Patent ID: 6877240
Filing Date: 2005-04-12
Classification: A63B

Abstract:
1. An indicator device for indicating correct and incorrect head positions of a person's head, comprising: a base which fits onto the person's head, the base having a shape which adapts to a contour of the person's head; a housing attached to the base, the housing comprising a top wall, a sloped bottom wall and a side wall, at least a portion of the bottom wall being generally conically shaped, and comprising a first end and a second end, the first end being situated at an indentation formed in the bottom wall and the first end being at a lower position than the second end, the second end being at the perimeter of the bottom wall, the first end being situated at a distance from the perimeter; an indicator body enclosed and retained in the housing, the indicator body being moveable in a plurality of directions from a start position, the start position of the indicator body corresponding to the correct head position of the person's head, wherein the start position is lower than the perimeter and is located at the first end, and wherein the surface area of the indentation is not more than slightly larger than a portion of surface area of the indicator body that is beneath a top of the indentation as measured when the indicator body is touching a bottom of the indentation; the housing being at least partially filled with and retaining a fluid with a higher viscosity than air; and wherein when the person's head is deviated from the correct head position to the incorrect head position, the indicator body is deviated in a direction corresponding to a direction from the correct head position to the incorrect head position of the person's head, and the indicator body moves from the start position to one of the plurality of directions and strikes the side wall of the housing causing an audible signal to indicate the incorrect head position.