US3625623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for boring radial holes in a coaxial cable
Assignee: RJ Communication Products Inc
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Filing: 1970-02-27
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Granted: 1971-12-07
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Expires: 1990-02-27
Abstract
Abstract Certain types of couplers utilized in tapping a coaxial cable intermediate along its length require boring a plurality of radial holes in the coaxial cable to closely regulated predetermined depths and without shorting the inner and outer conductors. Tool apparatus for boring such holes is provided and consists of a tool block having a cable-receiving channel disposed across one of its surfaces and a clamp member for securing a coaxial cable in the channel. A plurality of threaded apertures extend from the bottom of the channel through the tool block to the opposite surface. A hollow tubular tool holder is threaded along a portion of its length and provided with a stop shoulder adjacent the thread termination such that it may be introduced into the threaded apertures and screwed down until the shoulder abuts the tool block surface. A hollow cylindrical tool provided with peripheral teeth at one end is secured within the tool holder in a predetermined position such that, when the tool holder is screwed home, a circular cut of the desired depth is directed radially in the coaxial cable. Where a cut through the inner conductor is required, the surface of the tool block against which the tool holder shoulder abuts is undercut to the desired extent to permit the necessary deeper cut. Subsequently, a second nonthreaded tool holder, used in conjunction with a modified drill bit, is introduced into the tool block apertures after the circular cut has been made and twisted to remove the core.
Inventors
- 👤 William A Rheinfelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:17
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/02; B23B47/00; B23B47/28; B23B47/281; B23B51/04; B23B2247/00; B23B2247/12; B23B2251/00; B23B2251/14; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T408/56245; Y10T408/5626; Y10T408/5627; Y10T408/56275; Y10T408/5628
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
351 words
Apparatus for boring and clearing holes to a predetermined depth in a coaxial cable, comprising: a. a tool block, said tool block being provided with a first channel extending across the full length of a first one of its surfaces, said first channel configured to substantially conform to a portion of the outer surface of a coaxial cable, a clamp member adapted for use with said tool block, said clamp member having a second channel disposed in parallel with and superimposed over said first channel, means for tightening said clamp member against said tool block, said first and second channels cooperating to form a passageway substantially conforming to the outer surface of a coaxial cable such that a second of coaxial cable disposed in said passageway is securely held when said clamp member is tightened against said block, a tool guide aperture extending through said tool block, said tool guide aperture disposed perpendicular to said first channel and said first surface, said tool guide aperture being threaded along at least a portion of its length; b. a tool holder, said tool holder comprising a coaxially bored tubular structure having a threaded portion along its outer surface for threaded engagement with said tool guide aperture, the coaxial bore through said tool holder including first and second portions with corresponding first and second diameters, said first diameter being larger than said second diameter, a step transition between said first diameter and said second diameter providing an internal shoulder, circumferential external shoulder means on the periphery of said tool holder adjacent the terminus of said threaded portion for limiting the distance through which said tool holder may be threaded into said tool guide aperture; and c. a tubular cutting tool adapted to be inserted into and fixed in said tool holder, a first end of said cutting tool configured in a plurality of longitudinally directed sawteeth arranged in a circular pattern, a second end of said cutting tool dimensioned to seat against said internal shoulder in said first tool holder to define the relative longitudinal relationship between said tool holder and said cutting tool.
Claim 2
Dependent Claim
351 words
Apparatus for boring and clearing holes to a predetermined depth in a coaxial cable, comprising: a. a tool block, said tool block being provided with a first channel extending across the full length of a first one of its surfaces, said first channel configured to substantially conform to a portion of the outer surface of a coaxial cable, a clamp member adapted for use with said tool block, said clamp member having a second channel disposed in parallel with and superimposed over said first channel, means for tightening said clamp member against said tool block, said first and second channels cooperating to form a passageway substantially conforming to the outer surface of a coaxial cable such that a second of coaxial cable disposed in said passageway is securely held when said clamp member is tightened against said block, a tool guide aperture extending through said tool block, said tool guide aperture disposed perpendicular to said first channel and said first surface, said tool guide aperture being threaded along at least a portion of its length; b. a tool holder, said tool holder comprising a coaxially bored tubular structure having a threaded portion along its outer surface for threaded engagement with said tool guide aperture, the coaxial bore through said tool holder including first and second portions with corresponding first and second diameters, said first diameter being larger than said second diameter, a step transition between said first diameter and said second diameter providing an internal shoulder, circumferential external shoulder means on the periphery of said tool holder adjacent the terminus of said threaded portion for limiting the distance through which said tool holder may be threaded into said tool guide aperture; and c. a tubular cutting tool adapted to be inserted into and fixed in said tool holder, a first end of said cutting tool configured in a plurality of longitudinally directed sawteeth arranged in a circular pattern, a second end of said cutting tool dimensioned to seat against said internal shoulder in said first tool holder to define the relative longitudinal relationship between said tool holder and said cutting tool.
Claim 3
Dependent Claim
386 words
Apparatus for boring and clearing holes to a predetermined depth in a coaxial cable, comprising: a. a tool block, said tool block being provided with a first channel extending across the full length of a first one of its surfaces, said first channel configured to substantially conform to a portion of the outer surface of a coaxial cable, a clamp member adapted for use with said tool block, said clamp member having a second channel disposed in parallel with and superimposed over said first channel, means for tightening said clamp member against said tool block, said first and second channels cooperating to form a passageway substantially conforming to the outer surface of a coaxial cable such that a second of coaxial cable disposed in said passageway is securely held when said clamp member is tightened against said block, a plurality of tool guide apertures extending through said tool block, each of said tool guide apertures disposed perpendicular to said first channel and said first surface, each of said tool guide apertures intercepting said first channel symmetrically, each of said tool guide apertures being threaded along at least a portion of its length; b. a first tool holDer, said first tool holder comprising a coaxially bored tubular structure having a threaded portion along its outer surface for threaded engagement with any one of said plurality of said tool guide apertures, the coaxial bore through said first tool holder including first and second portions with corresponding first and second diameters, said first diameter being larger than said second diameter, a step transition between said first diameter and said second diameter providing an internal shoulder, circumferential external shoulder means on the periphery of said first tool holder adjacent the terminus of said threaded portion for limiting the distance through which said first tool holder may be threaded into one of said plurality of said tool guide apertures; and c. a tubular cutting tool adapted to be inserted into and fixed in said first tool holder, a first end of said cutting tool configured in a plurality of longitudinally directed sawteeth arranged in a circular pattern, a second end of said cutting tool dimensioned to seat against said internal shoulder in said first tool holder to define the relative longitudinal relationship between said first tool holder and said cutting tool.
Claim 4
Dependent Claim
386 words
Apparatus for boring and clearing holes to a predetermined depth in a coaxial cable, comprising: a. a tool block, said tool block being provided with a first channel extending across the full length of a first one of its surfaces, said first channel configured to substantially conform to a portion of the outer surface of a coaxial cable, a clamp member adapted for use with said tool block, said clamp member having a second channel disposed in parallel with and superimposed over said first channel, means for tightening said clamp member against said tool block, said first and second channels cooperating to form a passageway substantially conforming to the outer surface of a coaxial cable such that a second of coaxial cable disposed in said passageway is securely held when said clamp member is tightened against said block, a plurality of tool guide apertures extending through said tool block, each of said tool guide apertures disposed perpendicular to said first channel and said first surface, each of said tool guide apertures intercepting said first channel symmetrically, each of said tool guide apertures being threaded along at least a portion of its length; b. a first tool holDer, said first tool holder comprising a coaxially bored tubular structure having a threaded portion along its outer surface for threaded engagement with any one of said plurality of said tool guide apertures, the coaxial bore through said first tool holder including first and second portions with corresponding first and second diameters, said first diameter being larger than said second diameter, a step transition between said first diameter and said second diameter providing an internal shoulder, circumferential external shoulder means on the periphery of said first tool holder adjacent the terminus of said threaded portion for limiting the distance through which said first tool holder may be threaded into one of said plurality of said tool guide apertures; and c. a tubular cutting tool adapted to be inserted into and fixed in said first tool holder, a first end of said cutting tool configured in a plurality of longitudinally directed sawteeth arranged in a circular pattern, a second end of said cutting tool dimensioned to seat against said internal shoulder in said first tool holder to define the relative longitudinal relationship between said first tool holder and said cutting tool.
Claim 5
Dependent Claim
153 words
The apparatus of claim 2, which further includes: a. a second tool holder, said second tool holder comprising a coaxially bored tubular structure, the coaxial bore through said second tool holder including first and second portions with corresponding third and fourth diameters, said third diameter being larger than said fourth diameter, a step transition between said third diameter and said fourth diameter providing an internal shoulder within said second tool holder, second external shoulder means on the periphery of said second tool holder for limiting the distance through which said second tool holder may be threaded into one of said plurality of said tool guide apertures; and b. a reaming tool adapted to be inserted into and fixed in said second tool holder, said reaming tool dimensioned to seat against said internal shoulder within said second tool holder to define the relative longitudinal relationship between said second tool holder and said reaming tool.
References Cited (Backward Citations)
US1638230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |