Patent · US Expired

Pump with selectable suction ports

US6824354B2 · kind B2 · utility

20Cited by

6References

8Claims

0Family size

Assignees

Oliver Laing · DE
Karsten Laing · DE
Birger Laing · DE

Inventor

Karsten Laing · Althütte, DE

Key dates

Filing date	Sep 22, 2003
Grant date	Nov 30, 2004
Priority date	—
Expiry date	Sep 22, 2023

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D29/708
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A circulator pump-motor unit which has an impeller assembly that can selectively tilt between two positions is disclosed. Each of the two positions corresponds to aligning a suction port with one of two inlet ports. The unit can be used to, for example, change the path of hot water conveyed between these ports so that either a hot water system or a hydronic system gets heat.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.