Capillary connector
October 4, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesChromatographic column with improved end fittings Chromatographic column fittings High pressure tubing coupler Capillary tubing and small rod connector Zero dead volume connector Low pressure fitting Capillary tubing coupler Connector for therapeutic tubing and medical solution bag device using the connector Connection apparatus Direct sealing coupling InventorAssigneeApplicationNo. 317966 filed on 10/04/1994US Classes:285/328, PARTICULAR INTERFACE96/106, Having system connector or coupling210/198.2, Chromatography285/332, Tapered285/417, SLEEVE285/911, GLASS285/915, MASTIC604/533Coupling or connector structureExaminersPrimary: Nicholson, Eric K.Attorney, Agent or FirmInternational ClassF16L 025/00AbstractA capillary column connector assembly includes a pair of body members fabricated from a resilient, inert ceramic having high compressive strength. Each body member has an inwardly tapering longitudinal throughbore within which the end of a capillary column can be inserted by press-fitting. A split sleeve holds the two body members in mutually facing alignment with inner end surfaces in compressed mutual contact. The inner end surfaces are slightly radiussed in order to deform upon compression and provide a fluid-tight seal surrounding the junction between the inner ends of the longitudinal bores, thereby eliminating the need for any separate sealing gasket.A mechanical assembly comprising an inner spool, an outer housing, a spring, and a bearing-mounted support provide axial compression forces tending to urge the ceramic body members into mutual facing contact with the radiussed surfaces deformed.Other References
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