Acid-base fuels for self heating food containers

Activator for initiating reaction in a heat pack and method for

Adjustable solar concentrator

Air screen for food warming table

All glass composite building panels

Apparatus and method for generating heat

Apparatus and method for heating fluid

Apparatus and method for heating fluids

Apparatus and method for warming intravenous equipment

Apparatus for collecting solar energy

Apparatus for concentration of solar radiation

Apparatus for deicing exterior parts of a railway vehicle

Apparatus for focusing and using solar energy

Apparatus for heating concrete

Apparatus for heating fluids

Apparatus for heating liquids

Apparatus for producing useful heat from solar radiation

Apparatus for recovering solar energy

Apparatus for refracting, concentrating and collecting solar rad

Apparatus for solar hot water system and method of making same