Title:
真空ポンプのための圧力シール
Document Type and Number:
Japanese Patent JP4713059
Kind Code:
B2
Abstract:
The invention concerns a vacuum pump consisting in the assembly of two stator half-shells (101, 102) and two directly mounted end parts (31, 32) with an interposed single-piece continuous pressure seal (33). The pressure seal (33) comprises two annular end parts (34, 35) generally parallel to each other and connected by two side-members (36, 37) which are generally perpendicular thereto. Thus, the number of components to be assembled to produce an multistage dry vacuum pump is reduced, while providing satisfactory impermeability to outside atmosphere.
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Inventors:
Deyuran, Pascal
Bourgeois, Emanuel
Bourgeois, Emanuel
Application Number:
JP2002521836A
Publication Date:
June 29, 2011
Filing Date:
August 09, 2001
Export Citation:
Assignee:
Alcatel-Lucent
International Classes:
F04B39/00; F04C29/00; F01C21/10; F04C18/08; F04C23/00; F04C25/02; F04C27/00; F04C18/12
Domestic Patent References:
| JP2000205148A | ||||
| JP3061189U | ||||
| JP2001132577A | ||||
| JP6069524U | ||||
| JP8303323A |
Attorney, Agent or Firm:
Yoshio Kawaguchi
Mitsuru Inoue
Akio Ichiiri
Katsuma Osaki
Takamasa Soma
Mitsuru Inoue
Akio Ichiiri
Katsuma Osaki
Takamasa Soma