Title:
【発明の名称】接合プレス内部のポジティブシールカップリング
Document Type and Number:
Japanese Patent JPH06500960
Kind Code:
A
Abstract:
This invention is a new device for installing press fit couplings to join steel pipelines. This apparatus is a joining press which fits inside the pipes to be joined and grabs them on their inside surfaces. It then pulls the pipes together, forcing the pipe ends into the coupling. The invention is comprised of two hydraulically operated grippers to grip the pipe and a hydraulically operated cylinder to pull the pipes together. The entire press is controlled using only two hydraulic lines. The grippers can be retracted and the apparatus moved within the pipeline from one joint to the next.
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Inventors:
Fisk Allen Tea
Fried David Eye
Fried David Eye
Application Number:
JP51788991A
Publication Date:
January 27, 1994
Filing Date:
September 18, 1991
Export Citation:
Assignee:
ELECTRIC POWER RESEARCH INSTITUTE,INCORPORATED
International Classes:
B23P19/02; B25B27/02; B25B27/06; F16L1/09; (IPC1-7): B23P19/02
Attorney, Agent or Firm:
Minoru Nakamura (7 outside)