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:
Apr. 12, 1988
Filed:
Jan. 29, 1987
Theo Schut, Nieuw-Lekkerland, NL;
IHC Holland N.V., Papendrecht, NL;
Abstract
Centrifugal pump, in particular dredging pump for fluids containing abrasive solids and at times larger pieces, having an impeller closed at its two sides, which impeller is journalled at its two sides directly in the pump housing or extensions of the housing, without making use of separate bearing blocks; at the suction side of the impeller the bearing surface is formed on the outside of an interchangeable suction pipe stub (65) about 0.2-1.0 m or more in inside diameter. At the drive side a corresponding bearing structure (66, 662), fitted with axial bearings (663, 661) is used, all radial and axial bearings being fresh water lubricated and of purposely simple, interchangeable design. Against the closed side walls (61, 63) of the impeller, lip-type water lubricated seals are disposed in the vicinity of the outer diameter of the impeller. The pump housing is a welded substantially concentric cylindrical structure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile