Patent ID: 8752419

Claim:
An apparatus for testing performance of an article of sporting equipment comprising: a first member, wherein the first member is arranged to support the article of sporting equipment; a second member, wherein the second member is arranged to compress the support equipment; a spring of known spring elasticity abutting the second member; a third member, wherein the third member is arranged to transmit a force through the spring member and the second member to the article of sporting equipment; a force applier, wherein the force applier is arranged to apply the force to the third member; an indicator; a first gap, wherein the first gap corresponds to a distance x 0 related to compression and movement of the spring; and a second gap, wherein the second gap corresponds to a distance D 0 specified in a standard for the article of sporting equipment, wherein the indicator is arranged to indicate compliance when the first gap closes before the second gap in response to the compression of the article of sporting equipment, and wherein the indicator is arranged to indicate non-compliance when the second gap closes before the first gap in response to the compression of the article of sporting equipment.