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:
Aug. 07, 2007

Filed:

May. 31, 2006
Applicants:

Masato Oku, Tokyo, JP;

Yoshiyuki Sakata, Tokyo, JP;

Takashi Suzuki, Tokyo, JP;

Toshiaki Tateishi, Tokyo, JP;

Inventors:

Masato Oku, Tokyo, JP;

Yoshiyuki Sakata, Tokyo, JP;

Takashi Suzuki, Tokyo, JP;

Toshiaki Tateishi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 75/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

A protective cover is detachably fixed onto a spool to protect an optical fiber wound on the spool. The protective cover includes a pair of half-cylindrical cover members coupled together by a hinge and locked together by a locking mechanism. When an external force allows a pair of hinge members of the hinge to abut together, edges of the cover members are apart from each other at an angle of 2 to 7 degrees as viewed with respect to the center of the hinge. The edges of the cover members are then abut together by an additional external force to lock the locking mechanism.


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