Abstract: A fuel holding apparatus and method utilizes a plurality of capillaries which actually confine the fuel. The fuel holding method and apparatus can be used in vehicles and high performance aircraft to reduce the likelihood of an explosive ignition of the fuel in a crash situation.

Abstract: An explosion resistant fuel tank comprises an explosion resistant insert, which comprises a compressible resilient structure. The structure is placed within a conventional fuel tank, and has interconnecting capillary-sized cells for containing a liquid fuel. The cells have equivalent cross-sectional diameters of no more than about 0.005 inch. The fuel tank also comprises means for compressing the compressible structure to a reduced volume so that the liquid fuel contained therein passes out of the compressible structure. In one version, the compressible structure is a sponge. In another version, the compressible structure comprises an elongated honeycomb structure having elongated tubular cells lined up side by side. The honeycomb is substantially incompressible along the length of the tubular cells.

Abstract: A moldable article useful for making a form-stable article is described. The moldable article comprises a formable material that is a moldable polymeric or prepolymeric substance that can be cured to a form stable state and a curing agent, in close proximity to the curable substance but isolated therefrom, in a frangible container. The container containing the curing agent is initially flexible and is rendered frangible by special treatment which is part of the invention. In use, the frangible container is ruptured to release the curing agent and the moldable article, in a first configuration, can be shaped to a second configuration in which it is maintained until the formable material is cured sufficiently for it to be form-stable in the second configuration. The moldable article can be used to make molds, casts, support for a portion of the human or animal anatomy, or other articles with diverse utilities.

Abstract: A moldable article useful for making a form-stable article is described. The moldable article comprises a formable material that is a moldable polymeric or prepolymeric substance that can be cured to a form stable state and a curing agent, in close proximity to the curable substance but isolated therefrom, in frangible hollow fibers. In use, the frangible hollow fibers are ruptured to release the curing agent and the moldable article, in a first configuration, can be shaped to a second configuration in which it is maintained until the formable material is cured sufficiently for it to be form-stable in the second configuration. The moldable article can be used to make molds, casts, support for a portion of the human or animal anatomy, or other articles with diverse utilities.

Abstract: A construction and method of forming shoe inserts in order to support the arch of the entire foot, in which a flexible container is filled with a formable material that is capable of curing at about room temperature to form an elastomeric material, the container is placed inside the shoe beneath the foot, and pressure is maintained on the foot while the formable material sets and hardens.The formable material may be provided by means of a catalyst-filled inner container with frangible walls which can be ruptured by applying pressure to the outer container, thereby to admix the catalyst with a curable elastomeric material which fills the rest of the outer container's volume.