Fixed dumbbell

• US 20040162196A1
• Filed: 02/10/2004
• Published: 08/19/2004
• Est. Priority Date: 02/11/2003
• Status: Abandoned Application

• Current Assignee: Karl Degroot
• Original Assignee: Karl Degroot
• Inventors: deGroot, Karl
• Application Number:
  US10/774,482
• Publication Number:
  US 20040162196A1
• Time in Patent Office: Days
• US Class Current: 482/106
• CPC Class Codes: A63B 21/0726 Dumb bells, i.e. with a central bar to be held by a single hand, and with weights at the ends
• CPC Class Codes: A63B 21/0728 with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells

Abstract

The present invention is a dumbbell having superior strength and durability. The dumbbell consists of a pair of end caps (weights) positioned on either end of a handle. The handle has an elongated central portion with opposite first and second ends. First and second flanges are formed on the first and second ends of the central portion, respectively. First and second weights (end caps) are attached to the first and second flanges, respectively. The first weight has a recess which is dimensioned and configured to receive the first flange. Likewise, the second weight has a recess which is dimensioned and configured to receive the second flange. Each flange has a peripheral edge and is attached to its respective weight by a plurality of bolts positioned adjacent the peripheral edge.

Claims

1. A dumbbell comprising:

an handle having an elongated central portion with opposite first and second ends,

a first flange formed on the first end and a second flange formed on the second end,

a first weight attached to the first flange, said first weigh having a first recess, said first recess dimensioned and configured to receive the first flange, and

a second weight attached to the second flange, said second weight having a second recess, said second recess dimensioned and configured to receive the second flange.

2. The dumbbell of claim 1 wherein each flange has a peripheral edge and wherein each flange is attached to its respective weight by a plurality of bolts positioned along the peripheral edge.

3. The dumbbell of claim 1 wherein each flange has an outward flat face and wherein each weight has an inner flat wall in the recess, the flat face of each flange abutting the flat wall of its respective weight.

4. The dumbbell of claim 1 wherein each flange has an external rim extending peripherally around the flange and wherein each weight has an internal rim extending peripherally around the recess, the external rim of each flange abutting the internal rim of the flange'"'"'s corresponding weight.

5. The dumbbell of claim 2 wherein each flange has an external rim extending peripherally around the flange and wherein each weight has an internal rim extending peripherally around the recess, the external rim of each flange abutting the internal rim of the flange'"'"'s corresponding weight.

6. The dumbbell of claim 5 wherein each flange has an outward flat face and wherein each weight has an inner flat surface in the recess, the flat face of each flange abutting the flat surface of its respective weight.

7. The dumbbell of claim 6 wherein the central portion, flanges and weights each have a longitudinal axis and wherein they are all coaxially aligned.

8. The dumbbell of claim 7 wherein the external rim of the flanges and the inner rim of the weights extend parallel to the longitudinal axis of the flanges and the weights, respectively.

9. The dumbbell of claim 7 wherein the flat face of each flange and the flat surface of each weight is perpendicular to the longitudinal axis of the flanges and the weights, respectively.

10. A dumbbell comprising:

an handle having a substantially cylindrical central portion having a longitudinal axis and opposite first and second ends,

opposite first and second flanges formed on the first and second ends of the handle, respectively, said flanges each extending perpendicularly from the central portion, each flange having a diameter, a thickness and a peripheral edge,

opposite first and second weights attached to the first and second flanges, respectively, each weight having a recess, each said recess having a diameter and a depth corresponding to the diameter and the thickness of the respective flange, respectively, the flange being retained in the recess,

each flange being secured to its respective weight by a plurality of bolts positioned along the flange adjacent the flange'"'"'s peripheral edge.

11. The dumbbell of claim 10 wherein each flange has an outward flat face and wherein each weight has an inner flat surface in the recess, the flat face of each flange abutting the flat surface of its respective weight.

12. The dumbbell of claim 10 wherein each flange has an external rim extending peripherally around the flange and wherein each weight has an internal rim extending peripherally around the recess, the external rim of each flange abutting the internal rim of the flange'"'"'s corresponding weight.

13. The dumbbell of claim 11 wherein each flange has an external rim extending peripherally around the flange and wherein each weight has an internal rim extending peripherally around the recess, the external rim of each flange abutting the internal rim of the flange'"'"'s corresponding weight.

14. The dumbbell of claim 13 wherein the central portion, flanges and weights each have a longitudinal axis and wherein they are all coaxially aligned.

15. The dumbbell of claim 14 wherein the external rim of the flanges and the inner rim of the weights extend parallel to the longitudinal axis of the flanges and the weights, respectively.

16. The dumbbell of claim 14 wherein the flat face of each flange and the flat surface of each weight is perpendicular to the longitudinal axis of the flanges and the weights, respectively.

17. The dumbbell of claim 15 wherein the flat face of each flange and the flat surface of each weight is perpendicular to the longitudinal axis of the flanges and the weights, respectively.

18. A dumbbell comprising:

a handle having an substantially cylindrical central portion having opposite first and second ends,

opposite first and second flanges formed on the first and second ends of the handle, respectively, said flanges each extending perpendicularly from the central portion, each flange having a diameter, a thickness, an outwardly facing flat surface, a peripheral edge and a rim adjacent the peripheral edge,

opposite first and second weights attached to the first and second flanges, respectively, each weight having a recess, each said recess having a diameter, a depth, an inner flat surface, and an internal rim extending peripherally around the inner flat surface, the diameter and depth of the recesses corresponding to the diameter and the thickness of the respective flange,

each flange being retained in the recess of its corresponding weight with the outwardly facing flat surface of each flange abutting the inner flat surface of the corresponding weight and the rim of the flange abutting the internal rim of the corresponding weight.

each flange being secured to its respective weight by a plurality of bolts positioned along the flange adjacent the flange'"'"'s peripheral edge.

19. The dumbbell of claim 18 wherein the internal rim of the weights and the rim of the flanges are perpendicular to the inner flat surface of the weights and the outwardly facing flat surface of the flanges, respectively.

20. The dumbbell of claim 19 wherein the flanges, weights and the central portion are all coaxially aligned.