US4836814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multicolored foam and method for making
Assignee: JACKSON NATIONAL LIFE
•
Filing: 1987-11-10
•
Granted: 1989-06-06
•
Expires: 2007-11-10
Abstract
Abstract A multicolored foam product and a method for the preparation thereof. Heat-plastified foamable gel of a thermoplastic resin or resins containing blowing agents are combined with different coloring materials added sequentially and extruded through an orifice of a die which is extended in length to facilitate laminar flow in the resin. This resin is expanded to form a multicolored layered foam product, such as multicolored foam planking, in a single extrusion. Multicolored foam planking produced is suitable for use as the body material for surfboards, body boards, and other recreational products.
Inventors
- 👤 John D. Bambara
- 👤 Charles E. Flathers, Jr.
- 👤 Dennis A. Knaus
- 👤 Gregory G. Palmieri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:19
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/3402; B29C44/36; B29C44/46; B29C44/50; B29C48/00; B29C48/25; B29C48/285; B29C48/29; B29C48/36; B29C48/50; B29C48/505; B29C48/53; B29C48/565; B29C48/575; B29C48/03; B29C48/295; B29C48/297; B29K; B29K2105/00; B29K2105/0005; B29K2995/00; B29K2995/0018; B29K2995/002; B29K2995/0021; B29L; B29L2031/00; B29L2031/52; B29L2031/5272; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
33 words
A surfboard or body board comprising a multicolored foam body wherein the foam body comprises a plurality of differently colored adjacent parallel layered portions in a substantially homogeneous single extruded plank of foam.
Claim 2
Dependent Claim
33 words
A surfboard or body board comprising a multicolored foam body wherein the foam body comprises a plurality of differently colored adjacent parallel layered portions in a substantially homogeneous single extruded plank of foam.
Claim 3
Dependent Claim
21 words
A surfboard of claim 1 wherein the colors of adjacent layered portions are displayed on a cut edge of the board.
Claim 4
Dependent Claim
30 words
A surfboard of claim 1 wherein colors of layered portions are displayed on a bottom surface of the board by exposing a cut portion of the cross-section of the board.
Claim 5
Dependent Claim
17 words
A surfboard of claim 2 wherein portions of said cut edges are covered with heat-laminated edge strips.
Claim 6
Dependent Claim
19 words
A surfboard of claim 4 wherein a tail portion of said cut edges is covered with a heat-laminated strip.
Claim 7
Dependent Claim
131 words
A process for making a multicolored thermoplastic body comprising: feeding a thermoplastic resin to a resin hopper of an extruder, sequentially adding at timed intervals a plurality of separate coloring materials to the resin to form a multi-colored resin, conveying the colored resin through a screw of an extruder, passing the colored resin through elongated die means for facilitating laminar flow, and passing through die lips which comprise an exit orifice to form a single body of multi-colored resin having edge portions colored by an earlier added coloring material and having center portions colored by one or more of said coloring materials added sequentially later than the said earlier added coloring material, whereby the body is characterized by inclusion of differently colored layers integrally formed in the body of multi-colored resin.
Claim 8
Dependent Claim
131 words
A process for making a multicolored thermoplastic body comprising: feeding a thermoplastic resin to a resin hopper of an extruder, sequentially adding at timed intervals a plurality of separate coloring materials to the resin to form a multi-colored resin, conveying the colored resin through a screw of an extruder, passing the colored resin through elongated die means for facilitating laminar flow, and passing through die lips which comprise an exit orifice to form a single body of multi-colored resin having edge portions colored by an earlier added coloring material and having center portions colored by one or more of said coloring materials added sequentially later than the said earlier added coloring material, whereby the body is characterized by inclusion of differently colored layers integrally formed in the body of multi-colored resin.
Claim 9
Dependent Claim
131 words
A process for making a multicolored thermoplastic foam body comprising: feeding a thermoplastic resin to a single resin hopper of an extruder, sequentially adding at timed intervals a plurality of separate coloring materials to the resin to form a multi-colored resin, adding blowing agent to the resin, conveying the multi-colored resin through a screw of the extruder; passing the multi-colored resin through elongated die means for facilitating laminar flow, passing the multi-colored resin through die lips which comprise an exit orifice to form a single body of multicolored resin having edge portions colored by an earlier added coloring material and having center portions colored by one or more of said coloring materials added sequentially later than the said earlier added coloring material, and foaming the multi-colored resin to form multi-colored foam.
Claim 10
Dependent Claim
131 words
A process for making a multicolored thermoplastic foam body comprising: feeding a thermoplastic resin to a single resin hopper of an extruder, sequentially adding at timed intervals a plurality of separate coloring materials to the resin to form a multi-colored resin, adding blowing agent to the resin, conveying the multi-colored resin through a screw of the extruder; passing the multi-colored resin through elongated die means for facilitating laminar flow, passing the multi-colored resin through die lips which comprise an exit orifice to form a single body of multicolored resin having edge portions colored by an earlier added coloring material and having center portions colored by one or more of said coloring materials added sequentially later than the said earlier added coloring material, and foaming the multi-colored resin to form multi-colored foam.
Claim 11
Dependent Claim
18 words
A process of claim 7 wherein the multicolored resin is passed through elongated lips for forming foamed planking.
Claim 12
Dependent Claim
20 words
A process of claim 7 wherein the multicolored resin is passed through circular die lips for forming foamed cylindrical planking.
Claim 13
Dependent Claim
13 words
A process of claim 7 further comprising cutting the foamed product into lengths.
Claim 14
Dependent Claim
20 words
A process of claim 7 further comprising cutting the foam body to the shape of a surfboard or body board.
Claim 15
Dependent Claim
18 words
A process of claim 8 further comprising cutting the foam body to the shape of a recreational product.
Claim 16
Dependent Claim
23 words
An extruded single thermoplastic product comprising a multicolored foam body having layers of differently colored foam manufactured by a process of claim 7.
Claim 17
Dependent Claim
15 words
A product of claim 13 wherein the foam comprises adjacent layered portions of different colors.
Claim 18
Dependent Claim
14 words
A product of claim 13 comprising multicolored foam planking having a substantially rectangular cross-section.
Claim 19
Dependent Claim
13 words
A product of claim 13 comprising multicolored foam having a substantially circular cross-section.
Claim 20
Dependent Claim
17 words
A surfboard or body board comprising a multicolored foam body made by the process of claim 1.
References Cited (Backward Citations)
CA451864A
Cited
US2174779A
Cited
US2387730A
Cited
US2450436A
Cited
US2515250A
Cited
US2740157A
Cited
US3067147A
Cited
US3431164A
Cited
US3431163A
Cited
US3413388A
Cited
US3413387A
Cited
US3422175A
Cited
US3769380A
Cited
US3954929A
Cited
US3966381A
Cited
US4011292A
Cited
US4128386A
Cited
US4125582A
Cited
US4128689A
Cited
JPS54124072A
Cited
US4457729A
Cited
US4383955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-06-05 | 1992-12-05 | 1993-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-06-05 | 1996-12-05 | 1997-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-06-05 | 2000-12-05 | 2001-06-06 | $7700.00 | Window Closed / Lapsed |