公开(公告)号：US1599517A

公开(公告)日：1926-09-14

申请号：US10572326

申请日：1926-04-30

Applicant: DAVID A POLLOCK

Inventor： MARCUS FORSYTHE BILL

IPC: F26B9/10 ,  F26B21/00

CPC classification number: F26B21/00 ,  F26B9/103 ,  F26B2210/16

公开(公告)号：US5575875A

公开(公告)日：1996-11-19

申请号：US201199

申请日：1994-02-24

Applicant: David L. Brittingham ,  David W. Repetto ,  David A. Pollock

Inventor： David L. Brittingham ,  David W. Repetto ,  David A. Pollock

IPC: A63B49/10 ,  B29C53/58 ,  B29C70/16 ,  B29C70/20 ,  B29C70/44 ,  B29D99/00 ,  B29K101/12 ,  B29K201/00 ,  B29L31/52 ,  B65H81/00

CPC classification number: B29D99/0003 ,  A63B49/10 ,  B29C70/207 ,  B29C70/446 ,  A63B60/14 ,  B29C53/58 ,  B29K2101/12 ,  B29K2105/25 ,  B29L2031/5245

Abstract: A frame for a game racquet such as a tennis racquet is formed by helically winding a tow of filament material and thermoplastic material over an elongated mandrel to form a tube. The tube is positioned in a mold having the shape of a game racquet frame and auxiliary pieces for handle and yoke sections are added. This preform is heated to melt the thermoplastic while the interior of the tube is pressurized. The preform is then allowed to cool and harden to form the game racquet frame.

Abstract translation: 用于诸如网球拍的游戏球拍的框架通过在细长的心轴上螺旋缠绕细丝材料和热塑性材料的丝束来形成管。 该管被定位在具有游戏球拍框架的形状的模具中，并且添加了用于手柄和轭部的辅助件。 加热该预型件以熔化热塑性塑料，同时将管的内部加压。 然后使预成型件冷却并硬化以形成游戏球拍框架。