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US4943223A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for making foam products

Assignee: SWS3 Inc
•
Filing: 1987-12-14
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Granted: 1990-07-24
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Expires: 2007-12-14
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Abstract

Abstract Apparatus for producing articles of polyurethane or the like material including a mold of the article shape and apparatus for centrifugally discharging the polyurethane material used into the mold such that polyurethane molecules will strike the wall of the mold and break so that the article produced has a smooth, non-porous outer skin and the interior of the article has a foamed interior.

Inventors

  • 👤 Vincent E. Panaroni

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 06:59
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0679; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/0423; B29C44/043; B29C41/00; B29C41/02; B29C41/04; B29C41/042; B29K; B29K2075/00; B29K2105/00; B29K2105/04; B29K2105/043; B29L; B29L2030/00; B29L2030/006

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 249 words
Apparatus for producing products using polyurethane foams comprising a support base; a distribution plate assembly carried by the support base, said distribution plate assembly including a disk having a central distribution plate with a top surface and a peripheral wall thereon; a clamping plate assembly having a disk; a mold having a first surface engaging the peripheral wall of the central distribution plate, a second surface above said top surface of the distribution plate and an opening into the mold between the said first and second surfaces and aligned with the top surface of the distribution plate; means mounting the clamping plate assembly to move the disk thereof into and out of clamping engagement with the mold, said means comprising a pivoted support arm and pivot links interconnecting the support base and the pivoted support arm, and motor means for pivoting the pivoted support arm and clamping plate; means mounting the disk of the distribution plate assembly to rotate about a central axis of said distribution plate disk; means mounting the disk of the clamping plate to rotate about a central axis of said clamping plate disk; means to rotate the disk of the distribution plate assembly about said central axis thereof and to thereby rotate the mold and the disk of the clamping plate assembly; and means to supply resin components to the center of the central distribution plate, wherein rotation of the central distribution plate will evenly distribute the resin components to the opening of the mold.
Claim 2
Dependent Claim 249 words
Apparatus for producing products using polyurethane foams comprising a support base; a distribution plate assembly carried by the support base, said distribution plate assembly including a disk having a central distribution plate with a top surface and a peripheral wall thereon; a clamping plate assembly having a disk; a mold having a first surface engaging the peripheral wall of the central distribution plate, a second surface above said top surface of the distribution plate and an opening into the mold between the said first and second surfaces and aligned with the top surface of the distribution plate; means mounting the clamping plate assembly to move the disk thereof into and out of clamping engagement with the mold, said means comprising a pivoted support arm and pivot links interconnecting the support base and the pivoted support arm, and motor means for pivoting the pivoted support arm and clamping plate; means mounting the disk of the distribution plate assembly to rotate about a central axis of said distribution plate disk; means mounting the disk of the clamping plate to rotate about a central axis of said clamping plate disk; means to rotate the disk of the distribution plate assembly about said central axis thereof and to thereby rotate the mold and the disk of the clamping plate assembly; and means to supply resin components to the center of the central distribution plate, wherein rotation of the central distribution plate will evenly distribute the resin components to the opening of the mold.
Claim 3
Dependent Claim 13 words
Apparatus as in claim 1, wherein the motor means comprises a hydraulic cylinder.
Claim 4
Dependent Claim 20 words
Apparatus as in claim 2, further including means to heat the mold and resin components therein to a desired temperature.
Claim 5
Dependent Claim 46 words
Apparatus as in claim 3, wherein the means to best the mold and resin components therein comprises heat lamps carried by the support base and the means mounting the clamping plate assembly to move the disk thereof into and out of clamping engagement with the mold.
Claim 6
Dependent Claim 20 words
Apparatus as in claim 1, further including means to heat the mold and resin components therein to a desired temperature.
Claim 7
Dependent Claim 46 words
Apparatus as in claim 5, wherein the means to heat the mold and resin components therein comprises heat lamps carried by the support base and the means mounting the clamping plate assembly to move the disk thereof into and out of clamping engagement with the mold.
Claim 8
Dependent Claim 25 words
Apparatus as in claim 1, wherein the mold includes two mold portions which are separable one from the other to facilitate removal of product therefrom.
Claim 9
Dependent Claim 40 words
Apparatus as in claim 7, wherein cords are tied around the first and second surfaces of the mold and the said surfaces have spaced notches therearound to permit resin flow into the opening of the mold and around the cords.
Claim 10
Dependent Claim 19 words
Apparatus as in claim 20, further including spaced notches formed in the first and second surfaces of the mold.

References Cited (Backward Citations)

US3200180A Cited
US3751551A Cited
US4049767A Cited
US4472340A Cited
US4379104A Cited
US4416841A Cited
US4519971A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-07-23 1994-01-22 1994-07-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-07-23 1998-01-22 1998-07-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-07-23 2002-01-22 2002-07-24 $7700.00 Window Closed / Lapsed

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