The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1978
Filed:
Jul. 08, 1976
Fritz Strub, St. Gallen, CH;
Filtrox Maschinenbau AG, St. Gallen, CH;
Abstract
A settling layer filtration system having at least one settling layer arranged in a vertical direction with the liquid to be filtered being delivered thereto by means of an electric powered filter pump which is protected against the collapse of that settling layer in the event of the occurrence of an emergency condition which would interrupt the flow of liquid therethrough by the provision of an emergency standby operating means for maintaining during the emergency condition a minimum flow of liquid through said settling layer sufficient to maintain it in vertical working position. The emergency operating means includes a water turbine having a driving connection with pump means delivering liquid to the settling layer, means for sensing the occurrence of an emergency condition, and means operated in response to the sensing means for activating the water turbine to drive the pump to deliver liquid at a flow level at least sufficient to maintain the settling layer in its working orientation.