Patent ID: 6196153
Filing Date: 2001-03-06
Classification: A63B

Abstract:
A marker suitable for use in a golf fairway comprising:a base portion suitable for installation in a ground hole so that an upper end of said base portion is below ground level,a hollow upper body portion fixed to the upper end of said base portion, said upper body portion including a dome formed of resilient material and having a normal, unstressed raised condition in which it protrudes above the said ground level to be readily visible to golfers, and having a depressed condition in which it is close to said ground level and in which the material is stressed such that it tends to move to the normal, raised condition,and motion control means for delaying movement of the dome from the depressed condition to the raised condition;and wherein said motion control means includes a partition which defines a generally closed chamber beneath the dome; and wherein the motion control means includes one-way valve means which allows air to be rapidly expelled from the chamber when the dome is depressed but restricts air flow into the chamber to delay recovery from the depressed condition.