Marker member

Abstract

Abstract A marker tape for marking the positions of structural members behind wall panels comprises an elongated flexible carrier having incorporated therein, a reaction-responding material which can be detected by detectors operating on magnetic, electromagnetic, sonic, or some other phenomenon to indicate the positions of the structural members. One form of the marker tape comprises a flexible carrier supporting, on one or both sides thereof, a layer of adhesive, one of the adhesive layers having incorporated therein, granules of reaction-responding material, such as ferro-magnetic, ferrite or other metal particles. In order to increase the accuracy of locating the hidden structural members, the marker tape may be provided with the reaction-responding material only in an area centrally located along the width of the tape. In other words, although the flexible carrier extends completely across the width of the structural member, only the central portion of the tape is responsive to magnetic or electromagnetic stimulation. A further embodiment of the marker tape uses a solid layer, such as a film, rather than particles of reaction-responding material. In this case, the film has both sides covered with adhesive layers. Alternatively, the film may have only one side covered with an adhesive layer.

Inventors

• 👤 Arthur G. Kirk

Bibliographic Details