The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 1991
Filed:
May. 07, 1990
Chris R Dawson, Chula Vista, CA (US);
Gerald R Parks, Chula Vista, CA (US);
John Dondero, Chula Vista, CA (US);
Other;
Abstract
A non-fogging goggles includes a double lens that consists of a pair of two spaced-apart lenses that have an air interstice therebetween and in which the inner surface of the outer lens is coated with a metal film. The metal coating is preferably made of gold and is vacuum-deposited on the outer lens. The body heat radiated by the user is reflected on the metal film and reduces the temperature differential between the inner lens and the area enclosed by the goggles, thereby preventing fogging of the inner lens. The radiated heat will also contribute in maintaining the temperature of the lens of any corrective eyeglasses worn under the goggles.