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US4037318A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of making fuses

Assignee: United States Department of the Navy
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Filing: 1976-10-26
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Granted: 1977-07-26
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Expires: 1996-10-26
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Abstract

Abstract A method of making fuses for a record unit comprising providing an electrl circuit pattern on an insulated substrate and then attaching a plurality of fine wires to the circuit pattern. A groove is provided beneath the wires which are encapsulated collectively but not individually.

Inventors

  • 👤 Harold W. Burkley
  • 👤 Wayne H. Geno

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 08:24
CPC Classifications
H; H01; H01H; H01H69/00; H01H69/02; H05; H05K; H05K1/00; H05K1/02; H05K1/0286; H05K1/0293; H01H2069/027; H01H85/00; H01H85/02; H01H85/0241; H01H2085/0275; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09036; H05K2201/10; H05K2201/10007; H05K2201/10181; H05K2201/10227; H05K2201/10287; H05K3/00; H05K3/22; H05K3/28; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49107; Y10T29/49117; Y10T29/49124; Y10T29/49155; Y10T29/49165

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 134 words
A method of making fuses for a record unit comprising, first providing on an insulated substrate an electrical circuit pattern with which a plurality of fuses are to be connected, next providing a groove in said substrate in an area where said fuses are to be located, next attaching each end of a plurality of fine wires to said electrical circuit pattern, said fine wires crossing said groove in said substrate, next covering the attached ends of said fine wires with a first coating, next masking the uncovered portion of said fine wires with a flexible material, and then encapsulating said fine wires and said first coating with a second coating whereby said flexible material prevents said second coating from individually encapsulating said fine wires and prevents said second coating from entering said groove.
Claim 2
Independent Claim 134 words
A method of making fuses for a record unit comprising, first providing on an insulated substrate an electrical circuit pattern with which a plurality of fuses are to be connected, next providing a groove in said substrate in an area where said fuses are to be located, next attaching each end of a plurality of fine wires to said electrical circuit pattern, said fine wires crossing said groove in said substrate, next covering the attached ends of said fine wires with a first coating, next masking the uncovered portion of said fine wires with a flexible material, and then encapsulating said fine wires and said first coating with a second coating whereby said flexible material prevents said second coating from individually encapsulating said fine wires and prevents said second coating from entering said groove.
Claim 3
Dependent Claim 48 words
A method of making fuses for a record unit as set forth in claim 1 wherein said electrical circuit pattern is etched from a sheet of electrical conductive material bonded to said substrate and includes a common terminal to which one end of each fine wire is attached.
Claim 4
Dependent Claim 24 words
A method of making fuses for a record unit as set forth in claim 1 wherein said fine wire is 0.4 mil platinum wire.
Claim 5
Dependent Claim 30 words
A method of making fuses for a record unit as set forth in claim 1 wherein said first coating is epoxy and is cured by heating at an elevated temperature.
Claim 6
Dependent Claim 30 words
A method of making fuses for a record unit as set forth in claim 1 wherein said second coating is epoxy and is cured by heating at an elevated temperature.
Claim 7
Dependent Claim 22 words
A method of making fuses for a record unit as set forth in claim 1 wherein said flexible material is adhesive-backed paper.

References Cited (Backward Citations)

US3528048A Cited
US3548494A Cited
US3564354A Cited
US3898603A Cited
US3783506A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-07-25 1981-01-24 1981-07-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-07-25 1985-01-24 1985-07-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-07-25 1989-01-24 1989-07-26 $7700.00 Window Closed / Lapsed

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