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.)
BERNARDUS RATELBAND JOHANNES
Original Assignee
BERNARDUS RATELBAND JOHANNES
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 BERNARDUS RATELBAND JOHANNESfiledCriticalBERNARDUS RATELBAND JOHANNES
Publication of ES215077A1publicationCriticalpatent/ES215077A1/en
A new check valve system, characterized in that, being constituted by a box provided with a removable insertion piece forming a dividing wall between the input side and the exit side of the box and having on both sides of this dividing wall a second peripheral wall provided with holes for passage and surrounded by a membrane configured to sleeve, while there is an established chamber on the outer side of the membrane to allow the introduction of a medium or element under pressure, has arranged on the inside of the peripheral wall of the insertable part, and on both sides thereof, ribs distributed at its periphery, the through holes being formed by annular grooves extending up to said ribs. (Machine-translation by Google Translate, not legally binding)
ES0215077A1953-05-011954-04-30A new retention valve system (Machine-translation by Google Translate, not legally binding)
ExpiredES215077A1
(en)