Farriery – Shoes – Cushioned
Patent
1987-02-03
1988-08-23
Swiatek, Robert P.
Farriery
Shoes
Cushioned
168 11, 168 12, A01L 702
Patent
active
047654120
ABSTRACT:
A horseshoe made of resilient material having a low modulus of elasticity, low density and an allowable working stress in the range of 15,000 to 22,000 PSI. The configuration of the spring, in combination with these properties, provides a working deflection in the range of 0.3 to 0.5 of an inch under a load of 2000 pounds, i.e. a spring rate of 5000 pounds per inch, and weighing in the range of 8 to 10 ounces. The purpose of the resilience is to relieve shock loads in horses' hooves and, on a corollary basis, improve the performance of the horse. The horseshoe is a single piece having a horseshoe shaped flange to be attached to the horse's hoof, a second horseshoe shaped flange which contacts the terrain and a curved channel interconnecting the two flanges, spaced apart and parallel to each other. Protrusions on the flanges limit deflection of the flanges toward each other to keep the stresses in the spring well within the allowable range. The second flange has cutouts which provide clearance for the tools and fasteners used to attach the shoe to the hoof. A wear plate can be attached to the second flange to augment the durability and function of the shoe. The wear plate incorporates protrusions which fill in the access cutouts in the flange.
REFERENCES:
patent: 3180421 (1965-04-01), Hirshberg et al.
patent: 3747684 (1973-07-01), Wallen
patent: 4333532 (1982-06-01), Mennick
patent: 4420046 (1983-12-01), Choplin
patent: 4496002 (1985-01-01), Jones et al.
patent: 4557334 (1985-12-01), Cattaneo
Colonel Richard C.
Lindh Devere V.
Jenny Robert W.
Lynch Michael
Swiatek Robert P.
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