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专利名称：Methods and apparatuses for joining a
pumping cartridge to a pump drive
发明人：Timothy E. Moutafis,Edward J. Bromander申请号：US12074294申请日：20080303
公开号：US20080195058A1公开日：20080814
专利附图：
摘要：Apparatus and methods of their use are described for engaging a pumpingcartridge with a pump drive. In certain embodiments, the cartridge, comprising a cylinderand a movable piston assembly, is initially assembled or subsequently positioned so that
the distance between the attachment point on the piston assembly for coupling to adrive assembly, and a reference point on the cylinder, is greater than the maximaldistance that will be encountered during normal oscillation of the piston during use. Thecartridge, in certain embodiments may be pressed into a drive assembly having means forimmobilizing the cartridge and means for coupling the piston assembly to the driveshaft.In certain embodiments, when the cartridge is fully inserted into the drive assembly, thepiston is pressed into the cylinder sufficiently to establish a selected distance so that thepiston shaft is in the proper position to engage with a coupling mechanism carried on thedriveshaft.
申请人：Timothy E. Moutafis,Edward J. Bromander
地址：Gloucester MA US,Tewksbury MA US
国籍：US,US
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