Okabe Company, Inc.

Iwai Industry Co., Ltd.

Mikihiko Yoshida

Hiroaki Yamada

Hideo Iwai

Yoshiyuki Okayasu

Michiharu Obata

A nail remover according to the present invention includes a tool head having a guide bore extending linearly through the head in a longitudinal direction, a push-rod slidably mounted in the guide bore of the head between a retracted position at which a free end of the push-rod is located in the guide bore and an extended position at which the free end of the push-rod protrudes from the guide bore, a driving device for advancing the push-rod from the retracted position to the extended position, and an actuator for activating the driving device. At least a portion of the peripheral wall defining an outlet of the guide bore is tapered toward an outboard edge of the wall so as to make it easy to introduce a nail into the guide bore. In operation, the guide bore receives the portion of a nail protruding from a plate such as a piece of plywood. Then the nail is straightened by aligning the guide bore with the axis of the nail and, thereafter, the push-rod is driven towards the extended position so as to drive the nail out of the plate.

Nail remover

A welding accessory which includes an arc shield having outer and inner peripheral surfaces such that a weld can be formed within the inner peripheral surface as the arc shield shields the weld form external air during forming of the weld. The arc shield includes a ceramic material having not less than 40 weight % of boron nitride. The arc shield may be formed of a composite of boron nitride and silicon nitride, a composite of boron nitride and alumina nitride, a composite of boron nitride, aluminum and silicon nitride, or a composite of boron nitride and zirconia.

Reusable stud welding ferrule containing boron nitride

An arc stud welding machine having an arc shield mount section for retaining a generally semicylindrical arc shield segment. The arc shield mount section has a semicylindrical inner clamp member for abutment against an inner surface of said arc shield segment, two quarter cylinder outer clamp members for abutment against an outer surface of said arc shield segment, and pressure screws for applying pressure in the direction of said arc shield segment to said outer clamp members at approximately the middle of the periphery thereof.

Growing community of inventors

Ibaragi, Japan

Mikihiko Yoshida