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| Number | Title | Issue Date |
| 7331705 | Static device and method of making A static device and method of making is disclosed for mixing matter flowing therethrough. The invention comprises a tube having a polygonic cross section defining a plurality of corners. The tube is spirally twisted with the plurality of corners forming a plurality ... | 02/19/2008 |
| 6949924 | Electromechanical rotation sensing device An electromechanical rotation sensing device includes a mechanical sensing system for sensing a physical parameter; a rotational member rotated by the mechanical sensing system in response to the parameter sensed; a magnetic device movable with the rotational member... | 09/27/2005 |
| 6684712 | Measuring instrument for a pressure gauge The measuring instrument for a pressure gauge comprises an indicator unit with two plates that bear rotatably an indicator shaft carrying a pinion and that furthermore bear a gear segment. The measuring instrument furthermore comprises a metal Bourdon tub... | 02/03/2004 |
| 6314816 | Measurement system for a pressure measurement device as well as a pressure measurement device The pressure measurement device has a housing (2) with a back wall (8) and a side wall (10), a measurement system arranged inside the housing as well as a connection arrangement (6) with a device connector (64) arranged outside on the housing. The measure... | 11/13/2001 |
| 5121637 | Gas cylinder gauge A gauge is described for measuring the gas pressure in high pressure gas cylinders. The gauge is mounted in the high pressure port of the cylinder valve, while gas is delivered through a lower pressure portion. The gauge comprises a cylindrical housing an... | 06/16/1992 |
| 4939338 | Welded article and method of manufacture A pressure gauge fabricated from directly welded pieces of dissimilar metals. The gauge includes a casing, a tubular socket, and a Bourdon tube. The casing is fabricated of stainless steel and has an aperture with a flange. The socket is fabricated of alu... | 07/03/1990 |
| 4838090 | Multicoil bourdon tube type pressure gauge A multicoil tube type pressure gauge arranged for direct drive of the gauge pointer and for safely handling overpressure in the event of Bourdon tube rupture comprising a casing of round configuration defining a planar upright main chamber, with the casin... | 06/13/1989 |
| 4739653 | Pressure gauge This invention relates to a sub surface pressure gauge comprising an axially displaceable drum with a chart disposed within a housing and having a selective axial movement, rotatable stylus for recordal of pressures on said chart provided on said drum. A ... | 04/26/1988 |
| 4646406 | Welded edge bourdon strip thermometer-manometer A bourdon tube for gas and liquid-filled thermometers and pressure gauges constructed by edge welding two strips of isoelastic nickel alloy to form a wall to wall low volume bourdon tube that exhibits a low ambient temperature effect and improved rangeabi... | 03/03/1987 |
| 4462301 | Bourdon tube actuator A Bourdon tube apparatus is provided for monitoring the pressure of a fluid pressure source. The output of the Bourdon tube is translated into a curvilinear motion which is transmitted to a linearly movable actuator valve or indicator. To enhance the forc... | 07/31/1984 |
| 4455874 | Digital pressure transducer A digital pressure transducer is formed by mounting a force-sensitive resonator to a structure of nonsymmetrical configuration which produces loads under applied pressure. The frequency of the resonator is measured to provide a digital indication of the a... | 06/26/1984 |
| 4387600 | Fiberoptic pressure gauge The following specification discloses a fiberoptic pressure gauge suitable for use with a tank of compressed gas. In particular, the tank of compressed gas can be utilized by an industrial worker, a fireman, or a diver wherein breathing gas has been store... | 06/14/1983 |
| 4374475 | Differential pressure gauge A differential pressure gauge of the type comprising a controlling magnetic helix device carrying a pressure indicating pointer, the position of which is controlled by a magnet magnetically coupled to same and mounted on the free end of a helically coiled... | 02/22/1983 |
| 4148123 | Method and device for producing a spring manometer measuring system as well as a tube spring manometer A method for producing a spring manometer measuring system that includes a deviation detector spring connected to an indicator by a tie rod, and the spring is subjected to a reference pressure for spring deflection measurement before producing a tie rod b... | 04/10/1979 |
| 4043197 | Flow rate transducer A rate of fluid flow measuring device utilizing a pair of helical Bourdon tubes to generate output signals, from two linear variable differential transformers, which are functions of fluid pressure and flow velocity. A thermocouple generates an output sig... | 08/23/1977 |
| 4012959 | Pressure gauge and flow meter Devices relying on the Inverse Wiedman Effect. Devices include a current conductive, magnetically anisotropic rod, through which an AC current flows. Wound about the rod is a conductive coil having output terminals. By varying the AC current, the anisotro... | 03/22/1977 |
| 3990311 | Pressure gauge flushing system A pressure gauge having two coaxial helical bourdon tubes interconnected at the pointer ends and coupled to the pointer, with an inlet line for each tube permitting fluid flow through both tubes. A valving arrangement for operation as a pressure gauge by ... | 11/09/1976 |
