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US3602912A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic head with connector blocks

Assignee: International Business Machines Corp
•
Filing: 1968-01-12
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Granted: 1971-08-31
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Expires: 1988-01-12
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Abstract

Abstract A tape head module is formed from two elements: (1) a prewound magnetic core and coil assembly and (2) a connector block in which are embedded projecting connector pins. A flattened portion of each connector pin is exposed in a channel formed in the block. The core and block are placed in a mold cavity shaped to receive them. The extremely fine leads of the coil are pulled through the channel and welded to the exposed pin portions. The corner of the channel is used as a snubbing point so that the leads are taut when they are welded. A liquid encapsulating compound is then forced under relatively low pressure through the channel and into the spaces of the mold cavity not filled by the assembly and connector block. The compound flows in a direction generally along the length of the leads to prevent breakage of the leads. The compound fills the channel and cavity spaces to encapsulate the assembly and connector block. After the compound has set, the assembly and connector block are firmly bonded together to form a rigid tape head module.

Inventors

  • 👤 William L Bowers
  • 👤 Stephen N Kochis
  • 👤 Stephen J Ramus

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 20:04
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/1272; G11B5/17; H; H01; H01F; H01F41/00; H01F41/005; H01F5/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49036; Y10T29/49041; Y10T29/49055; Y10T29/4906

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 135 words
A magnetic transducer comprising: a. an electrical element having at least a pair of leads, b. a connector block of insulating material having a channel in one surface thereof and mounted in substantially the same plane as said electrical element and offset with respect to said element in said plane, c. a pair of conductors adapted to make an external connection embedded in said block and extending in a directing generally orthogonal to said leads, a portion of each conductor being exposed in said channel, d. said leads being snubbed on a surface of said block and each being connected to a different one of said leads to be taut between their connections and said elements, and e. insulating means encapsulating said element, said connector block and said leads to form a rigid electrical module.
Claim 2
Dependent Claim 135 words
A magnetic transducer comprising: a. an electrical element having at least a pair of leads, b. a connector block of insulating material having a channel in one surface thereof and mounted in substantially the same plane as said electrical element and offset with respect to said element in said plane, c. a pair of conductors adapted to make an external connection embedded in said block and extending in a directing generally orthogonal to said leads, a portion of each conductor being exposed in said channel, d. said leads being snubbed on a surface of said block and each being connected to a different one of said leads to be taut between their connections and said elements, and e. insulating means encapsulating said element, said connector block and said leads to form a rigid electrical module.
Claim 3
Dependent Claim 73 words
A magnetic tape head transducer as defined in claim 1 wherein said magnetic transducer comprises a magnetic core and coil wound thereon forming a component of a magnetic tape head, extensions of said coil forming said leads, said core having a pair of spaced flanges which form a channel through which said leads pass, each of said flanges containing a notch for providing a mechanical interlock between said core and said encapsulAting means.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-08-30 1975-03-01 1975-08-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-08-30 1979-03-01 1979-08-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-08-30 1983-03-01 1983-08-31 $7700.00 Window Closed / Lapsed

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