发明授权
US06955185B2 High volume dispense head with seal verification and low foam return line
有权
大容量分配头具有密封验证和低泡沫回流管线
- 专利标题: High volume dispense head with seal verification and low foam return line
- 专利标题(中): 大容量分配头具有密封验证和低泡沫回流管线
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申请号: US10194982申请日: 2002-07-11
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公开(公告)号: US06955185B2公开(公告)日: 2005-10-18
- 发明人: Barry L. Rauworth , John M. Hennen
- 申请人: Barry L. Rauworth , John M. Hennen
- 申请人地址: US MN Chaska
- 专利权人: Entegris, Inc.
- 当前专利权人: Entegris, Inc.
- 当前专利权人地址: US MN Chaska
- 代理机构: Patterson, Thuente, Skaar & Christensen, P.A.
- 主分类号: B67D7/78
- IPC分类号: B67D7/78 ; B05C11/10 ; B67D7/02 ; F16L37/40 ; B67D5/60
摘要:
A fluid dispensing system for use with a drum with a bung, and a drum insert that includes a downtube that inserts into the bung. A dispense head has provision for a return flow line that discharges recirculated fluid into the annular space around the drum insert downtube. A foaming reduction device minimizes foam created from the recirculation. The invention includes a spring-loaded poppet that closes when the dispense head is removed from the bung opening. The poppet is configured such that the engagement member is a ring shaped with support members extending axially. The engagement member seats on and couples with a nipple on the drum insert.The nipple has a seating portion to engage the engagement member of the poppet. The invention also includes a seal verification conduit in fluid communication with a space intermediate two seals at a junction between the dispense head and the drum insert.
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