Multi-stage vacuum pump

Details Multi-stage vacuum pump Multi-stage vacuum pump

2007-10-09

2007-10-09

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

Multistage

Interengaging rotary members

C418S075000, C418S104000, C418S140000, C418S201100, C418S206100

Reexamination Certificate

active

10766216

ABSTRACT:
A multi-stage vacuum pump includes a plurality of casings connected in series and each casing defining a respective compression chamber, a plurality of partition plates each set in between each two casings. When compressed by rotors at shafts in one compression chamber, compressed air passes through the air path formed in the corresponding partition plate to the next compression chamber for further compression, and finally compressed air passes to the last compression chamber through the air path formed in the last partition plate. Because the invention is designed to let compressed air directly pass through the air path in each partition plate, the outer diameter and volume of the multi-stage vacuum pump can be minimized to reduce the weight and the manufacturing cost.

REFERENCES:
patent: 599648 (1898-02-01), Stoner
patent: 3198120 (1965-08-01), Little, Jr.
patent: 3667874 (1972-06-01), Weatherston et al.
patent: 4789314 (1988-12-01), Higuchi et al.
patent: 5674051 (1997-10-01), Maruyama
patent: 6123526 (2000-09-01), Chen et al.

Affiliated with

Also associated with

Rating

Multi-stage vacuum pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-stage vacuum pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-stage vacuum pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3892352