Footwear in the form of a sandal

• US 4,419,836 A
• Filed: 01/25/1980
• Issued: 12/13/1983
• Est. Priority Date: 06/19/1978
• Status: Expired due to Term

• Current Assignee: James K. Wong
• Original Assignee: James K. Wong
• Inventors: Wong, James K.
• Primary Examiner(s): Lawson, Patrick D.
• Application Number:
  US06/115,552
• Time in Patent Office: 1,418 Days
• Field of Search: 36/32 R, 36/11.5, 36/102, 36/30 R, 36/103, 36/104, 36/110, 36/59 R
• US Class Current: 36/11.5
• CPC Class Codes: A43B 3/108 characterised by the sole

Abstract

A sandal useful especially in wet areas and also where there is soft ground such as at the beach. The sandal has opposite side edges that slope in a downward-outward direction, to provide a wider foot print that minimizes sideward twisting on soft ground, to avoid splashing of water onto the wearer, and to avoid disintegration of the side portions of soft rubber sandal material. The bottom surface of the sandal slopes upward at the rear and front to further avoid splashing of water onto the wearer. The lower surface of the sandal has a herringbone pattern, with each ridge interrupted by narrow cross projections that help avoid splipping due to hydroplaning.

Claims

1. A sandal comprising:

a sandal base;

strap means for holding a foot on the base;

said base having a lower surface that slopes upwardly forwardly at the forward portion thereof in a convex curve so that the slope angle gradually increases at progressively more forward locations;

said base lower surface sloping upwardly-rearwardly at the rearward portion thereof in a convex curve so that the slope angle gradually increases at progressively more rearward locations, whereby to avoid splashing onto the sandal when walking at the seashore or other wear areas.

2. The sandal described in claim 1 wherein:

said convex curve at the rearward portion of the sandal has a maximum slope of less than 45°

.

3. A sandal comprising:

a base; and

a strap means for holding a foot on the base;

said base has a lower surface with grooves forming ridges, each ridge having multiple narrow cross projections extending downwardly from the bottom of the ridge, said cross projections spaced from one another along the lengths of the ridges, said cross projections extending largely perpendicular to the lengths of the ridges as seen in a bottom view, each cross projection having a width as measured parallel to the length of the groove, which is less than the length of the cross projection as measured perpendicular thereto, and the length of each cross projection portion that lies below the level of the bottom of each ridge being no more than about the width of a ridge, whereby to avoid hydroplaning of the base.