Hydrogen-purification apparatus with palladium-alloy filter coil
Patent 4056373 Issued on November 1, 1977. Estimated Expiration Date: 
November 1, 1994. 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.
November 1, 1994. 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 2458118 3149775 3208198 3469372 3638684 3665680 3782904 Method for repairing a heat exchanger tube Fabricating bodies Process for manufacturing a helical reverse osmosis segment Patent #: 3983194 InventorAssigneeApplicationNo. 05/686238 filed on 05/12/1976US Classes:96/10, Hollow fiber or cylinder138/118, FLEXIBLE138/177, STRUCTURE138/178, MISCELLANEOUS138/97, REPAIRING29/402.13, Metallurgically attaching preform55/520, SPIRAL FILTER MEDIA55/529MISCELLANEOUS (E.G., SHAPES)ExaminersPrimary: Lutter, Frank W.Assistant: Prunner, Kathleen J. Attorney, Agent or FirmAbstractA hydrogen-purification filter has a closed chamber with a pure-hydrogen outlet. A coil made of thin palladium-alloy tubing is contained in this chamber and has an inlet end and an outlet end accessible from outside the chamber. This coil is of D-section so that in case a leak forms the turn of the coil containing the leak can be excised by cutting at the straight sections on both sides of the leak and the remaining coil rejoined at the straight sections. | |
