Class 33/501.6 - Electric type

Subclass of Class 33 - Geometrical instruments
Definition: Subject matter having an indicator controlled by an electric
No. of patents: 32
Last issue date: 08/25/2009

Number	Title	Issue Date
7578068	Detecting apparatus for workpiece A detecting apparatus includes a detecting plate, a controlling box, and an indicator installed on the detecting plate. A region is defined on one face of the detecting plate, for supporting a workpiece thereon, with an edge of the workpiece abutting against one sid...	08/25/2009
7398602	Precision dendrometer Based on the proportion that exists between the length of a conductive material and its electrical resistance and using a Wheatstone bridge type circuit, with four resistances to which a given input voltage is applied, and when the bridge is in balance the output vo...	07/15/2008
7134177	Method and device for applying a scale or scale support A device for applying a scale element to a first body, in relation to which a second body can be moved in a measuring direction, the device includes an alignment element displaceable on a scale element in a measuring direction, and applied transversely thereto in a ...	11/14/2006
7107696	Electric micrometer for sensing the diameter of a cylindrical body A freestanding micrometer and method for determining the diameter of a cylindrical body, including measuring variations in diameter along a longitudinal length thereof, such as a roll used in the production of metal and paper sheet products. The micrometer comprises...	09/19/2006
7093373	Displacement measuring instrument A displacement measuring instrument (1) has a spindle (25) penetrating a gauge body (11) to be slidably supported relative to the gauge body (11) to be displaced and a lifting lever (20) manipulated from the outside for forcibly sh...	08/22/2006
6879653	Method and device for measuring the diameter of a peripheral rod in a fuel assembly of a nuclear reactor The diameter of a segment of a peripheral rod in a fuel assembly is measured between two successive spacer grids. A measuring tool is positioned at a level situated between the two successive spacer grids, the tool comprising two measuring fingers that are free to m...	04/12/2005
6822565	Wireless gauge alert A wireless gauge alert system including a near empty sensor, a near full sensor, a transmitter, a receiver, and an alert device used to monitor the fuel level status of a liquid fuel or pressure (vessel) tank having a measuring device with an output member and gauge...	11/23/2004
6782677	Tablet detecting system for molding tablet supplying apparatus A tablet detecting system ascertains whether a tablet exists in a receiving hole of a loader unit used for a molding tablet supplying apparatus or, if exists, whether the tablet has a standard size, by using a mechanical contact manner. The tablet detecting system h...	08/31/2004
6438858	Electronic feeler gauge An electronic feeler gauge and a method of using the same which provides an objective means of determining the width of a gap between two surfaces. The gauge comprises a measuring element which is insertable into the gap and an indicator coupled to the me...	08/27/2002
5440819	Actuator and programmable amplifier for an expanding plug gage head An actuator and programmable amplifier is operative for use with an expanding plug gage head operated by an axially movable plunger having a tapered operating end and an opposite cross head end. The cross head end of the plunger is releasably received and...	08/15/1995
5136789	Variable inductance transducers A linear variable inductance transducer of the kind in which a spring-loaded plunger containing a magnetic core is axially movable in a stationary housing containing a coil assembly has the external surface of the plunger made of ceramic material, guided ...	08/11/1992
5125165	Precision linear measuring device having an improved spindle mounting device A spindle for a linear distance measuring member is described herein. A linear gauge is provided with a hollow spindle having a flexible rod therein. The flexible rod is rigidly coupled at one end to the spindle, and at the other end thereof to the measur...	06/30/1992
5072524	Electronic sensor for the measurement of linear magnitudes The sensor is of the type having a cylindrical body within which a measurement rod equipped with an outer measurement feeler bears a ferrite core which by its displacements influences the impedance of a system of coils to produce an electrical measurement...	12/17/1991
4977685	Planar thickness gauge A thickness gauge particularly adapted to measuring flatness of conductive sheets such as a steel workpiece. The tester includes a pair of opposed members translatable toward each other for supporting first and second planar electrical contacts. One of th...	12/18/1990
4970798	Recess contour gauge The blade root grooves in a turbine disc are gauged for accuracy by a body resembling the blade root which includes electronic distance gauges in its surfaces. The body is introduced into a reference groove with two surfaces in contact with the groove sur...	11/20/1990
4848161	Extensometer A simple extensometer that allows remote sensing under harsh testing conditions, such as elevated temperatures. The apparatus uses two extension arms arranged such that there is no contact between the two linkages connecting the specimen to a strain measu...	07/18/1989
4831740	Device for indicating the size of an object A device for indicating the size of an object, particularly a kinescope, includes a pivotal sensing-indicating arm. A sensing portion of the arm is urged by a lever which centers the kinescope on a temporary holding fixture. An indicating portion of the a...	05/23/1989
4697246	Method and apparatus for detecting the engagement of a proper number of articles Method and apparatus for detecting article engagement errors and for calibrating engagement error detection apparatus associated with a plurality of gripper arms (16) of an insertion machine (10). Gripper arms (16) at each of a plurality of insert station...	09/29/1987
4680865	Apparatus for checking linear dimensions An apparatus for checking linear dimensions of mechanical parts comprises a bed, a longitudinal slide and two transverse slides arranged on the longitudinal slide and carrying relevant sensing elements adapted to touch the part to be checked. In order to ...	07/21/1987
4606129	Gap and flushness measuring tool A tool for simultaneously measuring the gap and flushness between two adjacent panels includes a pair of probes for engaging the panel edges and adjacent surfaces, one probe being slideable in one direction to adjust to the panel gap and the other probe b...	08/19/1986
4567663	Measuring device A device for measuring a linear dimension of an article for quality control and fabrication purposes includes an elongated, wheeled support having a stationary anvil secured adjacent an end of the support. A carriage is positionable along the longitudinal...	02/04/1986
4555855	Electronic gauge with at least one movable arm and a retraction device Electronic gauge for checking linear dimensions of mechanical pieces, comprising a casing, at least a movable arm, a position transducer and a retraction device. The retraction device includes an electromagnet fixed to an element supported by the casing, ...	12/03/1985
4473951	Gauging head for checking dimensions of workpieces A gauging head, for checking linear dimensions of workpieces, comprises a casing; two movable arms, pivotable about pins fixed to the casing, and carrying feelers for contacting the workpiece to be checked; two position transducers operatively coupled to ...	10/02/1984
4419829	Head for bore gauge A head assembly is provided for use in a bore gauge and is adapted to actuate either a mechanical readout, such as a dial indicator, or an electrical readout, such as a linear variable differential transformer connected to a digital display. A U-shaped ce...	12/13/1983
4385444	Plug comparator for checking the diameter of holes A plug comparator for checking the diameter of holes in mechanical parts, having a movable measurement unit comprising two movable arms bearing respective feeler elements which come into contact with the part to be checked. A position transducer detects t...	05/31/1983
4244108	Excitation circuitry for variable reluctance transducer Improved excitation circuitry for a variable reluctance transducer is disclosed which includes a transformer having a primary winding and a secondary winding. Power circuitry coupled to the primary winding induces an AC excitation signal in the secondary ...	01/13/1981
4233744	Apparatus for the geometrical checking of workpieces having surfaces of rotation Apparatus for checking diameters and other geometrical features of workpieces having internal and or external surfaces of rotation including a base and a plate carried by the base and having a plurality of slots for supporting and adjusting the position o...	11/18/1980
4205449	Microcalipers with calculator-assisted display An improvement in micro-calipers including a main beam, a mount slidably mounted on the main beam, a dial gage carried by the mount, a rack bar mounted on the main beam which has a toothed marginal portion, a pinion mounted on the dial gage which engages ...	06/03/1980
4197650	Compact column gage A part sizing system in which the upper and lower tolerance limits are illuminated on the same bar graph display. Electrical representations of the upper and lower tolerance limits are alternately coupled to the bar graph display so as to superimpose visu...	04/15/1980
4192073	Process gaging apparatus An apparatus for gaging a workpiece surface during an enlarging operation thereon, said enlarging taking place by a working member which enters the work surface from one direction and by reciprocally moving the workpiece relative to the working member dur...	03/11/1980
4112355	Quality and fit measuring apparatus for fasteners and their holes The tapered fastener system is one of the more reliable fastener systems for assuring the longevity of connected members, especially like those found in aircraft, which are subjected to stresses on the order of 20,000 psi and up. However, in order to achi...	09/05/1978
3996669	Wide-range device for measuring the linear sizes of mechanical workpieces A wide-range device for measuring the sizes of mechanical pieces which includes at least one measuring head, a support for said at least one measuring head with a narrow-range measuring transducer, a D.C. motor, a position transducer with reciprocally mov...	12/14/1976

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Class 33/501.6 - Electric type