NELSON DON HOCHBERG
Pilots at Ponderosa Pkwy, Flagstaff, AZ

4531511, Jul 30, 1985

Jul 14, 1983

6/513702

Nelson D. Hochberg - Flagstaff AZ

F24J 302

126450

A form of insulation is disclosed that takes up less room and is more efficient than insulation currently available. It has several modes of use that make it more versatile than conventional insulation. The insulation is formed from a pair of surfaces that are sealed to each other at all edges to form an enclosed chamber, a honeycomb, a cellular matrix, or truss structure is inside the said chamber, separating the surfaces. Said chamber is evacuated and the surfaces that face the chamber are constructed to be of low emittance so as to provide an insulation that significantly inhibits the transference of heat in any manner. By using a material with a high absorbtion and low emittance on one surface and a material with high emittance and low absorbtion on the opposite surface, heat can be transferred easily in one direction but poorly in the other direction, thus acting as a thermal diode. By using a material on one or both surfaces that changes emittance and/or absorbtance at specified temperatures, heat transfers easily within a temperature range and transfers poorly at other temperatures, thus acting as a thermal valve. By filling said chamber with a material that has a high heat storage capacity, the invention can be utilized to store heat for future use.

5007192, Apr 16, 1991

Oct 19, 1988

7/259715

Nelson Hochberg - Flagstaff AZ

G09F 318

40661

An improved navigation lapboard having two clear sheets clamping sheets of paper between them which allows viewing of the paper and writing on the acrylic sheets without writing directly on the paper. The lapboard is sized to hold an aviation chart and a flight plan side by side and also has holders for writing instruments and clips to compress the plastic sheets together. The lapboard also holds additional writing and reading material on top of the plastic sheets.