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US3805579A Expired / Lapsed US ⏱️ 0.0 years remaining

Wire forming method

Assignee: Mead Corp
•
Filing: 1972-05-01
•
Granted: 1974-04-23
•
Expires: 1992-05-01
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Abstract

Abstract A wire forming machine and method imparts an undulatory configuration to a strand of wire and includes a pair of wheels disposed alongside each other and rotatable about angularly disposed axes. Pins are disposed radially about the peripheries of both wheels. The angularly disposed wheel axes result in a variation in the spacing between the pins of one wheel and the adjacent pins on the other wheel so that wire looped about the pins is alternately tightened and loosened. Fixed wire removal and holding means are arranged so as to engage the wire at points of minimum and maximum lateral spacing respectively, an oscillatable releasing finger engages the wire following the looping thereof about one pin to release the wire from rotatable looping means, and a reciprocable plunger is arranged to engage another part of the wire to aid in securing the wire about a pin on one of the wheels.

Inventors

  • 👤 R Calvert
  • 👤 D Scott

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 04:29
CPC Classifications
B; B21; B21F; B21F45/00; B21F45/16

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 145 words
A method for imparting an undulatory configuration to a strand of wire comprising the steps of looping the strand of wire about spaced adjacent pins to provide undulations having straight parallel sides, increasing the spacing between said pins after the strand of wire is looped about said pins so as to impart a tension force to said strand of wire while urging the strand of wire against a side of at least one of said pins to cause the wire to conform generally with the shape of said side of said one pin and to cause the undulations of said wire to become stretchset without appreciably changing the initial disposition of the strand of wire relative to said pins and without shifting the undulations along the length of said strand, and subsequently decreasing the spacing between said pins to facilitate removal of the undulations therefrom.
Claim 2
Independent Claim 145 words
A method for imparting an undulatory configuration to a strand of wire comprising the steps of looping the strand of wire about spaced adjacent pins to provide undulations having straight parallel sides, increasing the spacing between said pins after the strand of wire is looped about said pins so as to impart a tension force to said strand of wire while urging the strand of wire against a side of at least one of said pins to cause the wire to conform generally with the shape of said side of said one pin and to cause the undulations of said wire to become stretchset without appreciably changing the initial disposition of the strand of wire relative to said pins and without shifting the undulations along the length of said strand, and subsequently decreasing the spacing between said pins to facilitate removal of the undulations therefrom.
Claim 3
Dependent Claim 36 words
A method according to claim 1 wherein spaced adjacent pins occupy a spaced relationship to each other which is intermediate their minimum and maximum spacing when the looping of a strand of wire is completed thereabout.
Claim 4
Dependent Claim 31 words
A method according to claim 1 wherein spaced adjacent pins occupy a spaced relationship to each other which is approximately their minimum spacing when the strand of wire is removed therefrom.

References Cited (Backward Citations)

CA475737A Cited
US1922270A Cited
US2334671A Cited
US2963048A Cited
US3199175A Cited
US3556166A Cited
US3691808A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-04-22 1977-10-22 1978-04-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-04-22 1981-10-22 1982-04-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-04-22 1985-10-22 1986-04-23 $7700.00 Window Closed / Lapsed

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