Fiber optic connectors

• US 20020191919A1
• Filed: 07/02/2002
• Published: 12/19/2002
• Est. Priority Date: 12/28/1998
• Status: Active Grant

• Current Assignee: Computer Crafts, Inc.
• Original Assignee: Computer Crafts, Inc.
• Inventors: Nolan, Richard G.
• Granted Patent: US 6,554,487 B2
• Time in Patent Office: Days
• US Class Current: 385/78
• CPC Class Codes: G02B 6/3807 Dismountable connectors, i.e. comprising plugs
• CPC Class Codes: G02B 6/3823 containing surplus lengths, internal fibre loops provisionally see also G02B6/444
• CPC Class Codes: 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
• CPC Class Codes: G02B 6/3833 Details of mounting fibres in ferrules; Assembly methods; Manufacture
• CPC Class Codes: G02B 6/3846 with fibre stubs
• CPC Class Codes: G02B 6/3869 Mounting ferrules to connector body, i.e. plugs
• CPC Class Codes: G02B 6/3875 Floatingly supported sleeves
• CPC Class Codes: G02B 6/3885 Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type optical ribbon cable G02B6/4403, G02B6/448
• CPC Class Codes: G02B 6/3888 Protection from over-extension or over-compression
• CPC Class Codes: G02B 6/3893 Push-pull type, e.g. snap-in, push-on
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/4246 Bidirectionally operating package structures

Abstract

A housing of a fiber optic connector such as an MTRJ connector has a greater surface area and ridges for improved handling and grasping. A door is provided on a fiber optic connector socket to block light leakage from the socket. The door is compact and does not interfere with neighboring devices while closed. The connector has a housing that centers the ferrule and keeps it in a position for precise alignment with the opposing ferrule. A pin retainer is designed to allow insertion and removal of alignment pins in the field without the need for removing the connector from the fiber optic, so that male connectors can be connected to female connectors and vice-versa.

Claims

1. A socket for receiving a fiber optic connector housing, said socket having forward and rearward directions, upward and downward directions transverse to the forward and rearward directions and lateral directions transverse to the other said directions, said socket defining a bore having an opening at the rearward end of the housing and extending forwardly into the housing, said housing having a panel mounting portion spaced forwardly from the rear end of the housing;

a door;

one or more hinges supporting said door on said housing for pivoting movement about an axis between a closed position in which said door blocks the opening of the bore and an open position in which said door does not block the opening, and a spring disposed outside of said housing, said door, said hinges and said spring having width and height dimensions equal to or smaller than the width and height dimensions of said panel mounting portion.

2. A socket as claimed in claim 1 wherein said axis is vertical and wherein housing defines a first indentation at the rearward end of the housing, and wherein said hinges include a top hinge disposed in said first indentation.

3. A socket as claimed in claim 2 wherein said housing defines a bottom surface at the rearward end of the housing, said bottom surface being recessed upwardly relative to the bottom surface of said panel engaging portion, and said hinges include a bottom hinge overlying said recessed bottom surface.

4. A socket as claimed in claim 3 wherein said door defines a bottom overhang which projects downwardly beyond said recessed bottom surface.

5. A socket as claimed in claim 2 wherein said first indentation is disposed on one lateral side of the housing and said housing defines a second indentation on the opposite lateral side, said door having an overhang portion which is aligned with said second indentation.

6. A socket as claimed in claim 5 wherein said housing defines a main bore and a keyway having width smaller than said main bore, said keyway being disposed between said indentations.

7. A socket as claimed in claim 1 wherein said door has a projection extending rearwardly on a side of said door remote from said hinges.

8. A socket as claimed in claim 1 wherein said housing has at least two resilient panel stops projecting outwardly from the housing in vertical directions, lateral directions or both vertical and lateral directions beyond the dimensions of said panel mounting portion, said panel stops being disposed rearwardly of said panel mounting portion, said panel stops inwardly deformable so that the housing can be advanced into a panel and said panel stops will deform inwardly to pass through an opening in a panel and return outwardly to hold the socket in the panel.

9. A socket as claimed in claim 8 further comprising mounting lugs projecting outwardly from the housing in vertical directions, lateral directions or both vertical and lateral directions beyond the dimensions of said panel mounting portion, said engagement projections being spaced forwardly of said panel stops so that a panel can be engaged between said engagement projections and said mounting lugs.

10. A socket as claimed in claim 8 wherein each said panel stop includes a portion of a lateral wall of the housing, each such lateral wall having a U-shaped slot bordering such portion of the wall so that each such wall portion forms a tongue connected to the remainder of the wall only at the rearward end of the tongue.