Abstract: A multi-part assembly for retrofitting into a passage of a mechanical flow meter so as to form an ultrasonic flow meter is described. The multi-part assembly comprises an ultrasonic flow measurement unit, first and second flow-modifying segments arranged either side of the ultrasonic flow measurement unit to form a flow passage through the first flow-modifying segment, the ultrasonic flow measurement unit and the second flow-modifying segment between respective distal ends of the first and second flow-modifying segments, each of the first and second flow-modifying segments having respective proximal ends, and first and second connectors arranged on the respective proximal ends of the first and second flow-modifying 10 segments configured to connect to respective first and second connectors on the ultrasonic flow measurement unit.

Abstract: A slot motor for use with secondary contacts in a circuit breaker includes a top slot motor component structured to be attached to a moving arm of the secondary contacts; and a U-shaped bottom slot motor component including a base and a pair of legs extending upward from the base, the U-shaped bottom slot motor component structured to be separated from the top slot motor component by vertical gaps between the top slot motor component and ends of the pair of legs, wherein the slot motor is structured to generate a magnetic field producing a force to maintain the secondary contacts in closed position upon passing high current through the moving arm.

Abstract: An ultrasonic meter (44) is described for measuring a flow-rate of a fluid, including a flow conduit (5) for the fluid. The flow conduit (5) extends along a first axis (6) 5 between a first opening (7) and a second opening (8). The ultrasonic meter (44) also includes two or more pairs of ultrasonic transducers (2, 3). Each pair of ultrasonic transducers (2, 3) is configured to define a corresponding beam path (9) intersecting the flow conduit (5) within a measurement region (13) of the flow conduit (5). Substantially every part of each beam path (9) makes a non-zero angle with the first 10 axis (6). When viewed projected onto a plane perpendicular to the first axis (6), a projection of a first beam path (91) intersects (25) a projection of a second beam path (92). The ultrasonic meter (44) also includes a flow deflecting member (26) supported between the first opening (7) and the measurement region (13).

Abstract: A slot motor for use with secondary contacts in a circuit breaker includes a top slot motor component structured to be attached to a moving arm of the secondary contacts; and a U-shaped bottom slot motor component including a base and a pair of legs extending upward from the base, the U-shaped bottom slot motor component structured to be separated from the top slot motor component by vertical gaps between the top slot motor component and ends of the pair of legs, wherein the slot motor is structured to generate a magnetic field producing a force to maintain the secondary contacts in closed position upon passing high current through the moving arm.