Gymnastic tool, apparatus and method to carry out it

• US 8,944,962 B2
• Filed: 07/27/2010
• Issued: 02/03/2015
• Est. Priority Date: 07/28/2009
• Status: Active Grant

• Current Assignee: Trial Company Incorporated (Trial Holdings, Inc.)
• Original Assignee: Trial Company Incorporated (Trial Holdings, Inc.)
• Inventors: Montanari, Giovanni
• Primary Examiner(s): C., S.
• Assistant Examiner(s): ATKINSON, GARRETT K
• Application Number:
  US13/383,799
• Publication Number:
  US 20120129657A1
• Time in Patent Office: 1,652 Days
• Field of Search: 483/23, 483 44- 50, 483/92, 483/111, 483/112, 483/131, 483/142, 473/569, 473/593, 473595-599, 473/603, 473/604, 473/609, 473/610, 473/611, 473/614, D21/707, D21/712, D21/713
• US Class Current: 482/23
• CPC Class Codes: A63B 21/0004 Exercising devices moving as a whole during exercise bar bells or dumb bells A63B21/072; on wheels A63B22/20
• CPC Class Codes: A63B 2225/62 Inflatable
• CPC Class Codes: A63B 41/085 Closures
• CPC Class Codes: A63B 41/125 Large inflatable balls primarily used as body supports for exercising, e.g. balancing
• CPC Class Codes: A63B 43/002 with special configuration, e.g. non-spherical discs for throwing A63B65/10
• CPC Class Codes: A63B 43/04 with an eccentric centre of gravity; with mechanism for changing the centre of gravity solid balls A63B37/10
• CPC Class Codes: A63B 45/02 Marking of balls
• CPC Class Codes: B29C 41/04 Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
• CPC Class Codes: B29C 41/20 incorporating preformed parts or layers, e.g. moulding inserts or for coating articles
• CPC Class Codes: B29D 22/00 Producing hollow articles tubular articles B29D23/00; pneumatic tyres B29D30/00
• CPC Class Codes: B29L 2031/52 Sports equipment ; Games; Articles for amusement; Toys B29L2031/54 takes precedence

Abstract

A gymnastic tool (1) is formed by at least two impermeable external walls (2, 3) which are each concave shaped and provided with respective edges (4,5). The at least two impermeable walls (2, 3) are mutually fixed together by a connector (6), the gymnastic tool having at least one inner cavity.

Claims

1. A unitary gymnastic tool consisting essentially of:

at least two interior chambers, a first chamber defined by a first impermeable external wall, and a second chamber defined by a second impermeable external wall;

the first and second external walls having facing edges, a planar connecting wall disposed between the facing edges;

the planar connecting wall fixing the respective edges together so as to make the external walls inseparable, the fixed first impermeable external wall and second external wall forming the unitary gymnastic tool, and,

wherein at least the first impermeable exterior wall is in the form of a truncated sphere having a circumferential angle greater than 180° and

less than 360°

; and

wherein the planar connecting wall is a planar impermeable separator which separates the first chamber from the second chamber; and

further comprising at least two valves, each valve mounted to a respective external wall for admitting a fluid to each of the two separated chambers.

2. The unitary gymnastic tool according to claim 1 wherein the planar connecting wall and the edges of the two impermeable external walls have a circular, elliptical, oval or smoothed triangle shape.

3. The unitary gymnastic tool according to claim 1 wherein at least one of the impermeable external walls is made of flexible or resilient material.

4. The unitary gymnastic tool according to claim 1 wherein the planar connecting wall is at least partially flexible or rigid.

5. The unitary gymnastic tool according to the claim 1 wherein at least one chamber thereof is under a predetermined pressure greater than a pressure of the environment.

6. The unitary gymnastic tool according to claim 1 wherein the second external impermeable wall is shaped to have protruding meridian lobes.

7. The unitary gymnastic tool according to claim 1 wherein the second external impermeable wall is shaped to have protruding parallel lobes, each lobe being an annular portion of a torus.

8. The unitary gymnastic tool according to claim 1 wherein the two impermeable external walls have substantially identical shapes.

9. The unitary gymnastic tool according to claim 1 wherein the second impermeable external wall has a shape different from the first impermeable external wall shape.

10. The unitary gymnastic tool according to claim 1 wherein the second impermeable external wall is shaped to have protruding meridian lobes.

11. The unitary gymnastic tool according to claim 1 wherein the second impermeable external wall is shaped to have protruding parallel lobes.