Centrifugal pump

Details Centrifugal pump Centrifugal pump

2011-08-23

2011-08-23

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Specific casing or vane material

C415S206000, C415S215100, C156S272800, C403S270000

Reexamination Certificate

active

08002522

ABSTRACT:
A centrifugal pump comprising a pump housing made of injection-molded plastics with a first housing part, which is designed as a single piece with a suction connection and a pressure connection, and comprises a sealing area, by means of which said first housing part is joined in a liquid-tight manner to a second housing part, that receives an electric motor, and a motor housing part. In this centrifugal pump, very good leak tightness is achieved with minimum number of parts, minimum weight and minimum assembly costs with universal applicability without impairing the visual overall impression of the centrifugal pump. This objective is achieved in that the second housing part is made of a material that is permeable to laser light of a wavelength or a wavelength range, and the first housing part is made of a material that absorbs the same laser light, and the first housing part and the second housing part are heat-sealed to one another.

REFERENCES:
patent: 5639228 (1997-06-01), Van De Venne et al.
patent: 6663362 (2003-12-01), Lentz et al.
patent: 6802929 (2004-10-01), Ruotsalainen
patent: 199 56 380 (2001-04-01), None
patent: 602 08 599 (2006-08-01), None
patent: 0 079 435 (1986-03-01), None

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