Boots – shoes – and leggings – Soles – Cushion
Patent
1989-04-13
1991-02-26
Meyers, Steven N.
Boots, shoes, and leggings
Soles
Cushion
36 93, 36 3B, 36114, A43B 1320, A43B 706
Patent
active
049951734
ABSTRACT:
A shoe, boot, sneaker, etc. incorporates a foot-actuated pump which is connected to one or more expandable air bladders located in portions of the footware where contour fitting is desirable. Walking or running actuates the pump. An adjustable relief valve connected to the bladder releases air when a preselected pressure is exceeded. The relief valve is accessible externally for easy adjustment by the wearer. Regardless of the external ambient temperature or degree of user activity, the pump, in conjunction with the relief valve, maintains a preselected pressure and assures that the selected fit between the user's foot and footware is maintained at all times.
REFERENCES:
patent: 3670429 (1972-06-01), Androsiglio
patent: 3973336 (1979-08-01), Ahn
patent: 4178013 (1979-12-01), Bataille
patent: 4236725 (1980-12-01), Bataille
patent: 4312140 (1982-01-01), Reber
patent: 4577417 (1986-03-01), Cole
patent: 4583305 (1986-04-01), Miyamoto
patent: 4631893 (1986-12-01), Annovi
patent: 4702022 (1987-10-01), Porcher
patent: 4712316 (1987-12-01), Baggio
patent: 4730403 (1988-03-01), Walkhoff
patent: 4763426 (1988-08-01), Polus
Cooper Judith
Cooper Leonard
Meyers Steven N.
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