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:
Dec. 08, 1987
Filed:
Jun. 18, 1985
James J Krusas, Sturbridge, MA (US);
Joseph J Pienta, Southbridge, MA (US);
American Optical Corporation, Southbridge, MA (US);
Abstract
An optical lens carrying support structure for use with a protective face mask, comprising a pair of lens frames, each frame comprising an eyewire and a hinge portion, the lens frames being connected by a hinged nosepiece. The support structure attaches to the face mask by a slideably releasable dove-tail connection to a trapezoidal back-block, which back-block rigidly attaches to the face mask, with two opposite faces of the trapezoidal back-block inclined with respect to each other so as to establish the proper pantoscopic angle. The face-form angle is accomplished by virtue of an angled relation of the eyewire to the hinge portion of the lens frame. The lens frames fold back toward each other, facilitating removal of the lenses and folding the face mask assembly flat.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile