Abstract: Impregnated veil and compression molding process of reinforcing fiber pre-impregnated continuous and discontinuous thermoset and thermoplastic materials. Veils are incorporated within the process, filming or laminating stages of the pre-pregging, either hotmelt or solvent based processes, in a variety of chosen resins. The veils help to improve visual part quality, reduce fiber splitting, and provide an isolating material in applications where incompatible materials must exist.

Abstract: Impregnated veil and compression molding process of reinforcing fiber pre-impregnated continuous and discontinuous thermoset and thermoplastic materials. Veils are incorporated within the process, filming or laminating stages of the pre-pregging, either hotmelt or solvent based processes, in a variety of chosen resins. The veils help to improve visual part quality, reduce fiber splitting, and provide an isolating material in applications where incompatible materials must exist.

Abstract: A mass flow measurement and control device includes an enclosure with a Coriolis mass flowmeter situated therein. The Coriolis mass flowmeter has a flow-tube made of a high-purity plastic material, a driver coupled to the flow tube for vibrating the flow tube, and a pickoff coupled to the flow tube for sensing Coriolis deflections of the vibrating flow tube. A pinch valve includes an elastomeric tube made of a high-purity plastic material in fluid communication with the flow tube. An actuator with a ram operatively connected thereto is situated adjacent the elastomeric tube, and a reference surface is positioned generally opposite the ram such that the elastomeric tube is squeezable between the ram and the reference surface. A controller may also be provided, which receives an output signal from the Coriolis flowmeter and provides a control output signal to the pinch valve actuator in response to the flowmeter output signal and a setpoint signal.

Abstract: A mass flow measurement and control device includes an enclosure with a Coriolis mass flowmeter situated therein. The Coriolis mass flowmeter has a flow-tube made of a high-purity plastic material, a driver coupled to the flow tube for vibrating the flow tube, and a pickoff coupled to the flow tube for sensing Coriolis deflections of the vibrating flow tube. A pinch valve includes an elastomeric tube made of a high-purity plastic material in fluid communication with the flow tube. An actuator with a ram operatively connected thereto is situated adjacent the elastomeric tube, and a reference surface is positioned generally opposite the ram such that the elastomeric tube is squeezable between the ram and the reference surface. A controller may also be provided, which receives an output signal from the Coriolis flowmeter and provides a control output signal to the pinch valve actuator in response to the flowmeter output signal and a setpoint signal.