Abstract: A foot cushioning device to absorb shock primarily shock due to heel strike which device is insertable in or may be incorporated in footwear. The exterior of the body of the device carries primary shock absorbers extending at least from the portion of the device in the heel area. The primary shock absorber deforms to protect the foot by absorbing initial shock loads. Secondary shock absorbers are also provided which with increased deformation will provide resistance to higher shock load so that a non-linear force displacement behavior similar to that occurring in the natural heel pad occurs. In the preferred embodiment, the body of the device is a heel cup and the primary and secondary shock absorbing members are defined by longer and shorter ribs extending longitudinally and transversely along the outer surface of the heel cup in a grid-like pattern.

Abstract: An ankle supporting and foot cushinoning device including a stretchable ankle having a tubular body fitting over at least a portion of the foot of the wearer and extending around the heel area to the ankle area. A heel cup is attached to the anklet having a resilient body which defines a recess to receive the heel portion of the foot of the wearer. The body is provided with shock absorbing means in at least an area adjacent to the os calcis portion of the wearer's foot whereby the ankle is supported and properly maintains the heel cup in a controlled position to absorb shock.

Abstract: A cushioning pad or mat for protecting the human foot and body while walking or standing. The mat is of a bonded, multi-layer construction with an upper moisture-absorbing layer, an intermediate resilient layer of foam rubber which will mold to the individual's particular foot contour and irregularities and a lower shock-absorbing layer of soft natural latex rubber which is resilient and has memory. Air holes are provided at spaced intervals through the mat and the special cellular design provides a bellows action to enhance the flow of air around and through the mat as well as to improve blood circulation in the extremities of the user. In the preferred embodiment, the mat is configured as an insole for insertion of footwear. In other embodiments, the mat may be used as protective knee pads, helmet liners and the like.

Abstract: A foot cushioning device having a body defining a cup-like recess to receive at least the heel or os calcis portion of the foot which is insertable in ordinary footwear. The exterior of the body carries shock absorbing projections extending from at least the rear of the heel portion to the underside of the foot. The projections deform and deflect to protect the foot by absorbing shock forces on the weight bearing portions of the foot. The cushioning device of the present invention may also be adapted to extend substantially along the entire plantar surface of the foot and may be integrally incorporated as a part of footwear.