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Class 73/861.91 - With structure to reduce friction or wear


Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein structure, other than the bearings
No. of patents: 27
Last issue date: 09/26/2006


NumberTitleIssue Date
7111520Increased sensitivity for liquid meter
A lower cost meter comprised of an inner housing constructed out of a high permeable material surrounded by an outer housing constructed out of a lower cost, lower permeable material. A port is placed in the outer housing that runs down to the surface of the inner h...
09/26/2006
6997064Fluid metering and control device
A fluid measuring device that displays fluid volume usage against fluid volume limits and a fluid control device that stops fluid delivery when the fluid volume limit is reached. ...
02/14/2006
6439062Flow anomaly detector
An apparatus for detecting an anomaly in a flowing stream includes a set of blades rotatably suspended in the flowing stream and aligned with a normal flow direction of the flowing stream. The blades are configured to rotate at one rate when the anomaly i...
08/27/2002
6343518Liquid meter with improved pivoting
The invention provides a liquid meter comprising a measurement chamber in which a spinner is caused to rotate about an axis and pivots, at least at low liquid flow rates, on a support in alignment with the axis. The pivoting motion takes place via a ball ...
02/05/2002
6311569Flowmeter having an impeller with a carrier body having a radial opening to a central boring
The device is used to determine the flow rate of a medium, e.g. of a fluid or a gas, including a housing (1) with a chamber (2) through which the medium is axially flowing and which receives an impeller wheel (10) with one blade (13), whereas the impeller...
11/06/2001
6293298Water softener valve
A water softener valve for controlling water flow to and from a water softener is disclosed that includes a cylindrical shaft extending from said inner surface of a piston chamber that fits into a pressure relief port when the piston is in the service pos...
09/25/2001
6267013Flow anomaly detector
An apparatus for detecting an anomaly in a flowing stream includes a set of blades rotatably suspended in the flowing stream and aligned with a normal flow direction of the flowing stream. The blades are configured to rotate at one rate when the anomaly i...
07/31/2001
6257073Cyclone turbine flowmeter and control system therefor
The present invention relates to a cyclone turbine flowmeter for extracting information about a flow rate or measuring the quantity of flow flowing in production facilities. The cyclone turbine flowmeter includes a cyclone turbine formed with flow channel...
07/10/2001
5654513Turbine flowmeter with simple hydrodynamic axial thrust compensation means
The turbine flowmeter includes an axially movable rotatable impeller wheel (1) consisting of an impeller hub (3) and vanes (4) connected to it; a first fixed hub (5) on one side of the impeller wheel; a second fixed hub (6) on another side of the impeller...
08/05/1997
5372048Floating-type turbine flow meter
A flowmeter which is usually attached to a garden hose or a home shower installation is provided which includes a pipe section in which is mounted a ducted turbine type rotor whose speed of rotation is sensed by an associated coil. The rotor is magnetical...
12/13/1994
5325729Gas turbine meter
A gas turbine meter that is miniaturized based on its design is disclosed. While the size of the gas turbine meter is small, it performs all the functions of prior gas turbine meters and has a large rangeability over a very large range of pressure. The tu...
07/05/1994
5277071Hydrometric vane
A hydrometric vane has a housing, an upstream casing and a downstream casing provided in the housing, an impeller rotatably supported in the housing and axially movable between the casings. The impeller has a hub which forms an annular chamber and extends...
01/11/1994
5146789Turbine flowmeter
A turbine flowmeter includes an impeller rotatably provided within a flow passage through which a fluid to be measured flows and comprising a rotary shaft which rotates together with the impeller, a pair of bearing part having bearing surfaces for axially...
09/15/1992
4918996Turbine flowmeter
A turbine flowmeter comprises an impeller which has a rotary shaft rotatable together with the impeller and is provided within a flow passage through which a fluid to be measured flows, a pair of bearing members for axially supporting the rotary shaft, an...
04/24/1990
4903533Turbine flowmeter
A turbine flowmeter comprises an impeller which has a rotary shaft rotatable together with the impeller and is provided within a flow passage through which a fluid to be measured flows, a pair of bearing members for axially supporting the rotary shaft, an...
02/27/1990
4839038Fluid strainer and flow corrector for fluid measurement device
A fluid strainer and flow corrector for use with a fluid flow measurement device, such as a turbine-type flow meter, consists of a generally conical grid of ribs attached to an annular base flange. The base flange of the strainer/flow corrector fits into ...
06/13/1989
4715234Self-cleaning and self-lubricating fluid flowmeter
A self-cleaning and self-lubricating fluid flowmeter comprising a tubular body forming an internal flow passage with a bearing support hub immovably positioned therein and forming a bearing receptacle. A rotor shaft extends into the bearing receptacle and...
12/29/1987
4648281Turbine flowmeter
A turbine flowmeter comprises a flowmeter housing through which a fluid to be measured flows, a turbine rotor rotatably provided within the flowmeter housing and comprising a rotor hub and a plurality of blades which are unitarily provided to the rotor hu...
03/10/1987
4449410Axial turbine flowmeters
In order to compensate the hydrodynamic pressure on the turbine of a flowmeter, means are provided to create a zone of reduced pressure of constant value upstream of the turbine hub, together with means for creating a zone of pressure, on the downstream f...
05/22/1984
4393724Flow meter having a rotary body
The present invention relates to a flow meter, particularly for liquids, having an impeller wheel arranged in a vertical tubular measurement bore and acted on by a flow stream. The impeller wheel has a bearing shaft, the ends of which are rotatably mounte...
07/19/1983
4333355Pressure balanced drag turbine mass flow meter
The density of the fluid flowing through a tubular member may be measured by a device comprising a rotor assembly suspended within the tubular member, a fluid bearing medium for the rotor assembly shaft, independent fluid flow lines to each bearing chambe...
06/08/1982
4327592Hydrostatic bearings for a turbine fluid flow metering device
A rotor assembly fluid metering device has been improved by development of a hydrostatic bearing fluid system which provides bearing fluid at a common pressure to rotor assembly bearing surfaces. The bearing fluid distribution system produces a uniform fi...
05/04/1982
4324145Flowmeter having a rotary body and means for improvement of the starting behavior of the rotary body
A flowmeter having a rotary body which has at least one helical spiral on its outer periphery and which is rotatably supported in a flow channel, in which a straightening blade is arranged upstream from the rotary body. The walls (e.g., 10, 11) of the flo...
04/13/1982
4155253Turbine flowmeter
A turbine flowmeter comprises a rotor comprising a hub rotatably supported on a shaft at an axial position of a flowmeter housing and a plurality of blades embeddedly fixed to the outer peripheral surface of said hub, means for detecting the rotation of s...
05/22/1979
4111046Turbine meters
A turbine meter comprising a casing of substantially hollow cylindrical shape installed within a conduit through which a fluid to be measured is flowing, an axle member supported within the casing and having an annular recess therearound; a longitudinal f...
09/05/1978
4102189Turbine flowmeter with overspeed protection
A turbine wheel is mounted for rotation in a cylindrical housing at the end of rod, the housing and rod pass through a sleeve to insert the turbine wheel in a line to intercept fluid flowing therethrough. The rotational position of the rod is controlled a...
07/25/1978
3999432Flowmeter
A flowmeter comprises an axial flow measurement turbine having a relatively thin turbine disc secured to a shaft which is supported on at least one axial bearing. At high flow rates, it is possible for a large pressure differential to build up between the...
12/28/1976
 
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