1
Hayden L Leason: Process for making hermetically sealed filter units and filters made thereby. Filtertek, Hume Clement Brinks Willian & Olds, September 12, 1978: US04113627 (131 worldwide citation)

A process for the manufacture of intravenous solution filter units includes injection molding a sealing member onto the periphery of the assembled filter components to hermetically seal the components into an integral assembly. The filter unit itself includes a housing and a filter element disposed ...


2
Hayden L Leason: Process and apparatus for sealing a plurality of filter elements. Filtertek, Hume Clement Brinks Willian & Olds, November 8, 1983: US04414172 (88 worldwide citation)

The present invention relates to a process and apparatus for making sealed filter units which include a plurality of filter elements. The apparatus includes a lower mold half for supporting a filter element support and a retractable locater member. The retractable locater member includes a reduced c ...


3
Hayden L Leason: Inlet blood filter assembly. Filtertek, Willian Brinks Olds Hofer Gilson & Lione, October 15, 1985: US04547190 (5 worldwide citation)

The present invention relates to an inlet blood filter assembly. The inlet blood filter assembly includes a drip chamber, filter chamber and pump chamber. The assembly is constructed so that blood flows through the drip chamber, into the filter chamber and into the pump chamber. The inlet blood filt ...