Sight glass assembly and method for its production

Details Sight glass assembly and method for its production Sight glass assembly and method for its production

1978-03-20

1979-07-31

Kellogg, Arthur D.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

65 43, 65 59R, 351154, 73325, C03C 2702

Patent

active

041628268

ABSTRACT:
A high impact sight glass assembly and production method are described, in which the glass lens is fused into an enamel coated metal ring such that the glass lens is fused to the enamel coating and the entire glass area is under compression. The glass lens is placed in the bore of a flange, and the lens and flange ring are heated, whereby the lens flows to conform to the bore of the flange and is fused to the enamel coating.

REFERENCES:
patent: 1695830 (1928-12-01), Thurneyssen
patent: 2946156 (1960-07-01), Bailey
Hermaseal Co. Brochure filed by Applicant, untitled, showing various glass to metal and other seals offered by the Company-Received Jun. 5, 1978.

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