Refillable dumbbell and bottle holding device for forming a refillable dumbbell in conjunction with a bottle

A bottle holding device for forming a refillable dumbbell in conjunction with a bottle of the type including a main body portion which is closed at a bottom thereof and which tapers at an upper portion thereof to a reduced diameter neck having a reclosable bottle opening, the bottle extending along an axial direction thereof, said bottle holding device comprising:

• upper bottle engaging means for engaging the tapered upper portion of the bottle,
• an upper lateral extension which extends outwardly from said upper bottle engaging means,
• lower bottle engaging means for engaging the bottom of the bottle,
• a lower lateral extension which extends outwardly from said lower bottle engaging means, and
• adjustable tensioning handle means for:
• pulling said upper bottle engaging means and said lower bottle engaging means toward each other with an adjustable force after said bottle holding device is assembled with the bottle, to tightly grip the bottle therebetween to permit movement during a dumbbell exercise, and
• enabling a person to grasp said tensioning handle means between said upper engaging means and said lower bottle engaging means to perform dumbbell exercises,
• said adjustable tensioning handle means including:
• a handle tightened between said lower lateral extension and said upper lateral extension so as to pull said lower and upper lateral extensions toward each other when said bottle holding device is assembled with the bottle, and thereby, to pull said upper bottle engaging means and lower bottle engaging means toward each other when said bottle holding device is assembled with the bottle so as to tightly grip the bottle therebetween, said handle extending substantially parallel to be axial direction of the bottle and including at least one end with threads thereon,
• a handle opening in at least one of said upper and lower lateral extensions for receipt of an end of said handle therein, with the handle extending out of each opening, and
• a locking nut releasably engaged with each end of said handle extending out of a respective said handle opening, for tightening said extending ends of said handle as to the respective lateral extension so as to pull said upper and lower bottle engaging means toward each other when said bottle holding device is assembled with the bottle so as to tightly grip the bottle therebetween;
• said adjustable tensioning handle means being fixed in position and immovable with respect to said upper bottle engaging means and said lower bottle engaging means when said bottle holding device is assembled with the bottle, and when a person grasps the adjustable tensioning handle means and performs a dumbbell exercise.