Hewlett-packard Company

Delta Design, Inc.

Keith E G Emery

Thomas P Jones

George G Justice

Method and devices are provided that integrate various internal channels and inlet and outlet ports, configured to operate with air or fluidics, with electrical circuitry. The devices comprise internal channels and outlet/inlet ports that are integrated into multiple layers of printed circuit boards. A multi-layer printed circuit board assembly is produced by laminating the plurality of layers together. The multi-layer printed circuit board assembly can accommodate a variety of off-the-shelf components, as well as electrical circuits and electronic components.

Devices with pneumatic, hydraulic and electrical components

A system for connecting NPN sensors to current sinking inputs of a controller, and connecting PNP sensors to current sourcing inputs of a controller. A sensor output inverter uses back-to-back optoisolators and a voltage divider to generate an output signal at ground voltage when a ten to thirty volt reference voltage is applied to the input, and an output signal at the reference voltage when a ground voltage is applied to the input. The inverter circuit is preferably overmolded or potted in an in-line package using industry-standard three-pin male and female DIN-style connectors as output and input connectors respectively. The reference voltage and ground voltage are supplied to the inverter via these connectors. The sensor output inverter can be connected to a mating termination block, either directly or via cordsets, to form a water-resistant, submersible, sensor termination system.

Growing community of inventors

San Diego, CA, United States of America

Keith E G Emery