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.)
Weatherhead Co
Original Assignee
Weatherhead Co
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Filing date
Publication date
Application filed by Weatherhead CofiledCriticalWeatherhead Co
Priority to ES281637ApriorityCriticalpatent/ES281637A3/en
Publication of ES281637A3publicationCriticalpatent/ES281637A3/en
Perfection in pumps, characterized by comprising a pump body with an inlet and an outlet; a guide element in the body a cylinder block mounted for limited axial movement along the guide element, from a position of maximum displacement to a position of minimum displacement; elastic means that normally drive the cylinder block to its maximum displacement position; liquid fluid means for moving the cylinder block along the guide element, to its minimum displacement position, and means for controlling the liquid fluid means, wherein said control means depend on the changes in pressure of fluid at the outlet, to move the cylinder block and vary the displacement, in line with the pressure changes of the output. (Machine-translation by Google Translate, not legally binding)
ES281637A1962-10-171962-10-17Improvements in pumps (Machine-translation by Google Translate, not legally binding)
ExpiredES281637A3
(en)