Patent ID: 8056594

Claim:
An external puncture-sealing patch for a vehicle tire comprising: a base that is thin and flexible for attachment to the exterior of the tire, the base having a top surface and a bottom surface; a number of sharp pins partially implanted in the base in a radial arrangement around a central void protruding vertically downward from the bottom surface of the base to form a large spiked pad for penetratively engaging a depth of the tire about its puncture upon depression onto the top surface of the base; and a thick coat of an elastomeric sealant on the bottom surface of the base for sealingly adhering the spiked pad to the tire as the sealant fills any irregular clearances between the spiked pad and tire to reinforce the attachment thereof, wherein the base has two layers bonded together, the respective layers having a number of concentric annular grooves facing inwardly of the base in an opposing manner for firmly holding the implanted pins by an extra amount of glue that fills the grooves and the rest of the opposing layers.