Pumps – Motor driven – Electric or magnetic motor
Patent
1996-12-05
1999-03-02
Freay, Charles G.
Pumps
Motor driven
Electric or magnetic motor
417454, 417DIG1, 92164, F04B 1700
Patent
active
058761900
ABSTRACT:
A vacuum membrane pump includes a housing, a membrane and a head portion having a sealing surface which engages with a sealing edge of the membrane to form a seal. A pump chamber is formed between the head portion and the membrane. The head portion is cast from glass, and has at least one penetrating opening for accommodating a valve element on the side away from the pump chamber. The membrane rests with its sealing edge on a shoulder of the housing and, with the sealing edge, engages with the sealing surface of the head. The valve element is in turn engaged with the inside of the openings of the head. A closure connected to the housing delivers an axial force to the valve element. The valve element, the head, and the membrane are pressed together to form a sealed assembly.
REFERENCES:
patent: 2859912 (1958-11-01), Swart et al.
patent: 3947156 (1976-03-01), Becker
patent: 4516479 (1985-05-01), Vadasz
patent: 5002471 (1991-03-01), Perlov
patent: 5033940 (1991-07-01), Baumann
patent: 5171132 (1992-12-01), Miyazaki et al.
patent: 5219278 (1993-06-01), Van Lintel
patent: 5275541 (1994-01-01), Becker et al.
patent: 5540568 (1996-07-01), Rosen et al.
patent: 5676531 (1997-10-01), Muscarella et al.
Buchi Labortechnik AG
Freay Charles G.
LandOfFree
Vacuum membrane pump and a head portion for a vacuum membrane pu 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 membrane pump and a head portion for a vacuum membrane pu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum membrane pump and a head portion for a vacuum membrane pu will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-416296