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US 6,309,155 B1Granted
Expanding sleeve anchor used in a concrete wall and structure for enhancing the anchoring capability thereof
AssigneeJoker Industrial Co., Ltd.
InventorPan Ching Huang
Life of this patent
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Abstract
An expanding sleeve anchor structure includes a nail base tube cooperating with a tapered spreading member. The nail base tube has an upper section provided with a plurality of separating lines each having an elongated transverse hollow slot substantially centered thereon which is used for reducing the stress concentration of the upper section of the nail base tube when the upper section of the nail base tube is forced to expand outward resulting in complete expansion.
Claims3
An expanding sleeve anchor structure comprising:
- an elongated, hollow nail base tube for use with a tapered spreading member;
- said nail base tube being divided into an expanding region and a non-expanding region;
- said expanding region having one end defined by an end of said nail base tube and at an opposing end terminating at a portion of said nail base tube having at least one recessed rib;
- said expanding region being provided with a plurality of longitudinal separating lines;
- each of said separating lines provided with an elongated transverse hollow slot substantially centrally located thereon.
2 more elements
Dependencies are inferred from the claim text.