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:
Apr. 20, 1976
Filed:
Dec. 26, 1974
Yoshiaki Fujimori, Suwa, JA;
Kabushiki Kaisha Suwa Seikosha, Tokyo, JA;
Abstract
A water-tight watch case construction is provided which includes a case body, a crystal mounted in one end of the case body, and a back cover connected to the other end thereof. The crystal is provided with a beveled top edge and a vertical surface between the top and under surfaces thereof. The portion of the case body adjacent the vertical surface of the crystal is recessed for thereby defining a gasket seat and a peripheral flange overlying the beveled edge of the crystal. A gasket is mounted in the gasket seat and the vertical edge of the crystal is compressively engaged therewith. Underlying the crystal is a supporting flange releasably mounted in the case body for supporting the crystal along a marginal portion of the underside surface thereof. Releasably securing the supporting flange in position is a supporting frame connected to the dial assembly of the watch which is provided with an elbow abutting a relief provided on the back cover of the watch. The case body and back cover of the watch are respectively provided with corresponding threads and the back cover is threadably connected to the case body for thereby engaging the relief provided in the back cover against the supporting frame for the crystal support flange.