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A magnetic holding device to be mounted to a magnetizable surface. It includes a body and a magnet having a pair of poles. A first and a second pole piece are mounted to the body adjacent to the magnet, each forming a continuation of a respective one of the poles. Each pole piece is a plurality of e

A magnetic holding device to be mounted to a magnetizable surface. It includes a body and a magnet having a pair of poles. A first and a second pole piece are mounted to the body adjacent to the magnet, each forming a continuation of a respective one of the poles. Each pole piece is a plurality of elongated magnetizable members in side to side sliding relationship to one another. They project from the body, and their projection is adjustable and selectable by sliding them. Releasable compression means allows for their relative movement when released, and holds them in an adjusted position when set. As optional features, the pole pieces can be magnetized or not, such as by the use an electromagnet or rotatable magnet, and the compression means may be a cam.

대표청구항 ▼

A magnetic holding device adapted to be mounted to a magnetizable surface, comprising: a body; a magnet having a pair of poles mounted to said body; a first pole piece and a second pole piece mounted to said body adjacent to said magnet, each forming a continuation of a respective one of said poles,

A magnetic holding device adapted to be mounted to a magnetizable surface, comprising: a body; a magnet having a pair of poles mounted to said body; a first pole piece and a second pole piece mounted to said body adjacent to said magnet, each forming a continuation of a respective one of said poles, each pole piece comprising a group of a plurality of elongated magnetizable members in side to side relationship to one another, all of said magnetizable members extending generally parallel to one another, projecting from said body, and being slidable relative to each other and to said body unless the group is compressed to prevent it, whereby to be individually movable to project beyond said body by an adjustable and selectible distance in the absence of such compression; and compression means adapted to compress said group to hold said elongated magnetizable members in an adjusted position until the compression means releases the compression.