发明授权
- 专利标题: Ball and raceway amusement device
- 专利标题(中): 球和休闲娱乐设备
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申请号: US3702191D申请日: 1971-02-25
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公开(公告)号: US3702191A公开(公告)日: 1972-11-07
- 发明人: ZILIUS TADAS , SIMBOLI JOSEPH
- 申请人: COLUMBIA BROADCASTING SYST INC
- 专利权人: CBS Broadcasting Inc
- 当前专利权人: CBS Broadcasting Inc
- 优先权: US11868771 1971-02-25
- 主分类号: A63F7/00
- IPC分类号: A63F7/00 ; A63B67/14
摘要:
AN AMUSEMENT DEVICE CONSISTING OF A PAN-LIKE PADDLE, CONCAVE ON ONE FACE AND CONVEX ON THE OTHER, PROVIDED WITH AN INTEGRAL RADIALLY EXTENDING HANDLE, BOTH FACES HAVING FORMED THEREON AN INCLINED SPIRAL RACEWAY EXTENDING FROM A POINT AT THE OUTER PERIPHERY THEREOF NEAR THE HANDLE AND TERMINATING IN A BALL-RECEIVING DEPRESSION AT THE CENTER. A BALL OF MARBLE IS CAUSED TO MOVE UP OR DOWN THE RACEWAYS BY PROPERLY TILTING THE PADDLE, GREATER SKILL BEING REQUIRED TO KEEP THE BALL ON THE RACEWAY ON THE CONVEX SIDE THAN ON THE CONCAVE SIDE.
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