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US4766025A Expired / Lapsed US ⏱️ 0.0 years remaining

Composite molded article and method of making same

Assignee: Sheller-Globe Corp
•
Filing: 1986-09-25
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Granted: 1988-08-23
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Expires: 2006-09-25
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Abstract

Abstract A composite molded article and a method of fabricating such an article is disclosed, which is especially well-suited for forming one-piece interior vehicle panels, by way of a single molding operation, wherein the one-piece interior panel can be easily installed as a unit within the vehicle. In the fabrication of the one-piece molded composite article, a deformable sheet material, such as vinyl, is positioned on a female molding surface and drawn into conformity with the female molding surface of the mold cavity, either with or without preheating or vacuum forming. The mold apparatus is closed and a first moldable material is introduced into the mold assembly, with certain predetermined portions thereof being blocked off. Subsequently, a second moldable material is introduced at least into the predetermined areas previously blocked off during the introduction of the first moldable material. By such a process, the one-piece molded article can be fabricated essentially in a single integrated operation, as a one-piece structure, while maintaining the capability of providing various materials or various characteristics at different locations on the one-piece article.

Inventors

  • 👤 John L. Sanok
  • 👤 Michael L. Piechura

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 14:44
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/1418; B29C33/00; B29C33/0038; B29C33/0044; B29C45/16; B29C45/1635; B29C45/1671; B29C70/00; B29C70/68; B60; B60R; B60R21/00; B60R21/02; B60R21/04; B60R21/0428; B29C2045/14286; B29C2791/00; B29C2791/001; B29C67/00; B29C67/24; B29C67/247; B29K; B29K2075/00; B29L; B29L2031/00; B29L2031/30; B29L2031/3005; B29L2031/3041; B60R13/00; B60R13/02; B60R13/0237; B60R13/0243; Y; Y10; Y10S; Y10S264/00; Y10S264/83; Y10T; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/249921; Y10T428/249953; Y10T428/249981; Y10T428/249987; Y10T428/249991; Y10T428/249992

Claims Analysis

Total Claims: 42
Claim 1
Independent Claim 231 words
A method of making a composite molded article, comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, said first and second molding surfaces having predetermined respective shapes; positioning a deformable sheet material on said second molding surface; urging said sheet material into said second mold in order to conform said sheet material to said second mold surface in a configuration corresponding generally to said predetermined shape of said second molding surface; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by introducing a first moldable material into said closed mold assembly between said first molding surface and said sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said configuration corresponding generally to said predetermined shape of said second molding surface; blocking off at least one predetermined area of said sheet material during said introduction of said first moldable material in order to substantially prevent said first moldable material from contacting said predetermined area of said sheet material; and introducing a second moldable material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously block-off predetermined area.
Claim 2
Independent Claim 231 words
A method of making a composite molded article, comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, said first and second molding surfaces having predetermined respective shapes; positioning a deformable sheet material on said second molding surface; urging said sheet material into said second mold in order to conform said sheet material to said second mold surface in a configuration corresponding generally to said predetermined shape of said second molding surface; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by introducing a first moldable material into said closed mold assembly between said first molding surface and said sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said configuration corresponding generally to said predetermined shape of said second molding surface; blocking off at least one predetermined area of said sheet material during said introduction of said first moldable material in order to substantially prevent said first moldable material from contacting said predetermined area of said sheet material; and introducing a second moldable material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously block-off predetermined area.
Claim 3
Dependent Claim 58 words
A method according to claim 1, wherein said blocking off step includes: positioning at least one plug member in contact with said predetermined area of said sheet material prior to introducing said first moldable material; and removing said plug member from said contact with said predetermined area prior to introducing said second moldable material into said mold assembly.
Claim 4
Dependent Claim 77 words
A method according to claim 2, wherein said blocking off step further includes: positioning said plug member in contact with said predetermined area of said sheet material; then closing said mold assembly prior to introducing said first moldable material; reopening said mold assembly after introducing said first moldable material; removing said plug member from said contact with said predetermined area of said conformed sheet material; and reclosing said mold assembly prior to introducing said second moldable material.
Claim 5
Dependent Claim 106 words
A method according to claim 2, wherein said plug member is movably interconnected with one of said mold members for extension toward the other of said mold members and for retraction away from the other of said mold members, said blocking off step further including: extending said plug member into said contact with said predetermined area of said sheet material prior to introducing said first moldable material; and retracting said plug member out of said contact with said predetermined area of said sheet material after introducing said first moldable material, said extension and retraction of said mold member being performed while said mold assembly is closed.
Claim 6
Dependent Claim 29 words
A method according to claim 1, wherein said step of introducing said second moldable material includes injecting a second moldable material that cures to a relatively soft, deformable state.
Claim 7
Dependent Claim 34 words
A method according to claim 1, wherein said step of introducing said first moldable material includes reaction injection molding a multiconstituent urethane material that cures to a relatively rigid state in said mold assembly.
Claim 8
Dependent Claim 34 words
A method according to claim 6, wherein said step of introducing said second moldable material includes reaction injection molding a multiconstituent material that cures to a relatively soft, deformable state in said mold assembly.
Claim 9
Dependent Claim 36 words
A method according to claim 1, wherein said step of drawing said sheet material is performed generally simultaneously with said step of introducing said first moldable material between said first molding surface and said sheet material.
Claim 10
Dependent Claim 24 words
A method according to claim 1, further including the step of heating said sheet material prior to said step of urging said sheet material.
Claim 11
Dependent Claim 24 words
A method according to claim 1, further including the step of vacuum forming sheet material prior to said step of urging said sheet material.
Claim 12
Dependent Claim 55 words
A method according to claim 1, wherein said mold assembly is provided with movable clamping members therein, said method further including moving said clamp members into a clamping engagement with predetermined portions of said sheet material in order to clampingly secure said sheet material to said mold assembly in at least one predetermined location thereon.
Claim 13
Dependent Claim 267 words
A composite molded vehicle interior panel member having a predetermined exterior shape and configuration, said panel member being formed by a process comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, at least said second mold member having a shape complementary to said predetermined exterior shape of said panel; positioning a deformable sheet material on said second molding surface; urging said sheet material into said second mold in order to conform said sheet material to said second mold surface and to form an exterior shape of said sheet material corresponding to said predetermined exterior shape of said panel; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by reaction injection molding a first moldable urethane material into said closed mold assembly between said first molding surface and said sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said exterior shape corresponding to said predetermined exterior shape of said panel; blocking off at least one predetermined area of said sheet material during said reaction injection molding of said first moldable urethane material in order to substantially prevent said first moldable urethane material from contacting said predetermined area of said sheet material; and reaction injection molding a second moldable urethane material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously blocked-off predetermined area.
Claim 14
Dependent Claim 267 words
A composite molded vehicle interior panel member having a predetermined exterior shape and configuration, said panel member being formed by a process comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, at least said second mold member having a shape complementary to said predetermined exterior shape of said panel; positioning a deformable sheet material on said second molding surface; urging said sheet material into said second mold in order to conform said sheet material to said second mold surface and to form an exterior shape of said sheet material corresponding to said predetermined exterior shape of said panel; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by reaction injection molding a first moldable urethane material into said closed mold assembly between said first molding surface and said sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said exterior shape corresponding to said predetermined exterior shape of said panel; blocking off at least one predetermined area of said sheet material during said reaction injection molding of said first moldable urethane material in order to substantially prevent said first moldable urethane material from contacting said predetermined area of said sheet material; and reaction injection molding a second moldable urethane material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously blocked-off predetermined area.
Claim 15
Dependent Claim 71 words
A composite molded panel member according to claim 12, wherein said blocking off step includes: positioning at least one plug member in contact with said predetermined area of said sheet material prior to said reaction injection molding of said first moldable urethane material; and removing said plug member from said contact with said predetermined area prior to said reaction injection molding of said second moldable urethane material into said mold assembly.
Claim 16
Dependent Claim 119 words
A composite molded panel member according to claim 13, wherein said plug member is movably interconnected with one of said mold members for extension toward the other of said mold members and for retraction away from the other of said mold members, said blocking off step further including: extending said plug member into said contact with said predetermined area of said sheet material prior to said reaction injection molding of said first moldable urethane material; and retracting said plug member out of said contact with said predetermined area of said sheet material after said reaction injection molding of said first moldable urethane material, said extension and retraction of said mold member being performed while said mold assembly is closed.
Claim 17
Dependent Claim 33 words
A composite molded panel member according to claim 12, wherein said step of introducing said second moldable material includes reaction injecting a second moldable material that cures to a relatively soft, deformable state.
Claim 18
Dependent Claim 23 words
A composite molded panel member according to claim 12, wherein said predetermined areas comprise a vehicle interior arm rest portion of said panel.
Claim 19
Dependent Claim 23 words
A composite molded panel member according to claim 12, wherein said predetermined areas comprise a vehicle interior energy absorption portion of said panel.
Claim 20
Dependent Claim 39 words
A composite molded panel member according to claim 12, wherein said step of urging said sheet material is performed generally simultaneously with said step of introducing said first moldable material between said first molding surface and said sheet material.
Claim 21
Dependent Claim 27 words
A composite molded panel member according to claim 12, further including the step of heating said sheet material prior to said step of urging said sheet material.
Claim 22
Dependent Claim 28 words
A composite molded panel member according to claim 12, further including the step of vacuum forming said sheet material prior to said step of urging said sheet material.
Claim 23
Dependent Claim 58 words
A composite molded panel member according to claim 12, wherein said mold assembly is provided with movable clamping members therein, said method further including moving said clamp members into a clamping engagement with predetermined portions of said sheet material in order to clampingly secure said sheet material to said mold assembly in at least one predetermined location thereon.
Claim 24
Independent Claim 239 words
A method of making a composite molded article, comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, said first and second molding surfaces having predetermined respective shapes; positioning a deformable sheet material on said second molding surface; heating said sheet material; vacuum forming said sheet material into said second mold in order to conform said sheet material to said second mold surface in a configuration corresponding generally to said predetermined shape of said second molding surface; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by introducing a first moldable material into said closed mold assembly between said first molding surface and said conformed sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said configuration corresponding generally to said predetermined shape of said second molding surface; blocking off at least one predetermined area of said conformed sheet material during said introduction of said first moldable material in order to substantially prevent said first moldable material from contacting said predetermined area of said conformed sheet material; and introducing a second moldable material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously blocked-off predetermined area.
Claim 25
Independent Claim 239 words
A method of making a composite molded article, comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, said first and second molding surfaces having predetermined respective shapes; positioning a deformable sheet material on said second molding surface; heating said sheet material; vacuum forming said sheet material into said second mold in order to conform said sheet material to said second mold surface in a configuration corresponding generally to said predetermined shape of said second molding surface; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by introducing a first moldable material into said closed mold assembly between said first molding surface and said conformed sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said configuration corresponding generally to said predetermined shape of said second molding surface; blocking off at least one predetermined area of said conformed sheet material during said introduction of said first moldable material in order to substantially prevent said first moldable material from contacting said predetermined area of said conformed sheet material; and introducing a second moldable material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously blocked-off predetermined area.
Claim 26
Dependent Claim 59 words
A method according to claim 22, wherein said blocking off step includes: positioning at least one plug member in contact with said predetermined area of said conformed sheet material prior to introducing said first moldable material; and removing said plug member from said contact with said predetermined area prior to introducing said second moldable material into said mold assembly.
Claim 27
Dependent Claim 78 words
A method according to claim 23, wherein said blocking off step further includes: positioning said plug member in contact with said predetermined area of said conformed sheet material; then closing said mold assembly prior to introducing said first moldable material; reopening said mold assembly after introducing said first moldable material; removing said plug member from said contact with said predetermined area of said conformed sheet material; and reclosing said mold assembly prior to introducing said second moldable material.
Claim 28
Dependent Claim 108 words
A method according to claim 23, wherein said plug member is movably interconnected with one of said mold members for extension toward the other of said mold members and for retraction away from the other of said mold members, said blocking off step further including: extending said plug member into said contact with said predetermined area of said conformed sheet material prior to introducing said first moldable material; and retracting said plug member out of said contact with said predetermined area of said conformed sheet material after introducing said first moldable material, said extension and retraction of said mold member being performed while said mold assembly is closed.
Claim 29
Dependent Claim 29 words
A method according to claim 22, wherein said step of introducing said second moldable material includes injecting a second moldable material that cures to a relatively soft, deformable state.
Claim 30
Dependent Claim 34 words
A method according to claim 22, wherein said step of introducing said first moldable material includes reaction injection molding a multiconstituent urethane material that cures to a relatively rigid state in said mold assembly.
Claim 31
Dependent Claim 34 words
A method according to claim 27, wherein said step of introducing said second moldable material includes reaction injection molding a multiconstituent material that cures to a relatively soft, deformable state in said mold assembly.
Claim 32
Dependent Claim 55 words
A method according to claim 22, wherein said mold assembly is provided with movable clamping members therein, said method further including moving said clamp members into a clamping engagement with predetermined portions of said sheet material in order to clampingly secure said sheet material to said mold assembly in at least one predetermined location thereon.
Claim 33
Dependent Claim 272 words
composite molded vehicle interior panel member having a predetermined exterior shape and configuration, said panel member being formed by a process comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, at least said second mold member having a shape complementary to said predetermined exterior shape of said panel; positioning a deformable sheet material on said second molding surface; heating said sheet material; vacuum forming said sheet material into said second mold in order to conform said sheet material to said second mold surface, said conformed sheet material having an exterior shape corresponding to said predetermined exterior shape of said panel; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by reaction injection molding a first moldable urethane material into said closed mold assembly between said first molding surface and said conformed sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said exterior shape corresponding to said predetermined exterior shape of said panel; blocking off at least one predetermined area of said conformed sheet material during said reaction injection molding of said first moldable urethane material in order to substantially prevent said first moldable urethane material from contacting said predetermined area of said conformed sheet material; and reaction injection molding a second moldable urethane material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously blocked-off predetermined area.
Claim 34
Dependent Claim 272 words
composite molded vehicle interior panel member having a predetermined exterior shape and configuration, said panel member being formed by a process comprising the steps of: providing a selectively closable mold assembly including a first mold and a second mold having respective first and second molding surfaces, at least said second mold member having a shape complementary to said predetermined exterior shape of said panel; positioning a deformable sheet material on said second molding surface; heating said sheet material; vacuum forming said sheet material into said second mold in order to conform said sheet material to said second mold surface, said conformed sheet material having an exterior shape corresponding to said predetermined exterior shape of said panel; closing said mold assembly; forming a relatively rigid substrate base for said sheet material by reaction injection molding a first moldable urethane material into said closed mold assembly between said first molding surface and said conformed sheet material, said first moldable material being composed of a material having a rigidity when cured that is greater than the rigidity of said sheet material in order to retain said sheet material in said exterior shape corresponding to said predetermined exterior shape of said panel; blocking off at least one predetermined area of said conformed sheet material during said reaction injection molding of said first moldable urethane material in order to substantially prevent said first moldable urethane material from contacting said predetermined area of said conformed sheet material; and reaction injection molding a second moldable urethane material into said mold assembly between said first mold surface and said conformed sheet material at least at said previously blocked-off predetermined area.
Claim 35
Dependent Claim 72 words
A composite molded panel member according to claim 29, wherein said blocking off step includes: positioning at least one plug member in contact with said predetermined area of said conformed sheet material prior to said reaction injection molding of said first moldable urethane material; and removing said plug member from said contact with said predetermined area prior to said reaction injection molding of said second moldable urethane material into said mold assembly.
Claim 36
Dependent Claim 121 words
A composite molded panel member according to claim 31, wherein said plug member is movably interconnected with one of said mold members for extension toward the other of said mold members and for retraction away from the other of said mold members, said blocking off step further including: extending said plug member into said contact with said predetermined area of said conformed sheet material prior to said reaction injection molding of said first moldable urethane material; and retracting said plug member out of said contact with said predetermined area of said conformed sheet material after said reaction injection molding of said first moldable urethane material, said extension and retraction of said mold member being performed while said mold assembly is closed.
Claim 37
Dependent Claim 32 words
A composite molded panel member according to claim 30, wherein said step of introducing said second moldable material includes injecting a second moldable material that cures to a relatively soft, deformable state.
Claim 38
Dependent Claim 23 words
A composite molded panel member according to claim 30, wherein said predetermined areas comprise a vehicle interior arm rest portion of said panel.
Claim 39
Dependent Claim 23 words
A composite molded panel member according to claim 30, wherein said predetermined areas comprise a vehicle interior energy absorption portion of said panel.
Claim 40
Dependent Claim 58 words
A composite molded panel member according to claim 30, wherein said mold assembly is provided with movable clamping members therein, said method further including moving said clamp members into a clamping engagement with predetermined portions of said sheet material in order to clampingly secure said sheet material to said mold assembly in at least one predetermined location thereon.
Claim 41
Dependent Claim 80 words
A composite molded panel member according to claim 13, wherein said blocking off step further includes: positioning said plug member in contact with said predetermined area of said sheet material; then closing said mold assembly prior to introducing said first moldable material; reopening said mold assembly after introducing said first moldable material; removing said plug member from said contact with said predetermined area of said conformed sheet material; and reclosing said mold assembly prior to introducing said second moldable material.
Claim 42
Dependent Claim 80 words
A composite molded panel member according to claim 31, wherein said blocking off step further includes: positioning said plug member in contact with said predetermined area of said sheet material; then closing said mold assembly prior to introducing said first moldable material; reopening said mold assembly after introducing said first moldable material; removing said plug member from said contact with said predetermined area of said conformed sheet material; and reclosing said mold assembly prior to introducing said second moldable material.

References Cited (Backward Citations)

US3112987A Cited
CH483768A Cited
US4444705A Cited
JPS5693525A Cited
US4303728A Cited
US4420447A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-08-23 1992-02-22 1992-08-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-08-23 1996-02-22 1996-08-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-08-23 2000-02-22 2000-08-23 $7700.00 Window Closed / Lapsed

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