Method for making a heat exchanger tube
Patent 5890288 Issued on April 6, 1999. Estimated Expiration Date: 
August 21, 2017. 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.
August 21, 2017. 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 349060 438025 2655181 3906605 Method of making heat exchangers Multiple serpentine tube heat exchanger Method of manufacturing heat exchanger tubing Method of manufacturing a tube for a heat exchanger Tube for heat exchangers and a method for manufacturing the tube Method of making a high pressure condenser InventorsAssigneeApplicationNo. 916192 filed on 08/21/1997US Classes:29/890.053, Tube making or reforming29/890.054With metallurgical bondingExaminersPrimary: Cuda, IreneAttorney, Agent or FirmForeign Patent References
International ClassB23P 015/26AbstractA method for making a heat exchanger tube having an elongated, generally rectangular member including a planar base, a top, and pair of arcuate opposed side portions interposed between the base and the top. A partition extends from the top to the base to define a pair of fluid passageways, the partition including a pair of opposing, contacting shoulder portions and a leg portion depending from each of the shoulder portions which contact the base. A first braze receiving of predetermined size is defined between the shoulder portions and the manifold of the heat exchanger. The size of the braze receiving area is controlled by minimizing the curvature of the shoulder portions. | |
