专利内容由知识产权出版社提供
专利名称：Sliding piston pump, especially for
vapourizers
发明人：Michel Boris申请号：US05/451918申请日：19740318公开号：US03954354A公开日：19760504
摘要：A pump primarily intended for incorporation in a dip-tube sprayer includes ahollow piston slidable in a cylinder which communicates with an outlet tube. The pistondefines a seat for a valve which in the inoperative condition prevents communicationbetween the cylinder and the outlet or delivery tube. The piston has the form of ashallow cup and is not totally covered by the valve when seated. One or more bleeds areprovided in the part of the piston covered by the valve.
申请人：SOCIETE TECHNIQUE DE PULVERISATION
代理机构：Eyre, Mann, Lucas & Just
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