Kenneth L Powell

US Patent:

56928645, Dec 2, 1997

Filed:

Dec 21, 1995

Appl. No.:

8/576302

Inventors:

Kenneth Simpson Powell - Lilburn GA
Causie C. Crane - Loganville GA

Assignee:

K & R Industries, Inc. - Lawrenceville GA

International Classification:

F16B 1304

US Classification:

411 30

Abstract:

The present invention discloses a self-tapping anchor and a method of installing the anchor into a wall. The anchor includes a flange portion, a drill end portion, and an intermediate shank portion. The intermediate shank portion has a central bore therein for receiving a fastener. An external thread is formed on the shank portion for threading the anchor into the wall. The shank portion is divided by a slot into a pair of leg portions and the external thread is divided into a plurality of discrete thread segments. The drill end portion supports the leg portions to prevent relative twisting therebetween during anchor installation into a wall. A reduced thickness web portion, or alternatively, a through slot, is formed in the drill end portion. When the threaded fastener is threaded into the central bore, the fastener causes the drill end portion to split apart releasing the leg portions so that the leg portions diverge to provide better anchor securement to the wall.

US Patent:

57786232, Jul 14, 1998

Filed:

Feb 3, 1997

Appl. No.:

8/794179

Inventors:

Kenneth S. Powell - Lilburn GA

Assignee:

K & R Industries, Inc. - Lawrenceville GA

International Classification:

E04B 500

US Classification:

52410

Abstract:

The present invention provides a roofing fastener, a roofing assembly including the roofing fastener, and a method of installing the roofing fastener into the roofing assembly. The roofing fastener includes a head and a shank integrally connected thereto. The shank and the thread thereon permits the roofing fastener to be self-tapping and threaded into a base substrate such as a concrete deck. Preferably, the roofing fastener includes a polygonal socket within nubbins thereon to squeeze about a drill bit. Also, ideally the head of the roofing fastener is round and has a diameter which is greater than the length of the shank. Ideally, the fastener is made of a low-moisture material which can absorb water from the surrounding substrate causing the fastener to swell and increase its holding power.