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. 29, 1985
Filed:
Apr. 11, 1983
Niels D Jensen, Bjerringbro, DK;
Kurt F Nielsen, Bjerringbro, DK;
Grundfos A/S, Bjerringbro, DK;
Abstract
This invention relates to a pumping assembly for heating and faucet water plants, comprising a wet-armature motor and a centrifugal pump driven thereby, the casing of which is pressed to shape from metal plate and has an axially directed collar against which bears the encircling marginal area of a partition separating the pumping space from the motor space, and which is joined by welding to an equally encircling marginal area of the split tube separating the armature space from the stator space. A particularly uncomplicated and safe joint results between the components in question due to the fact that, in accordance with the invention, the partition and the split tube are interwelded at least at points in their mutual contact area and are, jointly with the armature connected to the pump casing, to form a structural unit ready for installation, by connecting the collar of the pump casing in liquid-tight manner to the said marginal area of the split tube by pressure welding.