发明授权
- 专利标题: Metal tennis racket with plastic throat piece and molded plastic handle
- 专利标题(中): 金属地板与塑料薄膜和模塑塑料手柄
-
申请号: US3702701D申请日: 1969-08-28
-
公开(公告)号: US3702701A公开(公告)日: 1972-11-14
- 发明人: VAUGHN GEORGE A , HARGRAVE RICHARD D
- 申请人: MAARK CORP
- 专利权人: Maark Corp
- 当前专利权人: Maark Corp
- 优先权: US85367669 1969-08-28
- 主分类号: A63B49/00
- IPC分类号: A63B49/00 ; A63B49/02 ; A63B49/08 ; A63B49/12 ; A63B51/00
摘要:
THE METAL RACKET IS MADE FROM AN EXTRUDED ALUMINUM STRIP COMPRISING A PAIR OF OPPOSED TUBULAR SECTIONS CONNECTED BY A WEB, WITH A STRENGTH FACTOR OF 1YS/A IN THE RANGE OF 0.0516YS TO 0.0580YS. THE METAL STRIP HAS A FIRST CHANNEL IN ITS OUTER PERIPHERY AND A SECOND CHANNEL IN ITS INNER PERIPHERY. A PLASTIC THROAT PIECE IS PROVIDED WITH OUTER SURFACES SHAPED COMPLEMENTARILY TO THE CONFIGURATION OF THE INNER PERIPHERY OF THE METAL STRIP. THE RACKET FURTHER HAVING A SOLID MOLDED PLASTIC HANDLE MADE OF A FOAMED PLASTIC MATERIAL MOLDED TO THE LOWER EXTERMITIES OF THE METAL STRIP.
信息查询