Patent ID: 9366051
Filing Date: 2016-06-14
CPC Classification: A45B,E04H

Claim Text:
1. An impact sand anchor, the impact sand anchor comprising: a. an anchor body, said anchor body being in a shape of a hollow cylinder, said anchor body defining an anchor bottom end, an anchor top end and an anchor longitudinal axis between said anchor top end and said anchor bottom end; b. a plurality of cantilever beams defined by said hollow cylinder, each of said cantilever beams defining a cantilever top end, a cantilever bottom end and an elongated dimension between said cantilever top end and said cantilever bottom end, said cantilever bottom ends in combination defining said anchor bottom end; c. each of said cantilever beams having a first position, said elongated dimension of each of said cantilever beams being generally parallel to said anchor longitudinal axis when said cantilever beams are in said first position, each said cantilever beam being elastically urged to said first position; d. a second position of said cantilever beams, each of said cantilever beams being elastically movable to said second position when said anchor bottom end is placed in contact with a sand and is driven to an insertion depth, said insertion depth being less than said elongated dimension of said cantilever beams, said bottom ends of said cantilever beams being displaced outward in a radial direction about said longitudinal axis when said cantilever beams are in said second position; e. an interior volume defined by said plurality of cantilever beams in cooperation, said interior volume being disposed along said anchor longitudinal axis between said cantilever beam bottom end and said cantilever beam top end; f. a limiter, said limiter being configured to prevent a movement of said plurality of cantilever beams in said radial direction beyond said second position, said limiter comprising: a ring, each of said cantilever beams having an outer side, said ring encircling said outer side of said plurality of cantilever beams, said ring having an inside diameter, said inside diameter defining said second position of said cantilever beams, said ring being fixedly attached to said outer side of a one of said plurality of cantilever beams, said ring not being fixedly attached to each other of said plurality of cantilever beams, whereby when said anchor bottom end is placed in contact with said sand and said anchor bottom end is driven into said sand, said sand enters said interior volume and applies a force to said inner side of each said cantilever beam and said force urges each said cantilever beam to move elastically and not plastically to said second position, and whereby when said anchor bottom end is removed from said sand and said sand is removed from said interior volume each said cantilever beam resiliently returns to said first position.