Abstract: This invention utilizes transparent plastic probes or a single multi-level probe, immersed in a fuel tank to detect fuel level. A light source and light sensing element is incorporated with the level probe so that as liquid touches the immersed end of the probe a change in reflective light occurs which results in a change in the electrical output of each light sensing device. The resulting signals from the light sensing devices are converted for use in fuel level gagging and for use by flight computers and similar devices. The invention also includes corporation of static electricity suppressing. coatings and an encasement cage to reduce the effect of fuel foam and fuel level fluctuations to due movement of fuel in the tank resulting from vehicle movement.

Abstract: In the field of grip enhancing devices a glove having the thickness of its material varying in proportion to the voids between the hand and an object being held produces the effect of a custom grip. This glove is useful in areas where a conforming handle would be beneficial.

Abstract: This invention relates to a device useful in photographic perspective control. More particularly the invention utilizes movable optical prisms to effect perspective control in fixed lens cameras similar to the effect of the convention "view camera".