Pneumatic pressure indicator

Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium

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G01L 706

Patent

active

057674124

ABSTRACT:
An athletic shoe (20) having an inflatable air bladder (52) integrated into the design and construction of the shoe, and apparatus (50) for inflating the air bladder, as well as apparatus (82) for sensing and indicating the pressure in the bladder, all incorporated into the design of the shoe.

REFERENCES:
patent: 1403972 (1922-01-01), Middleton
patent: 1416814 (1922-05-01), Glickerman
patent: 1489164 (1924-04-01), Smith
patent: 2449953 (1948-09-01), Rippingille
patent: 2702053 (1955-02-01), Baker
patent: 3249760 (1966-05-01), Miller
patent: 3595085 (1971-07-01), Harrah
patent: 3808706 (1974-05-01), Mosley et al.

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