# US 8,540,538 B2 · Skidproof sports mat > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,540,538 B2 - Document ID: US8540538B2 - Status: Granted - Kind: B2 - Application number: 12/941,699 - Filed: 2010-11-08 - Published: 2011-03-03 - Granted: 2013-09-24 - Earliest claimed: 2002-01-09 - Applicants: Tzong In Yeh - Inventors: Tzong In Yeh - Web page: https://patentgrep.com/patent/US8540538B2 ## CPC - A63B 6/00: Mats or the like for absorbing shocks for jumping, gymnastics or the like - A63B 21/4037: {Exercise mats for personal use, with or without hand-grips or foot-grips, e.g. for Yoga or supine floor exercises (mats for absorbing shocks A63B6/00)} - A63C 19/04: Mats or carpets for courts - B32B 3/08: characterised by added members at particular parts {(layer formed of separate pieces of material which are juxtaposed side-by-side B32B3/14, B32B3/18)} - B32B 3/10: characterised by a discontinuous layer, i.e. formed of separate pieces of material - B32B 3/28: characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence) - B32B 3/30: characterised by a layer formed with recesses or projections, e.g. {hollows, grooves, protuberances, ribs (apertured layer B32B3/266; layer with cavities or internal voids B32B3/26)} - B32B 5/18: characterised by features of a layer {of} foamed material - B32B 5/22: characterised by the presence of two or more layers which {are next to each other and are fibrous, filamentary, formed of particles or foamed (layer formed of natural mineral fibres or particles next to a foam layer B32B19/047, next to a layer made of particles B32B19/048, or next to a fibrous or filamentary layer B32B19/06; paper layer or cardboard layer next to a paper layer or cardboard layer B32B29/005, next to a foam layer B32B29/007, next to a fibrous or filamentary layer B32B29/02, or next to a particulate layer B32B29/04)} - B32B 5/32: {at least two} layers being foamed {and next to each other} - B32B 7/023: Optical properties - B32B 7/12: using interposed adhesives or interposed materials with bonding properties - B32B 25/08: of synthetic resin - B32B 27/065: {of foam} - B63B 1/00: Hydrodynamic or hydrostatic features of hulls or of hydrofoils (hulls peculiar to submarines B63B3/13; keels B63B3/38) - B29L 2031/52: Sports equipment {; Games; Articles for amusement}; Toys (B29L2031/54 takes precedence) - B32B 38/06: Embossing - B32B 38/145: {Printing} - B32B 2266/025: Polyolefin - B32B 2305/022: Foam - B32B 2307/402: Coloured - B32B 2307/412: Transparent - B32B 2307/546: Flexural strength; Flexion stiffness - B32B 2307/56: Damping, energy absorption - B32B 2307/72: Density - B32B 2307/744: Non-slip, anti-slip - B32B 2307/75: Printability - B32B 2471/04: Mats - B63B 2231/50: Foamed synthetic materials - Y10T 428/24504: Component comprises a polymer [e.g., rubber, etc.] - Y10T 428/24802: Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] - Y10T 428/24967: Absolute thicknesses specified - Y10T 428/249981: Plural void-containing components - Y10T 428/249992: Linear or thermoplastic - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) - A63C: SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE (water skis B63B32/00, B63B34/00) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06) - B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A sports mat includes a foam sheet, an adhesive bonding film, a patterned layer and a skid proof layer. The foam sheet is made of polyethylene foam. The adhesive bonding film applied to a top surface of the foam sheet. The patterned layer has a plastic film and a pattern printed in a bottom surface of the plastic film. The plastic film together with the pattern is joined on top of the adhesive bonding film. The skid proof layer, made of thermal plastic rubber, is coated over a top surface of the plastic film. Additionally, the skid proof layer together with the patterned layer, the adhesive bonding film and the foam sheet defines a plurality of indentations and protrusions over a top surface of the skid proof layer so as to strengthen connection therebetween. ## Claims ### Claim 1 A sports mat comprising: a rollable foam sheet including a first foam layer and a second foam layer laminated to a top surface of said first foam layer, both of the first foam layer and the second foam layer made of polyethylene foam; a plastic film provided on a top surface of said second foam layer ; and a skid proof coating coated over a top surface of said plastic film and made of thermal plastic rubber. ### Claim 2 (depends on 1) The sports mat of claim 1, wherein said first foam layer is formed therebottom with a plurality of elongated ridges parallel to one another. ### Claim 3 (depends on 2) The sports mat of claim 2, wherein each of said elongated ridges of said first foam layer is arch-shaped in cross section. ### Claim 4 (depends on 2) The sports mat of claim 2, wherein both of the first foam layer and the second foam layer contains an additive of elastic resin. ### Claim 5 (depends on 1) The sports mat of claim 1 further comprising a pattern provided on said top surface of said rollable foam sheet. ### Claim 6 (depends on 5) The sports mat of claim 5, wherein said rollable foam sheet and said pattern form a contrast in color. ### Claim 7 (depends on 1) The sports mat of claim 1 further comprising a pattern provided on said top surface of said plastic film. ### Claim 8 (depends on 7) The sports mat of claim 7, wherein said rollable foam sheet and said pattern form a contrast in color. ### Claim 9 (depends on 1) The sports mat of claim 1 further comprising a pattern provided on a bottom surface of said plastic film. ### Claim 10 (depends on 9) The sports mat of claim 9, wherein said rollable foam sheet and said pattern form a contrast in color. ### Claim 11 (depends on 1) The sports mat of claim 1, wherein both of the first foam layer and the second foam layer contains an additive of elastic resin. ### Claim 12 (depends on 1) The sports mat of claim 1 further comprising a pliable resilient embedment embedded in the rollable foam sheet; and wherein the pliable resilient embedment has a top face contacting with a bottom surface of the second foam layer and a bottom face contacting with the top surface of the first foam layer. ### Claim 13 A sports mat comprising: a rollable foam sheet including a first foam layer and a second foam layer laminated to a top surface of said first foam layer, both of the first foam. layer and the second foam layer made of polyethylene foam; a pattern provided on a top surface of said second foam layer; and a skid proof coating coated over said top surface of said second foam layer and made of thermal plastic rubber. ### Claim 14 (depends on 13) The sports mat of claim 13, wherein said rollable foam sheet and said pattern form a contrast in color. ### Claim 15 (depends on 13) The sports mat of claim 13, wherein said first foam layer is formed therebottom with a plurality of elongated ridges parallel to one another. ### Claim 16 (depends on 15) The sports mat of claim 15, wherein each of said elongated ridges of said first foam layer is arch-shaped in cross section. ### Claim 17 (depends on 15) The sports mat of claim 15, wherein both of the first foam layer and the second foam layer contains an additive of elastic resin. ### Claim 18 (depends on 13) The sports mat of claim 13, wherein both of the first foam layer and the second foam layer contains an additive of elastic resin. ### Claim 19 A laminated object, comprising: a rollable foam sheet including a first foam layer and a second foam layer laminated to a top surface of said first foam layer, both of the first foam layer and the second foam layer made of polyethylene foam; a pliable resilient embedment embedded in the rollable foam sheet, the pliable resilient embedment having a continuous top face contacting with a bottom surface of the second foam layer and a continuous bottom face contacting with the top surface of the first foam layer, wherein the pliable resilient embedment has a resilience sufficient to unroll the rollable foam sheet when the rollable foam sheet is rolled and untied; and a cover coated over a top surface of the second foam layer and selected from the group of a skid proof coating and a laminated layer consisting of a plastic film on the top surface of the second foam layer and a skid proof coating on a top surface of the plastic film; wherein the skid proof coating is made of thermal plastic rubber.