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:
Feb. 12, 1991
Filed:
Jun. 22, 1989
Applicant:
Inventor:
Leonhard Meister, Selzach, CH;
Assignee:
ETA SA Fabriques d'Ebauches, Grenchen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; G04B / ;
U.S. Cl.
CPC ...
368294 ; 368295 ; 368280 ; 29177 ; 156 731 ; 156 751 ;
Abstract
The watch case of this invention includes a caseband-back of plastic material, a metallic bezel and a packing to assure impermeability between the caseband-back and the bezel. A first annular seat extending radially into the bezel receives an annular protuberance integrally formed with the caseband in a manner such that the caseband-back and bezel become inseparable. At the same time a packing is compressed into a second seat to render impermeable the discontinuity between the caseband-back and the bezel. Assembly of the caseband-back to the bezel is effected by ultrasonic vibrations.