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US3688548A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for the manufacture of aluminum strip conductors

Assignee: MA Aluminum Corp
•
Filing: 1970-05-26
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Granted: 1972-09-05
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Expires: 1990-05-26
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Abstract

Abstract This invention relates to apparatus for reshaping both edges of an aluminum strip of 0.2-3.00 mm. in thickness into rounded smooth edges adapted for an electric conductor. The edge of the strip has irregular burrs resulting from slitting of the aluminum strip of commercial width. In operation, the strip is pulled from its coiled supply, through a three-roll assembly, engaged with the groove of the reshaping rolls, through a cleaning chamber, and finally to a recoiler to be coiled again. The reshaping roll is urged by fluid pressure toward the edge so as to treat it with a relatively weak force in order to prevent the roll from damaging the strip.

Inventors

  • 👤 Shigenori Kawaguchi
  • 👤 Yoshioki Toi
  • 👤 Shiyozo Suyama

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 16:01
CPC Classifications
B; B21; B21D; B21D19/00; B21D19/005

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 282 words
In an apparatus for reshaping the edges of an aluminum strip conductor wherein said strip is moved from a supply roll to a recoil roll while said edges are pressed by a plurality of grooved reshaping rolls, said apparatus including a base frame, at least one pair of reshaping roll assemblies mounted in opposing fashion on said base frame and movable thereon toward one another to press said strip therebetween; the improvement wherein said at least one pair of reshaping roll assemblies comprises a first pair of reshaping roll assemblies, each of the rolls of which have therein a V-shaped groove with angles of 1*30* above and below the horizontal center line thereof; and a second pair of reshaping roll assemblies, each of the rolls of which have therein a U-shaped groove with angles of 1*- 20* above and below the horizontal center line thereof; and forming an arc at the apex thereof having a radius of from 0.05- 0.7 mm. at a predetermined distance from the edge of said roll; each of said reshaping roll assemblies comprising slide means mounted on said base frame for movement in a direction transverse to the movement of said strip, a lower block mounted on said slide means and movable in said direction, fluid pressure means operably connected to said lower block for sliding said lower block in said direction, a stud bolt pivotally mounted in said lower block and extending upwardly therefrom, an upper block attached to said stud bolt and mounted above said lower block, said rolls rotatably mounted on said upper block, whereby said rolls of each of said reshaping roll assemblies may be selectively pressed against said edges of said strip.
Claim 2
Dependent Claim 282 words
In an apparatus for reshaping the edges of an aluminum strip conductor wherein said strip is moved from a supply roll to a recoil roll while said edges are pressed by a plurality of grooved reshaping rolls, said apparatus including a base frame, at least one pair of reshaping roll assemblies mounted in opposing fashion on said base frame and movable thereon toward one another to press said strip therebetween; the improvement wherein said at least one pair of reshaping roll assemblies comprises a first pair of reshaping roll assemblies, each of the rolls of which have therein a V-shaped groove with angles of 1*30* above and below the horizontal center line thereof; and a second pair of reshaping roll assemblies, each of the rolls of which have therein a U-shaped groove with angles of 1*- 20* above and below the horizontal center line thereof; and forming an arc at the apex thereof having a radius of from 0.05- 0.7 mm. at a predetermined distance from the edge of said roll; each of said reshaping roll assemblies comprising slide means mounted on said base frame for movement in a direction transverse to the movement of said strip, a lower block mounted on said slide means and movable in said direction, fluid pressure means operably connected to said lower block for sliding said lower block in said direction, a stud bolt pivotally mounted in said lower block and extending upwardly therefrom, an upper block attached to said stud bolt and mounted above said lower block, said rolls rotatably mounted on said upper block, whereby said rolls of each of said reshaping roll assemblies may be selectively pressed against said edges of said strip.
Claim 3
Dependent Claim 60 words
The improvement claimed in claim 1, wherein said first pair of reshaping roll assemblies is positioned upstream of said second pair of reshaping roll assemblies, and further comprising a third pair of reshaping roll assemblies positioned downstream of said second pair of reshaping roll assemblies, said third pair having rolls with V-shaped grooves similar to those of said first pair.
Claim 4
Dependent Claim 14 words
The improvement claimed in claim 1, wherein said fluid pressure means comprises pneumatic means.
Claim 5
Dependent Claim 14 words
The improvement claimed in claim 1, wherein said fluid pressure means comprises hydraulic means.
Claim 6
Dependent Claim 30 words
The improvement claimed in claim 1, further comprising fluid pressure control means connected to said fluid pressure means for supplying pressure in the range of 0.7-1.4 kg/cm2 to said rolls.

References Cited (Backward Citations)

US3006401A Cited
US3336778A Cited
US3323342A Cited
US3367162A Cited
US3513677A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-09-05 1976-03-06 1976-09-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-09-05 1980-03-06 1980-09-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-09-05 1984-03-06 1984-09-05 $7700.00 Window Closed / Lapsed

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