Vacuum pump with pump rotor pairs and permanent magnet motor

Details Vacuum pump with pump rotor pairs and permanent magnet motor Vacuum pump with pump rotor pairs and permanent magnet motor

2005-06-07

2005-06-07

Freay, Charles G. (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C310S216006

Reexamination Certificate

active

06902380

ABSTRACT:
A vacuum pump has a casing having an inlet port and an outlet port, and a pair of confronting pump rotors which are provided inside the casing and synchronously rotatable for drawing in a gas from the inlet port and discharging the gas from the outlet port. A motor for rotating the confronting pump rotors is a permanent magnet motor having a stator and a motor rotor. The motor rotor has an iron core and permanent magnets disposed within the iron core.

REFERENCES:
patent: 4353002 (1982-10-01), Kobayashi et al.
patent: 5096390 (1992-03-01), Sevrain et al.
patent: 5261802 (1993-11-01), Yanagisawa
patent: 5378128 (1995-01-01), Yanagisawa
patent: 5542825 (1996-08-01), Perrillat-Amede
patent: 5779453 (1998-07-01), Nagayama et al.
patent: 5782609 (1998-07-01), Ikemoto et al.
patent: 5846062 (1998-12-01), Yanagisawa et al.
patent: 6039827 (2000-03-01), Cramer
patent: 6092994 (2000-07-01), Yamamoto et al.
patent: 6183218 (2001-02-01), Ojima et al.
patent: 6448682 (2002-09-01), Sakagami et al.
patent: 6528920 (2003-03-01), Matsunobu et al.
patent: 2001/0000722 (2001-05-01), Ojima et al.
patent: 2002/0067096 (2002-06-01), Yamamoto et al.
patent: 8-319967 (1996-12-01), None

Affiliated with

Also associated with

Rating

Vacuum pump with pump rotor pairs and permanent magnet motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum pump with pump rotor pairs and permanent magnet motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum pump with pump rotor pairs and permanent magnet motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3485099