US4059893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coaxial cable cutting tool
Assignee: Individual
•
Filing: 1976-07-19
•
Granted: 1977-11-29
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Expires: 1996-07-19
Abstract
Abstract A rotatable tool for cutting and stripping insulation from coaxial cable to expose the conductors of the cable for attachment to a connector, comprises a housing containing spaced grooves extending transversely across the axis of rotation of the tool, each of the grooves containing a pair of opposed cutter blades. A central bore is provided coaxial with the axis of rotation through which a length of cable to be cut and stripped is inserted. Springs are provided for urging the cutting edges of the blades apart so that the cable can be passed between them without being cut. A race at the exterior of the housing is slidable back and forth in the axial direction and normally held in a neutral position by the spring action. When the race is moved axially in one direction, it functions to push one set of cutter blades toward each other to make a first cut which results in exposing a short length at the end of the central conductor and when the race is pushed in the other direction, it makes a second cut which cuts through the outer insulation and the outer conductor to the outer surface of the inner insulation. The part of the cable between each cut and the end of the cable can then be stripped off so that a conventional connector can be attached.
Inventors
- 👤 Thomas F. Solury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:47
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/12; H02G1/1202; H02G1/1248; H02G1/1265
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
312 words
A tool for cutting material from cable of the type having a central conductor concentrically within insulation material, said tool comprising: a rotatable housing having an axis of rotation and having a bore extending along said axis from one end of the housing at least part way through the housing toward its other end, into which there may be inserted a length of the cable, and having a peripheral wall between the ends; a first groove means and a second groove means each extending through the housing in a direction transverse to said axis and opening into the bore; spacing means between the first and second groove means separating the first and second groove means axially from each other; first cutter means slidable in said first groove means and second cutter means slidable in said second groove means, each of said cutter means containing cutting edge means positioned so that each cutting edge means may be moved from a normal position away from the bore to a position within the bore where it can cut into a cable within the bore; means urging each of said cutter means to slide in the direction which maintains its cutting edge means away from the bore; movable means attached to the housing adapted to separately slide each of said cutter means against the force of said urging means so that its cutting edge means moves into the bore to cut into material of the cable when the housing is rotated relative to the cable; and means on the housing limiting the movement into the bore of the cutting edge means of each cutter means; whereby when the housing is rotated relative to a length of cable inserted in the bore there are made two axially separated peripheral cuts through the wall of the cable, the depth of each cut being established by the limiting means.
Claim 2
Dependent Claim
312 words
A tool for cutting material from cable of the type having a central conductor concentrically within insulation material, said tool comprising: a rotatable housing having an axis of rotation and having a bore extending along said axis from one end of the housing at least part way through the housing toward its other end, into which there may be inserted a length of the cable, and having a peripheral wall between the ends; a first groove means and a second groove means each extending through the housing in a direction transverse to said axis and opening into the bore; spacing means between the first and second groove means separating the first and second groove means axially from each other; first cutter means slidable in said first groove means and second cutter means slidable in said second groove means, each of said cutter means containing cutting edge means positioned so that each cutting edge means may be moved from a normal position away from the bore to a position within the bore where it can cut into a cable within the bore; means urging each of said cutter means to slide in the direction which maintains its cutting edge means away from the bore; movable means attached to the housing adapted to separately slide each of said cutter means against the force of said urging means so that its cutting edge means moves into the bore to cut into material of the cable when the housing is rotated relative to the cable; and means on the housing limiting the movement into the bore of the cutting edge means of each cutter means; whereby when the housing is rotated relative to a length of cable inserted in the bore there are made two axially separated peripheral cuts through the wall of the cable, the depth of each cut being established by the limiting means.
Claim 3
Dependent Claim
28 words
A tool according to claim 1 in which said movable means adapted to separately slide each of said cutter means comprises a movable race outside said housing periphery.
Claim 4
Dependent Claim
45 words
A tool according to claim 2 in which each cutter means protrudes outside the periphery of the housing where it comes into contact with the race, and said race contains means for sliding the respective cutter means toward the bore when the race is moved.
Claim 5
Dependent Claim
21 words
A tool according to claim 1 in which the first and second groove means are at an angle to each other.
Claim 6
Dependent Claim
12 words
A tool according to claim 4 in which the angle is 90°.
Claim 7
Dependent Claim
20 words
A tool according to claim 1 in which each cutter means comprises two opposed cutters in the respective groove means.
Claim 8
Dependent Claim
14 words
A tool according to claim 1 in which the urging means comprises spring means.
Claim 9
Dependent Claim
29 words
A tool according to claim 2 in which the means limiting the movement of each cutting edge means comprises stop means in the path of movement of the race.
Claim 10
Dependent Claim
69 words
A tool according to claim 8 in which the race is movable axially in either direction from a neutral position, and said race contains a surface which slides the first cutter means in the first groove means when the race is moved in one direction and contains another surface which slides the second cutter means in the second groove means when the race is moved in the other direction.
Claim 11
Dependent Claim
26 words
A tool according to claim 9 in which the stop means comprises a stop at the exterior of the housing at each side of the race.
Claim 12
Dependent Claim
30 words
A tool according to claim 6 in which each cutter contains a groove with an arcuate shoulder to accommodate material of the cable while the cutter is making a cut.
Claim 13
Dependent Claim
24 words
A tool according to claim 1 in which the housing comprises two bodies and the spacing means comprises a spacer between the two bodies.
Claim 14
Dependent Claim
23 words
A tool according to claim 12 in which the opposite sides of the spacer form walls of the first and second groove means.
Claim 15
Dependent Claim
44 words
A tool according to claim 13 in which the spacer contains slots and the means urging the respective cutter means to slide comprise coiled springs an end of each of which extends through a respective cutter means into a respective one of the slots.
Claim 16
Dependent Claim
31 words
A tool according to claim 14 in which the housing contains slots at opposite sides of the spacer and each spring is placed in a respective one of the last-mentioned slots.
Claim 17
Dependent Claim
53 words
A tool according to claim 1 in which said limiting means is positioned relative to the respective cutting edge means to allow one of the cutting edge means to move closer to said axis than the other cutting edge means so that one of the cuts can be made deeper than the other.
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) | 1980-11-28 | 1981-05-30 | 1981-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-28 | 1985-05-30 | 1985-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-28 | 1989-05-30 | 1989-11-29 | $7700.00 | Window Closed / Lapsed |