Abstract: A diaphragm valve operated by a solenoid pilot for opening and closing the gasoline passage from a pumped inlet to the nozzle of a gasoline dispenser. A valve body forms an internal fluid passage for series installation with that of the dispenser. An annular seat surrounds the body passage at an intermediate location while an upstream facing diaphragm cooperates with the seat to open and close the passage to fluid flow. A spaced apart valve plate in combination with the diaphragm form a liquid tight chamber into which gasoline at the inlet can enter through restrictive one-way orifices. Fluid pressure in the chamber aided by a bias spring urges the diaphragm toward the set in opposition to pump pressure at the inlet.The pilot valve is spring biased toward a closed relation and is loop connected from the chamber to the outlet. Energizing the pilot effects a reduction in chamber pressure enabling relatively greater inlet forces against the diaphragm to move the diaphragm toward open position.

Abstract: In fuel dispensing apparatus utilizing seven-segment electromagnetic displays each segment of all the displays is operatively driven and tested seriatum both prior to and during the dispensing cycle by measuring the current flowing therethrough. Where peak current through each segment coil exceeds a predetermined switching value within an allotted time period, an inactivating signal is emitted via a microprocessor to inactivate the drive for the respective segment. Failure to receive one or more of the inactivating drive signals per display represents a display malfunction which via the microprocessor renders the dispensing apparatus inoperable.

Abstract: A pressure gauge in which the amplifier communicating displacement motion of the pressure responsive element to the pointer indicator, is mounted in a spring suspension isolating it from the force transmitting rigid components of the gauge. The spring suspension is effected by a pair of spring members connected to the amplifier including one spring member supporting the amplifier in its isolated relation and another spring member enabling operation of the amplifier to be effected.

Abstract: An annular recessed snap-in fit is provided internally juxtaposed to an opening through the top surface of a molded plastic ski pole grip handle for supporting the dial case of a received stem and dial-type thermometer. A heat transfer composition within the tubular metal shank of the ski pole is adapted to support the distal end of a received thermometer in thermal communication with the ambient weather while convenient readability of the thermometer is provided through the top face opening in the grip handle.

Abstract: Amplifier apparatus for providing output motion correlated to condition change motion or deflection of a condition responsive element. The amplifier in a preferred embodiment is mounted onto the condition responsive element for floating conjoint movement therewith. A remotely connected actuator, extending into the motion path, defines a pivot axis for a hinged gear sector arm of the amplifier. In pivoting about the actuator axis, the sector arm operably drives a rotatable output shaft supporting a pointer or the like.

Abstract: A self-contained correction unit operable in conjunction with a gas meter measuring an actual gas volume emits a digital output signal correlated to an equivalent standard gas volume therefor by correcting the actual gas volume for prevailing conditions of temperature and/or pressure. A temperature and/or pressure transducer is utilized which when exposed to the gas flow emits an analog voltage signal proportional to absolute values of the sensed parameter. By scaling the transducer output signal to a base condition voltage representing unity, a signal proportional to the desired correction is derived which is converted to a digital signal for supplying to a divider-counter. Within the divider-counter, a series of repetitive pulses corresponding to the actual volume measured by the meter is divided by the digital correction signal to yield a digital output signal of the corrected volume at the base condition for which correction was being sought.

Abstract: A pressure measuring sub-assembly for a pressure gauge is comprised of a Bourdon tube providing total support for the gauge amplifier operably connected to drive an output pointer shaft. Th sub-assembly can be installed as a unit in a gauge housing providing a self-supporting inlet connection for the Bourdon tube.In a preferred embodiment, the amplifier is supported on the displacement portion of the Bourdon tube and in the process of manufacture a swageable clamp is loosely placed near the fixed end of the Bourdon tube to loosely receive the secureable end of an elongated wire actuator. The opposite actuator end extends into the motion path of the amplifier to define a pivot axis therefor. When calibrating the unit for linearity, the Bourdon tube is first pressurized to one-half of rated operating capacity, and while maintaining calibration pressure the clamp is subjected to a bi-directional swaging force which selectively crimps the clamp to secure it to the Bourdon tube and the actuator to the clamp.

Abstract: Customer dispensing of either unleaded or one of two or more grades of leaded gasoline products is selected by rotatable selector knobs located on the dispenser housing. Individual meters are operative by the leaded and unleaded dispensing systems which are hydraulically isolated from each other. The separate selector knobs are associated with each of the leaded and unleaded dispensing systems and are effective when actuated to render the other system inoperative by an imposed mechanical interlock. Bothe meters operate a common computers for calculating the transaction data of each dispensing sale.

Abstract: A temperature compensator for a liquid flow meter. A bellows unit is mounted in the conduit carrying the liquid measured and an output from the bellows unit is taken to a disc-and-wheel mechanical compensator by means of a flexible cable drive. An adjustable pivot lever coupling allows adjustment of the drive ratio to the compensator according to the nature of the liquid.

Abstract: An improved solid front casing for a pressure gauge that is readily field converted from a dust-tight to either a hermetically sealed air-tight or hermetically sealed liquid-tight construction. A flexible closure element is axially supported over a rear opening in the case by a threaded connection with threads formed in the case peripherally surrounding the opening. For either hermetically sealed air-tight or liquid-tight service a self-threaded closure element is replaced by a flexible diaphragm of controlled spring rate axially clamped by a threaded backup ring. Temperature induced volumetric changes imposed on the liquid fill or air fill are compensated for by the spring rate of the diaphragm. In the event of an overpressure occurring internally of the casing the diaphragm can escape from its clamping relation for affording pressure relief.

Abstract: The pumping rate of an oil well pump or other recurring event is determined by providing a force sensor, such as an accelerometer, and a transmitter arranged in a housing adapted to be affixed to the pump piston rod or drive train which move in a vertical plane. As the piston rod or drive train moves, the sensor measures gravitational and centrifugal forces, the former providing a sinousoidally varying sensor output having a period equal to the rotational or reciprocal period of the piston rod or drive train. The transmitter is a battery-powered R.F. device which is activated once each stroke or revolution by an amplifier-detector coupled to the output of the force sensor. A one-shot multivibrator is used to transmit a short burst during the on-time and such burst may be modulated for better noise rejection by the receiver. The receiver is located remote from the sensor/transmitter package and comprises an R.F. detector, amplifier and, if required, a demodulator.

Abstract: The journal and/or pilot bearings of a rotary cone earth boring bit are constructed to include alternating areas of wear resistant materials and anti-galling materials. The bearing matrix is formed by compressing a powdered alloy in the shape of the desired bearing element. The bearing matrix is sintered, thereby forming a porous bearing element. An anti-galling material is infiltrated into the porous matrix of the bearing element and the bearing element is hardened. The resulting bearing element includes areas of water resistant materials and areas of anti-galling materials.

Abstract: An earth boring system is provided with universal cutter means for boring in all types of formations. The cutter means is mounted on a drill bit body or cutterhead with said bit or cutterhead functioning to form a hole in the earth formations. At least two annular rows of major inserts are mounted in the cutter means. The major inserts project from the surface of the cutter means a substantial distance for forming circular kerfs in the earth formations being bored. An annular row of minor inserts are mounted in the cutter means between the two annular rows of major inserts. The minor inserts project from the surface of the cutter means a distance that is substantially less than the distance the major inserts project from the surface of the cutter means.

Abstract: A sealing system for a rotary rock bit retains lubricant inside the bit and acts as a barrier to the pulverized cuttings and other materials in the borehole to prevent the materials from entering the bearing area through the cone mouth opening of the rolling cone cutter. A protecting ring is positioned outside of an elastomer seal element. Both the protecting ring and the elastomer seal element are positioned in the cone mouth opening. The protecting ring is positioned in the cone mouth opening with a slight interference fit. This allows the elastomer seal element to be protected from the hostile drilling environment and increases seal life. The protecting ring retards materials in the borehole from contacting the seal element. The sealing system is provided without reducing the bearing capacity of the bit's bearing system.

Abstract: Excess pressure being supplied to a pressure gauge is controllably relieved through the gauge cavity and an unsealed aperture in a spring-like crystal. A sleeve member extends transversely in a forced engagement between the inside face of the crystal and an annular gasket compressed in surrounding relation about the inlet of the Bourdon tube. The gasket normally seals the passage clearance about the tube inlet against supply pressure leakage therepast but in response to an overpressure is displaced inwardly toward the cavity until leakage can occur. Concomitant displacement of the sleeve member deflects the crystal outwardly a like amount afforded by its spring rate matched in correlation with the maximum anticipated overpressure to be provided for.

Abstract: Fluid pressure reducing apparatus adapted for positioned placement in a fluid valve or conduit in which pressure reduction is to be effected. A disc, sleeve or other body member in the flow path defines a plurality of line-of-sight grooves of non-circular cross-section between an inlet and an outlet communicating with the upstream and downstream portions, respectively, of the valve or conduit in which it is placed. Contained positioned transverse within each of the grooves are a plurality of longitudinally spaced circular crests formed of screw threads, parallel thin discs or the like. The crests in this arrangement cooperate with the groove walls to define a single stage pressure reducer in a fluid flow path from inlet to outlet through the longitudinal open spacing therebetween.

Abstract: The casing wall about the aperture through which the Bourdon tube socket connection is received in a pressure gauge cooperates with at least two contiguous surface areas spaced apart on the socket to form a bidirectional casing-to-socket interlock thereat. By means of fasteners securing the casing to the socket, the bidirectional interlock is maintained as to afford the casing increased resistance against a percussive blow of potentially bending magnitude received in either direction.

Abstract: A globe type Y-pattern diaphragm valve for high pressure, high temperature service affording increased diaphragm cycle life, enhanced flow coefficient and features of decreased construction cost. Comprising the diaphragm in one embodiment is a resiliently supported multi-layer cartridge formed of superimposed layers of different metals having different moduli of elasticity with the upper layers being radially slotted to redistribute encountered stress loads. In an alternate embodiment the multi-layer diaphragm cartridge is comprised of superimposed layers of like composition but of varying relative thicknesses and supported to afford a controlled flexure. An auxiliary porting in the discharge passage adjacent the valve head in combination with a downstream tapered and faired beltway effects a more nearly streamlined flow path to increase the flow coefficient rating of the valve.

Abstract: The floating amplifier of a pressure gauge is mounted onto the free end of the Bourdon tube at various effective spacings therefrom correlated to offset any residual tip travel of the individual Bourdon tube.

Abstract: Mating halves of plastic composition form a tapping sleeve service connector for mounting a branch connection on an inservice plastic gas main. A tapping tool supported in communication with the branch outlet is provided in one of the sleeve halves. Emplaced lining the internal pipe gripping surfaces of the sleeve halves is a dual faced, open mesh, basket woven fabric containing a random distribution of particle abrasive bonded on each of the faces. The particle abrasive is of a relatively harder composition than the plastics of either the service connector or gas main to effectively penetrate or imbed in the opposed surfaces of each when the sleeve halves are assembled in place. By being imbedded in this manner the abrasive fabric acts to secure and prevent relative rotational slippage between the service connector and pipe on which it is mounted.