Patent ID: 8161812

Claim:
A high pressure rotary fluid meter comprising: a. an exchangeable cartridge comprising: (i) a meter body having a chamber; (ii) an inlet formed in the meter body for flowing high pressure fluid from an external source into the chamber; (iii) an outlet formed in the meter body for flowing the high pressure fluid out of the chamber; (iv) a first rotor connected to a first bearing shaft disposed in the chamber; (v) a second rotor connected to a second bearing shaft disposed in the chamber, wherein the first and second rotors are adapted to rotate as the high pressure fluid flows through the chamber; (vi) a gear box adapted to receive the first and second bearing shafts, wherein the gear box rotates with the first and second rotors, which allows the first rotor to rotate over the second rotor; (vii) a meter index coupled to the gear box; (viii) a means for counting coupled to the meter index, wherein the means for counting is adapted for counting revolutions of the first and second rotors and for converting the counted revolutions into a measurement of fluid volume of the high pressure fluid flowing through the chamber; and (ix) a display coupled with the meter index for displaying flow information, wherein the flow information comprises the counted revolutions, the measurement of fluid volume, a flow rate, or combinations thereof; b. an open lightweight bracket removably and centrally disposed over the meter body, wherein the open lightweight bracket comprises a first bracket port and a second bracket port; c. a first sleeve insert removably engaged within the inlet and the first bracket port, wherein the first sleeve insert is in fluid communication with the chamber; and d. a second sleeve insert removably engaged within the outlet and the second bracket port, wherein the second sleeve is in fluid communication with the chamber, further wherein the first and second sleeve inserts are adapted to permit the high pressure fluid to flow into and out of the chamber while simultaneously securing the open lightweight bracket to the meter body.