Molded plastic toe cap for shoes
OwnerJohn M. Harwoodinventor
Life of this patent
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Abstract
A protective plastic toe cap for shoes includes a construction incorporating three critical minimum dimensions. These dimensions include side wall thickness, the radius of the transition between the walls and the bottom flange, and the bottom flange width.
Claims4
An injection molded plastic resin toe cap for a protective shoe of the type having a rearwardly opening shoe toe-shaped body including a roof which blends smoothly into laterally opposite generally vertical side walls and a generally vertical front wall, an open rear end defined by a rear edge including the rear edges of the roof and side walls, and an open bottom defined by a continuous bottom flange forming the lower edges of the side walls and front wall, said toe cap comprising:
- the side walls having a minimum thickness of 0.12 inch (3 mm);
- a continuous curved surface defining an interior transition between the walls and the flange, said surface having a minimum radius of curvature of 0.15 inch (3.8 mm);
- and,
- the bottom flange having a continuous flat lower surface defining a narrow uniplanar base, said base surface having a minimum width of 0.10 inch (2.5 mm).
Dependencies are inferred from the claim text.