Patent US3822037A successfully refreshed from Google Patents.
Patent US3645156A successfully refreshed from Google Patents.
US3645156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic wire nick detector for electric wire cut and strip machines
Assignee: General Electric Co
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Filing: 1970-06-11
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Granted: 1972-02-29
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Expires: 1990-06-11
Abstract
Abstract An automatic wire nick detector for electrical lead wire cut and strip machines, for detecting any potentially damaging contact between the lead wire stock and one of the insulation stripping blades used for severing or scoring the insulation of the wire preparatory to its stripping. For sensing and indicating such contacts, each of the stripping blades is connected in series circuit relation with an indicating or control device, with the wire cutter blades and, through those blades, with the length of wire stock which extends between them and the insulation stripping blades, so that in the event of any stripping blades contact with the wire the sensing circuit is completed and the indicating or control device is energized thereby. In this way reliable indication of nicking or other potential stripping blade damage to electrical leads as produced by wire cut and strip machines may be afforded automatically, with only very minor changes in the machine structure and very simple associated electrical circuitry.
Inventors
- 👤 Heinrich F Meyer
- 👤 Edward L Minchow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:13
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/12; H02G1/1202; H02G1/1248; H02G1/1251; H02G1/1253; H02G1/1258; Y; Y10; Y10S; Y10S83/00; Y10S83/924; Y10T; Y10T83/00; Y10T83/02; Y10T83/0207; Y10T83/081; Y10T83/088; Y10T83/849; Y10T83/85
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
171 words
In combination in apparatus for cutting insulated electrical wire to desired length and stripping insulation from the cut ends, a. a pair of cutter head assemblies each comprising a wire cutter blade and at least one insulation stripping blade and means mounting said blades in electrically insulated and mechanically assembled relation; b. means mounting said cutter head assemblies in opposed relation and including actuator means for stroking them together so as to cause said wire cutter blades to sever the wire between them and to cause said insulation stripping blades to score the wire insulation to enable stripping thereof from the wire; c. and electrical circuit means for detecting contact between the wire and said insulation stripping blade potentially injurious to the wire, said circuit means including therein said insulation stripping blade, said wire cutter blade, the length of wire between said insulation stripping blade and said wire cutter blade, and means for detecting electrical continuity through the circuit when completed by contact of the insulation stripping blade with the wire.
Claim 2
Dependent Claim
171 words
In combination in apparatus for cutting insulated electrical wire to desired length and stripping insulation from the cut ends, a. a pair of cutter head assemblies each comprising a wire cutter blade and at least one insulation stripping blade and means mounting said blades in electrically insulated and mechanically assembled relation; b. means mounting said cutter head assemblies in opposed relation and including actuator means for stroking them together so as to cause said wire cutter blades to sever the wire between them and to cause said insulation stripping blades to score the wire insulation to enable stripping thereof from the wire; c. and electrical circuit means for detecting contact between the wire and said insulation stripping blade potentially injurious to the wire, said circuit means including therein said insulation stripping blade, said wire cutter blade, the length of wire between said insulation stripping blade and said wire cutter blade, and means for detecting electrical continuity through the circuit when completed by contact of the insulation stripping blade with the wire.
Claim 3
Dependent Claim
46 words
Apparatus as defined in claim 1 wherein each of said cutter head assemblies further includes a wire blade mounted in juxtaposed relation with said wire stripping blade and having a beveled entry edge assuring centering of the wire as said cutter head assemblies are stroked together.
Claim 4
Dependent Claim
178 words
In combination in apparatus for cutting insulated electrical wire to desired length and stripping insulation from the cut ends, a. a cutter head assembly comprising a wire cutter blade, first and second insulation stripping blades, and means mounting said blades in electrically insulated and mechanically assembled relation with said stripping blades spaced to either side of said cutter blade a distance equal to the desired stripped length of wire; b. first electrical circuit means including therein said first insulation stripping blade, said wire cutter blade, the length of wire between said first stripping blade and said cutter blade, and means for detecting electrically continuity in the circuit thus constituted when continuity is established by contact of said first stripping blade with the wire; c. and second electrical circuit means including therein said second insulation stripping blade, said wire cutter blade, the length of wire between said second stripping blade and said cutter blade, and means for detecting electrical continuity in the circuit thus constituted when continuity is established by contact of said second stripping blade with the wire.
Claim 5
Dependent Claim
178 words
In combination in apparatus for cutting insulated electrical wire to desired length and stripping insulation from the cut ends, a. a cutter head assembly comprising a wire cutter blade, first and second insulation stripping blades, and means mounting said blades in electrically insulated and mechanically assembled relation with said stripping blades spaced to either side of said cutter blade a distance equal to the desired stripped length of wire; b. first electrical circuit means including therein said first insulation stripping blade, said wire cutter blade, the length of wire between said first stripping blade and said cutter blade, and means for detecting electrically continuity in the circuit thus constituted when continuity is established by contact of said first stripping blade with the wire; c. and second electrical circuit means including therein said second insulation stripping blade, said wire cutter blade, the length of wire between said second stripping blade and said cutter blade, and means for detecting electrical continuity in the circuit thus constituted when continuity is established by contact of said second stripping blade with the wire.
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) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |