Temples for eyeglasses

Details Temples for eyeglasses Temples for eyeglasses

1978-10-02

1981-06-09

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Temples

351122, 351117, G02C 514, G02C 518

Patent

active

042721660

ABSTRACT:
A temple unit has a rod of metal damask with a spiral-shaped structure butt-soldered to a rigid metal profile. The rod is inserted axially into a clear plastic shell having a softness of shore-D-hardness less than 20 according to DIN No. 53 505, the West German national standard. The plastic shell is silicone rubber or polyurethane foam with very low resilience so that the unit exhibits a straight rod form in the semifinished state.

REFERENCES:
patent: 1157373 (1914-12-01), Farber
patent: 1705228 (1929-03-01), Welsh
patent: 1708204 (1929-04-01), Welsh
patent: 2259082 (1941-10-01), Ring
patent: 3993403 (1976-11-01), Brown

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