US5414790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Actuation tool and cap for fiber optic connector
Assignee: 3M Co
•
Filing: 1993-11-09
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Granted: 1995-05-09
•
Expires: 2013-11-09
Abstract
Abstract A combination dust cap and actuation tool for an optical fiber connector having a ferrule and an actuation mechanism for securing a fiber in the connector. The cap/tool has a body with a cylindrical extension having a cavity therein for receiving the ferrule, and a cantilever arm formed on the body, extending parallel with the extension. The cantilever arm has a boss at its distal end for forcibly contacting the actuation mechanism of the connector as the arm is moved in a direction perpendicular to the fiber axis. In this manner, the fiber may be secured to the connector without disturbing the position of the fiber. The cavity has a bottom surface which may have a depression centrally located therein, so that a fiber may be secured in the connector with the terminal end of the fiber extending a known length beyond the ferrule.
Inventors
- 👤 Nicholas A. Lee
- 👤 Michael A. Meis
- 👤 Theodore J. Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:29
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3855; G02B6/3858; G02B6/3847; G02B6/3849; G02B6/3898
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
68 words
A device for securing an optical fiber in a connector having a fiber gripping actuation member, the device comprising: a body having a cavity therein for receiving a forward end of the connector; and means attached to said body for forcibly contacting the actuation member of the connector, said contacting means exerting a force which is generally perpendicular to an axis of a fiber retained in the connector.
Claim 2
Independent Claim
68 words
A device for securing an optical fiber in a connector having a fiber gripping actuation member, the device comprising: a body having a cavity therein for receiving a forward end of the connector; and means attached to said body for forcibly contacting the actuation member of the connector, said contacting means exerting a force which is generally perpendicular to an axis of a fiber retained in the connector.
Claim 3
Dependent Claim
17 words
The device of claim 1 wherein said contacting means includes an arm member attached to said body.
Claim 4
Dependent Claim
41 words
The device of claim 1 wherein: the connector has a generally cylindrical ferrule member at the forward end thereof; and said cavity has a generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the ferrule member.
Claim 5
Dependent Claim
80 words
The device of claim 1 wherein: the connector has a generally cylindrical ferrule member at the forward end thereof, and a generally tubular housing member surrounding the ferrule member; said cavity is formed in a generally cylindrical extension of said body, said extension having an outer diameter which is approximately equal to an inner diameter of the housing; and said cavity has a generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the ferrule member.
Claim 6
Dependent Claim
23 words
The device of claim 1 wherein said body includes latch means for releasably securing the forward end of the connector in said cavity.
Claim 7
Dependent Claim
23 words
The device of claim 1 wherein said body has a slot therein proximate said cavity for receiving a keying pin on the connector.
Claim 8
Dependent Claim
39 words
The device of claim 2 wherein: said arm member is a cantilever integrally formed with said body; said cantilever has a distal end; and said contacting means further includes a boss formed near said distal end of said cantilever.
Claim 9
Dependent Claim
32 words
The device of claim 2 wherein said body has a slot therein proximate said cavity for receiving a keying pin on the connector, said slot being generally aligned with said arm member.
Claim 10
Dependent Claim
32 words
The device of claim 3 wherein said body further includes registration means for precisely positioning a terminal end of an optical fiber with respect to an end face of the ferrule member.
Claim 11
Dependent Claim
13 words
The device of claim 7 wherein said boss has a generally rounded surface.
Claim 12
Dependent Claim
32 words
The device of claim 9 wherein said registration means comprises a depression formed in a bottom surface of said cavity, said depression being generally located at a center of said bottom surface.
Claim 13
Independent Claim
115 words
A device for positioning an optical fiber in a connector having a ferrule member located at a forward end of the connector, an actuation element and a fiber gripping element which moves from an unactuated state to an actuated state upon movement of the actuation element, the device comprising: a body having a cavity therein for receiving the forward end of the connector; means for releasably securing the forward end of the connector in said cavity; and registration means formed in said body for precisely positioning a terminal end of an optical fiber with respect to the forward end of the connector, outside of the connector and proximate an end face of the ferrule member.
Claim 14
Independent Claim
115 words
A device for positioning an optical fiber in a connector having a ferrule member located at a forward end of the connector, an actuation element and a fiber gripping element which moves from an unactuated state to an actuated state upon movement of the actuation element, the device comprising: a body having a cavity therein for receiving the forward end of the connector; means for releasably securing the forward end of the connector in said cavity; and registration means formed in said body for precisely positioning a terminal end of an optical fiber with respect to the forward end of the connector, outside of the connector and proximate an end face of the ferrule member.
Claim 15
Dependent Claim
34 words
The device of claim 12 wherein: the ferrule member is generally cylindrical; and said cavity has a generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the ferrule member.
Claim 16
Dependent Claim
44 words
The device of claim 12 further comprising arm means attached to said body for forcibly contacting the actuation element of the connector, said arm means being movable in a direction which is generally perpendicular to an axis of a fiber retained in the connector.
Claim 17
Dependent Claim
109 words
The device of claim 12 wherein: the ferrule member is generally cylindrical, and the connector further has a collar member attached to the ferrule member, and a generally tubular housing member surrounding the ferrule member and collar member; said collar member has an alignment pin formed thereon; said cavity is formed in a generally cylindrical extension of said body, said extension having an outer diameter which is approximately equal to an inner diameter of the housing, and further having a slot therein for receiving the alignment pin; and said cavity has a generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the ferrule member.
Claim 18
Dependent Claim
19 words
The device of claim 12 wherein said securing means comprises a pair of latch arms attached to said body.
Claim 19
Dependent Claim
32 words
The device of claim 13 wherein said registration means comprises a depression formed in a bottom surface of said cavity, said depression being generally located at a center of said bottom surface.
Claim 20
Dependent Claim
96 words
A combined dust cap and actuation tool for an adhesiveless connector having a ferrule, the cap/tool comprising: a body having a generally cylindrical extension, and having a cavity formed in said extension for receiving the ferrule; a cantilever arm integrally formed with said body, said arm extending in a direction generally parallel with said extension, said arm having a distal end and a boss formed near said distal end; means for releasably securing the ferrule in said cavity; and registration means for precisely positioning a terminal end of an optical fiber with respect to the ferrule.
Claim 21
Dependent Claim
96 words
A combined dust cap and actuation tool for an adhesiveless connector having a ferrule, the cap/tool comprising: a body having a generally cylindrical extension, and having a cavity formed in said extension for receiving the ferrule; a cantilever arm integrally formed with said body, said arm extending in a direction generally parallel with said extension, said arm having a distal end and a boss formed near said distal end; means for releasably securing the ferrule in said cavity; and registration means for precisely positioning a terminal end of an optical fiber with respect to the ferrule.
Claim 22
Dependent Claim
35 words
The cap/tool of claim 18 wherein said securing means comprises a pair of latch arms attached to said body on opposite sides of said extension, and extending in a direction generally parallel with said extension.
Claim 23
Dependent Claim
110 words
The cap/tool of claim 18 wherein: the ferrule is generally cylindrical; the connector further has a generally cylindrical collar attached to the ferrule, and a generally tubular housing surrounding the ferrule and collar; said collar has an alignment pin formed thereon; said extension has an outer diameter which is approximately equal to an inner diameter of the housing, and further has a slot therein for receiving the alignment pin; and said cavity has a first generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the ferrule, and a second generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the collar.
Claim 24
Independent Claim
190 words
A device for positioning an optical fiber in a connector having a generally cylindrical ferrule member at forward end thereof, a collar member attached to the ferrule member, a generally tubular housing member surrounding the ferrule member and collar member, an actuation element and a fiber gripping element which moves from an unactuated state to an actuated state upon movement of the actuation element, the device comprising: a body having a cavity therein for receiving the forward end of the connector, said cavity being formed in a generally cylindrical extension of said body and having a generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the ferrule member, and said extension having an outer diameter which is approximately equal to an inner diameter of the connector housing, and further having a slot therein for receiving an alignment pin formed on the collar member of the connector; means for releasably securing the forward end of the connector in said cavity; and registration means formed in said body for precisely positioning a terminal end of an optical fiber with respect to the forward end of the connector.
Claim 25
Independent Claim
190 words
A device for positioning an optical fiber in a connector having a generally cylindrical ferrule member at forward end thereof, a collar member attached to the ferrule member, a generally tubular housing member surrounding the ferrule member and collar member, an actuation element and a fiber gripping element which moves from an unactuated state to an actuated state upon movement of the actuation element, the device comprising: a body having a cavity therein for receiving the forward end of the connector, said cavity being formed in a generally cylindrical extension of said body and having a generally cylindrical portion whose inner diameter is approximately equal to an outer diameter of the ferrule member, and said extension having an outer diameter which is approximately equal to an inner diameter of the connector housing, and further having a slot therein for receiving an alignment pin formed on the collar member of the connector; means for releasably securing the forward end of the connector in said cavity; and registration means formed in said body for precisely positioning a terminal end of an optical fiber with respect to the forward end of the connector.
Claim 26
Independent Claim
101 words
A device for positioning an optical fiber in a connector having an actuation element and a fiber gripping element which moves from an unactuated state to an actuated state upon movement of the actuation element, the device comprising: a body having a cavity therein for receiving a forward end of the connector; means for releasably securing the forward end of the connector in said cavity, including a pair of latch arms attached to said body; and registration means formed in said body for precisely positioning a terminal end of an optical fiber with respect to the forward end of the connector.
Claim 27
Independent Claim
101 words
A device for positioning an optical fiber in a connector having an actuation element and a fiber gripping element which moves from an unactuated state to an actuated state upon movement of the actuation element, the device comprising: a body having a cavity therein for receiving a forward end of the connector; means for releasably securing the forward end of the connector in said cavity, including a pair of latch arms attached to said body; and registration means formed in said body for precisely positioning a terminal end of an optical fiber with respect to the forward end of the connector.
References Cited (Backward Citations)
US4865412A
Cited
US5044721A
Cited
US5088804A
Cited
US4986626A
Cited
US4979792A
Cited
US5102211A
Cited
US5208887A
Cited
US5113474A
Cited
US5040867A
Cited
EP0486189A2
Cited
US5131063A
Cited
US5080460A
Cited
US5140662A
Cited
US5142598A
Cited
US5146525A
Cited
US5241613A
Cited
US5216734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-08 | 1998-11-07 | 1999-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-08 | 2002-11-07 | 2003-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-08 | 2006-11-07 | 2007-05-09 | $7700.00 | Window Closed / Lapsed |