# US 9,435,962 B2 · Keyed insert cap for a fiber optic connector

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- Number: US 9,435,962 B2
- Document ID: US9435962B2
- Status: Granted
- Kind: B2
- Application number: 14/187,223
- Filed: 2014-02-21
- Published: 2015-09-17
- Granted: 2016-09-06
- Earliest claimed: 2013-02-21
- Assignees: Optical Cable Corporation
- Applicants: Vincent A. Wouters
- Inventors: Vincent A. Wouters
- Web page: https://patentgrep.com/patent/US9435962B2

## CPC

- G02B 6/3831: {comprising a keying element on the plug or adapter, e.g. to forbid wrong connection (keying element on the ferrule G02B6/3851; keying element for electrical coupling H01R13/64)}
- G02B 6/383: {Hermaphroditic connectors, i.e. two identical plugs mating with one another, each plug having both male and female diametrically opposed engaging parts; (electric hermaphroditic coupling H01R24/84, H01R13/28)}
- G02B 6/3851: {Ferrules having keying or coding means}
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

## Abstract

An insert cap for a fiber optic connector defines a key for mating connectors.

## Claims

### Claim 1

An insert cap for a fiber optic connector comprising:
a tower defining a rising edge, said rising edge having a bifurcated surface defining a key shape and a receptacle;
said rising edge comprising at least one upwardly sloping contour defining said key shape;
a central threaded bore being sized and configured to allow for attachment of a handle with a corresponding thread pattern to remove the insert cap from the fiber optic connector to clean the tips of the optical fibers used in conjunction with the connector; and
wherein said key shape comprises a pair of sloping edges terminating at respective top edges and including a rounded base having shoulders extending from said rounded base.

### Claim 2 (depends on 1)

An insert cap according to claim 1, wherein said rising edge comprises a plurality of upwardly sloping contours defining a plurality of key shapes.

### Claim 3 (depends on 1)

An insert cap according to claim 1, wherein said rising edge of said tower defines at least one excavated adjacent region beside said key shape to form the receptacle.

### Claim 4 (depends on 3)

An insert cap according to claim 3, wherein said key shape and the receptacle fit one another for mating oppositely disposed insert caps.

### Claim 5 (depends on 1)

An insert cap according to claim 1, wherein said insert cap further comprises:
a left key shape positioned along a first portion of said bifurcated surface;
a right key shape positioned along said first portion of said bifurcated surface;
a left receptacle excavated from a second portion of said bifurcated surface;
a right receptacle excavated from said second portion of said bifurcated surface, and
wherein said key shapes are so dimensioned to fit within said receptacles.

### Claim 6

An insert cap for a fiber optic connector comprising:
a tower extending substantially perpendicularly from a face of the insert cap and defining a rising edge and a top surface of said tower;
a key shape extending from said face toward said top surface and including a rounded base and at least one shoulder extending from a top edge of said key shape toward said rising edge of said tower;
a receptacle defined within said rising edge of said tower, said receptacle defined by an excavated region of said rising edge of said tower; and
a central threaded bore being sized and configured to allow for attachment of a handle with a corresponding thread pattern to remove the insert cap from the fiber optic connector to clean the tips of the optical fibers used in conjunction with the connector.

### Claim 7 (depends on 6)

An insert cap according to claim 6, wherein said excavated region is positioned between said key shape and said top surface of said tower.

### Claim 8 (depends on 6)

An insert cap according to claim 6, wherein said rising edge of said tower and said key shape define a continuous surface of said insert cap.

### Claim 9 (depends on 6)

An insert cap according to claim 6, wherein said rising edge of said tower is bifurcated to define a first region of said rising edge closest to said face of said insert cap and a second region of said rising edge adjacent to said first region such that said second region is between said first region and said top surface of said tower.

### Claim 10 (depends on 6)

An insert cap according to claim 6, wherein said receptacle is defined within said second region of said rising edge.

### Claim 11 (depends on 10)

An insert cap according to claim 10, wherein said rising edge defines a plurality of key shapes along said first region of said rising edge.

### Claim 12 (depends on 10)

An insert cap according to claim 10, wherein said rising edge defines a plurality of receptacles along said second region of said rising edge.