Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRUEDER MANNESMAN GmbH
Original Assignee
BRUEDER MANNESMAN GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BRUEDER MANNESMAN GmbHfiledCriticalBRUEDER MANNESMAN GmbH
Priority to ES0229044ApriorityCriticalpatent/ES229044A1/en
Publication of ES229044A1publicationCriticalpatent/ES229044A1/en
Double sleeve divided with chamber-shaped lining, characterized by being provided with the double sleeve which is used especially for drilling a pipe under pressure, of fittings arranged in the spaces intended for them and compressible, by pressure elements, said double sleeve having in relation to the pipe to be made hermetic, such a diameter that originates between the pipe and the inner wall of said double sleeve a free space and hermetically adjustable. (Machine-translation by Google Translate, not legally binding)
ES0229044A1956-05-231956-05-23Divided double sleeve with chamber shaped guarnicion (Machine-translation by Google Translate, not legally binding)
ExpiredES229044A1
(en)