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US4353944A Expired / Lapsed US ⏱️ 0.0 years remaining

Shoe scraper mat

Assignee: Individual
•
Filing: 1980-05-02
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Granted: 1982-10-12
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Expires: 2000-05-02
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Abstract

Abstract A shoe scraper mat comprising a mat holder of a heavy-gage rubber having a bottom plate and surrounding walls extending upright along the perimeter of the bottom plate, thus defining a space enclosed by the walls and a mat body which is fitted detachably in the space and is a laminate material prepared by interlacing and cumulating stiff filaments in multi-layer in a sparse state and bonding them together, the upper level of the mat body being located lower than the height of the surrounding walls and the upper surrounding walls defining a rib configuration over the mat body. Another mat holder has further a partition wall dividing the space into two compartments, in which a rough scraper mat body made of the laminate material and a finishing scraper mat body are fitted, respectively, thereby to provide two-stage type of a shoe scraper mat.

Inventors

  • 👤 Hiroyuki Tarui

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 09:08
CPC Classifications
A; A47; A47L; A47L23/00; A47L23/22; A47L23/26; A47L23/266; Y; Y10; Y10T; Y10T428/00; Y10T428/23; Y10T428/237; Y10T428/23907; Y10T428/24; Y10T428/24777; Y10T428/24942; Y10T428/24992

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 486 words
A shoe scraper mat, comprising: a mat holder having a bottom wall, integral side walls extending upwardly from the perimeter of said bottom wall and an integral partition wall extending upwardly from the central portion of said bottom wall so that said side walls and said partition wall define two shallow, mat-holding recesses, said mat bolder being made of heavy gauge soft rubber so that the mat holder has good positional stability and possesses compressive rebound elasticity; a rough scraper mat body disposed in and substantially completely filling one of said recesses, said rough scraper mat body being a laminate of irregularly coiled, undulating, stiff filaments which are interlaced, interlocked and bonded with each other and are distributed sparsely in a multi-layer state to provide a relatively large void volume in said rough scraper mat body so that said rough scraper mat body is effective for scraping off and retaining dirt from shoes; a finishing scraper mat body disposed in and substantially completely filling the other of said recesses, said finishing scraper mat body being made of a carpet piece with the upper surface of said finishing scraper mat body being downwardly offset from the upper edges of said side walls; said side walls continuing with the same lateral width past both said mat bodies, the portions of said side walls adjacent the marginal edges of only said rough scraper mat body having along their inner surfaces laterally outwardly extending recessed portions which recessed portions snugly receive therein the marginal portions of only said rough scraper mat body, said recessed portions forming the upper edges of said side walls adjacent the marginal edges of only said rough scraper mat body as integral, inwardly projecting lips of the same soft rubber material, which lips overlie the marginal edge portions of the upper surface of said rough scraper body so that said rough scraper mat body is releasably retained by said soft rubber lips in said one recess, the upper surface of said rough scraper mat body being downwardly offset from the upper edges of said lips whereby to retain dirt within said rough scraper mat body, the filaments of said rough scraper mat body being entirely disposed below the lower surfaces of said lips, the top surfaces of of the lips being coplanar with the top surface of the portions of the side walls bounding said other recess; the upper edge of said partition wall being downwardly offset from the upper edges of said side walls, both said mat bodies having substantially planar upper surfaces which are substantially coplanar with each other and with the upper edge of said partition wall and with the underside of said lips, the recessed portions of the side wall extending from one end of said partition around the periphery of said one recess to the other end of said partition, but not beyond said partition ends or into the other recess.
Claim 2
Dependent Claim 486 words
A shoe scraper mat, comprising: a mat holder having a bottom wall, integral side walls extending upwardly from the perimeter of said bottom wall and an integral partition wall extending upwardly from the central portion of said bottom wall so that said side walls and said partition wall define two shallow, mat-holding recesses, said mat bolder being made of heavy gauge soft rubber so that the mat holder has good positional stability and possesses compressive rebound elasticity; a rough scraper mat body disposed in and substantially completely filling one of said recesses, said rough scraper mat body being a laminate of irregularly coiled, undulating, stiff filaments which are interlaced, interlocked and bonded with each other and are distributed sparsely in a multi-layer state to provide a relatively large void volume in said rough scraper mat body so that said rough scraper mat body is effective for scraping off and retaining dirt from shoes; a finishing scraper mat body disposed in and substantially completely filling the other of said recesses, said finishing scraper mat body being made of a carpet piece with the upper surface of said finishing scraper mat body being downwardly offset from the upper edges of said side walls; said side walls continuing with the same lateral width past both said mat bodies, the portions of said side walls adjacent the marginal edges of only said rough scraper mat body having along their inner surfaces laterally outwardly extending recessed portions which recessed portions snugly receive therein the marginal portions of only said rough scraper mat body, said recessed portions forming the upper edges of said side walls adjacent the marginal edges of only said rough scraper mat body as integral, inwardly projecting lips of the same soft rubber material, which lips overlie the marginal edge portions of the upper surface of said rough scraper body so that said rough scraper mat body is releasably retained by said soft rubber lips in said one recess, the upper surface of said rough scraper mat body being downwardly offset from the upper edges of said lips whereby to retain dirt within said rough scraper mat body, the filaments of said rough scraper mat body being entirely disposed below the lower surfaces of said lips, the top surfaces of of the lips being coplanar with the top surface of the portions of the side walls bounding said other recess; the upper edge of said partition wall being downwardly offset from the upper edges of said side walls, both said mat bodies having substantially planar upper surfaces which are substantially coplanar with each other and with the upper edge of said partition wall and with the underside of said lips, the recessed portions of the side wall extending from one end of said partition around the periphery of said one recess to the other end of said partition, but not beyond said partition ends or into the other recess.
Claim 3
Dependent Claim 32 words
A shoe scraper mat as claimed in claim 1 in which the amount of said filaments, per unit area, is in the range of from about 200 to 800 g/m 2 .
Claim 4
Dependent Claim 29 words
A shoe scraper mat as claimed in claim 1 in which said bottom wall is substantially flat, said lips are coplanar and extend substantially parallel with said bottom wall.

References Cited (Backward Citations)

US1008618A Cited
GB421835A Cited
US3278967A Cited
US3696459A Cited
DE2601712A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-10-11 1986-04-12 1986-10-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-10-11 1990-04-12 1990-10-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-10-11 1994-04-12 1994-10-12 $7700.00 Window Closed / Lapsed

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