Abstract: An actuating device for pipe-chamber feeders of hydraulic transport equipments comprising valves or other closing appliances having a closing element that is movable reciprocally between an open and a closed position, the improvement being characterized in said closing element being associated with at least one speed control means, especially a speed reducing means acting at least at the end phase of the closing stroke of said closing element.The speed reducing effect of at least one of said speed control means may be adjustable.
Type:
Grant
Filed:
August 28, 1987
Date of Patent:
September 26, 1989
Assignees:
Heves Megyei Tanacsi Epitoipari Vallalat, Kozponyi Banyaszati Fejlesztesi Intezet