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.)
Domokos De Molnar Darkos
Original Assignee
Domokos De Molnar Darkos
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 Domokos De Molnar DarkosfiledCriticalDomokos De Molnar Darkos
Priority to ES95340UpriorityCriticalpatent/ES95340Y/en
Publication of ES95340UpublicationCriticalpatent/ES95340U/en
Application grantedgrantedCritical
Publication of ES95340YpublicationCriticalpatent/ES95340Y/en
Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes
(AREA)
Abstract
Filter tube for drilling, particularly applicable to the drilling of holes drilled in groundwater exploitations, characterized in that the perforations or slits made in the wall of the said shoring tube, are oriented so that their axes cross in space with the axis of the intubation according to an angle, whereby the pressure that in concentric directions receives externally the wall of the tube, compress against it the grains of sand that form a natural filter with respect to the water that penetrates through the expressed oblique passes inside the tube. (Machine-translation by Google Translate, not legally binding)
ES95340U1962-10-021962-10-02
Filter tube for boreholes
ExpiredES95340Y
(en)