Protective cap for an optical fiber connector

Patent metadata

Field	Value
Publication number	US-11567270-B2
Application number	US-202117402120-A
Country	US
Kind code	B2
Filing date	Aug 13, 2021
Priority date	Feb 8, 2019
Publication date	Jan 31, 2023
Grant date	Jan 31, 2023

Abstract

A pre-terminated end of a fiber optic cable has a protective cap that protects the optical fiber and the ferrule assembly at the terminal end. The protective cap has an attachment feature enabling a pull cord to attach to the protective cap. The protective cap has a body including an exterior surface and a receptacle formed in the body and configured to receive a portion of the fiber optic cable, and the attachment feature. The attachment feature includes a cavity formed in a tip of the body and at least two openings formed in the exterior surface of the body and connected to the cavity.

First claim

The invention claimed is:

1. A terminal end assembly for an optical fiber cable, the assembly comprising:
a ferrule for receiving and terminating an optical fiber of the optical fiber cable;
a ferrule holder having a first end for receiving the optical fiber therethrough, and a second end opposite the first end for receiving and retaining the ferrule therein;
a connector body having a first end configured for receiving and retaining a terminal end of a fiber optic cable therein, and a second end configured for slidably receiving the ferrule holder therein;
a biasing member disposed within the connector body for biasing the ferrule holder axially away from the connector body; and
a ferrule retainer for retaining the ferrule holder within the second end of the connector body, the retainer comprising a tubular body for being disposed around the ferrule and ferrule holder; and
a protective cap for being disposed around the ferrule and in engagement with the ferrule retainer, the protective cap having a receptacle for receiving the ferrule therein and a leading tip opposite the first end and an attachment feature, wherein the attachment feature comprises a hollow space cavity formed in the leading tip, the cavity comprising an elongated axial distal opening in the leading tip and at least one elongated side opening formed in an exterior side surface of the protective cap, each of the elongated axial distal opening and the at least one elongated side opening connected to the cavity such that a pull cord may enter one of the openings and exit another of the openings to attach to the protective cap.

2. The terminal end assembly of claim 1 wherein the protective cap is configured to spin around the ferrule.

3. The terminal end assembly of claim 1 wherein the ferrule is a cylindrical ceramic ferrule.

4. The terminal end assembly of claim 1 wherein the protective cap is configured to fit around the ferrule such that the protective cap is retained on the ferrule by friction.

Assignees

• Clearfield Inc

Inventors

• Hill John P
• Johnson Daniel J

Classifications

• G02B6/3897

  Connectors fixed to housings, casing, frames or circuit boards (G02B6/44528 takes precedence) · CPC title

• G02B6/4471

  Terminating devices (demountable connectors G02B6/3807); Cable clamps · CPC title

• G02B6/3849 Primary

  using mechanical protective elements, e.g. caps, hoods, sealing membranes (G02B6/3816 takes precedence; provisionally see H01R13/44) · CPC title

• G02B6/3893

  Push-pull type, e.g. snap-in, push-on · CPC title

• G02B6/3825

  with an intermediate part, e.g. adapter, receptacle, linking two plugs · CPC title