Scroll pump and method of assembling same

Details Scroll pump and method of assembling same Scroll pump and method of assembling same

2004-02-11

2008-10-28

Nguyen, Hoang M (Department: 3748)

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

C418S055400

Reexamination Certificate

active

07442016

ABSTRACT:
A method of assembling a scroll pump comprises the following steps carried out sequentially; the step of mounting a first bearing means (20) and drive shaft (14) for rotation relative to a housing (12): the step of fastening a first flange portion (48) of a bellows arrangement (34) relative to the housing (12); the step of fastening an orbiting scroll (26) to a second flange portion (56) of the bellows arrangement (34); and the step of fixing a second scroll (28) relative to the housing (12) for co-operation with the orbiting scroll (26). The second flange portion (56) is fastened to the orbiting scroll (26) with fasteners (60) which extend through a through-bore (61) in the orbiting scroll and engage with the second flange portion.

REFERENCES:
patent: 5123364 (1992-06-01), Gitman et al.
patent: 6234787 (2001-05-01), Endoh et al.
patent: 6916162 (2005-07-01), Schofield et al.
patent: 0 802 370 (1997-10-01), None
United Kingdom Search Report of Application No. GB0417378.7; Date of search: Dec. 21, 2004.

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