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US4656722A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of forming a decorative panel of molded plastic

Assignee: Individual
•
Filing: 1985-10-21
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Granted: 1987-04-14
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Expires: 2005-10-21
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Abstract

Abstract An improved method of forming a decorative panel of molded plastic comprising the steps of constructing a form having a detailed masonry surface; covering the detailed surface with a mold release material; applying a thin layer of gel coat over the mold release; applying a plurality of layers of fiberglass matte and resin over the gel coat layer; allowing the plurality of fiberglass matte and resin layers to harden thereby forming a heat resistant mold having a female side being formed against the detailed surface and a side opposite from the female side; removing the mold from the form; perforating the mold thereby providing fluid communication between the two sides; connecting a vacuum apparatus to the side opposite of the mold; placing a sheet of high impact plastic above and adjacent the female side of the mold; activating a heater thereby heating the plastic sheet to a pliable state; activating the vacuum apparatus thereby drawing the plastic sheet into the female side of the mold; and removing the formed panel from the mold.

Inventors

  • 👤 Larry Armstrong

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 20:04
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/10; B29C33/00; B29C33/38; B29C33/3842; B29C33/3857; B29C33/3892; B29C51/26; B29C51/30; B29C51/36; B29C33/40; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29K; B29K2105/00; B29K2105/06; B29L; B29L2031/00; B29L2031/10; B29L2031/722; B29L2031/7222; Y; Y10; Y10S; Y10S264/00; Y10S264/78; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4998; Y10T29/49982

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 283 words
An improved method of forming a decorative panel of molded plastic comprising the steps of, constructing a form having a realistically detailed surface; covering said detailed surface with a mold release material; applying a thin layer of gel coat over said mold release material; applying a plurality of layers of fiberglass matte and resin over said gel coat layer; allowing said plurality of layers of fiberglass matte and resin to harden thereby forming a mold having a female side being formed against said detailed surface and a side opposite from said female side; removing said mold from said form; perforating said mold with a plurality of small holes thereby providing fluid communication between said female side and said side opposite; providing a vacuum means to said side opposite of said mold; placing a sheet of plastic in a retention means, thereby disposing said sheet above and adjacent said female side of said mold; locking said sheet of plastic in said retention means; activating a heating means, thereby heating said sheet to a pliable state; activating a ram means, thereby placing said mold in a sealed position directly adjacent the pliable sheet of plastic; activating said vacuum means, thereby drawing said pliable sheet of plastic into said female side of said mold; cooling said formed panel; and unlocking said retention means and removing said formed panel from said mold; wherein the step of constructing a form having a realistically detailed surface includes the steps of, constructing a rectangular wooden base; affixing shims of varying thicknesses to the wooden base; and affixing a veneer of authentic material to each shim thereby resulting in a detailed surface duplicating an actual structure comprised of the authentic material.
Claim 2
Dependent Claim 283 words
An improved method of forming a decorative panel of molded plastic comprising the steps of, constructing a form having a realistically detailed surface; covering said detailed surface with a mold release material; applying a thin layer of gel coat over said mold release material; applying a plurality of layers of fiberglass matte and resin over said gel coat layer; allowing said plurality of layers of fiberglass matte and resin to harden thereby forming a mold having a female side being formed against said detailed surface and a side opposite from said female side; removing said mold from said form; perforating said mold with a plurality of small holes thereby providing fluid communication between said female side and said side opposite; providing a vacuum means to said side opposite of said mold; placing a sheet of plastic in a retention means, thereby disposing said sheet above and adjacent said female side of said mold; locking said sheet of plastic in said retention means; activating a heating means, thereby heating said sheet to a pliable state; activating a ram means, thereby placing said mold in a sealed position directly adjacent the pliable sheet of plastic; activating said vacuum means, thereby drawing said pliable sheet of plastic into said female side of said mold; cooling said formed panel; and unlocking said retention means and removing said formed panel from said mold; wherein the step of constructing a form having a realistically detailed surface includes the steps of, constructing a rectangular wooden base; affixing shims of varying thicknesses to the wooden base; and affixing a veneer of authentic material to each shim thereby resulting in a detailed surface duplicating an actual structure comprised of the authentic material.
Claim 3
Dependent Claim 20 words
An improved method as set forth in claim 1 wherein said veneer of authentic material comprises a layer of bricks.
Claim 4
Dependent Claim 20 words
An improved method as set forth in claim 1 wherein said veneer of authentic material comprises a layer of stone.
Claim 5
Dependent Claim 20 words
An improved method as set forth in claim 1 wherein said veneer of authentic material comprises a layer of shingles.
Claim 6
Dependent Claim 25 words
An improved method as set forth in claim 1 and including finishing said formed panel with a layer of acrylic lacquer on its detailed surface.
Claim 7
Dependent Claim 28 words
An improved method as set forth in claim 1 and including the application of insulation material to the side opposite of the detailed surface of said formed panel.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-04-13 1990-10-13 1991-04-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-04-13 1994-10-13 1995-04-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-04-13 1998-10-13 1999-04-14 $7700.00 Window Closed / Lapsed

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