Patent US5128189A successfully refreshed from Google Patents.
US5128189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable mat with compressible ridge
Assignee: Individual
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Filing: 1989-08-18
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Granted: 1992-07-07
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Expires: 2009-08-18
Abstract
Abstract The invention described and claimed in the present application is of a disposable mat for protecting floors or other surfaces against spillage or droppage of liquid substances. The mat has a top absorbent layer, a bottom liquid impervious layer and a compressible ridge about the periphery. The compressible ridge of the mat of the invention acts as an containment dam for non-absorbent liquid. The ridge is sufficiently compressible to permit equipment on rollers to be moved across the mat.
Inventors
- 👤 David H. Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:08
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/26; B32B3/28; B32B1/00; A; A61; A61B; A61B46/00; B32B25/00; B32B25/12; B32B27/00; B32B27/06; B32B27/065; B32B27/28; B32B27/285; B32B27/30; B32B27/304; B32B27/36; B32B5/00; B32B5/18; F; F16; F16N; F16N31/00; F16N31/006; A61B46/20; A61B46/23; A61B2046/236; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2266/06; B32B2307/00; B32B2307/70; B32B2307/726; B32B2307/7265; B32B2323/00; B32B2323/04; B32B2471/00; B32B2471/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/233; Y10T428/24; Y10T428/24479; Y10T428/24488; Y10T428/24752; Y10T428/24769; Y10T428/24777
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
139 words
A disposable mat for protecting a floor or other surface against spillage or droppage of liquid substances, comprising: (a) a laminated sheet having a top absorbent layer and a bottom, nonabsorbent, liquid impervious layer; (b) means for forming about the periphery of said sheet, a compressible ridge, said ridge being sufficiently rigid so as to act as a containment barrier to nonabsorbed liquid, but said ridge being sufficiently compressible so as to permit easy movement across said mat of equipment on rollers, said means for forming said compressible ridge including applying to the bottom surface of said sheet a strip of open celled foam material, said foam material positioned such that when said sheet is placed on the floor or other surface, said sheet drapes over said foam material forming a compressible ridge about the periphery of said sheet.
Claim 2
Dependent Claim
139 words
A disposable mat for protecting a floor or other surface against spillage or droppage of liquid substances, comprising: (a) a laminated sheet having a top absorbent layer and a bottom, nonabsorbent, liquid impervious layer; (b) means for forming about the periphery of said sheet, a compressible ridge, said ridge being sufficiently rigid so as to act as a containment barrier to nonabsorbed liquid, but said ridge being sufficiently compressible so as to permit easy movement across said mat of equipment on rollers, said means for forming said compressible ridge including applying to the bottom surface of said sheet a strip of open celled foam material, said foam material positioned such that when said sheet is placed on the floor or other surface, said sheet drapes over said foam material forming a compressible ridge about the periphery of said sheet.
Claim 3
Dependent Claim
19 words
A disposable mat as claimed in claim 1, wherein said foam material is formed of a polyurethane-like open-celled foam.
Claim 4
Dependent Claim
63 words
A disposable mat as claimed in claim 1, wherein said means for forming said compressible ridge includes laminating between said top layer and said bottom layer a strip of open-celled foam material, said foam material positioned between said layers such that when said sheet is placed on said floor or other surface, a compressible ridge is formed about the periphery of said sheet.
Claim 5
Dependent Claim
19 words
A disposable mat as claimed in claim 3, wherein said foam material is formed of a polyurethane-like open-celled foam.
Claim 6
Dependent Claim
99 words
A disposable mat for a protecting a floor or other surface against spillage or droppage of liquid substances, comprising: a. a laminated sheet having a top absorbent layer formed of cellulose-like material and a bottom, non-absorbent, liquid impervious layer formed of a polyethylene-like film; b. a compressible ridge about the periphery of said sheet, said compressible ridge formed of polyurethane-like open celled foam material, said ridge being sufficiently rigid so as to act as a containment barrier to non-absorbed liquid, but said ridge being sufficiently compressible so as to permit easy movement across said mat of equipment on rollers.
Claim 7
Dependent Claim
99 words
A disposable mat for a protecting a floor or other surface against spillage or droppage of liquid substances, comprising: a. a laminated sheet having a top absorbent layer formed of cellulose-like material and a bottom, non-absorbent, liquid impervious layer formed of a polyethylene-like film; b. a compressible ridge about the periphery of said sheet, said compressible ridge formed of polyurethane-like open celled foam material, said ridge being sufficiently rigid so as to act as a containment barrier to non-absorbed liquid, but said ridge being sufficiently compressible so as to permit easy movement across said mat of equipment on rollers.
Claim 8
Dependent Claim
129 words
A disposable mat for protecting a floor or other surface against spillage or droppage of liquid substances, comprising: (a) a laminated sheet having a top absorbent layer and a bottom, nonabsorbent, liquid impervious layer; (b) means for forming about the periphery of said sheet a compressible ridge, said ridge being sufficiently rigid so as to act as a containment barrier to nonabsorbed liquid, but said ridge being sufficiently compressible so as to permit easy movement across said mat of equipment on rollers, said means for forming said compressible ridge including applying to the bottom surface of said sheet a strip of open celled foam material, forming a compressible ridge about the periphery of said sheet; and (c) means for releasably adhering said sheet to said floor or other surface.
Claim 9
Dependent Claim
129 words
A disposable mat for protecting a floor or other surface against spillage or droppage of liquid substances, comprising: (a) a laminated sheet having a top absorbent layer and a bottom, nonabsorbent, liquid impervious layer; (b) means for forming about the periphery of said sheet a compressible ridge, said ridge being sufficiently rigid so as to act as a containment barrier to nonabsorbed liquid, but said ridge being sufficiently compressible so as to permit easy movement across said mat of equipment on rollers, said means for forming said compressible ridge including applying to the bottom surface of said sheet a strip of open celled foam material, forming a compressible ridge about the periphery of said sheet; and (c) means for releasably adhering said sheet to said floor or other surface.
Claim 10
Dependent Claim
19 words
A disposable mat as claimed in claim 6, wherein said foam material is formed of a polyurethane-like open-celled foam
Claim 11
Dependent Claim
63 words
A disposable mat as claimed in claim 7, wherein said means for forming said compressible ridge includes laminating between said top layer and said bottom layer a strip of open-celled foam material, said foam material positioned between said layers such that when said sheet is placed on said floor or other surface, a compressible ridge is formed about the periphery of said sheet.
Claim 12
Dependent Claim
19 words
A disposable mat as claimed in claim 8, wherein said foam material is formed of a polyurethane-like open-celled foam.
References Cited (Backward Citations)
US4671024A
Cited
US4798754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |