发明名称 |
DISPENSING DEVICE FOR VISCOUS MATERIALS |
摘要 |
A dispenser for viscous materials has a housing with a moveable wall that divides the interior volume of the housing into a distal product chamber and a proximal pressure chamber. An outlet from the product chamber is located adjacent to the distal end of the housing and an air inlet is provided to allow air to enter the pressure chamber. Displacement of the product occurs when accumulated excess air pressure in the pressure chamber acts on the back of the movable wall. The excess air pressure is built up by a bellows assembly arranged in fluid communication with the pressure chamber. On actuation, the bellows can be reduced in volume and subsequently recover by entry of air through the inlet. The direction of force application is preferably perpendicular to the housing axis and the location of the bellows is preferably distant from the product outlet.
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申请公布号 |
US2010155431(A1) |
申请公布日期 |
2010.06.24 |
申请号 |
US20090641808 |
申请日期 |
2009.12.18 |
申请人 |
BARTOLUCCI STEFANO;HOEFTE PAULUS;LAMB JOHN DAVID;SCOTT PAUL ROBERT;VANDECAPPELLE PEDRO VINCENT |
发明人 |
BARTOLUCCI STEFANO;HOEFTE PAULUS;LAMB JOHN DAVID;SCOTT PAUL ROBERT;VANDECAPPELLE PEDRO VINCENT |
分类号 |
B67D7/06 |
主分类号 |
B67D7/06 |
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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