Preferred embodiments of the device include a switch means...
4184466 Linear displacement flow rate meter  
A flow rate meter for gaseous media has a pivotable member rotating about a shaft in a conduit carrying the medium. The force of the flowing medium pivots the member against a restoring force. The...

Matches 51 - 100 out of 138 < 1 2 3 >