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:
May. 29, 1990
Filed:
Mar. 30, 1989
Andreas Jager, Burgdorf, DE;
Other;
Abstract
An apparatus for aerating water, including rigid supporting pipes, which serve to supply air, and covers which are disposed on the supporting pipes close thereto and are provided with a plurality of resiliently expandable slits. The supporting pipes, together with their covers, are disposed virtually in a vertical plane one above the other in a horizontal parallel position. The covers and/or the supporting pipes have air supply openings of different sizes such that these openings, when viewed from bottom to top, become gradually smaller in order to ensure that, when the air supply means is common to all of the supporting pipes and covers of an apparatus, the air throughput quantities are at least substantially identical in size at the different vertical positions of the supporting pipes and covers.