Conduit attachment
Patent 5341566 Issued on August 30, 1994. Estimated Expiration Date: 
May 10, 2013. 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.
May 10, 2013. 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 560919 2120067 2417350 3064707 3785029 Heat exchanger with tubes and fins and tube-plates Method and device for assembling several components, particularly connection fittings for fluid couplings Method of making an aerosol nozzle assembly Heat exchanger and a method for a liquid-tight mounting of an end plate to an array heat exchanging elements of the heat exchanger Process for obtaining a hermetic connection for rigid tube InventorsApplicationNo. 059794 filed on 05/10/1993US Classes:29/890.035, Cooling apparatus making, e.g., air conditioner, refrigerator29/890.13, Including metal deforming29/890.14Gas and water specific plumbing component makingExaminersPrimary: Cuda, IreneAttorney, Agent or FirmInternational ClassB23P 015/00AbstractA method of attaching and sealing a straight walled tubular fitting to a block or valve body. The end of the tubing is closely fitted in a counterbore which has an undercut groove with a recessed elastomeric seal ring with the inner edges of the groove chamfered. A tubular insert having a thickened wall portion at one end is received in the tube so the thickened wall is coincident with the seal ring. A tapered punch is driven in the thickened end of the insert, causing the tubing wall to bulge locally and expand into the chamfered groove to secure the tube in the block and seal against the seal ring. | |
