Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Patent
1981-11-24
1984-10-16
Lawson, Patrick D.
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
A43B 504
Patent
active
044766408
ABSTRACT:
The device comprises an adjusting element having a variable working length and being associated, at the ends thereof, with two separate and mutually movable points on a boot, the adjusting element including a cylindrical body on the interior whereof a piston is slidably mounted which acts on a fluid and a valve controlling the passage opening of the fluid for varying the elastic bias developed by the adjusting element as it is adjusted in one direction independently from the bias applied during an adjustment in the opposite direction.
REFERENCES:
patent: 3619914 (1971-11-01), Hanson et al.
patent: 3633291 (1972-01-01), Caporicci
patent: 3718995 (1973-03-01), Graup
patent: 4173084 (1979-11-01), Kirsch
Aldinio Giuseppe
Baggio Giorgio
Josif Albert
Lawson Patrick D.
Modiano Guido
Nordica S.p.A.
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