Patent ID: 6912968
Filing Date: 2005-07-05
Classification: F24F,G09F,Y10S

Abstract:
1. A schedule indicator comprising, a base having at least one protrusion and a top surface with a first index indicia thereon; a rotatable first condition indicating ring having a bottom surface with an annular array of first depressions sized and shaped to rotatably engage and disengage said base protrusion, and a top surface with an annular array of second depressions, said indicating ring also including an annular array of timing indicia upon said top surface, said timing indicia being alignable with said base index indicia to indicate the timing of a first timed event; a rotatable second condition indicating member positioned concentrically within said first condition indicating ring, said second condition indicating member having at least one protrusion sized and shaped to rotatably engage and disengage said first condition indicating ring second depressions, said second condition indicating member having a second index indicia thereon alignable with said indicating ring annular array of timing indicia to indicate the timing of a second timed event; and means for coupling said indicating ring and said indicating member to said base to allow rotatably movement between said base and said first condition indicating ring and between said first condition indicating ring and said second condition indicating member, whereby manual rotation of the indicating member causes the indicating member protrusion to disengage from the indicating rind second depression and ride upon the top surface of the indicating ring between adjacent second depressions so as to cause a downward force upon the indicating ring which ensures that the base protrusion is maintained within the indicating ring first depression to prevent rotation of the indicating ring relative to the base, and whereby manual rotation of the indicating ring causes the base protrusion to be disengaged from the indicating ring first depression and ride upon the bottom surface of the indicating ring between adjacent first depressions causing the indicating ring to move away from the base thereby forcing the indicating member protrusion into engagement with the indicating ring second depression which ensures that the indicating member rotates in conjunction with the rotation of the indicating ring.