3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Nippon Telegraph and Telephone Corporation

Tomoyasu Oike

Takaya Yamauchi

Akihiko Yazaki

Donald Kent Larson

James R Bylander

Sidney J Berglund

Paul N Winberg

Kenji Kuwahara

Kuniaki Terakawa

Masashi Awamori

Masanobu Toyonaga

Hiroyuki Tanase

Tatsuya Nakajima

Dai Horibe

Yukino Miyoshi

Kenta Wasai

Rentaro Ohsawa

A wire connector is described that suppresses the cutting of wires accidentally. The wire connectorincludes a wire holderthat holds at least two wires, a contactA that electrically connects the two wires and a bodythat holds the wire holder. The wire holderincludes first and second end facesand, and a wire holding portionthat includes first and second holding portionsand. On the first end face, at portions of circumferential edge portions of the openingsandof the second holding portionsand, protecting portionsthat project from the first end faceand protect the wires are provided.

Wire connector having a wire holder with an abutting portion and a protecting portion

An assembly tool is provided for installing an optical fiber in an optical fiber connector having a known length of fiber extending from the connector ferrule after termination of the optical fiber connector. The assembly tool includes a base having a connector mount disposed on a first end thereof and a cradle that holds a shaped ferrule disposed near the second end of the base, such that shaped ferrule is resiliently held within the cradle. The connector mount is configured to receive and secure the optical fiber connector to the base.

Assembly tool and optical fiber connector assembly method

An optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable onto an end of a fiber stub predisposed in the splice means to form an optical connection. A cable fixing assembly includes a cable fixing member and a cable holder for fixing an outer covering of the optical fiber cable introduced into said connector housing. The cable fixing member includes an opposing piece for slidably engaging with a guide section formed on the wall of an end cap of the connector housing. A step section is formed on the sliding surface of the opposing piece for sliding contact with the sliding surface of the guide section. The cable fixing member moves together with the optical fiber cable so as to reduce a distance between the splice means and the cable holder.

Method of assembling an optical connector and an optical connector

An optical fiber connector comprises an outer housing configured to mate with a receptacle and a collar body disposed in the outer housing. The collar body receives and secures a ferrule in a first portion of the collar body. The ferrule includes a central bore that defines an axis. The ferrule further includes a fiber stub disposed in a portion of the central bore, the fiber stub comprising a first optical fiber having a first end proximate to an end face of the ferrule and a prepared second end terminating within the ferrule. The collar body further includes a second portion that includes a housing portion to house a gripping device that grips a second optical fiber.

Remote grip optical fiber connector

The optical fiber connector includes a connector housing (), having a splice assembly () therein, and an end cap () attached to one end of the connector housing (), from which leads out a primary coating portion (). A boundary () between a portion of the primary coating portion (), obtained by removing an outer coating () of the inner cover () while leaving an inner coating (), and a portion obtained by leaving the outer coating () of the inner cover (), is located in the interior of the connector housing (). The end cap () is provided in the interior thereof with a tubular portion and an extension extending from an end of the tubular portion, the tubular portion including an insert hole for an insertion of the primary coating portion () approximately coaxially with a guiding hole formed in the splice assembly accommodated in the connector housing () for guiding the primary coating portion () leading out from the splice assembly. The extension includes a strain-control hole, communicating with the insert hole, for receiving said boundary () of the primary coating portion (), and for controlling stress at the boundary ().

Optical fiber connector

An optical connector and a method of assembling an optical connector that is capable of avoiding generation of unnecessary tension in the optical fiber cable in which plain fiber portions are optically connected to each other using a splice assembly. The optical connector comprises a connector housing having splice means configured to abut a stripped and cleaved end surface of a plain fiber of an optical fiber cable () onto an end of a fiber stub predisposed in the splice means to form an optical connection; and a cable fixing assembly (), that includes a cable fixing member () and a cable holder (), for fixing an outer covering () of the optical fiber cable () introduced into said connector housing (). The cable fixing member (), which includes an opposing piece () for slidably engaging with a guide section () formed on the wall of an end cap () of the connector housing (), is pressed in from the direction perpendicular to the axis of the optical fiber cable () and is mounted on the wall of the end cap (). A step section is formed on the sliding surface of the opposing piece () to be in sliding contact with the sliding surface of the guide section (), for moving the cable fixing member () together with the optical fiber cable () so as to reduce a distance between the splice means () and the cable holder ().

A marker for positioning near a buried object wherein the marker can be detected to locate the buried object. The marker includes a passive resonant type antenna which becomes inoperative when the initial position for the buried marker is changed. A lead wire and/or a mercury switch that is a part of the antenna serve to make the antenna inoperative due to such change in the initial position of the marker.

Growing community of inventors

Sagamihara, Japan

Tomoyasu Oike