发明名称 |
Injection moldable plastic laps |
摘要 |
A lap used for the grinding, fining and polishing of glass and plastic lenses is constructed of a one-piece injection-molded reinforced polymer body. The front surface of the lap is curved and adapted to receive an abrasive pad. The rear of the lap has a skeletal rib structure of projecting interconnected ribs. Polymers suitable for forming the lap include various crystalline polymers and copolymers having adequate chemical resistance, strength, rigidity and thermal resistance.
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申请公布号 |
US5157880(A) |
申请公布日期 |
1992.10.27 |
申请号 |
US19910724503 |
申请日期 |
1991.06.28 |
申请人 |
COBURN OPTICAL INDUSTRIES |
发明人 |
ROTENBERG, DON H.;WHITMARSH, MILTON F. |
分类号 |
B24B13/01 |
主分类号 |
B24B13/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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