Multi-purpose sealing device

Patent metadata

Field	Value
Publication number	US-9864156-B1
Application number	US-201715609944-A
Country	US
Kind code	B1
Filing date	May 31, 2017
Priority date	Jul 1, 2016
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

A multi-purpose sealing device is described herein for use in a port structure of fiber terminal, telecommunication enclosure; or a bulkhead. The exemplary sealing device has a body having an open end and a closed end, wherein the closed end includes a removable portion and a pulling device to facilitate removal of the exemplary sealing device from a port structure. In one aspect, the exemplary sealing device is a single part made of a resilient material, while an alternative aspect, the exemplary sealing device includes a rigid connection portion disposed within the open end of the body. The exemplary device can be used as a dust cap or plug prior to making a service connection and/or it can be used as a port/cable sealing device after the service connection is made.

First claim

What is claimed is:

1. A multi-purpose sealing device for a port structure in a fiber terminal, enclosure or bulkhead, the sealing device comprising:
a body having an open end and a closed end, wherein the closed end includes a removable portion and a pulling device to facilitate removal of the exemplary sealing device from the exemplary sealing device from a port structure, and
a connection portion configured to secure the sealing device in the port structure.

2. The device of claim 1 , wherein the pulling device is a pulling loop.

3. The device of claim 1 , wherein the body and the connection portion is a single part made of a resilient material.

4. The device of claim 1 , wherein the connection portion is a rigid plastic part fitted into the open end of the body.

5. The device of claim 4 , wherein the body is overmolded onto at least a portion of the connection portion.

6. The device of claim 4 , wherein the body is formed of a resilient material.

7. The device of claim 6 , wherein the resilient material is one of acrylonitrile butadiene rubber, a silicone rubber and an ethylene propylene diene monomer rubber.

8. The device of claim 6 , wherein the resilient material has a Shore A hardness from about 30 to about 50.

9. The device of claim 1 , further comprising an inclined sealing face disposed between the body and the connection portion that is configured to seal against the port structure to provide an environmental seal.

10. A multi-purpose sealing system for a port structure in a fiber terminal, enclosure or bulkhead, the sealing device to enable plug and play service for fiber optic drop cable connections; the system comprising:
an optical fiber connector adapter;
a port adapter to secure the optical fiber connector adapter at least partially within the port structure and
a multi-purpose sealing device configured to environmentally seal the port structure before and after a service connection is made, wherein the multi-purpose sealing device comprises a body having an open end and a closed end, wherein the closed end includes a removable portion and a pulling device to facilitate removal of the sealing device from the port structure, and a connection portion configured to secure the sealing device in the port structure.

11. The system of claim 10 , wherein the body and the connection portion is a single part made of a resilient material.

12. The system of claim 11 , wherein the sealing device is secured in the port structure between an inside wall of the port structure and at least a portion of the port adapter.

13. The device of claim 10 , wherein the connection portion is a rigid plastic part fitted into the open end of the body.

14. The device of claim 13 , wherein the rigid connection portion has a collar and a pair of latch arms extending from the collar opposite the body of the sealing device, wherein each of the latch arms has an opening that engages with catches on the port adapter to secure the sealing device to the port adapter.

15. The device of claim 13 , wherein the body is a resilient material that is overmolded onto at least a portion of the connection portion.

16. The device of claim 11 , wherein the resilient material is one of acrylonitrile butadiene rubber, a silicone rubber and an ethylene propylene diene monomer rubber having a Shore A hardness from about 30 to about 50.

17. The device of claim 10 , further comprising an inclined sealing face disposed between the body and the connection portion that is configured to seal against the port structure to provide an environmental seal.

18. The device of claim 10 , wherein the optical fiber connector adapter is one of an LC-format optical fiber connector adapter, an SC-format optical fiber connector adapter and a MPO-format optical fiber connector adapter.

19. A method of making a service connection, comprising:
providing a fiber terminal having a plurality of ports, an optical fiber connector adapter disposed in at least one of the plurality of ports and a multi-purpose sealing device removably disposed in the at least one of the plurality of ports, wherein the sealing device has a body having an open end and a closed end, wherein the closed end includes a removable portion and a pulling loop;
extracting the sealing device by grabbing onto the pulling device and exerting an extraction force away from the fiber terminal;
tearing the removable portion away from the closed end of the sealing device to create an insertion opening;
inserting a non-ruggedized optical fiber connector through the insertion opening of the sealing device;
plugging the non-ruggedized optical fiber connector into the optical fiber connector adapter disposed within the at least one of the plurality of ports; and installing the sealing plug into one of the plurality of ports over the non-ruggedized optical fiber connector by inserting the open end of the sealing device into said port.

Assignees

• 3M Innovative Properties Co

Inventors

• Menguy Michel T

Classifications

• G02B6/245

  Removing protective coverings of light guides before coupling · CPC title

• G02B6/3893

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

• G02B6/3849

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

• G02B6/443 Primary

  Protective covering · CPC title

• G02B6/02395

  Glass optical fibre with a protective coating, e.g. two layer polymer coating deposited directly on a silica cladding surface during fibre manufacture (G02B6/02052, G02B6/02057, G02B6/024, G02B6/032, G02B6/105, G02B6/14 take precedence; coating on fibre gratings G02B6/02104; multilayer core or cladding G02B6/036; reinforcing splice joints G02B6/2558; optical cables, i.e. comprising protective structures external to the protective coating such as a jacket or plural coated optical fibres G02B6/44; coating of glass to obtain optical fibres C03C25/104) · CPC title