Electric pipe snubber
Patent 4601449 Issued on July 22, 1986. Estimated Expiration Date: 
October 19, 2003. 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.
October 19, 2003. 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 2702101 Component restraint system Brake assembly for fluid operated piston and cylinder device Hydraulic ram safety device with circular brake Clamp and insert for clamping drilling tubulars Patent #: 4475607 InventorAssigneeApplicationNo. 06/543598 filed on 10/19/1983US Classes:248/58, Suspended188/171, Electric release188/173, Vehicle188/67, ROD248/901SUPPORT HAVING TEMPERATURE OR PRESSURE RESPONSIVE FEATUREExaminersPrimary: Machado, Reinaldo P.Assistant: Chin-Shue, Alvin C. Attorney, Agent or FirmInternational ClassesF16L 3/16 (20060101)F16L 3/18 (20060101) AbstractAn electric pipe snubber has an annular housing, fixed to a supporting surface, surrounding a pipe and a plurality of brake means fixed to the housing radially disposed about the pipe, which are biased towards and engage a serrated section on the pipe, and a means for electromagnetically releasing the brake means to permit axial displacement of the pipe relative to the annular housing. The brake means have teeth on the end thereof which mesh with the serrations on the pipe. A pipe support system using a series of the electric pipe snubbers along a length of pipe has a control means which releases the brakes of one of the series of the snubbers while the remainder of the series restrain the pipe from axial displacement. | |
