Other

United States of America As Represented by the Secretary of the Air Force

William A Waters

Kenneth Vaccaro

Stephen M Spaziani

Joseph P Lorenzo

Eric A Martin

A system for functionally testing opto-electronic devices, such as fiber-optic infrared receiver photodiodes, in the integral wafer or other optical port-exposed status. The testing arrangement uses a portable optical probe for communicating optical signals between the testing apparatus and the tested device in coincidence with electrical energization and functional operation of the electro-optical device by the test apparatus. The optical probe signals may be correlated in time relationship or other manner with the electrical signals applied-to the device-under-test. The invention provides simple conversion between a conventional electrical semiconductor device probe station and an electro-optical device probe station.

Infrared receiver wafer level probe testing

A photo FET device having a large area backside optical energy reception surface is disclosed. The photo FET device is fabricated in the source gate and drain upward configuration using a lattice determining surrogate substrate and a mesa-forming deep etch processing sequence and then inverted onto a new permanent substrate member and the surrogate substrate member removed in order to expose the active area backside optical energy reception surface. Fabrication of the device from two possible indium-inclusive semiconductor materials and a particular gate metal alloy is also disclosed.

FET optical receiver using backside illumination, indium materials

An air conditioning unit for use in the cooling of persons includes a fan secured below the person's neck. A moistened foam necklace may be wrapped around the neck or a moistened foam pad otherwise positioned between the fan and the neck of the user. The fan of the air conditioning unit includes a frame, an electric motor mounted on the frame, a fan blade operably connected with the motor and rotatable by the motor for moving air, a battery or other power source operably connected with the motor for actuation thereof, and a switch operably connected between the battery or power source and the motor for controlling the actuation of the motor. Furthermore, the air conditioning unit includes a flexible element attached to the frame, the flexible element being constructed and arranged to be worn around the user's neck so that air generated by the moving fan blade moves against the neck area after being evaporatively cooled by the foam necklace or pad.

Device for evaporatie cooling of the neck

A lace fastener has upper and lower jaws and a latch to selectively hold the jaws in their closed position. The lower jaw has an opening through which the lace is inserted into the fastener. The upper jaw is arced so that, in the closed position, the up sides of the jaws form an elliptical opening. The teeth of the jaws are curved slightly inwardly to accentuate the elliptical relationship and are in an underbite relationship. A plurality of fasteners may be fixed with their lower jaw openings aligned with selected eyelets or other form of laceholder so that a lace can be fed in normal criss-cross fashion through the laceholder. The lace can then be tautened, even with the latches closed, by drawing it through the opening in the lower jaw and out the elliptical up side opening. The lace is secured in the taut position by closing the latches with the lace between the teeth of the fastener. A bow knot may be used, but is not required. The fastener may be similarly used in conjunction with strings, cords, lines, straps and the like.

Lace fastener

Headwear, including all forms of caps, hats, hard hats, visor type caps, to include a switchable power module capable of converting an electric motor driven air moving means from battery power to solar power wherein the solar power panel is removable.

Air conditioned headwear having convertible power module

A self-contained air conditioning unit for headwear of substantially any type comprising an electric motor and fan removably secured within a lightweight housing, said motor being secured to an air inlet screen removably securable to the headwear, a power supply holder means supporting suitable power supply means electrically connected with the motor, a switch operably connected with the power supply and motor for selective actuation of the motor and fan, and said fan being selectively operably by the motor for blowing warm or cool air onto the wearer of the headwear.

Growing community of inventors

Tulsa, OK, United States of America

William A Waters