Removable fluid seal and method
Patent 5118079 Issued on June 2, 1992. Estimated Expiration Date: 
July 12, 2011. 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.
July 12, 2011. 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 References 1600137 1993307 2213680 2993616 3292897 3326243 3468339 InventorAssigneeApplicationNo. 729357 filed on 07/12/1991US Classes:251/191, Packing expands with closing138/89WITH CLOSURES AND PLUGSExaminersPrimary: Cohan, AlanAttorney, Agent or FirmForeign Patent References
International ClassF16K 003/28AbstractA removable fluid seal has a first deforming pin seated on a dead end of a fluid passage and a second deforming pin positioned in the opposite end of the fluid passage, with a spherical elastomeric member positioned between the first and the second deforiming pins. A threaded plug is axially advanced through the fluid passage to force the deforming pins towards each other and resiliently distort the elastomeric member into a deformed state in which an outer surface of the sphere is forced into sealing engagement with the sidewall of the fluid chamber. | |
