Abstract: A method for estimating a hydrogen loading induced change in a vibratory meter is provided. The method comprises determining a pressure and a temperature of hydrogen exposed to a vibratory element of the vibratory meter. The method also comprises calculating, based on the pressure and the temperature of the hydrogen, a concentration of the hydrogen in the vibratory element and adjusting a calibration coefficient of the vibratory meter based on the calculated concentration of the hydrogen in the vibratory element.

Abstract: A transducer assembly 200 for a vibrating meter 5 having meter electronics 20 is provided according to an embodiment. The transducer assembly 200 comprises a coil portion 204A comprising a coil bobbin 220 and a coil 222 wound around the coil bobbin 220. A magnet portion 204B comprises a magnet. The coil portion 204A and the magnet portion 204B are constrained in both the x and y axis of travel, such that the coil portion 204A is prevented from colliding with the magnet portion 204B.

Abstract: A variable mass balance bar (120-320, 520-820) is provided. The variable mass balance bar (120-320, 520-820) comprises a balance body (122-322b, 522-822) containing a balance fluid (124-324b, 524-824), wherein a mass of the balance fluid (124-324b, 524-824) is selected to balance a measuring conduit (110-310, 510-810) containing a process material.

Abstract: A variable mass balance bar (120-320, 520-820) is provided. The variable mass balance bar (120-320, 520-820) comprises a balance body (122-322b, 522-822) containing a balance fluid (124-324b, 524-824), wherein a mass of the balance fluid (124-324b, 524-824) is selected to balance a measuring conduit (110-310, 510-810) containing a process material.

Abstract: This invention relates generally to a piston assembly and more specifically to a piston assembly in a prepackaged configuration. The prepackaged piston assembly is ready for immediate installation into an engine or compressor. The piston assembly has a plurality of rings preinstalled on a piston member and a sleeve position about the piston member and the plurality of rings maintaining the rings in a compressed position ready for installation into an engine. The piston assembly is lowered into a cylinder bore, the sleeve contacts the top surface of a block and the piston assembly can be easily installed into the cylinder bore without the need for the mechanic to compress the plurality of rings. Thus the present invention reduces time and expense required for rebuilding and engine and increases the quality of the rebuild.

Abstract: This invention relates generally to a piston assembly and more specifically to a piston assembly in a prepackaged configuration. The prepackaged piston assembly is ready for immediate installation into an engine or compressor. The piston assembly has a plurality of rings preinstalled on a piston member and a sleeve position about the piston member and the plurality of rings maintaining the rings in a compressed position ready for installation into an engine. The piston assembly is lowered into a cylinder bore, the sleeve contacts the top surface of a block and the piston assembly can be easily installed into the cylinder bore without the need for the mechanic to compress the plurality of rings. Thus the present invention reduces time and expense required for rebuilding and engine and increases the quality of the rebuild.