Energaire Corporation

Other

Karl M Schmidt

George S Cole

Stuart E Jenkins

Harry W Edwards

Michelle R Schmidt

A shoe sole and heel structure is provided. The structure includes an outsole having interior and exterior surfaces and a bulge projecting from the exterior surface, the bulge defining a cavity opening at the interior surface, and a midsole overlying the outsole, the midsole having an outsole-facing surface and a foot-facing surface. The structure also includes a hermetic attachment between the interior surface of the outsole and the outsole-facing surface of the midsole to form a member having a sole portion and a heel portion, wherein the cavity cooperates with a portion of the midsole to define a pocket. The structure further includes an expandable bladder, a tube defining a passageway in the member providing fluid communication between the pocket and the bladder, and fluid permanently disposed in the space jointly defined by the pocket, the bladder and the passageway, whereby at rest a foot in a shoe incorporating the structure is cushioned comfortably on the fluid in the pocket and bladder. Either the pocket or the bladder can be disposed in sole portion with the other disposed in the heel portion.

Thrust producing sole and heel structure with interior and exterior

A shoe sole and heel structure is provided. The structure includes an outsole having interior and exterior surfaces, and a bulge projecting from the exterior surface, with the bulge defining a first cavity opening at the interior surface. The structure also includes a midsole overlying the outsole. The midsole has an outsole-facing surface and a foot-facing surface and a second cavity opening at the outsole-facing surface. The first cavity cooperates with a portion of the midsole to define a first pocket and the second cavity cooperates with a portion of the outsole to define a second pocket. The structure also includes a passageway disposed between the first and second pockets for fluid communication between the first pocket and the second pocket. The interior surface of the outsole is hermetically attached to the outsole-facing surface of the midsole to form a member having a heel portion and a sole portion and so that fluid at atmospheric pressure is permanently located in the space jointly defined by the first and second pockets and the passageway. One of the pockets can be disposed in the heel portion and the other of the pockets can be disposed in the sole portion so that in striding fluid alternates through the passageway between the pockets so as to provide shock absorption and an alternate lifting effect by the pockets which provide forward thrust both in the heel portion and the sole portion that facilitates moving.

Heel and sole structure with opposite cavities

A generally U-shaped bulge having a bight portion and elongated leg portions and defining a correspondingly-shaped cavity is molded into the heel portion and/or the metatarsal portion of the outer bottom member of a shoe, the cavities tapering in depth and width from the bight portion to the distal ends of the leg portions. The bulge is disposed and oriented so as to provide a cushioning and lifting effect, and the leg portions are spaced apart a distance substantially greater than their width and are disposed closer to the peripheral edge of the member than to the longitudinal axis thereof for providing improved lateral stability. The bulges may communicate with associated cavities by narrow passageways or may function independently of other bulge structures formed in the member.

Heel/metatarsal structure having tapered stabilizing bulges

A shoe sole and heel construction is provided. The construction includes a structure having an exterior ground-contacting surface, a flexible bulge formed in the structure and projecting from the exterior ground-contacting surface for contact with the ground in use and defining a first pocket. The construction also includes a second resiliently expansible pocket formed in the structure and disposed to avoid contact with the ground in use and a passageway formed in the structure and communicating with each of the first and second pockets. Fluid is permanently confined in a space jointly defined by the pockets and the passageway whereby when an external force is applied to the bulge, fluid is forced from the first pocket through the passageway to expand the second pocket and when the external force is removed, the expanded second pocket resiliently forces fluid back to the first pocket.

Sole and heel structure with premolded bulges and expansible cavities

A plurality of bulges is molded into the heel portion or metatarsal portion of the bottom member of a shoe, the bulges respectively defining cavities. At least one restricted passageway is molded into the portion between the cavities. A sealing member is attached to the outer member by adhesive, whereby air at atmospheric pressure is permanently located in the space jointly defined by the passageway and the cavities.

Heel/metatarsal structure having premolded bulges

A shoe sole and heel member has a sole portion and a heel portion. Bulges are molded into the heel portion and the metatarsal region of the sole portion defining heel and metatarsal cavities. Passageways between the cavities enable air to move back and forth therebetween. A sealing member is attached to the sole and heel member to hermetically seal the air in the cavities and the passageways. In one embodiment, a single U-shaped heel cavity communicates with a single metatarsal cavity through a Y-shaped passageway. Rigid stabilizers laterally flank the cavity-defining bulges. In another embodiment the heel cavity has forward and rearward portions interconnected by a narrow channel, the portions respectively communicating through separate passageways with opposite sides of the metatarsal cavity, with oppositely-directed one-way valves in the passageways. In a third embodiment, there are two separate metatarsal cavities and two separate heel cavities respectively intercommunicating through two passageways.

Thrust producing shoe sole and heel improved stability

A building brick includes a through-extending bore of a trapezoidal cross-sectional configuration to ease removal of a building brick from a mold during fabrication. The central bore permits the stacking of the building bricks to include the bottom wall in downward orientation to accommodate a greater quantity of mortar at the base portion thereof for a stable mortar configuration in use. A further embodiment of the invention includes the bottom wall of a concave configuration to assist in the positioning of mortar between adjacent building bricks, as well as a further embodiment including a forward wall flange extending downwardly relative to the concave surface and a second end wall flange to assist in the positioning of mortar between adjacent bricks to secure the mortar in a semi-solid state.

Mortar securing building brick

A thrust producing shoe sole and heel having fluid-proof cavities located in the heel portion and in the sole portion which underlies the metatarsal ball area of a foot for which the sole and heel is sized, the cavities being connected by restricted passageways. The material underlying the cavities at the bottom of the sole and heel is resilient and wear-resistant. Fluid is contained within the cavities and passageways in such pressure and amount as to cause bulges below the normal bottoms of the sole and heel, whereby at rest a foot on the sole and heel is cushioned comfortably on the fluid in the bulges, and in walking and running, fluid under bulge producing pressure alternates through the passageways between the cavities, producing shock absorption and an alternate lifting effect by the sole and heel bulges which provides forward thrust both in the heel portion and in the metatarsal ball area that facilitates walking and running. The shape and disposition of the heel bulges and of the metatarsal ball area bulges are such that the sole and heel of the invention exhibits superior lateral stability.

Thrust producing shoe sole and heel

A thrust producing shoe sole and heel having fluid-proof cavities respectively located in the heel portion and in the sole portion which underlies the metatarsal ball area of a foot for which the sole and heel is sized, the two cavities being connected by a restricted passageway. The material underlying the two cavities at the bottom of the sole and heel is resilient and wear-resistant. Fluid, either gas or liquid, is contained within the cavities and passageway in such pressure and amount as to cause bulges below the normal bottoms of the sole and heel, whereby at rest a foot on the sole and heel is cushioned comfortably on the fluid in the bulges, and in walking fluid under bulge producing pressure alternates through the passageway between the two cavities, producing shock absorption and an alternate lifting effect by the bulges which provides forward thrust both in the heel portion and the metatarsal ball area that facilitates walking.

Growing community of inventors

Woodside, CA, United States of America

Karl M Schmidt