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| Number | Title | Issue Date |
| 5984375 | Hose collar and method of use therefor A hose coupling assembly utilizes first and second hose collar halves interacting with a barbed connector for mounting to a PVC spiral hose with screws. The collar halves are identical and may be molded from flexible plastic material for ease of attachmen... | 11/16/1999 |
| 5963880 | Method for predicting water meter accuracy A method for predicting the accuracy of a water meter includes measuring a plurality of characteristics of each water meter of a plurality of installed water meters, one of the characteristics being water meter accuracy. A regression model is determined t... | 10/05/1999 |
| 5874731 | Ambient light filter An ambient light filter includes light emitting circuitry and optical detection circuitry. The detection circuitry is positioned to detect light from the emitting circuitry. A microprocessor is provided to separately control the light emitting circuitry a... | 02/23/1999 |
| 5852980 | Fuel dispenser pallet device A pallet device for supporting a fuel dispenser or other movable object comprises a pair of runner elements mounted in parallel and spaced apart relation. Each runner element defines a respective longitudinal channel, which together permit endwise inserti... | 12/29/1998 |
| 5851385 | Dry hydrant strainer with strainer hole pattern for achieving uniform flow rates A strainer for use with a dry hydrant having a fluid inlet includes an inlet tube having a first end and a second end, the first end being substantially capped, and the second end being connected to the dry hydrant fluid inlet. A plurality of apertures ar... | 12/22/1998 |
| 5804741 | Digital phase locked loop signal processing for coriolis mass flow meter A Coriolis-type fluid flow rate measuring system uses phase locked loop-based signal processing to estimate a tube vibration signal and maintain optimum tube vibrations. Analog sinusoidal sensor signals from the flow meter are digitized and processed thro... | 09/08/1998 |
| 5797421 | Dry hydrant siphon assembly A siphon jet is attached to a dry hydrant which is in communication with a body of water to increase the flow of fluid to the dry hydrant and assist in overcoming the effects of atmospheric pressure and gravity in drawing the water. A pressurized fluid so... | 08/25/1998 |
| 5750983 | Meter sensor light tamper detector A meter sensor light tamper detector includes at least one light emitter and one or more sensors. The sensors have some parameter, i.e., conductivity in the case of phototransistor sensors, to provide an indication that they are in the presence of light. ... | 05/12/1998 |
| 5717718 | Multipoint to point radiocommunications network A data collection system in which a number of remote terminals (RT) transmit data packets for reception by one or more fixed data collectors (FDC) or a portable data collector (PDC). Each remote terminal (RT) transmits data in two frequency sub-bands to w... | 02/10/1998 |
| 5701253 | Isolated current shunt transducer An isolated current shunt transducer includes a current shunt that produces a voltage difference between the current shunt's first and second ends, with the voltage difference being related to a current flowing through the current shunt. The transducer al... | 12/23/1997 |
| 5694103 | Laminated figure 8 power meter core An improved laminated ferromagnetic FIG. 8 power meter core is provided. The core is fabricated from a plurality of ferromagnetic plates and is formed in the general shape of a FIG. 8. The central leg of the core has a cross-sectional area that is larger ... | 12/02/1997 |
| 5691634 | Wye service power meter A device for monitoring power in a wye power service having three phases includes a sampling element arranged and configured to sample a current value and a voltage value from each of the three phases. A processor, coupled to said sampling element, calcul... | 11/25/1997 |
| 5650073 | Dry hydrant strainer with strainer hole pattern for achieving uniform flow rates A strainer for use with a dry hydrant having a fluid inlet comprises an inlet tube having a first end and a second end, the first end being substantially capped, and the second end being connected to the dry hydrant fluid inlet. A plurality of apertures a... | 07/22/1997 |
| 5637805 | Integrated rotary gas meter head with unitary mounting bracket A bracket for use in a meter head of a rotary gas meter supports and secures a plurality of meter components, which have traditionally been mounted in separate housings. The bracket has a first pair of opposing slots for receiving a processor printed circ... | 06/10/1997 |
| 5631554 | Electronic metering device including automatic service sensing An integral electronic meter system diagnostics package including a microprocessor, storage memory, pre-select series of system diagnostic tests, and recording any results which exceed predefined programmable thresholds, and display means for displaying e... | 05/20/1997 |
| 5629875 | Method and apparatus for interactively tuning frequency hopping transmitter A method and apparatus for interactively tuning a transmitter for use in a monitoring station is described. The monitor includes a voltage controlled oscillator producing a radiowave signal for use as a carrier. The voltage used to control the voltage con... | 05/13/1997 |
| 5609074 | Unidirectional register for electricity meter A unidirectional register apparatus includes an input gear mechanism adapted to receive a rotational input from an external source; and a yoke, operatively coupled to the input gear mechanism, and arranged to pivot between a first predetermined position a... | 03/11/1997 |
| 5594167 | Gas meter having cam for reciprocating valve covers and related methods A gas meter includes a cam for driving first and second valve covers associated with respective diaphragms. Gas flowing into the gas meter is selectively directed by the first and second valve covers to reciprocate respective diaphragms. First and second ... | 01/14/1997 |
| 5588779 | Sight, vent, and drain assembly for an underground tank An improved method and apparatus for use with an underground tank of fire suppression fluid in which the fluid level within the tank can be visually determined quickly during pumping operations. Also, the fluid in the underground tank is protected from fr... | 12/31/1996 |
| 5567875 | Modular gas meter assembly and associated manifold A gas meter installation comprises a gas meter and a regulator which are attached to a manifold. The manifold connects to a utility pipe for supplying gas and includes an orifice and various passageways for routing the gas from the utility pipe to the reg... | 10/22/1996 |
| 5559289 | Integral water flow meter and backflow prevention assembly A water meter and backflow preventer for use in a water supply system having a meter box includes a housing having water infeed and outfeed openings which are connected to supply water from a main utility pipeline to a water customer domestic system throu... | 09/24/1996 |
| 5546801 | Water flow meter adapter for residential fire service sprinkler systems An adapter for a meter chamber provides proportional metering of a flow through a maincase that is sufficiently accurate at large flow rates to avoid the unmetered loss of significant quantities of water. An essentially unobstructed passageway is provided... | 08/20/1996 |
| 5537028 | Electricity meter and method for measuring apparent power An electricity meter and method for measuring VA power consumption. The electricity meter comprises a transducer circuit receiving line current and line voltage and producing a first signal corresponding to active power on the line, and a level shifting c... | 07/16/1996 |
| 5523559 | Method and system for sensing removal of a utility meter from its socket A method and system is disclosed for indication and prevention of tampering with an electricity meter having control circuitry for automatic remote reading. The control circuitry, provided externally of the meter in a base or base extension, to which the ... | 06/04/1996 |
| 5521572 | Unshielded air-coupled current transformer An air-coupled current transformer is provided with a primary current conductor and two secondary coils connected such that the emf induced in each coil by an external disturbing magnetic flux is subtractive, whereas the emf induced by the current in the ... | 05/28/1996 |
| 5519388 | Method and apparatus for active temperature compensation in a radiowave transmitter A method and apparatus for producing a temperature stabilized frequency from a signal generator in a monitoring station is described. The signal generator monitors the voltage response of an RC circuit where the resistive portion is formed by a thermistor... | 05/21/1996 |
| 5509437 | Dry hydrant check valve A dry (unpressurized) hydrant utilizes a hydrant pipe wherein a submerged end carrying a strainer assembly is placed at a predetermined depth within a body of water, such as a lake or a pond, with the unsubmerged end being located above ground adjacent th... | 04/23/1996 |
| 5473322 | Apparatus and method for sensing tampering with a utility meter A device for detecting tampering of a utility meter includes sensors to detect a positional displacement of the meter and loss of power to the meter. On sensing a positional displacement of the meter, indicative of an attempt to remove the meter, a timer ... | 12/05/1995 |
| 5471137 | System checking and troubleshooting package for an electronic metering device An integral electronic meter system diagnostics package including a microprocessor, storage memory, logic for automatically and periodically performing a pre-select series of system diagnostic tests, and recording any results which exceed predefined progr... | 11/28/1995 |
| 5469049 | System checking and troubleshooting package for an electronic metering device An integral electronic meter system diagnostics package including a microprocessor, storage memory, logic for automatically and periodically performing a pre-select series of system diagnostic tests, and recording any results which exceed predefined progr... | 11/21/1995 |
| 5461306 | DC current detection system for a current transformer A system for detecting the presence of an average dc current component in a load comprising a current transformer 10 for supplying a signal representative of the current, and a comparison means 12 and 13, for example a microprocessor and associated RAM, f... | 10/24/1995 |
| 5451938 | RF meter reading system The RF meter reading system includes a transmitter having an encoder. Meter data is encoded and modulated using a bi-phase modulating scheme. In order to uniquely identify the start of a data transmission, a super start field, which is an "illegal" bi-pha... | 09/19/1995 |
| 5429002 | Coriolis-type fluid mass flow rate measurement device and method employing a least-squares algorithm A Coriolis-type fluid flow rate measuring system splits a fluid flow that is to be measured into two equal half flows and passes the same respectively through two physically similar conduits which are oscillated about respective parallel oscillation axes.... | 07/04/1995 |
| 5422939 | Parallel off-hook detection for both line-available and phone pick-up detection A secondary communications device, such as a modem, a facsimile machine, an automatic meter reader or an answering machine, shares a telephone line with a subscriber's telephone and must grant the telephone primary access to the line. The present inventio... | 06/06/1995 |
| 5422565 | Method and system for sensing removal of a utility meter from its socket A method and system is disclosed for indication and prevention of tampering with an electricity meter having control circuitry for automatic remote reading. The control circuitry, provided externally of the meter in a base or base extension, to which the ... | 06/06/1995 |
| 5416475 | Remote meter reading receptacle for pit lid mounting A remote meter reading receptacle for pit lid mounting includes an annular, cup-shaped housing containing a ferrite coil and electronic circuit board. This housing is mounted within an outer shroud which has an annual flange formed about its periphery. Th... | 05/16/1995 |
| 5297016 | Polyphase emulator for single phase circuit An emulator which is able to operate on a standard single phase 120 VAC line, generates simulated three-phase alternating current in order to demonstrate the operation of a polyphase electricity meter. The emulator is also capable of demonstrating the ope... | 03/22/1994 |
| 5293115 | Method and system for sensing removal of a utility meter from its socket A method and system is disclosed for indication and prevention of tampering with an electricity meter having control circuitry for automatic remote reading. The control circuitry, provided externally of the meter in a base or base extension, to which the ... | 03/08/1994 |
| 5285058 | Optical sensor control including the suspension of light radiation An optical sensor for monitoring position of a movable object comprising a LED and a phototransistor is provided with control circuitry, which is responsive to an output signal generated by the phototransistor for causing the LED to suspend radiation of l... | 02/08/1994 |
| 5241306 | System and method for introducing meter sensor hysteresis A method and system for accurate remote reading of an electricity meter including an optical detection arrangement, including a light emitter and sensor, have positioned in the light path therebetween a cutout portion of the meter shaft. Rotation of the s... | 08/31/1993 |
