Centrifugal pump for electrical household appliance or the like

Details Centrifugal pump for electrical household appliance or the like Centrifugal pump for electrical household appliance or the like

2006-04-25

2006-04-25

Freay, Charles G. (Department: 3746)

Pumps

Motor driven

Reversely rotated for starting

C417S326000, C417S423600

Reexamination Certificate

active

07033145

ABSTRACT:
A centrifugal pump for a household appliance includes a synchronous alternating current electrical motor having a permanent magnet rotor and a bladed impeller coupled to an end of the rotor which extends into a cavity in the hub thereof. The rotor and the hub are provided with transverse coupling formations, respectively, which have angular extensions with angular play between the rotor and the impeller for promoting the starting of the motor. The rotor coupling formation includes a transverse appendage on a rigid drive body secured to the rotor, and a resilient damping formation molded onto the drive body and having two end portions for engaging the impeller coupling formation, and an intermediate portion which interconnects the end portions and extends at least partially through the drive body so that the damping formation as a whole is constrained axially and angularly on the drive body.

REFERENCES:
patent: 6478555 (2002-11-01), Kim et al.
patent: 6524078 (2003-02-01), Brooks et al.
patent: 2002/0122731 (2002-09-01), Marioni
patent: 4232939 (1994-04-01), None
patent: 0207430 (1992-02-01), None
patent: 0514272 (1992-11-01), None
patent: 514272 (1992-11-01), None
patent: 0287984 (1993-10-01), None
patent: 0945622 (1999-09-01), None
patent: WO9935403 (1999-07-01), None
patent: WO9948189 (1999-09-01), None
European Search Report for European Patent Application EP03019974.9-2315, Feb. 8, 2005.

Affiliated with

Also associated with

Rating

Centrifugal pump for electrical household appliance or the like does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Centrifugal pump for electrical household appliance or the like, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Centrifugal pump for electrical household appliance or the like will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3563742