发明名称 |
LOW ELECTROSTATIC DISCHARGE CONVEYOR |
摘要 |
A conveyor (20, 120, 220, 320) for transporting objects sensitive to electrostatic discharge. In one embodiment, the present invention relates to a slippable roller conveyor (20, 120, 220, 320) with conductive slippable rollers (30, 30') in electrical communication with an electrical ground (60). The slippable rollers (30, 30') preferably have about 10<5> ohms resistance from the outer surface (40) to the inner diameter (34) to ensure that electrostatic charges built up on the conveyed object can flow to ground, yet not flow too quickly. In another embodiment, the roller shafts (35) are supported on highly conductive bushings that provide a path to electrical ground that is preferably less than 10<4> ohms. In yet another embodiment, the roller shafts (35) are driven by a conductive pulley (65) that minimizes the build-up of electrostatic charge as a result of a triboelectric effect with the drive belt (70).
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申请公布号 |
WO0006470(A2) |
申请公布日期 |
2000.02.10 |
申请号 |
WO1999US17184 |
申请日期 |
1999.07.29 |
申请人 |
SHUTTLEWORTH, INC.;HART, STEVEN, L.;HOWARD, BRENT, R.;DAENZER, KLAUS, P. |
发明人 |
HART, STEVEN, L.;HOWARD, BRENT, R.;DAENZER, KLAUS, P. |
分类号 |
B65G13/071;B65G43/00;B65G47/26;(IPC1-7):B65G/ |
主分类号 |
B65G13/071 |
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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