IP Library Granted Patent US 12,287,516
Granted Patent B2
US 12,287,516 · App. 18/616,912 · Granted Apr 29, 2025

Dustcap with built-in cleaner

Inventors: Cheryl Johnson Beranek (Minnetonka, MN); John P. Hill (Oak Grove, MN); William J. Cruzen (Monticello, MN); James John Henschel (Chula Vista, CA)
Assignee: Clearfield, Inc.
G02B6/3866G02B6/3849G02B6/3882
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Quick Facts
Patent No.
US 12,287,516
App. No.
18/616,912
Granted
Apr 29, 2025
Kind
B2
Abstract

A dustcap comprises a body having a cylindrical portion configured to receive a ferrule of an optical fiber connector, and an end portion opposite the cylindrical portion. The end portion includes a receptacle. The dustcap has a built-in cleaner disposed within the receptacle. The dustcap further comprises a removable cover configured to couple to the end portion of the dustcap. In another embodiment, the end portion includes a flat surface, the cleaner is disposed on the flat surface of the end portion, and the cover is configured to receive the end portion of the dustcap. In another embodiment, the cover has a receptacle and the cleaner is disposed within the receptacle, whereas the body comprises an end portion configured to receive at least a portion of the cover with the built-in cleaner. Embodiments encompass cleaner assemblies and adapter dustcaps having built-in cleaners.

Claims (20)

1. An adapter dustcap configured to receive a ferrule of an optical fiber connector, the adapter dustcap comprising:

a body, comprising:

a base portion; and

a receptacle;

a cleaner disposed within the receptacle; and

a removeable sealing film configured to cover the cleaner and the receptacle without touching the ferrule.

2. The adapter dustcap of claim 1 , wherein the removable sealing film extends beyond the top portion of the body to facilitate removal of the removable sealing film from the adapter dustcap.

3. The adapter dustcap of claim 2 , wherein the removable sealing film is shaped as an oval or rectangle.

4. The adapter dustcap of claim 1 , wherein the receptacle is configured to receive the cleaner, and wherein the receptacle is characterized by a depth that exceeds a corresponding length of the cleaner such that space remains above the cleaner within the receptacle.

5. The adapter dustcap of claim 1 , wherein the receptacle is configured to receive the cleaner, and wherein the receptacle is characterized by a depth matched to a corresponding length of the cleaner.

6. The adapter dustcap of claim 1 , wherein the receptacle is configured to receive the cleaner, and wherein the receptacle is characterized by a depth less than a corresponding length of the cleaner such that the cleaner extends beyond a top portion of the base.

7. The adapter dustcap of claim 1 , wherein the cleaner is secured to at least a portion of the receptacle.

8. A method for manufacturing an adapter dustcap configured to receive a ferrule of an optical fiber connector, the method comprising:

providing a body, the body comprising:

a base portion; and

a receptacle;

disposing a cleaner within the receptacle; and

covering an end portion of the body with a removable sealing film, wherein the removable sealing film is configured to cover the cleaner and the receptacle without touching the ferrule.

9. The method of claim 8 , wherein the removable sealing film extends beyond the top portion of the body to facilitate removal of the removable sealing film from the adapter dustcap.

10. The method of claim 8 , wherein the receptacle is configured to receive the cleaner, and wherein the receptacle is characterized by a depth that exceeds a corresponding length of the cleaner such that space remains above the cleaner within the receptacle.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 31, 2024
From: BERANEK, CHERYL JOHNSON; HILL, JOHN P.; CRUZEN, WILLIAM J.; HENSCHEL, JAMES JOHN
To: CLEARFIELD, INC.
Reel/Frame 069090/0307 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2024
From: BERANEK, CHERYL JOHNSON; HILL, JOHN P.; CRUZEN, WILLIAM J.; HENSCHEL, JAMES JOHN
To: CLEARFIELD, INC.
Reel/Frame 068677/0819 →
Continuity (4)
Continuation 18299139 · Apr 12, 2023
Continuation 17816613 · Aug 1, 2022
Continuation 17028083 · Sep 22, 2020
Related Publication 20240272373A1 · Aug 15, 2024
References Cited (30)
US 1459589A · Hoffman · 1923 [cited by applicant]
US 6398422B1 · Szilagyi et al. · 2002 [cited by applicant]
US 6810552B2 · Miyake et al. · 2004 [cited by applicant]
US D623369S · Sugita et al. · 2010 [cited by applicant]
US 8041177B2 · Zimmel et al. · 2011 [cited by applicant]
US 10481342B1 · Yang et al. · 2019 [cited by applicant]
US 10739531B2 · Takanashi et al. · 2020 [cited by applicant]
US 11422314B2 · Beranek et al. · 2022 [cited by applicant]
US 11675139B2 · Beranek et al. · 2023 [cited by applicant]
US 11796742B1 · Zhang · 2023 [cited by examiner]
US 12007609B2 · Beranek · 2024 [cited by examiner]
US 20020166190A1 · Miyake et al. · 2002 [cited by applicant]
US 20050220434A1 · Hsieh · 2005 [cited by applicant]
US 20100302530A1 · Liu et al. · 2010 [cited by applicant]
US 20110047731A1 · Sugita et al. · 2011 [cited by applicant]
US 20110229088A1 · Isenhour et al. · 2011 [cited by applicant]
US 20160259131A1 · Erdman et al. · 2016 [cited by applicant]
US 20160349459A1 · Collier et al. · 2016 [cited by applicant]
US 20170254963A1 · Sparrowhawk et al. · 2017 [cited by applicant]
US 20180120515A1 · Samal et al. · 2018 [cited by applicant]
US 20190346630A1 · Yang et al. · 2019 [cited by applicant]
JP 2010117443A · 2010 [cited by applicant]
JP 2019200411A · 2019 [cited by applicant]
WO 2012112343A1 · 2012 [cited by applicant]
WO 2015017170A1 · 2015 [cited by applicant]
WO 2018199331A1 · 2018 [cited by applicant]
European Examination Report dated Aug. 23, 2024 issued in European Application No. 21873256.8. [cited by applicant]
International Search Report and Written Opinion dated Aug. 13, 2021 from related International Application No. PCT/US2021/029852, International Filing Date Apr. 29, 2021. [cited by applicant]
International Search Report and Written Opinion dated Dec. 23, 2021 from related International Application No. PCT/US2021/051118, International Filing Date Sep. 20, 2021. [cited by applicant]
European Examination Report dated Sep. 10, 2024 issued in European Application No. 21873112.3. [cited by applicant]