Patent ID: 6807987
Filing Date: 2004-10-26
Classification: F16L

Abstract:
A location marker, comprising:a marker housing having a plate-like body, a hollow protuberance projecting from one side of said plate-like body, the interior of said protuberance being closed at a first end by a first end wall, a second end wall being configured to close said hollow interior at a second end thereof, said hollow interior between said first and second end walls and interior walls of said hollow interior defining a magnet holding cavity; a pot magnet oriented in said magnet holding cavity, a side of said pot magnet facing said first end wall being configured as a magnetic pole surface; wherein the distance between said first and second end walls is less than a dimension of said pot magnet that is parallel to said magnetic pole surface; wherein said plate-like body includes an annular skirt protecting from a side thereof remote from said protuberance; and wherein said plate-like body, said protuberance, said first end wall and said annular skirt are of a unitary construction, said second wall having a peripheral shape and dimension conforming to a peripheral shape and dimension of said hollow interior and is configured to be adhesively secured to said plate-like body.