Sole and heel structure with premolded bulges and expansible cavities
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 9, 1997
Grant Date -
N/A
app pub date -
Jan 2, 1996
filing date -
Jan 2, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully