Tether ball

• US 3,397,887 A
• Filed: 10/10/1963
• Issued: 08/20/1968
• Est. Priority Date: 10/10/1963
• Status: Expired due to Term

• Current Assignee: David M. Caplan
• Original Assignee: David M. Caplan
• Inventors: Caplan, David M.
• Application Number:
  US04/315,203
• Time in Patent Office: 1,776 Days
• US Class Current: 473/575
• CPC Class Codes: A63B 43/007 Arrangements on balls for connecting lines or cords
• CPC Class Codes: B29D 22/04 Spherical articles, e.g. balls B29D22/02 takes precedence
• CPC Class Codes: B29K 2009/00 Use of rubber derived from conjugated dienes, as moulding material
• CPC Class Codes: B29K 2027/06 PVC, i.e. polyvinylchloride
• CPC Class Codes: Y10S 116/09 Balloons

Claims

1. A TETHERBALL COMPRISING:

A SPHERICAL BODY PORTION OF A FUSED POLYVINYL CHLORIDE MATERIAL, A TETHER HANGER EXTENDING SIGNIFICANTLY BEYOND THE SURFACE OF SAID SPHERICAL BODY PORTION INCLUDING A LOOP PORTION AND A FLANGE PORTION, SAID LOOP PORTION MERGING INTO SAID FLANGE PORTION AND SAID FLANGE PORTION EXTENDING BEYOND THE BASE OF THE LOOP PORTION, THE HANGER COMPRISING A BLEND OF CARBON BLACK REINFORCED NITRILE RUBBER AND POLYVINYL CHLORIDE RESIN HAVING A GREATER TENSILE STRENGTH THAN THE TENSILE STRENGTH OF SAID POLYVINYL CHLORIDE SPHERICAL BODY PORTION AND THE HANGER BEING MOUNTED TO THE SPHERICAL BODY PORTION OF THE TETHERBALL BY MEANS OF A STRONG CHEMICAL AND FUSION BOND SECURING THE FLANGE PORTION TO THE SPHERICAL BODY PORTION, SAID FLANGE PORTION THEREBY DISTRIBUTING THE TETHERING STRESS OVER A RELATIVELY LARGE CIRCULAR AREA OF SAID SPHERICAL BODY PORTION, AND A VALVE MEMBER INTEGRALLY MOUNTED TO THE BODY PORTION OF THE TETHERBALL FOR INFLATING SAID TETHERBALL.