US5970749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for automated fabrication of fiber optic devices
Assignee: Individual
•
Filing: 1997-08-21
•
Granted: 1999-10-26
•
Expires: 2017-08-21
Abstract
Abstract Fiber optic devices are manufactured in an automated environment using a combination of clamps to secure the optical fibers and movable gripping devices that transport the optical fiber during the fabrication process while maintaining control of the ends of the optical fibers. An optical fiber from a spool is removed by a despooling arm having a gripping device, and moveable grippers thread the optical fiber into a set of clamps and place the end of the optical fiber in a clamp designed to splice the fiber optic end to a lead of a testing device. The fiber optic device is formed by dynamically controlling the heating and pulling process based on detected coupling ratios, and hermetically sealed while secured within the clamps. The sealed fiber optic device is moved for testing or packaging using a transport arm having a series of clamps to maintain the position of the fiber optic device and the ends of the leads of the fiber optic device.
Inventors
- 👤 Cary Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:13
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/3616; G02B6/362; G02B6/255; G02B6/2551; G02B6/26; G02B6/28; G02B6/2804; G02B6/2821; G02B6/2835; G02B6/3628; G02B6/3632; G02B6/3636; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3855; G02B6/3861; G02B6/3862; G02B6/3648; G02B6/3652; G02B6/3834; G02B6/3835; G02B6/3837; G02B6/42; G02B6/4201; G02B6/4248
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
265 words
A method of automating fabrication of a fiber optic device, comprising: securing an end of a first optical fiber into a stationary gripping device; transferring the end of the first optical fiber to one of a plurality of movable gripping devices; moving the end of the first optical fiber along a prescribed path using at least the one movable gripping device, the prescribed path coinciding with positions of at least one device to be threaded by the first optical fiber and primary clamps mounted on first and second stages, respectively; securing the first optical fiber to the two primary clamps; applying incident heat on the first optical fiber between the two primary clamps with a heat source; selectively moving the stages along an optical fiber axis to pull the heated first optical fiber at a pulling velocity; detecting at the end of the first optical fiber an optical characteristic of the first optical fiber; controlling the incident heat and the pulling velocity on the first optical fiber, based on a change in the detected optical characteristic, to form the fiber optic device; hermetically sealing the fiber optic device while maintaining a prescribed position of the end of the fiber optic device; securing the fiber optic device to a transport device relative to the end of the first optical fiber and a cut end of the first optical fiber; and moving the fiber optic device from the primary clamps and the movable gripping devices while maintaining a prescribed position of the end and the cut end of the fiber optic device relative to the transport device.
Claim 2
Independent Claim
265 words
A method of automating fabrication of a fiber optic device, comprising: securing an end of a first optical fiber into a stationary gripping device; transferring the end of the first optical fiber to one of a plurality of movable gripping devices; moving the end of the first optical fiber along a prescribed path using at least the one movable gripping device, the prescribed path coinciding with positions of at least one device to be threaded by the first optical fiber and primary clamps mounted on first and second stages, respectively; securing the first optical fiber to the two primary clamps; applying incident heat on the first optical fiber between the two primary clamps with a heat source; selectively moving the stages along an optical fiber axis to pull the heated first optical fiber at a pulling velocity; detecting at the end of the first optical fiber an optical characteristic of the first optical fiber; controlling the incident heat and the pulling velocity on the first optical fiber, based on a change in the detected optical characteristic, to form the fiber optic device; hermetically sealing the fiber optic device while maintaining a prescribed position of the end of the fiber optic device; securing the fiber optic device to a transport device relative to the end of the first optical fiber and a cut end of the first optical fiber; and moving the fiber optic device from the primary clamps and the movable gripping devices while maintaining a prescribed position of the end and the cut end of the fiber optic device relative to the transport device.
Claim 3
Dependent Claim
110 words
The method of claim 1, wherein the moving step comprises: moving the end of the first optical fiber along a first segment of said prescribed path using the one movable gripping device; handing off the end of the first optical fiber from the one movable gripping device to a first adjacent movable gripping device; moving the end of the first optical fiber along a second segment of said prescribed path and through the at least one device to be threaded using the adjacent movable gripping device; and handing off the end from the adjacent movable gripping to a second movable gripping device adjacent to the first adjacent movable gripping device.
Claim 4
Dependent Claim
87 words
The method of claim 1, wherein the first optical fiber is a coated optical fiber, the method further comprising: securing the coated first optical fiber to secondary clamps movably positioned on the first and second stages, respectively, the primary clamps on the first and second stages positioned between the corresponding secondary clamps; stripping the coated optical fiber to expose a segment of the optical fiber; and wherein the primary clamps securing step comprises securing the exposed segment of the first optical fiber to the two primary clamps.
Claim 5
Dependent Claim
139 words
The method of claim 3, further comprising: securing an end of a second coated optical fiber into a second stationary gripping device; transferring the end of the second coated optical fiber to one of a second plurality of movable gripping devices; moving the end of the second coated optical fiber along at least a portion of said prescribed path including said at least one device and said primary clamps; securing the second coated optical fiber to a second set of secondary clamps movably positioned on the first and second stages, respectively, the primary clamps on the first and second stages positioned between the corresponding second set of secondary clamps; stripping the second coated optical fiber to expose a segment of the second optical fiber; and securing the exposed segment of the second optical fiber to the two primary clamps.
Claim 6
Dependent Claim
80 words
The method of claim 1, wherein the primary clamps securing step comprises: placing an exposed portion of the first optical fiber within each of the primary clamps; imparting a suction force on the first optical fiber within each of the primary clamps; covering each of the primary clamps with a clamp housing having a segment for engagement with the exposed portion of the optical fiber; and imparting a second suction force on each clamp housing from the corresponding primary clamp.
Claim 7
Dependent Claim
130 words
The method of claim 1, further comprising: securing the first optical fiber to secondary clamps movably mounted on the first and second stages, the primary clamps positioned between the secondary clamps; releasing the first optical fiber from one of the secondary clamps; moving the threaded device along the first optical fiber and across the one released secondary clamp to a position between the released secondary clamp and the corresponding primary clamp; reclamping the first optical fiber in the released secondary clamp; releasing the first optical fiber from the primary clamp adjacent to the moved threaded device; moving the threaded device along the first optical fiber and across the one released primary clamp to a position between the primary clamps; and reclamping the first optical fiber in the released primary clamp.
References Cited (Backward Citations)
US33296A
Cited
US34955A
Cited
US3854003A
Cited
US4026632A
Cited
US4699453A
Cited
US5028110A
Cited
USRE33296E
Cited
US4611894A
Cited
US4701010A
Cited
US4597338A
Cited
US4763977A
Cited
US4779945A
Cited
WO1987000934A1
Cited
US4714316A
Cited
US4792203A
Cited
EP0215668A2
Cited
US4834481A
Cited
US4997243A
Cited
US4798438A
Cited
US4772085A
Cited
EP0293289A2
Cited
US4997247A
Cited
US4923273A
Cited
US4895423A
Cited
US4900119A
Cited
US5422969A
Cited
US5166992A
Cited
US4906068A
Cited
US5013117A
Cited
US4997252A
Cited
US4997248A
Cited
US4997253A
Cited
US5013121A
Cited
US4995688A
Cited
US5316243A
Cited
US5067678A
Cited
USRE34955E
Cited
GB2235043A
Cited
US4997245A
Cited
US5123219A
Cited
US5031994A
Cited
US5037176A
Cited
US5093885A
Cited
US5179618A
Cited
US5208894A
Cited
US5066149A
Cited
US5179608A
Cited
US5395101A
Cited
US5159655A
Cited
US5239604A
Cited
US5166994A
Cited
US5136121A
Cited
US5222176A
Cited
US5329600A
Cited
US5121453A
Cited
US5602952A
Cited
US5293582A
Cited
US5319733A
Cited
US5588087A
Cited
US5214732A
Cited
US5261019A
Cited
US5189723A
Cited
US5157751A
Cited
US5459598A
Cited
US5367591A
Cited
US5386484A
Cited
US5251002A
Cited
US5386488A
Cited
US5214735A
Cited
US5283852A
Cited
US5355426A
Cited
US5293440A
Cited
US5274731A
Cited
US5445319A
Cited
US5432875A
Cited
US5363465A
Cited
US5305405A
Cited
US5475784A
Cited
US5317663A
Cited
US5319728A
Cited
US5475780A
Cited
US5386490A
Cited
US5343544A
Cited
US5381497A
Cited
US5497444A
Cited
US5463704A
Cited
US5475782A
Cited
US5577149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-25 | 2003-04-26 | 2003-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-25 | 2007-04-26 | 2007-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-25 | 2011-04-26 | 2011-10-26 | $7700.00 | Window Closed / Lapsed |