Patent US4882205A successfully refreshed from Google Patents.
US4882205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the manufacture of floor or wall coverings incorporating pebbles, and the product obtained therefrom
Assignee: Eurofloor SA
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Filing: 1987-07-01
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Granted: 1989-11-21
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Expires: 2007-07-01
Abstract
Abstract An apparatus and method for coating a substrate with plastisol and depositing pebbles into the ungelled coated plastisol is presented. A powder containing fusible particles compatible with the coated substrate and the pebbles is then deposited by at least one rotary silk-screen printing frame and thereafter a heat treatment is carried out in an oven or with infrared lamps at a temperature below the distortion temperature of the substrate in order to set the deposited materials.
Inventors
- 👤 Gerard Valenduc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:03
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0005; D06N7/0039; D06N7/0052; D06N7/0055; Y; Y10; Y10T; Y10T428/00; Y10T428/22; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/24405; Y10T428/24479; Y10T428/24612
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
75 words
Process for the manufacture of synthetic coverings including the steps of: depositing a layer of plastisol onto a substrate; depositing a plurality of discrete particles into said plastisol layer; depositing a powder containing fusible particles compatible with said plastisol coated substrate and said discrete particles; heat treating said deposited layers at a temperature below the distortion temperature of said substrate to thereby set said deposited materials; and heating said powder to melt said fusible particles.
Claim 2
Dependent Claim
75 words
Process for the manufacture of synthetic coverings including the steps of: depositing a layer of plastisol onto a substrate; depositing a plurality of discrete particles into said plastisol layer; depositing a powder containing fusible particles compatible with said plastisol coated substrate and said discrete particles; heat treating said deposited layers at a temperature below the distortion temperature of said substrate to thereby set said deposited materials; and heating said powder to melt said fusible particles.
Claim 3
Dependent Claim
20 words
Process according to claim 1 including the step of: compacting said discreet particles after the deposition of said powder layer.
Claim 4
Dependent Claim
27 words
Process according to claim 2 wherein: said compacting step is carried out at a temperature such that adhesion is precluded and such that surface homogenization is sufficient.
Claim 5
Dependent Claim
20 words
Process according to claim 3 wherein: said compacting step temperature is between about l20° C. and about 170° C .
Claim 6
Dependent Claim
25 words
Process according to claim 1 wherein: said plastisol is deposited in a thickness adapted to the particle size of said discreet particles to be deposited.
Claim 7
Dependent Claim
26 words
Process according to claim 1 wherein: said discreet particles are deposited in excess in the ungelled coated plastisol layer and wherein the excess is then removed.
Claim 8
Dependent Claim
13 words
Process according to claim 1 wherein: said discreet particles comprise fragments of PVC.
Claim 9
Dependent Claim
34 words
Process according to claim 1 wherein: said powder is deposited by means of a rotary silk screen printing frame without contact between said substrate and said deposits of material and said silk-screen printing frame.
Claim 10
Dependent Claim
22 words
Process according to claim 1 wherein said heat treatment comprises: a setting operation at a temperature of between 160 and 20° C.
Claim 11
Dependent Claim
13 words
Process according to claim 6 wherein: said discreet particles comprise fragments of PVC.
Claim 12
Dependent Claim
14 words
Process according to claim 1 including the step of: at least one surface treatment.
Claim 13
Dependent Claim
15 words
Process according to claim 11 wherein said surface treatment step comprises: embossing said deposited layers.
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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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |