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:
Mar. 16, 1999
Filed:
Jan. 13, 1998
Kenichi Miyajima, Nagano-ken, JP;
Hirohide Sato, Nagano-ken, JP;
Shin-Etsu Polymer Co., Ltd., Tokyo, JP;
Abstract
The push button switch covering assembly of the invention comprises a push button switch covering member made from a transparent rubbery material and a clicking member with a clicking diaphragm below the covering member which imparts the operator's finger tip with a sharp feeling of clicking when the key top of the covering member is depressed. Different from a conventional push button switch covering assembly of this type, in which the pushing load on the key top is transmitted to the top of the clicking diaphragm through a downward protrusion on the lower surface of the key top, the pushing load on the key top in this invention is transmitted to the clicking diaphragm by means of an upwardly raised part formed on the top of the upper surface of the upwardly convex clicking diaphragm so that the flat lower surface of the key top is fully available for forming a layer of indicia to indicate the particular function of the push button switch through the transparent key top without the disadvantage of wearing of the indicia as in the case where the indicia layer is formed on the upper surface of the key top.