Pipe welding apparatus
Patent 5040716 Issued on August 20, 1991. Estimated Expiration Date: 
April 3, 2010. 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 3, 2010. 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 3596898 3653574 3827126 3870288 3881715 3901497 Clamping device for use in making mitered joints in pipe sections Welding fixture for use in joining two tubular members Apparatus and methods for use in welding Structure for aligning and butt-welding tube ends InventorApplicationNo. 503867 filed on 04/03/1990US Classes:228/49.3, Pipe joint aligner228/42, Gaseous flux228/56.5, WITH SIGNAL, INDICATOR, GAUGE, OR STOP269/51, Compound or plural movement269/95, With means to fasten holder to support (e.g., portable)269/311Means to hold plural support blocksExaminersPrimary: Heinrich, Samuel M.Attorney, Agent or FirmForeign Patent References
International ClassB23K 037/053AbstractAn apparatus for aligning and supporting confronting pipe or tube sections to be welded together. An elongated supporting table is provided with a pair of inwardly grooved tracks and various pipe secondary support members are also provided to mate with the tracks and to hold several pipe or tube arrangements utilizing conventional T-fittings, 45° and 90° elbow fittings, nozzle fittings, etc. The apparatus permits minimal setup time, proper alignment, stability during welding and the use of conventional orbital pipe welding heads and a smooth angular welding surface free from interference by prior art longitudinally disposed clamping external members.Field of SearchPipe joint alignerWITH SIGNAL, INDICATOR, GAUGE, OR STOP Gaseous flux Comprising tube aligning means With clamping or holding PLURAL SELECTIVELY USED HOLDERS Holder mounted for movement Compound or plural movement With means to fasten holder to support (e.g., portable) Means to hold plural support blocks WORK HOLDER MEMBER WITH V-SHAPED NOTCH OR GROOVE | |
