Matches 1 - 29 out of 29


Match Document Document Title
8656793 State of charge indicator and methods related thereto  
Embodiments of the invention relate a charge indicator for determining the mass of a fluid contained within a fluid enclosure, wherein the charge indicator responds to a deformation of a solid...
8286464 Sensing device and methods related thereto  
Embodiments of the invention relate to a device for a fluid enclosure. The device includes a sensing device that responds to a change in distance relative to a fluid enclosure. The change in...
7863035 Fluidics devices  
The invention relates to fluidics as used in medical and diagnostic equipment and relates further to means for purifying, abstracting, filtering, detecting and/or measuring analytes in liquid samples.
7402425 Stress-based electrostatic monitoring of chemical reactions and binding  
Electrostatic capacitance measurements are used to detect chemical or biological analytes, or chemical interactions, with great sensitivity. A diaphragm is coated with a material capable of...
7152469 Fluid flow sensor, method and system  
A fluid flow sensor, a method of detecting flow/no flow and flow systems employing same are provided. In one embodiment, an infrared light emitting diode (“LED”), phototransistor, rigid housing...
7117732 Fuel gauge for fuel cartridges  
Fuel gauges for fuel supplies for fuel cells are disclosed. Each fuel gauge has a property that is readable by an electrical circuit. These properties are related to the remaining fuel in the fuel...
7032447 Diaphragm gas meter  
In a gas meter, a measuring diaphragm is provided inside a measuring chamber, the measuring diaphragm is caused to reciprocate according to a gas pressure of gas flowing from a gas inflow port to...
5594167 Gas meter having cam for reciprocating valve covers and related methods  
A gas meter includes a cam for driving first and second valve covers associated with respective diaphragms. Gas flowing into the gas meter is selectively directed by the first and second valve...
5526685 Fluid flow rate measuring and controlling apparatus and method for using same  
A volumetric flow control apparatus and method for measuring and controlling the volumetric flow rate and flow volume of a fluid. The apparatus comprises a reciprocating diaphragm meter having a...
5515722 Gas meter with unitary central core defining multiple flow passages  
A dry gas meter includes a unitary core which functions as the meter casing and defines the inner sides of two gas chambers, a valve gear chamber, an index housing and multiple gasways. A central...
4848148 Cyclic motion detection arrangement  
An arrangement for detecting cycles of operation of a positive displacement diaphragm gas meter sets up a magnetic field which is directed through the non-magnetic housing of the meter toward an...
4796651 Variable gas volume flow measuring and control methods and apparatus  
A method and apparatus for measuring gas flow volume in a system (of the kind in which the amount of gas flowing in a duct can vary in response to the variation of area of a variable area orifice...
4788389 Flow switch valve  
A flow switch valve including a housing main body comprising a plurality of valve casings stacked contiguously and each having a fluid flow channel and a valve seat member, a valve member passing...
4512187 Flow rate controller  
Flow control of a shear-sensitive, i.e. pressure gradient degradable, liquid from a high pressure source to a lower pressure discharge is achieved by controlling the liquid's exposure to a...
4473082 Lung exerciser with variable resistance  
A device consisting of an adjustable volume bellows made of inexpensive materials to be used as a visual indicator and volume measurement to encourage a patient to breath deeply as an exercise is...
4350167 Respiratory exerciser  
A respiratory exercise device for measuring the volume of air inhaled by the user, the device comprising an essentially rigid transparent container having an inhalation tube by means of which air...
4345605 Lung exerciser  
A volume type lung exerciser consisting of a light bellows made of a stack of flat sheets of plastic film welded together and having an inner support skeleton of semi-rigid sheets. The bellows is...
4241740 Bellows type incentive spirometer  
A spirometer comprises an upright, hollow frame structure having opposite end portions with an expansible and contractible bellows therein responsive to exhalation and inhalation. The bellows...
3898987 Breathing responsive device and method  
A smooth, accurately spherical, lightweight ball is located in a smooth, accurately cylindrical glass tube. The ball forms a nearly gas-tight seal with the tube wall, but is free to move easily in...
3657894 SYSTEM FOR PRODUCING PILES MOULDED IN THE GROUND  
System for producing ground-moulded piles. A pressure gauge capsule exposed to the concrete in the concrete supply pipe controls the extraction of the tubing through which the concrete is supplied...
3589190 RESPIRATION TESTING APPARATUS  
A respiration testing apparatus suitable for use in pulmonary function analysis. The apparatus includes an outer casing and a horizontal bellows which has a fixed end plate secured to the casing...
3456507 SAFETY DEVICE FOR CORRECTING INSTRUMENTS FOR GASEOUS FLUID METER OF THE PLUNGING BELL-JAR TYPE  
3423551 PRESSURE SENSITIVE SWITCH  
3420225 BALANCED BELLOWS SPIROMETER  
3030808 Equipment for distributing liquid and gate valve for operating it  
2911827 Fluid meter  
2870305 Constructions for anemometers of the hot wire type  
2815006 Machine such as a motor or pump for service with gaseous or fluid media, and in particular a compressed air motor  
2795138 Gas meters  

Matches 1 - 29 out of 29