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US3918330A Expired / Lapsed US ⏱️ 0.0 years remaining

Insulated wire cutting and stripping apparatus

Assignee: Artos Engineering Co
•
Filing: 1974-11-18
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Granted: 1975-11-11
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Expires: 1994-11-18
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Abstract

Abstract Insulated electrical wires are successively advanced sidewise by an intermittently operated endless conveyor, and a wire cutting and stripping apparatus is provided at least at one side of the conveyor for trimming and stripping successive wires during periods of momentary standstill of the conveyor. The wire cutting and stripping apparatus has a reciprocable tool slide and complementary pairs of wire cutting and insulation stripping blades thereon. One of each pair of blades is rigidly mounted on the tool slide, and the other blade of each pair is reciprocable so that it is necessary to move only the reciprocable blades in order to cut the wire and score its insulation. A telescopic, springloaded connecting rod between a rotating crank shaft and the reciprocable cutting and stripping blades provides a dwell period during which the tool slide is retracted without opening the stripping blades. A knock-out mechanism dislodges the strippings from the rigidly mounted blades as well as from the reciprocably mounted blades.

Inventors

  • 👤 Gerald E Blaha

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 15:49
CPC Classifications
H; H02; H02G; H02G1/00; H02G1/12; H02G1/1202; H02G1/1248; H02G1/1251; H02G1/1253; H02G1/1256; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49194; Y10T29/51; Y10T29/5193

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 163 words
An insulated wire cutting and stripping apparatus for use in connection with an intermittently operable wire conveying mechanism, said apparatus comprising a stationary main frame positioned opposite to and at a fixed spacing from one side of said conveying mechanism; a tool slide reciprocably mounted on said main frame for movement into projected and retracted positions relative to said conveying mechanism; wire cutting and insulation stripping blades fixedly mounted on said tool slide, complementary wire cutting and insulation stripping blades reciprocably mounted on said tool slide in cooperative relation to said fixedly mounted wire cutting and insulation stripping blades; a crank shaft rotatably mounted on said main frame; a telescopically contractable and expandable connecting rod universally connected at one end thereof with said crank shaft; supporting means for said reciprocably mounted wire cutting and insulation stripping blades universally connected with the other end of said connecting rod, and resilient means operatively associated with said connecting rod for urging it into an expanded condition.
Claim 2
Dependent Claim 163 words
An insulated wire cutting and stripping apparatus for use in connection with an intermittently operable wire conveying mechanism, said apparatus comprising a stationary main frame positioned opposite to and at a fixed spacing from one side of said conveying mechanism; a tool slide reciprocably mounted on said main frame for movement into projected and retracted positions relative to said conveying mechanism; wire cutting and insulation stripping blades fixedly mounted on said tool slide, complementary wire cutting and insulation stripping blades reciprocably mounted on said tool slide in cooperative relation to said fixedly mounted wire cutting and insulation stripping blades; a crank shaft rotatably mounted on said main frame; a telescopically contractable and expandable connecting rod universally connected at one end thereof with said crank shaft; supporting means for said reciprocably mounted wire cutting and insulation stripping blades universally connected with the other end of said connecting rod, and resilient means operatively associated with said connecting rod for urging it into an expanded condition.
Claim 3
Dependent Claim 65 words
An insulated wire cutting and stripping apparatus as set forth in claim 1, and further comprising tightening means cooperable with wire gripping jaws of said conveying mechanism during movement of said tool slide into said retracted position thereof, said tightening means comprising a thrust transmitting element mounted on said main frame for reciprocating movement into and out of cooperative engagement with said wire gripping jaws.
Claim 4
Dependent Claim 49 words
An insulated wire cutting and stripping apparatus as set forth in claim 2, wherein an expandable and contractable cylinder and piston unit on said main frame is operatively connected with said thrust transmitting element for moving the latter into and out of cooperative engagement with said wire gripping jaws.
Claim 5
Dependent Claim 94 words
An insulated wire cutting and stripping apparatus as set forth in claim 1 and further comprising a ramp member for guiding a wire laterally through the space between said fixedly and reciprocably mounted cutting and stripping blades while said reciprocably mounted blades are retracted on said tool slide from said fixedly mounted blades; means reciprocably mounting said ramp member for lateral back and forth movement in the direction of movement of said reciprocably mounted blades relative to said tool slide; and actuating means for reciprocating said ramp member in said direction of movement thereof.
Claim 6
Dependent Claim 31 words
An insulated wire cutting and stripping apparatus as set forth in claim 4, wherein said ramp member has a through passage accommodating said fixedly mounted stripping blade on said tool slide.
Claim 7
Dependent Claim 47 words
An insulated wire cutting and stripping apparatus as set forth in claim 4 and further comprising centering means for laterally aligning said wire with said fixedly and reciprocaBly mounted cutting and stripping blades on said tool slide preparatory to a cutting stroke of said reciprocably mounted blades.
Claim 8
Dependent Claim 41 words
An insulated wire cutting and stripping apparatus as set forth in claim 6, wherein said centering means comprise a pair of complementary wire engaging fingers pivotally mounted on said main frame for relative back and forth movement laterally of said wire.
Claim 9
Dependent Claim 74 words
In an insulated wire cutting and stripping apparatus, the combination of a main frame; a stationary assembly of wire cutting and stripping blades, and a reciprocable assembly of complementary wire cutting and insulation stripping blades mounted on said main frame in cooperative relation to each other, stripped insulation knock-out members reciprocably associated, respectively, with said stationary and reciprocable blade assemblies; and actuating means for said knock-out members operatively connected with said reciprocable blade assembly.
Claim 10
Dependent Claim 74 words
In an insulated wire cutting and stripping apparatus, the combination of a main frame; a stationary assembly of wire cutting and stripping blades, and a reciprocable assembly of complementary wire cutting and insulation stripping blades mounted on said main frame in cooperative relation to each other, stripped insulation knock-out members reciprocably associated, respectively, with said stationary and reciprocable blade assemblies; and actuating means for said knock-out members operatively connected with said reciprocable blade assembly.
Claim 11
Dependent Claim 144 words
In an insulated wire cutting and stripping apparatus, the combination of a support; a stationary assembly of wire cutting and stripping blades, and a reciprocable assembly of complementary wire cutting and insulation stripping blades mounted on said support in cooperative relation to each other; stripped insulation knock-out members reciprocably associated, respectively, with said stationary and reciprocable blade assemblies; mounting means for said knock-out members guided for back and forth movement in the same direction in which said reciprocable blade assembly is movable relative to said stationary blade assembly; and lost motion connecting means operatively interposed between said reciprocable blade assembly and said knock-out members, whereby a stripped insulation sleeve lodged between said wire cutting and insulation stripping blades of either said stationary or of said reciprocable blade assembly will be dislodged upon retracting movement of said reciprocable blade assembly from said stationary blade assembly.
Claim 12
Dependent Claim 144 words
In an insulated wire cutting and stripping apparatus, the combination of a support; a stationary assembly of wire cutting and stripping blades, and a reciprocable assembly of complementary wire cutting and insulation stripping blades mounted on said support in cooperative relation to each other; stripped insulation knock-out members reciprocably associated, respectively, with said stationary and reciprocable blade assemblies; mounting means for said knock-out members guided for back and forth movement in the same direction in which said reciprocable blade assembly is movable relative to said stationary blade assembly; and lost motion connecting means operatively interposed between said reciprocable blade assembly and said knock-out members, whereby a stripped insulation sleeve lodged between said wire cutting and insulation stripping blades of either said stationary or of said reciprocable blade assembly will be dislodged upon retracting movement of said reciprocable blade assembly from said stationary blade assembly.
Claim 13
Dependent Claim 186 words
In an insulated wire trimming and insulation stripping apparatus, the combination of a support; a stationary blade assembly comprising a wire cutting blade and an insulation stripping blade, and a reciprocable blade assembly comprising a complementary wire cutting blade and a complementary insulation stripping blade mounted on said main frame in cooperative relation to said stationary blade assembly; a stripped insulation knock-out frame guided for back and forth movement in the same direction in which said reciprocable blade assembly is movable relative to said stationary blade assembly; said knock-out frame having a pair of transversely spaced cross members, one positioned between said wire cutting and insulation stripping blades of said stationary blade assembly, and the other positioned between said wire cutting and insulation stripping blades of said reciprocable blade assembly; and lost motion connecting means operatively interposed between said reciprocable blade assembly and said knock-out frame whereby a stripped insulation sleeve lodged between said wire cutting and insulation stripping blades of either said stationary or of said reciprocable blade assembly will be dislodged upon retracting movement of said reciprocable blade assembly from said stationary blade assembly.
Claim 14
Dependent Claim 186 words
In an insulated wire trimming and insulation stripping apparatus, the combination of a support; a stationary blade assembly comprising a wire cutting blade and an insulation stripping blade, and a reciprocable blade assembly comprising a complementary wire cutting blade and a complementary insulation stripping blade mounted on said main frame in cooperative relation to said stationary blade assembly; a stripped insulation knock-out frame guided for back and forth movement in the same direction in which said reciprocable blade assembly is movable relative to said stationary blade assembly; said knock-out frame having a pair of transversely spaced cross members, one positioned between said wire cutting and insulation stripping blades of said stationary blade assembly, and the other positioned between said wire cutting and insulation stripping blades of said reciprocable blade assembly; and lost motion connecting means operatively interposed between said reciprocable blade assembly and said knock-out frame whereby a stripped insulation sleeve lodged between said wire cutting and insulation stripping blades of either said stationary or of said reciprocable blade assembly will be dislodged upon retracting movement of said reciprocable blade assembly from said stationary blade assembly.
Claim 15
Dependent Claim 40 words
The combination set forth in claim 10 and further comprising stop means on said support abuttable by said knock-out frame so as to limit movement of the latter in the direction of a cutting stroke of said reciprocable blade assembly.
Claim 16
Dependent Claim 40 words
The combination set forth in claim 10 and further comprising stop means on said support abuttable by said knock-out frame so as to limit movement of the latter in the direction of a retracting stroke of said reciprocable blade assembly.

References Cited (Backward Citations)

US2497112A Cited
US2680394A Cited
US2756619A Cited
US2718802A Cited
US3029494A Cited
US3530746A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-11-10 1979-05-12 1979-11-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-11-10 1983-05-12 1983-11-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-11-10 1987-05-12 1987-11-11 $7700.00 Window Closed / Lapsed

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