United Industries Corporation

David V Heminger

Christopher C Martin

George Hailey

Michael E Berry

David Dorr

Dennis Chadwick

An adhesive insert anchor including an anchor body and a screw member for insertion into a drilled hole in a substrate containing an adhesive. The anchor body further including an integral friction segment and an adhesion segment. The friction segment includes an internally threaded cavity in which to receive the screw member and a knurled portion. The adhesion segment includes a cylindrical section and a plurality of saucer-shaped buttons positioned along its length ending with a terminal button. The buttons on the adhesion segment provide greater surface area for contact between the adhesive and the anchor. The friction segment has an external diameter substantially the same as the diameter of the hole drilled in the substrate, thereby providing a friction fit between the anchor body and the walls of the substrate hole. The external diameter of the adhesion segment is smaller than the external diameter of the friction segment so that when the anchor body is inserted into the hole in the substrate, there is space between the adhesion segment and the walls of the hole which is completely filled by adhesive so as to securely bond the anchor body with the substrate. The friction fit of the friction segment maintains the adhesion segment of the anchor body a proper distance from the bottom of the substrate hole and provides for light-duty loading of the anchor while the adhesive cures. Upon installation, the adhesion segment is twisted into the hole, thereby agitating the adhesive which disrupts the substrate dust remaining on the walls of the hole. This allows proper adhesion between the adhesive and the concrete. With the addition of a sleeve the anchor can be used in overhead applications. An alternate embodiment includes the addition of an insulator fitted to the anchor body to form the friction segment. The insulator being electrically non-conductive and the adhesive being electrically non-conductive to form a dielectric adhesive insert anchor.

Dielectric adhesive insert anchor

An adhesive insert anchor including an anchor body and a screw member for insertion into a drilled hole in a substrate containing an adhesive. The anchor body further including an integral friction segment and an adhesion segment. The friction segment includes an internally threaded cavity in which to receive the screw member and a knurled portion. The adhesion segment includes a cylindrical section and a plurality of saucer-shaped buttons positioned along its length ending with a terminal button. The buttons on the adhesion segment provide greater surface area for contact between the adhesive and the anchor. The friction segment has an external diameter substantially the same as the diameter of the hole drilled in the substrate, thereby providing a friction fit between the anchor body and the walls of the substrate hole. The external diameter of the adhesion segment is smaller than the external diameter of the friction segment so that when the anchor body is inserted into the hole in the substrate, there is space between the adhesion segment and the walls of the hole which is completely filled by adhesive so as to securely bond the anchor body with the substrate. The friction fit of the friction segment maintains the adhesion segment of the anchor body a proper distance from the bottom of the substrate hole and provides for light-duty loading of the anchor while the adhesive cures.

Adhesive insert anchor

A hybrid eccentric wedge anchor includes a cylindrical anchor body, an eccentric wedge unit, and cylindrical leading end. The eccentric wedge unit includes a tapered body, a shoulder between the tapered body and the anchor body, and a crescent shaped clip rotatably positioned around the tapered body. The longitudinal axis of the tapered body is different from the longitudinal axis of the anchor body. The shoulder varies in width around the circumference of the anchor body. As the crescent shaped clip rotates around the tapered body, its outer circumference varies from being flush with the outer circumference of the cylindrical anchor body to extending beyond the outer circumference of the cylindrical anchor body. The hybrid eccentric wedge anchor can be configured in many useful anchor forms having the eccentric wedge unit. Examples include, but are not limited to, expansion bolt or drop-in configurations.

Growing community of inventors

Tulsa, OK, United States of America

David V Heminger