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US4517038A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of repairing ballistic damage

Assignee: Individual
•
Filing: 1983-11-21
•
Granted: 1985-05-14
•
Expires: 2003-11-21
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Abstract

Abstract A method for repairing ballistic impact damage to structural panels of vehicles comprising the steps of cutting out the damaged area in the panel in a preselected size circular cutout, bending a circular patch including an exterior circular metal sheet laminated to a smaller circular interior cloth layer to match the surface convolutions of the panel, impregnating the interior cloth layer with resin and attaching the patch to the panel. In this manner the patch is bent to fit before impregnation and is fixed to the bent shape by fixing the cloth layer.

Inventors

  • 👤 Robert W. Miller

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 15:38
CPC Classifications
B; B29; B29C; B29C73/00; B29C73/04; B29C73/10; B64; B64F; B64F5/00; B64F5/40; B29C73/24; B29C73/26; B29C2073/264; B29L; B29L2031/00; B29L2031/60; B29L2031/608; Y; Y10; Y10S; Y10S428/00; Y10S428/911; Y10T; Y10T29/00; Y10T29/49; Y10T29/49718; Y10T29/49732; Y10T29/49734; Y10T428/00; Y10T428/20

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 79 words
A method for making repairs in a stressed panel, comprising the steps of: cutting out preselected openings in said panel; selecting a patch assembly having an exterior metal skin larger than said opening adhered to a stack of filament layers of a plan form substantially equal to said opening; bending said skin to match the surface of said panel adjacent said opening; coating said filament layers with resin; and attaching said patch assembly to the edges of said opening.
Claim 2
Independent Claim 79 words
A method for making repairs in a stressed panel, comprising the steps of: cutting out preselected openings in said panel; selecting a patch assembly having an exterior metal skin larger than said opening adhered to a stack of filament layers of a plan form substantially equal to said opening; bending said skin to match the surface of said panel adjacent said opening; coating said filament layers with resin; and attaching said patch assembly to the edges of said opening.
Claim 3
Dependent Claim 32 words
A method according to claim 1 wherein: said skin of said patch assembly comprises a circular metal structure and said filament layers comprise a circular stack concentrically adhered to said metal structure.
Claim 4
Dependent Claim 15 words
A method according to claim 2 wherein: said filament layers include layers of filament cloth.
Claim 5
Dependent Claim 13 words
A method according to claim 3 wherein: said filament cloth includes aramid filaments.

References Cited (Backward Citations)

US2692425A Cited
US2713210A Cited
US2795523A Cited
US2987098A Cited
US4181768A Cited
US4428998A Cited
US4293862A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-05-13 1988-11-12 1989-05-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-05-13 1992-11-12 1993-05-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-05-13 1996-11-12 1997-05-14 $7700.00 Window Closed / Lapsed

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