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.)
Grace SA
Original Assignee
Grace SA
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 Grace SAfiledCriticalGrace SA
Priority to ES1977225975UpriorityCriticalpatent/ES225975Y/en
Publication of ES225975UpublicationCriticalpatent/ES225975U/en
Application grantedgrantedCritical
Publication of ES225975YpublicationCriticalpatent/ES225975Y/en
On-Site Construction Work That Accompanies The Preparation And Application Of Concrete
(AREA)
Reciprocating Pumps
(AREA)
Abstract
Metering apparatus for materials, especially a liquid additive for concrete of the type comprising a metering chamber and means for feeding the chamber a material to be discharged in a metered dose, characterized in that means are provided, inside the chamber of dosage, to detect the obtaining of a predetermined level of material to be dosed; means for expelling the material to be dosed from the dosing chamber; and means responsive to obtaining the predetermined level, to automatically deactivate the dosing material feeder means, and simultaneously activate the means used to expel the material from the dosing chamber. (Machine-translation by Google Translate, not legally binding)