Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Patent
1986-07-23
1988-03-15
Kee Chi, James
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
36 93, A43B 504, A43B 714
Patent
active
047304030
ABSTRACT:
A sports shoe (1) is provided with air chambers underneath a comparatively rigid outer shell (2) such that pressure in these air chambers, i.e., the compression on the foot, can be adjusted by a pump system (5, 6). The design of the pump system is simple, easy to manufacture, compact and operationally reliable due to the valves (14, 15) of the pump system being enclosed in a common housing part (13) separated by a partition (20) from the membrane pump chamber (11). The valves (14, 15) are mounted coaxially in tandem sequence. The evacuating valve (15) can also serve as the pump suction valve and is provided at an end (37) with a manually displaceable stem which, during evacuation of the air chamber, wil make contact with the valve stem (b 32) of the pump pressure valve (14).
REFERENCES:
patent: 4583305 (1986-04-01), Miyamoto
patent: 4631843 (1986-12-01), Annovi
patent: 4654986 (1987-04-01), George
patent: 4662087 (1987-05-01), Beuch
Chi James Kee
Raichle Sportschuh AG
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