US3953706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser bent beam controlled dwell wire stripper
Assignee: Lockheed Martin Corp
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Filing: 1974-12-04
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Granted: 1976-04-27
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Expires: 1994-12-04
Abstract
Abstract A device for enabling the stripping of a selected portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, involving the use of a rotatable optical unit. Our novel optical unit is equipped with an aperture at each end, with a first of these apertures being configured to selectively receive a variety of types of electrical leads whose ends are to be stripped of insulation for a certain length, and the second aperture being arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause ablation of insulation at the specified location on the electrical lead. These apertures are located on the axis of rotation of the optical unit, and optical components are utilized in the unit such as will direct and focus a laser beam at essentially right angles to a nonrotating lead inserted through the first aperture. As a result of the rotation of the optical unit, a circumferential cut may be made in the insulation of the electrical lead at the location selected by the user, thus enabling the removal of such selected portion of the insulation from the conductor or conductors of the lead. Our novel optical unit can also be utilized in a nonrotating mode as will enable a longitudinal cut to be made in an electrical lead as it is being withdrawn from the unit, or in a mode involving a withdrawal of the lead during slow rotation of the unit, thus enabling a helical cut of a type particularly desirable in the removal of insulation from a twisted lead.
Inventors
- 👤 Charles W. Harris
- 👤 Allen C. Layton
- 👤 Robert E. Howle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:07
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/08; B23K26/10; B23K26/103; H; H02; H02G; H02G1/00; H02G1/12; H02G1/1275; H02G1/128
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
211 words
A device for enabling the selective stripping of a portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, comprising a rotatable optical unit having an aperture at each end, a first of said apertures being configured to receive a variety of sizes and types of electrical leads whose ends are to be stripped of insulation for a selected length, and the second of said apertures being arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause the ablation of insulation, each of said apertures being disposed essentially on the axis of rotation of said optical unit, and optical components disposed in said optical unit at locations between said apertures for appropriately re-directing the laser energy entering through said second aperture, said optical components being responsible for directing and focusing a laser beam upon a nonrotating lead inserted through said first aperture, such laser beam, because of the rotation of said optical unit, providing a circumferential cut in the insulation of the electrical lead at a location selected by the user, thus to enable the removal of such selected portion of the insulation from the conductor of the lead.
Claim 2
Independent Claim
211 words
A device for enabling the selective stripping of a portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, comprising a rotatable optical unit having an aperture at each end, a first of said apertures being configured to receive a variety of sizes and types of electrical leads whose ends are to be stripped of insulation for a selected length, and the second of said apertures being arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause the ablation of insulation, each of said apertures being disposed essentially on the axis of rotation of said optical unit, and optical components disposed in said optical unit at locations between said apertures for appropriately re-directing the laser energy entering through said second aperture, said optical components being responsible for directing and focusing a laser beam upon a nonrotating lead inserted through said first aperture, such laser beam, because of the rotation of said optical unit, providing a circumferential cut in the insulation of the electrical lead at a location selected by the user, thus to enable the removal of such selected portion of the insulation from the conductor of the lead.
Claim 3
Dependent Claim
76 words
The device for stripping insulation from an electrical lead as defined in claim 1 in which said first aperture is configured to receive a lead holder, said lead holder having an elongate hole on its principal axis in which is disposed a movable abutment, said abutment being movable to any of a large number of selected locations, thus making it possible to determine the depth to which the electrical lead to be stripped can be inserted.
Claim 4
Dependent Claim
46 words
The device as defined in claim 2 in which a plurality of lead holders is provided, so as to be usable interchangeably in said optical unit, said lead holders having elongate holes of varying sizes, thus making it possible to properly accommodate leads of different diameters.
Claim 5
Dependent Claim
71 words
The device as defined in claim 1 in which movable blocking means is operatively associated with said second aperture, such that energy from the adjacent laser normally cannot reach the vicinity of said first aperture, and means for selectively causing said blocking means to move to an operative position out of the path taken by the energy output from the laser at such time as a lead is to be stripped.
Claim 6
Dependent Claim
24 words
The device as defined in claim 4 in which said means for selectively controlling said blocking means is under the control of the operator.
Claim 7
Dependent Claim
84 words
The device as defined in claim 4 in which said blocking means utilizes a reflecting surface, which causes the laser energy from the adjacent laser to be directed into a power meter when said blocking means is in the position away from the position allowing a lead to be stripped, and readout means operatively associated with said power meter, thus to enable the operator of the device to ascertain whether the power level of the laser is appropriate for a given wire stripping operation.
Claim 8
Dependent Claim
43 words
The device as defined in claim 1 in which said optical unit can be operated either in a rotating mode enabling a circumferential cut to be made in insulation, or a non-rotating mode enabling a longitudinal cut to be made in such insulation.
Claim 9
Dependent Claim
53 words
The arrangement as defined in claim 7 in which means are provided for bringing about the withdrawal at a controlled rate of a lead inserted into said optical unit while laser energy is being directed at the insulation of the lead, thereby to achieve a longitudinal cut simplifying the removal of the insulation.
Claim 10
Dependent Claim
42 words
The device as defined in claim 1 in which said optical unit can be operated in a mode enabling a helical cut to be made in such insulation, involving the slow rotation of said optical unit as the lead is being withdrawn.
Claim 11
Independent Claim
169 words
A device for enabling the selective stripping of a portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, comprising an optical unit having an aperture configured to receive an electrical lead whose end is to be stripped of insulation for a selected length, said optical unit having an additional aperture, arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause the ablation of insulation, and optical components disposed in said optical unit at locations between said apertures for appropriately re-directing the laser energy entering through latter aperture, said optical components being responsible for directing and focusing a laser beam upon a lead inserted through said first mentioned aperture, such laser beam providing a cut in the insulation of the electrical lead at a location selected by the user, thus to enable the removal of such selected portion of the insulation from the conductor of the lead.
Claim 12
Independent Claim
169 words
A device for enabling the selective stripping of a portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, comprising an optical unit having an aperture configured to receive an electrical lead whose end is to be stripped of insulation for a selected length, said optical unit having an additional aperture, arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause the ablation of insulation, and optical components disposed in said optical unit at locations between said apertures for appropriately re-directing the laser energy entering through latter aperture, said optical components being responsible for directing and focusing a laser beam upon a lead inserted through said first mentioned aperture, such laser beam providing a cut in the insulation of the electrical lead at a location selected by the user, thus to enable the removal of such selected portion of the insulation from the conductor of the lead.
Claim 13
Dependent Claim
45 words
The device as defined in claim 10 in which said optical unit can be operated either in a rotating mode enabling a circumferential cut to be made in the insulation, or in a non-rotating mode enabling a longitudinal cut to be made in such insulation.
Claim 14
Dependent Claim
76 words
The device for stripping insulation from an electrical lead as defined in claim 10 in which said first aperture is configured to receive a lead holder, said lead holder having an elongate hole on its principal axis in which is disposed a movable abutment, said abutment being movable to any of a large number of selected locations, thus making it possible to determine the depth to which the electrical lead to be stripped can be inserted.
Claim 15
Dependent Claim
46 words
The device as defined in claim 12 in which a plurality of lead holders is provided, so as to be usable interchangeably in said optical unit, said lead holders having elongate holes of varying sizes, thus making it possible to properly accommodate leads of different diameters.
Claim 16
Dependent Claim
71 words
The device as defined in claim 10 in which movable blocking means is operatively associated with said second aperture, such that energy from the adjacent laser normally cannot reach the vicinity of said first aperture, and means for selectively causing said blocking means to move to an operative position out of the path taken by the energy output from the laser at such time as a lead is to be stripped.
Claim 17
Independent Claim
232 words
A device for enabling the selective stripping of a portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, comprising an optical unit capable of nonrotational operation, as well as operation at selected rotational speeds, said unit having an aperture at each end, a first of said apertures being configured to receive a variety of sizes and types of electrical leads whose ends are to be stripped of insulation for a selected length, and the second of said apertures being arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause the ablation of insulation, and optical components disposed in said optical unit at locations between said apertures for appropriately re-directing the laser energy entering through said second aperture, said optical components being responsible for directing and focusing a laser beam upon a non-rotating lead inserted through said first aperture, such laser beam, during rotational operation of said optical unit, providing a circumferential cut in the insulation of an inserted electrical lead at a location selected by the user, and during non-rotational operation, providing a longitudinal cut in the insulation of an inserted electrical lead at a selected location, thus in each instance serving to simplify the removal of such selected portion of the insulation from the conductor of the lead.
Claim 18
Independent Claim
232 words
A device for enabling the selective stripping of a portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, comprising an optical unit capable of nonrotational operation, as well as operation at selected rotational speeds, said unit having an aperture at each end, a first of said apertures being configured to receive a variety of sizes and types of electrical leads whose ends are to be stripped of insulation for a selected length, and the second of said apertures being arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause the ablation of insulation, and optical components disposed in said optical unit at locations between said apertures for appropriately re-directing the laser energy entering through said second aperture, said optical components being responsible for directing and focusing a laser beam upon a non-rotating lead inserted through said first aperture, such laser beam, during rotational operation of said optical unit, providing a circumferential cut in the insulation of an inserted electrical lead at a location selected by the user, and during non-rotational operation, providing a longitudinal cut in the insulation of an inserted electrical lead at a selected location, thus in each instance serving to simplify the removal of such selected portion of the insulation from the conductor of the lead.
Claim 19
Dependent Claim
76 words
The device for stripping insulation from an electrical lead as defined in claim 15 in which said first aperture is configured to receive a lead holder, said lead holder having an elongate hole on its principal axis in which is disposed a movable abutment, said abutment being movable to any of a large number of selected locations, thus making it possible to determine the depth to which the electrical lead to be stripped can be inserted.
Claim 20
Dependent Claim
46 words
The device as defined in claim 16 in which a plurality of lead holders is provided, so as to be usable interchangeably in said optical unit, said lead holders having elongate holes of varying sizes, thus making it possible to properly accommodate leads of different diameters.
Claim 21
Dependent Claim
71 words
The device as defined in claim 15 in which movable blocking means is operatively associated with said second aperture, such that energy from the adjacent laser normally cannot reach the vicinity of said first aperture, and means for selectively causing said blocking means to move to an operative position out of the path taken by the energy output from the laser at such time as a lead is to be stripped.
Claim 22
Dependent Claim
24 words
The device as defined in claim 18 in which said means for selectively controlling said blocking means is under the control of the operator.
Claim 23
Dependent Claim
84 words
The device as defined in claim 18 in which said blocking means utilizes a reflecting surface, which causes the laser energy from the adjacent laser to be directed into a power meter when said blocking means is in the position away from the position allowing a lead to be stripped, and readout means operatively associated with said power meter, thus to enable the operator of the device to ascertain whether the power level of the laser is appropriate for a given wire stripping operation.
Claim 24
Dependent Claim
53 words
The arrangement as defined in claim 15 in which mean are provided for bringing about the withdrawal at a controlled rate of a lead inserted into said optical unit while laser energy is being directed at the insulation of the lead, thereby to achieve a longitudinal cut simplifying the removal of the insulation.
Claim 25
Dependent Claim
42 words
The device as defined in claim 15 in which said optical unit can be operated in a mode enabling a helical cut to be made in such insulation, involving the slow rotation of said optical unit as the lead is being withdrawn.
References Cited (Backward Citations)
US2858453A
Cited
US3381570A
Cited
US3534472A
Cited
US3659332A
Cited
US3622222A
Cited
US3629891A
Cited
US3642343A
Cited
US3755646A
Cited
US3667328A
Cited
US3646307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |