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.

Date of Patent:
Sep. 06, 2011

Filed:

Jan. 15, 2008
Applicants:

Toshiaki Nakano, Tokyo, JP;

Tsuyoshi Yoshizaki, Tokyo, JP;

Inventors:

Toshiaki Nakano, Tokyo, JP;

Tsuyoshi Yoshizaki, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

An optical connector plug includes an approximately square cylindrical rear cover of an insulating member fitted over an outer surface of a stop ring, and a cylindrical front cover which is urged frontward by an elastic member and is slidable back and forth at an outer surface of a plug frame. The front cover has a flexible plate-like shutter on an inner wall, which blocks the tip of a ferrule. The shutter has an upright curved portion formed by curving a tip side in an arc shape. When the front cover moves backward, the curved portion of the shutter is pressed against a tip of the plug frame to become flat and is pressed against the inner wall of the front cover to be retained in a plate form, thereby releasing a light-shielding state of the optical fiber.


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