Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2000-03-06
2001-07-10
Thomas, Alexander S. (Department: 1772)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C428S095000, C428S082000, C428S088000, C428S122000, C428S167000
Reexamination Certificate
active
06258202
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to floor covering used as entrance mats in commercial and retail buildings. The mats have plastic fiber pads secured to edging and non-slip backings.
BACKGROUND OF THE INVENTION
Prior entrance mats tend to creep and fold due to pressure and impact forces of material handling carts and shopping carts on the edges of the mats. The edges in time crack, split and curl up which can cause carts to jam on the edges and persons to trip and fall. The edges also separate or become loose from the pad causing further trip hazards.
Carpet binding tape attached to the outer edges of carpets are known in the prior art. J J Hamrak in U.S. Pat. No. 4,054,698 describes a carpet tape having a flat body and a curved portion that extends over the pile along the edge of a carpet. A pressure sensitive adhesive secures the backing of the carpet to the top of the body. The curved portion of the tape is not attached to the carpet. Water and dirt can collect under the curved portion of the tape. The curved portion of the tape can flex upward and peel away from the carpet. The carpet backing has a smooth surface which does not inhibit slip and creep of the carpet on a floor.
H. A. Maxin Jr. in U.S. Pat. No. 5,114,774 addresses the problems of water and oil contamination of floor mats and preventing pedestrian slipping and skidding on wet and oily mats. The mat has a skid free upper surface bounded by an edging having self gripping fasteners and a removable member capable of absorbing liquids, such as water or oil. The removable member is located below the skid free upper surface and edging. The fasteners are attached to the removable member of the mat. The removable member does not inhibit movement and creep of the mat on the floor. The liquid collected in the member reduces the friction and holding properties of the mat on a floor thereby enhancing creep of the mat on the floor.
SUMMARY OF THE INVENTION
The invention is a floor and entrance mat having an edge that does not curl, crack or peel away from a fiber pad. The pad has a backing of non-skid material which cooperates with a non-skid web on the edge to prevent creep and folding of the mat on a floor. The edge is adhesively secured to top and bottom edge portions of the pad so that the edge does not separate from the pad and water and dirt do not collect within the edge. Wheeled carts and trucks can be readily rolled on and off the pad and edge without damaging the materials of the pad and edge.
The mat has a pad of greige material having a base and fibers projected upwardly from the base. A backing of non-skid plastic is bonded to the bottom of the base. The backing has linear treads separated with grooves that grip the floor to prevent creep and folding of the mat on the floor covered by the mat. The base has a peripheral edge portion around the mat. The top of the edge portion has been trimmed to a flat surface. An edge having an upwardly inclined body, a lip joined to the body, and a web joined to the body is adhesively secured to the peripheral edge portion of the base. The lip extends over the flat surface of the base. The web has an extension located under a portion of the backing. The lip and extension form a pocket that accommodates the peripheral edge portion of the base and a portion of the backing. The adhesive firmly secures the edge portion of the flat surface of the base to the lip and body and the portion of the backing to the extension of the web. The body is a tough and hard plastic, such as polyethylene chloride plastic. The web is soft and flexible plastic. The lip, body and web are co-extruded as a one-piece structure. The inner part of the body has a linear horizontal rib projected into the pocket and recesses on opposite sides of the rib. The rib extends into the outer edge of the base so that the adhesive bonds the base to the rib and base. Excess adhesive flows into the grooves as apposed to the fibers adjacent the lip.
REFERENCES:
patent: D. 267535 (1983-01-01), Yamazaki et al.
patent: D. 299171 (1988-12-01), Allen, Jr.
patent: 2258314 (1941-10-01), Bonnell
patent: 3234577 (1966-02-01), Mann, Jr.
patent: 3238554 (1966-03-01), Mann, Jr.
patent: 3435480 (1969-04-01), Mann, Jr.
patent: 3435481 (1969-04-01), Kessler
patent: 4054698 (1977-10-01), Hamrah
patent: 4353944 (1982-10-01), Tarui
patent: 4654245 (1987-03-01), Balzer et al.
patent: 4877672 (1989-10-01), Shreiner
patent: 5018235 (1991-05-01), Stamatiou et al.
patent: 5114774 (1992-05-01), Maxim, Jr.
patent: 5142733 (1992-09-01), Mogel et al.
patent: 5157804 (1992-10-01), Williams
patent: 5683780 (1997-11-01), Rodger et al.
patent: 1375276 (1974-11-01), None
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