Thermoplastic injection molding method for capping a tubular...

Details Thermoplastic injection molding method for capping a tubular... Thermoplastic injection molding method for capping a tubular...

2005-12-01

2010-11-09

Menon, Krishnan S (Department: 1797)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C264SDIG048, C264S271100, C264S275000, C264S279000, C055SDIG007, C055S521000, C210S321860

Reexamination Certificate

active

07828155

ABSTRACT:
A method for over-molding a tubular filter element16, at least at one end16bthereof, with a thermoplastic end cap12. The over-molding method can be used to manufacture easily and cost-effectively a filter cartridge, of good durability, from an unprecedented range of polymeric materials and components. The thermoplastic over-molding method does not require pre-lamination of said end16b, and can be performed at temperatures and pressures that do not result in undesirable morphological changes in the tubular filtration medium. Exemplary filter cartridges made through the over-molding method comprise a tubular filtration medium interposed between thermoplastic end caps, the thermoplastic material of the end caps infiltrating the tubular filtration medium, thereby creating mechanical interlock zones at the ends thereof.

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