Patent ID: 11925838
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC A  B | IPC A  B

Claim 4:
5. A play ball comprising a resiliently flexible elastomeric shell having a filling of resilient foam with an entire outer peripheral surface thereof intimately attached to an entire interior surface of the shell; wherein the play ball is a tennis ball, and the entire outer peripheral surface of the foam filling fuses and adheres to the entire interior surface of the shell to provide at least part of the attachment, the elastomeric shell has a rubber wall having a thickness of 2 mm to 4 mm and the peripheral surface of the shell is wrapped by a bipartite, felt cover having a thickness of between 50% and 100% of the thickness of the rubber wall of the shell and with an elongate seam extending between adjacent respective edge portions of the respective parts which are sealed together by an overlying ribbon under tension.