Eyeglass frame and fabrication method

Details Eyeglass frame and fabrication method Eyeglass frame and fabrication method

1999-05-17

2000-06-20

Kastler, Scott

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148564, 351 41, 351106, C22F 110

Patent

active

060773685

ABSTRACT:
A Ni--Ti superelastic alloy demonstrates superelastic properties at normal temperatures from about 0 and 30.degree. C. The superelastic alloy allows shape alteration when the temperature is in excess of 40.degree. C. The Ni--Ti superelastic alloy is produced by plastic working a composition containing essentially Ni and Ti, and subjecting the composition to heat treatment at a temperature between 600 and 800.degree. C. to impart shape memory. When the Ni--Ti superelastic alloy is used in an eyeglass frame, it allows the shape of the pad arms to be adjusted at temperatures above about 40.degree. C.

REFERENCES:
patent: 4502896 (1985-03-01), Duerig et al.
patent: 4707196 (1987-11-01), Honma et al.
patent: 4896955 (1990-01-01), Zider et al.
patent: 4935068 (1990-06-01), Duerig

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