| Patent Number |
Title Of Patent |
Date Issued |
| RE36401 |
Tandem rotor turbine meter and field calibration module |
November 23, 1999 |
| Methods and an apparatus for measuring gas flow with greater reliability than earlier single-rotor and double-rotor turbine meters and dual turbine meter systems are disclosed. The apparatus comprises two independent rotors, in close proximity of each other, housed in the same meter body |
| 6168210 |
Pipe coupling |
January 2, 2001 |
| A pipe coupling (10) for coupling and sealing adjacent ends of two pipe sections (12, 14) of the same or different outer diameters. The pipe coupling (10) includes an annular sleeve (24), a pair of annular gaskets (22) and a pair of follower flanges (20) that surround the adjacent ends |
| 6087957 |
Meter data gathering and transmission system |
July 11, 2000 |
| A utility data gathering system is disclosed as comprising a register including a series of index members coupled to a meter mechanism. Each index member includes a plurality of contacts and a switch arm moveable with its index member. The meter mechanism is responsive to utility con |
| 6052888 |
Method of stiffening a flexible pipe |
April 25, 2000 |
| A method of stiffening a flexible pipe using inserts or stiffeners. To account for non-uniformities and toe in of the flexible pipe, the method involves inserting a pipe stiffener into an end of the pipe and expanding the pipe stiffener within the end to a desired diameter. The stiffener |
| 6016826 |
Automatic center cavity equalizing valve |
January 25, 2000 |
| An automatic center cavity equalizing valve for equalizing pressure in a main valve. The equalizing valve includes a body with a bore for providing fluid communication between an upstream port and a center cavity port, and a downstream port and the center cavity port. A metal ball is dis |
| 5967568 |
Plastic pipe adaptor for a mechanical joint |
October 19, 1999 |
| A plastic pipe adaptor (10) includes a length of pipe (12) having a plastic pipe wall (14) with a substantially rigid pipe stiffener (32) disposed inside the pipe and a substantially rigid collar (34) disposed about the pipe exteriorly of the pipe wall (14), the collar having a recess (4 |
| 5877430 |
Pressure measuring system for gas flow meter |
March 2, 1999 |
| A turbine gas flow meter (10) includes a meter body (12) including an inlet portion (24) having an inlet body (32) mounted therein, with an exit end (30) of the body inlet portion being defined at an internal plenum (22) of the meter body, and a removable turbine meter measuring module ( |
| 5856791 |
Port expander for utility meter reading |
January 5, 1999 |
| An electronic expander (12) allows for reading a plurality of utility meters (14) with an interrogation device (30) via a common electronic access point (16) wherein the interrogation device (30) interrogates and receives meter usage data from all of the meters (14) during a single c |
| 5473932 |
Tandem rotor turbine meter and field calibration module |
December 12, 1995 |
| Methods and an apparatus for measuring gas flow with greater reliability than earlier single-rotor and double-rotor turbine meters and dual turbine meter systems are disclosed. The apparatus comprises two independent rotors, in close proximity of each other, housed in the same meter body |
| 5454031 |
Dial inbound meter interface unit which derives its power from a telephone line |
September 26, 1995 |
| The present invention is a dial in-bound MIU capable of deriving its operating current from a telephone line. The MIU is coupled to the telephone line using conventional practices. The MIU has the capacity to initiate data transmission at a predetermined time or upon demand by the cu |
| 5438329 |
Duplex bi-directional multi-mode remote instrument reading and telemetry system |
August 1, 1995 |
| The remote instrument reading and telemetry system of the present invention includes at least one instrument link interconnected to a data gathering device and a remote station interrogation apparatus. The interrogation apparatus and instrument link both include radio transmitters and |
| 5434911 |
Call in-bound remote reading and data collection system |
July 18, 1995 |
| A call in-bound remote reading and data collection system for the remote reading of utility meters, including a data processor and a remotely located meter interface unit (MIU) interconnected to at least one utility meter to be read. Also disclosed is a meter interface unit and a method |
| 5288054 |
Globe valve and method for making same |
February 22, 1994 |
| A valve is presented comprising a valve body defining a chamber, a valve stem extending into said chamber, a disk attached to the valve stem, a discrete annular seat movably disposed in the chamber, a resilient ring disposed in the chamber adjacent the annular seat, and a retainer fixed |
| 5232201 |
Plastic ball valve stem seal |
August 3, 1993 |
| A plastic ball valve having improved valve stem sealing means. |
| 5209524 |
Pipe restraining collar member having protrusions of different sizes |
May 11, 1993 |
| A pipe coupling member comprising a collar member, flanges disposed on the collar member for connecting the collar member a support member, the collar member and the support member being adapted cooperatively to substantially encircle a first pipe member, lugs disposed on the collar |
| 5190324 |
Pipe restraining member |
March 2, 1993 |
| A pipe restraining member comprising a collar member, flanges disposed on the collar member for connecting the collar member to a support, the collar member and the support being adapted cooperatively to encircle a first pipe member, lugs disposed on the collar member for connecting the |
| 5178363 |
Valve stem sealing means for prevention of fugitive emissions |
January 12, 1993 |
| A valve stem sealing means comprising first and second seal assemblies, the first seal assembly being proximate a valve plug and comprising an expandable ring adapted to be expanded by pressure within the valve to effect a first seal around the valve stem, and the second seal assembly |
| 5169124 |
Method for assembling a plastic ball valve |
December 8, 1992 |
| A method for assembling a plastic ball valve having improved sealing means. |
| 5165658 |
Plastic ball valve ball seal means |
November 24, 1992 |
| A plastic ball valve having improved ball sealing means. |
| 5129624 |
Valve stem sealing means for prevention of fugitive emissions |
July 14, 1992 |
| A valve stem sealing means comprising first and second seal assemblies, the first seal assembly being proximate a valve plug and comprising an expandable ring adapted to be expanded by pressure within the valve to effect a first seal around the valve stem, and the second seal assembly |
| 5114792 |
Moisture resistant laminated cover electronic utility meter |
May 19, 1992 |
| An improved plastic laminated structure, a method to make that structure and use of that structure as a cover for a moisture-resistance electronic utility meter register. The structure is formed by providing a plastic layer to which is laminated on one side by means of an adhesive a wate |
| 5009245 |
Pressure regulator |
April 23, 1991 |
| A diaphragm actuated pressure regulator is provided having a molded contoured diaphragm capable of operation in the upper portion of the diaphragm's deflection stroke without experiencing material deformation and thereby preserving the precision of the diaphragm's response to pressur |
