Abstract: Eyeglass frames fabricated from shape-memory alloys which have optimized elasticity properties which exhibit a combination of shape-memory and elastic properties, which utilize the shape-memory property of these alloys in fastening elements, or which utilize the flexibility and fatigue resistance of the martensite state of the alloys as a hinge element are disclosed.

Abstract: Eyeglass frames fabricated from shape-memory alloys which have optimized elastic properties, which exhibit a combination of shape-memory and elastic properties, which utilize the shape-memory property of these alloys in fastening elements or which utilize the flexibility and fatigue resistance of the martensite state of the alloys as a hinge element.

Abstract: Eyeglass frames fabricated from shape-memory alloys which have optimized elastic properties, which exhibit a combination of shape-memory and optimized elastic properties, which utilize the shape-memory property of these alloys in fastening elements or which utilize the flexibility and fatigue resistance of the martensite state of the alloys as a hinge element.

Abstract: The shape or configuration of an article made of shape-memory alloys, such as an eyeglass temple piece, or a hand held tool, is adjusted or readjusted to suit the wearer or user. While the shape-memory alloy of the article is in its martensitic state, the article may be readily deformed from its standard shape due to the alloy's low strength and malleability. The article is then confined or restrained in the customized shape so that upon heating the alloy does not return to its original austenitic or memory condition. Adequate heat is then supplied to the article to reform the austenitic state of the alloy in the desired customized shape. Preferably, the electrical resistance of the alloy is used to attain such internal heating to the resetting temperature of the article by current flow through the alloy.

Abstract: Apparatus for setting and resetting a portion of a shape-memory alloy part, the apparatus including an enclosing chamber having openings for the portion, a body of solid particles in the chamber, a pressure member connected to the chamber to immobilize the particles and the portion and a mechanism for heating the portion to a resetting temperature while immobilized, is disclosed.