Swivel bayonet joint for cryogenic fluids
Patent 6134893 Issued on October 24, 2000. Estimated Expiration Date: 
April 7, 2019. 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.
April 7, 2019. 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 ReferencesApparatus for transferring cryogenic liquid from one dewar to another Method and apparatus for transfer of liquefied gas Heat-stationed bayonet connector for cryogenic fluid lines Low heat loss liquid helium disconnect attachment and system Liquid gas sampling Patent #: 5195325 InventorApplicationNo. 284142 filed on 04/07/1999US Classes:62/50.7, Specific conduit, valve, or coupling structure285/47, Insulated285/904CRYOGENICExaminersPrimary: Capossela, Ronald C.Attorney, Agent or FirmInternational ClassF17C 013/00AbstractA method and system for dispensing cryogenic fluids, such as liquified natural gas (LNG), using a swivel bayonet joint interconnecting first and second sections of cryogenic pipe. The swivel bayonet joint includes a male bayonet joint and a corresponding female bayonet joint. An insertion stem of the male bayonet joint is dimensioned to have a very high tolerance fit within the receiving sleeve of the female joint that extends a sufficient length for formation of a vapor trap by the cryogenic fluid between the insertion end of the stem and the clamp end of the receiving sleeve. The vapor trap prohibits movement beyond the vapor trap of any cryogenic fluid passing through the joint, consequently, elastomeric seals in the bayonet joint remain insulated from extremely cold temperatures of the cryogenic fluid. | |
