Adjustable semi-flexible health shoe
US4188735A · kind A · utility
Inventor
Key dates
| Filing date | Mar 27, 1978 |
| Grant date | Feb 19, 1980 |
| Priority date | — |
| Expiry date | Mar 27, 1998 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA43B3/12
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An adjustable semi-flexible shoe is disclosed which is structurally and isometrically adapted for controllably stably supporting a human foot during walking following surgical and therapeutical treatment of the user's lower extremities while simultaneously permitting an approximated natural gait. A laminated elongate sole of semi-flexible polymeric materials has an upper sole laminate which stably supports the foot substantially free of compression while permitting limited longitudinal flexing and a lower outer sole laminate with a substantially flat surface extending from the metatarsal area through the heel area and an upwardly tapered surface in the toe area which affords cushioned approximated natural ambulation. A single integral canvas upper has a lower portion extending transversely through the sole and upper flaps which are adjustably releasably connected with one another to adjustably stably secure the user's foot to the sole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.