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:
Jul. 12, 1994
Filed:
Apr. 21, 1993
Sumitomo Electric Industries, Ltd., Osaka, JP;
Sumiden High Precision Co., Ltd., Chigasaki, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A strain relief boot for an optical connector plug which can prevent the occurrence of acute bends of the connection between the optical connector plug and an optical fiber cable, whereby the deterioration of the transmission characteristic of the optical fiber cable can be prevented. The strain relief boot has a first tubular member of Nylon 6.6 having a Rockwell hardness of about 85 and a second tubular member of thermoplastic polyurethane having Rockwell hardness of about 45 connected coaxially with the first member. An outer diameter of the second member is gradually reduced away from the first member, and an end portion of the second member opposite to the first member is shaped in a cylindrical portion a thickness of which is substantially constant. Preferably, the cylindrical portion has a length of above 4.0 mm.