US4729628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optic dropwire
Assignee: Corning Research and Development Corp
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Filing: 1986-11-14
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Granted: 1988-03-08
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Expires: 2006-11-14
Abstract
Abstract A fiber optic dropwire having a fiber optic transmission member between two strength members. The optical fiber has an outer coating having a higher melting point than the outer dropwire covering.
Inventors
- 👤 Heinrich A. Kraft
- 👤 David E. Vokey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:28
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/4401; G02B6/4403; G02B6/4415; G02B6/4416; G02B6/4422; G02B6/4426; G02B6/4429; G02B6/443; G02B6/4431
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
103 words
A communication cable comprising: (a) an optical fiber having inner and outer coatings, the outer coating having a first melting point, said optical fiber disposed between two longitudinally extended strength members; and (b) an outer plastic jacket having a second melting point disposed around said coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 2
Dependent Claim
103 words
A communication cable comprising: (a) an optical fiber having inner and outer coatings, the outer coating having a first melting point, said optical fiber disposed between two longitudinally extended strength members; and (b) an outer plastic jacket having a second melting point disposed around said coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 3
Dependent Claim
39 words
A communication cable as recited in claim 1, wherein the inner coating on the optical fiber is nylon and the outer coating on the optical fiber is polyester, and the two longitudinally extended strength members are copper coated steel.
Claim 4
Dependent Claim
31 words
A communication cable as recited in claim 2 wherein the outer plastic jacket is polyvinyl chloride and the two longitudinally extended strength members are adherently embedded in the outer plastic jacket.
Claim 5
Dependent Claim
128 words
A communication cable comprising: (a) an optical fiber loosely disposed within inner and outer coatings, the outer coating having a first melting point, the inner coating delimiting a space; said space within the inner coating not occupied by an optical fiber being filled with a gel, and the optical fiber lying between two elongated strength members; and (b) an outer plastic jacket having a second melting point disposed around the coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 6
Dependent Claim
128 words
A communication cable comprising: (a) an optical fiber loosely disposed within inner and outer coatings, the outer coating having a first melting point, the inner coating delimiting a space; said space within the inner coating not occupied by an optical fiber being filled with a gel, and the optical fiber lying between two elongated strength members; and (b) an outer plastic jacket having a second melting point disposed around the coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 7
Dependent Claim
39 words
A communication cable as recited in claim 4, wherein the inner coating on the optical fiber is nylon and the outer coating on the optical fiber is polyester, and the two longitudinally extended strength members are copper coated steel.
Claim 8
Dependent Claim
31 words
A communication cable as recited in claim 5, wherein the outer plastic jacket is polyvinyl chloride and the two longitudinally extended strength members are adherently embedded in the outer plastic jacket.
Claim 9
Dependent Claim
21 words
A communication cable as recited in claim 6, further comprising a second optical fiber disposed within the inner and outer coatings.
Claim 10
Dependent Claim
92 words
A communication cable comprising two optical fibers, each having inner and outer coatings, the outer coatings having a first melting point, disposed between two longitudinally extended strength members, the coated optical fibers and strength members disposed in an outer plastic jacket, the outer plastic jacket having a second melting point, wherein the first melting point is higher than the second melting point, the inner coating on the fibers is nylon and the outer coating on the optical fibers is polyester, and the strength members are adherently embedded in the outer plastic jacket.
Claim 11
Dependent Claim
92 words
A communication cable comprising two optical fibers, each having inner and outer coatings, the outer coatings having a first melting point, disposed between two longitudinally extended strength members, the coated optical fibers and strength members disposed in an outer plastic jacket, the outer plastic jacket having a second melting point, wherein the first melting point is higher than the second melting point, the inner coating on the fibers is nylon and the outer coating on the optical fibers is polyester, and the strength members are adherently embedded in the outer plastic jacket.
Claim 12
Dependent Claim
101 words
A communication cable comprising: (a) an optical fiber having a coating thereon, said coating having a first melting point, said optical fiber disposed between two longitudinally extended strength members; and (b) an outer plastic jacket having a second melting point disposed around said coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 13
Dependent Claim
101 words
A communication cable comprising: (a) an optical fiber having a coating thereon, said coating having a first melting point, said optical fiber disposed between two longitudinally extended strength members; and (b) an outer plastic jacket having a second melting point disposed around said coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 14
Dependent Claim
122 words
A communication cable comprising: (a) a first optical fiber loosely disposed within a coating having a first melting point, said coating delimiting a space; said space within the coating not occupied by an optical fiber being filled with a gel, and the optical fiber lying between two elongated strength members; and (b) an outer plastic jacket having a second melting point disposed around the coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 15
Dependent Claim
122 words
A communication cable comprising: (a) a first optical fiber loosely disposed within a coating having a first melting point, said coating delimiting a space; said space within the coating not occupied by an optical fiber being filled with a gel, and the optical fiber lying between two elongated strength members; and (b) an outer plastic jacket having a second melting point disposed around the coated optical fiber and said strength members, wherein the first melting point is higher than the second melting point; and said outer plastic jacket having two longitudinally extended grooves on opposite sides of the coated optical fiber in the plane containing the optical fiber and perpendicular to the plane containing the optical fiber and the two strength members.
Claim 16
Dependent Claim
84 words
A communication cable comprising an optical fiber having inner and outer coatings, the outer optical fiber coating having a first melting point, the optical fiber disposed between two longitudinally extended strength members, the coated optical fiber and strength members disposed in an outer plastic jacket having a second melting point, the first melting point being higher than the second melting point, the inner coating being nylon and the outer coating being polyester, and the strength members being adherently embedded in the outer plastic jacket.
Claim 17
Dependent Claim
84 words
A communication cable comprising an optical fiber having inner and outer coatings, the outer optical fiber coating having a first melting point, the optical fiber disposed between two longitudinally extended strength members, the coated optical fiber and strength members disposed in an outer plastic jacket having a second melting point, the first melting point being higher than the second melting point, the inner coating being nylon and the outer coating being polyester, and the strength members being adherently embedded in the outer plastic jacket.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-08 | 1991-09-07 | 1992-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-08 | 1995-09-07 | 1996-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-08 | 1999-09-07 | 2000-03-08 | $7700.00 | Window Closed / Lapsed |