发明名称 |
Curved teeth for gear pump |
摘要 |
<p>A gear, a gear pump (10) and a method for pumping elastomeric material having two gears with meshing herringbone gear teeth (30) are disclosed. Each of the gear teeth (30) has helical side portions (32) and a curved central portion (34) which extends circumferentially of the gear a distance equal to at least one half the pitch (P) of the gear teeth (30) to provide a continuous squeezing contact between the teeth of the two gears for pumping a uniform strip of elastomeric material from the gear pump (10). <IMAGE></p> |
申请公布号 |
EP1550542(B1) |
申请公布日期 |
2007.06.06 |
申请号 |
EP20040106769 |
申请日期 |
2004.12.21 |
申请人 |
THE GOODYEAR TIRE & RUBBER COMPANY |
发明人 |
NICOLAS, BERNARD;BURG, GARY ROBERT;MARSHALL, MALCOLM GEORGE |
分类号 |
B29C47/52;B29C47/50;B29C47/92;F04C2/08;F04C2/18;F04C13/00;F04C15/00 |
主分类号 |
B29C47/52 |
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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