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. 01, 2001
Filed:
Feb. 04, 1999
Bengt-Ake Brandt, Sundbyberg, SE;
Boris Fredriksson, Huddinge, SE;
ITT Manufacturing Enterprises, Inc., Wilmington, DE (US);
Abstract
The invention concerns a device for a submersible machine, such as a pump, a turbine or a mixer. The machine includes a driving unit (,) and a hydraulic unit (,) having an impeller connected to the driving unit via a rotary shaft (,). In order to prevent the medium in the hydraulic unit from entering the driving unit along the driving shaft, an intermediate seal device is arranged. The seal device includes two mechanical face seals (,) and (,) and an intermediate room (,) containing barrier liquid. In order to prevent possible leaking barrier liquid from damaging the shaft bearing (,), a storage tank (,) for collecting said liquid is arranged within the room (,).