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:
Oct. 27, 1992
Filed:
Jun. 19, 1991
Arnold Jager, 3167 Burgdorf, DE;
Other;
Abstract
An apparatus for aerating water, including a rigid, at least essentially planar support element upon which is disposed a sheet of elastomeric material that is provided with fine slits for the discharge of air. The support element has one or more connectors for supplying air between the support element and the sheet. The rim portion of the sheet is connected in an airtight manner to the support element. Provided at various locations inwardly of the rim portion of the sheet are one or more holding mechanisms for limiting or preventing a lifting of the sheet from the support element. This holding mechanism is in the form of a projection that is disposed on the underside of the sheet and is connected to the support element in an interlocking and/or frictional manner.