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:
Nov. 28, 2000
Filed:
Apr. 28, 1997
Shinkichi Sasaki, Fukushima-ken, JP;
Harutaka Sekiya, Fukushima-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
On the upper surface of a cartridge case 4, there are formed a pair of press protrusions 4a situated on both sides thereof, a recess 4b situated between the two press protrusions 4a, first and second swelled portions 4c and 4d situated at the front and rear ends of the recess 4b of the cartridge case 4 and stopper protrusions 4e formed so as to continuously extend from both sides of the rear end of the second swelled portion 4d, the configurations of the front and rear end surfaces with respect to the direction in which the disc cartridge 3 is inserted being different from each other. On a front plate 1 having an opening 2 into which this disc cartridge 3 is to be inserted, there are formed a pair of protrusions 1a protruding downwards from the upper side of the opening 2 and a pair of reverse insertion preventing sections 1b situated on the inner side of these protrusions 1a, wherein the contour of the protrusions 1a substantially coincides with the configuration of the recess 4b at the rear end surface of the cartridge case 4, and wherein the contour of the protrusions 1a and the reverse insertion preventing sections 1b put together substantially coincides with the configuration of the recess 4b at the front end surface of the cartridge case 4.