Tennis Backboard for Excellent Rebound and Low Noise

• US 20150190701A1
• Filed: 01/09/2014
• Published: 07/09/2015
• Est. Priority Date: 01/09/2014
• Status: Active Grant

• Current Assignee: Sai Karthik Annapragada, Venkateswara Rao Annapragada
• Original Assignee: Sai Karthik Annapragada, Venkateswara Rao Annapragada
• Inventors: Annapragada, Venkateswara Rao, Annapragada, Sai Karthik
• Granted Patent: US 9,302,166 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A63B 2102/02 Tennis
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 69/0097 Ball rebound walls with holes or in combination with nets A63B63/00

Abstract

A tennis practice device that has a rebound surface made out of composite material consisting of cement, ground calcium silica, cellulose fibers, wood fibers and other select additives such as fly ash and a sound dampening material sandwiched between the rebound surface and the support structure.

Claims

1. A tennis practice device that is made out of a rebound surface made out of a composite material consisting of cement, ground calcium silica, cellulose fibers, wood fibers and other select additives such as fly ash to enable excellent tennis ball rebound with low noise while being long lasting and economical.

2. A tennis practice device with a sound dampening device made out of soft rubber such as neoprene, EPDM or soft plastic material such as soft poly vinyl chloride, soft polyurethane, soft polyethylene or other suitable soft foam plastic or rubber material and is inserted between the tennis ball rebound panel and the support structure. The sound dampening device combines shock absorption, vibration damping and vibration isolation. The use of sound dampening device reduces sound even for the rebound surfaces made out of wood, plywood, oriented strand boards and plastic rebound panels in addition to the composite material consisting of cement, ground calcium silica, cellulose fibers, wood fibers and other select additives such as fly ash described in the present disclosure. In addition, the sound dampening material being soft enables differential tightening of the fasteners to make the sections flush with each other and make the rebound surface planar without any ridges.