Boots – shoes – and leggings – Boots and shoes – Foot-supporting or foot-conforming feature
Patent
1990-08-10
1992-06-30
Sewell, Paul T.
Boots, shoes, and leggings
Boots and shoes
Foot-supporting or foot-conforming feature
36114, 36 585, A43B 720
Patent
active
051251710
ABSTRACT:
A shoe comprising a sole, an upper, and at least one spring. The sole includes a portion for supporting the ball of the foot of a user. The upper is secured to the sole and covers the foot of the user when the user is wearing the shoe. The upper includes a portion extending up above the ankle of the user when the user is wearing the shoe. The sole and upper are moveable between a plantarflexion position and a dorsiflexion position. The spring is secured to the upper for biasing the upper in the plantarflexion position. The spring is loaded and energy stored therein as the upper is moved toward the dorsiflexion position whereby the spring urges the upper back toward the plantarflexion position.
REFERENCES:
patent: 246984 (1881-09-01), Stillman
patent: 406328 (1889-07-01), Yagn
patent: 519656 (1894-05-01), Barber
patent: 522371 (1894-07-01), Mayer et al.
patent: 526956 (1894-10-01), Wright
patent: 1446230 (1923-02-01), Welter
patent: 1510408 (1922-06-01), Lychou
patent: 1610700 (1926-12-01), Morton
patent: 1692896 (1928-11-01), Hilgert
patent: 2069752 (1937-02-01), Dorr
patent: 2302694 (1942-11-01), Jennings
patent: 2763071 (1956-09-01), Napier
patent: 2972822 (1961-02-01), Tanner
patent: 3028861 (1962-04-01), Shapiro
patent: 3707787 (1973-01-01), Hughes
patent: 3799159 (1974-03-01), Scott
patent: 3928872 (1975-12-01), Johnson
patent: 3970083 (1976-07-01), Carrigan
patent: 4130115 (1978-12-01), Taylor
patent: 4450832 (1984-05-01), Waddell
patent: 4575954 (1986-03-01), Bye
patent: 4577419 (1986-03-01), Chassaing
patent: 4643176 (1987-02-01), Mason et al.
patent: 4651726 (1987-03-01), Holland
patent: 4665905 (1987-05-01), Brown
patent: 4669457 (1987-06-01), Hallisey
patent: 4671258 (1987-06-01), Barthlome
patent: 4766681 (1988-08-01), O'Rourke et al.
patent: 4768500 (1988-09-01), Mason et al.
patent: 4776111 (1988-10-01), Crowley
patent: 4936295 (1990-06-01), Crane
patent: 4989350 (1991-02-01), Bunch
Kavanaugh Ted
Sewell Paul T.
LandOfFree
Shoe with spring biased upper does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shoe with spring biased upper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shoe with spring biased upper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1854984