Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Patent
1996-08-20
1999-06-29
Sewell, Paul T.
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
36154, 36 44, 36102, 36 88, A43B 1338, A43B 714
Patent
active
059158204
ABSTRACT:
A structural chassis includes a structural chassis and a foam chassis or sock liner sandwiched together to form an assembly that can be inserted into and substantially occupy a footbed of a shoe upper. Discrete sole elements are attached to a bottom side of the upper so as to expose certain portions of the bottom side therebetween. This absence of outsole material in those areas makes the upper collapsible about those areas since the outsole provides no support in those areas. Instead, the structure is provided by the chassis of the chassis, which is customized to the user's foot by placing one or more notches in strategic locations along the chassis where the foot naturally flexes. One such notch is located on the chassis in a position that allows the chassis to flex about a forward push-off axis of the foot that runs through the first and second MTP joints. Two collinear notches are formed on the chassis to allow the structural chassis shoe to flex about a lateral push-off axis that runs through the third, fourth and fifth MTP joints.
REFERENCES:
patent: 730366 (1903-06-01), Gunthorpe
patent: 2680919 (1954-06-01), Riggs
patent: 3550597 (1970-12-01), Coplans
patent: 4398357 (1983-08-01), Batra
patent: 4439934 (1984-04-01), Brown
patent: 4562651 (1986-01-01), Frederick et al.
patent: 4715131 (1987-12-01), Kremendahl
patent: 4783910 (1988-11-01), Boys, II
patent: 4803747 (1989-02-01), Brown
patent: 5384973 (1995-01-01), Lyden
patent: 5408761 (1995-04-01), Gazzano
Kalin Xavier K.
Kraeuter Charles D.
Adidas A G
Sewell Paul T.
Stashick Anthony
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