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Patent Searching and Data


Matches 551 - 600 out of 4,851

Document Document Title
WO/1998/030877A1
The invention relates to a membrane for a pressure sensor, comprising a membrane surface on ring-like support elements. The membrane surface consists of a separately manufactured, pre-treated band element (3) which can be firmly attached...  
WO/1998/029328A1
A method and apparatus are disclosed for improving the consistency and quality of a frozen carbonated beverage product. The invention utilizes a method of monitoring the level of liquid in the mixing chamber of a frozen carbonated bevera...  
WO/1998/009145A1
The invention concerns a process for producing pressure sensor elements which have a metallic membrane with a thin resistant coating. A blind hole is set into a body and the resistive thin coating is applied to the body on the side oppos...  
WO/1998/002723A1
The disclosed pressure transducer assembly (200) includes an external enclosure (212), a thermal shell (216) disposed within the external enclosure, and a pressure sensor (210) disposed within the thermal shell. The pressure sensor sense...  
WO/1997/044645A2
This invention relates to device for testing and depicting characteristics of the safety valves during or out of the working of pressure system or pressure device. Device for testing safety valves according to invention comprises driving...  
WO/1997/042477A1
A micromechanical pressure and force sensor (1) has a base plate (2) on each side of which membrane plates (3) are disposed. The membrane plates (3) are interconnected in a force-locking manner by a coupling element (9). When the externa...  
WO/1997/038290A1
A package (10) includes a pressure sensor base (12), a pressure sensor diaphragm (14) positioned over the pressure sensor base (12), and a pressure sensor cap (16) positioned over the pressure sensor diaphragm (14) and secured relative t...  
WO/1997/031251A1
Spark plug (20) integrated fiber optic combustion pressure sensors (30, 36) are configured to decrease heat and fatigue damage to the critical diaphragm (40) and fiber tip (37). A cup-shaped diaphragm (40) having non-uniform thickness re...  
WO/1997/030288A2  
WO/1997/026519A1
A pressure gauge (35) for semiconductor processing that defines an internal flow path from the socket (36) inlet to the displaceable end (64) of the Bourdon tube (46) that is shelf free so as to be self drainable for internal cleansing a...  
WO/1997/026542A1
A device (10) is provided for detecting a flow restriction in pipetting transporting a fluid sample (14) for a diagnostic system. The device (10) comprises a hollow conduit (12) which transports the fluid sample (14), a housing (16), a s...  
WO/1997/026518A1
The disclosed heated pressure transducer (200) includes an external enclosure (212), a first thermal shell (216) housed within the external enclosure (212), and a sensor (210) housed within the first thermal shell (216). The transducer (...  
WO/1997/021984A2
A system for improving fluid pressure measurement in a control valve (100) includes placing a flow conditioner (12, 52) adajcent to and upstream from averaging channels (42, 82) located at the inlet (106) and outlet (116) of the control ...  
WO/1997/020194A1
A manometer for use in a patient's breathing circuit, comprising a housing forming a bore and a slider movably mounted within the bore. The slider is movable between an at-rest position, an expanded pressure range, and a contracted press...  
WO/1997/019333A1
A pressure gauge comprising a body (14) and a pressure sensing member consisting of a resiliently flexible curved tube (12) attached to said body (14) and having a fixed end (16) for communication with a fluid to enable pressure measurem...  
WO/1997/013124A1
The invention concerns a method of measuring hydrostatic pressure, in particular that of ground water, and is characterized in that air is bubbled into the ground water, the measuring line pressure is applied to an absolute pressure cell...  
WO/1997/012184A1
An apparatus and method are provided for controlling a frozen carbonated beverage product made by mixing several ingredients (12) in a mixing chamber (18). The apparatus includes a process flow block (16) that controls the flow of the in...  
WO/1997/002858A1
A breath synchronisation control unit for gas feeders which is capable of feeding a gas upon detection of expiration without fail and does not break even by the misuse thereof which is liable to occur frequently in daily use. The control...  
WO/1997/001747A1
A pressure measurement and calibration apparatus for accurately detecting fluid pressures in the range of between approximately 0 and 1000 millitorr, and more particularly in the range of between 0 and 10 millitorr, and a method for cali...  
WO/1996/035106A1
This invention is an apparatus for visually indicating fluid flow through a fluid system or apparatus such as a medical infusion device. The apparatus comprises a pair of thin, indicia bearing films (26 and 28) disposed in an overlaying ...  
WO/1996/025651A1
A pressure transducer delivers an electrical useful signal (Un) which is determined by the relative change in pressure with respect to a pressure event. Low-frequency variations in the output signal (Ux) of a sensor arrangement (1) which...  
WO/1996/018091A1
A manifold (10) includes a body having generally planar inlet surface (14). The inlet surface (14) includes a first inlet (16) and a second inlet (18) adapted for coupling to a pressurized process fluid. An outlet surface (22) on the man...  
WO/1996/016418A1
A capacitive absolute pressure sensor (10) includes a substrate (14) having an electrode (24) deposited thereon and a diaphragm assembly (12) disposed on the substrate (14). As pressure increases, the diaphragm (16) deflects, touches the...  
WO/1996/008704A1
A dome-shaped pressure vessel (36), contained in a pumping segment (10) for incorporation into a fluid delivery system, with an optimal shape for interfacing with a pressure sensing element (200), and which is capable of uniformly distri...  
WO/1996/005494A1
Insert for pressure transducers in connection with a dialysis machine. The insert (10) consists of a cup-shaped container with an inner filter unit (21) accessible via a cover (25) for connection (31) to an outer apparatus such as a drip...  
WO/1996/005493A1
A weld ring (30) for a pressure transmitter (11) welded to a corrosion resistant material (18) at one section (40) of the ring, and welded to a different material at a second section (42) of the weld ring (30). The sections (40, 42) of t...  
WO/1996/000888A1
An absolute pressure sensor subassembly includes a top cap bonded to a pressure sensor die and enclosing a reference vacuum. The subassembly is initially held in place within a housing by a vacuum or sublimeable solid adhesive while wire...  
WO/1995/033983A1
An improved fiberoptic pressure sensing system (8) is disclosed by tapering the tip end (14) of an optical fiber (12) or alternatively, by tapering or bundling a fiber or group of fibers (98) within a connector (92). By selectively-joini...  
WO/1995/024624A1
Pressure gauge for very high pressures and based upon a principle similar to the Bourdon tube, comprising a beam-shaped measuring element (10A) having an elongate cavity (12) lying eccentrically in the cross section of the measuring elem...  
WO/1995/017846A1
Calibration apparatus and method for calibrating a movable pressure sensor (18) include the use of a stop device (98) to establish a reference position outside the sensing movement range of a first sensor. While in vitro, a reference pre...  
WO/1995/008758A1
A two-wire transmitter (2) senses differential pressure, absolute pressure, and process temperature of a process fluid. The information can be used to provide an output representative of mass flow through a pipe (4). The transmitter (2) ...  
WO/1995/008759A1
A transmitter (10) provides an output indicative of pressure of process fluid. The transmitter (10) has a first body (14) with a passageway (32) filled with isolation fluid extending from a first port to a pressure sensor (16). A second ...  
WO/1994/025843A1
An isolator diaphragm (13) is formed and connected to a support member (16A) so it will withstand periodic high pressure cleaning. The isolator diaphragm (13) has a peripheral wall portion bonded to a planar support (26) surface and is f...  
WO/1994/017383A1
A pressure sensor has a substrate (21) and a layer (25) which defines together with the substrate a pressure sensor cavity (24). The layer has a diaphragm-like area (26) upon which an outer pressure may be applied. In order to create a m...  
WO/1994/014042A1
The output value of this sensor does not vary with temperature and so the nonlinearity of the output due to temperature change can be improved. The sensor comprises a housing (8) provided with a pressure detection chamber (3); a pressure...  
WO/1994/011719A1
The invention concerns a method of fabricating membranes mounted on a frame, the method including the following steps: (a) a membrane film is applied to a substrate in such a way that it can be detached from the substrate again, (b) the ...  
WO/1994/005986A1
A low range pressure sensor (10) includes a base plate of brittle material (12), and a diaphragm plate assembly (14) mounted on the base plate (12) and sealed around a periphery (16) to the base plate (12). Pressures are introduced to ca...  
WO/1993/022641A1
A device for measuring the pressure in an infusion tube (12), including a pressure sensor (20) and a housing (14) comprising at least one chamber (16) with one side defined by a deformable membrane (18) contacting the wall of the infusio...  
WO/1993/021506A1
A transmitter (8) with a flame arresting header (16) senses a pressure of a process fluid with a diaphragm (44) which is sealed to the header. The diaphragm (44) transfers the pressure of the process fluid acting on an outer surface of t...  
WO/1993/020865A1
A pressure monitor for directly measuring the pressure in a liquid in a catheter, comprising light emitting means (1), photo sensitive means (2), receiving the light from the light emitting means (1) and transforming the light received i...  
WO/1993/001481A1
An improved closed-end manometer which overcomes the problems associated with prior U-tube manometer devices. The invention comprises a small bore tube which is transparent or translucent at least along the measuring portion and which ma...  
WO/1993/001480A1
An isolator (10) for use in pressure transmitters comprises an isolating diaphragm (14) that is thin, and made of a suitable corrosion resistant metal, such as tantalum, and which must be anchored to an isolator housing (12) made of a su...  
WO/1992/022239A1
The present invention relates to a method for detecting the onsetof atherosclerosis and for detecting the degree of atherosclerosis. Accordingly, one aspect of the present invention correlates data obtained from arteries having a measure...  
WO/1992/021012A1
The invention concerns a method of measuring the pressure of a gas in a gas accumulator which can be connected up to a hydraulic-fluid circuit and in which the gas is separated from the fluid by a dividing element. When the dividing elem...  
WO/1992/017756A1
A metal thin film (58) bonds a semiconductor bonding region (54, 56) of a diaphragm layer (50) to a ceramic bonding region (44) of a high modulus support block (40). The arrangement isolates a pressure sensing diaphragm (60) from undesir...  
WO/1992/008121A1
True vapor pressure of liquid compositions, particularly multi-component compositions, is measured by a piston and cylinder apparatus (14) defining an expansible chamber (84) in which a sample of liquid is trapped, the chamber (84) is ex...  
WO/1992/008116A1
A central region (40) of an isolator diaphragm (30) used in a pressure transmitter, has a substantially flat shape at an undeflected position near room temperature and has a depressed shape at a deflected position at a colder temperature...  
WO/1991/019156A2
A device for measuring gas pressure inside cartridges has an essentially cylindrical housing (10) mounted on a base plate (13) and provided with a stepped bore (12a, 12b) in the axial direction that tapers in the direction of the shot an...  
WO/1991/004475A1
A transmitter (10) that provides an output indicating pressure difference between a line pressure and atmosphere outside the transmitter (10) is made intrinsically safe by coupling the sensor cavity (44) as well as other cavities (12, 13...  
WO/1990/006496A1
A Bourdon tube (20) pressure gauge (10) has a movement amplifying mechanism (32) comprising a pinion (30) of segment (25) shaped permanent bar magnets (29a) extending radially and terminating at a circular edge magnetically driven by a p...  

Matches 551 - 600 out of 4,851