High vacuum pump

Pumps – Electrical or getter type – Ionic with gettering

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

313174, F04B 3702, H01J 1970

Patent

active

040971953

ABSTRACT:
The pressure range, pumping speed and through-put of a high-vacuum pump can be significantly improved, particularly with respect to the pumping of hydrogen, by making pump components that are exposed to the vacuum from an alloy that is metallurgically stabilized to maintain a body-centered cubic crystal lattice structure throughout the range of temperatures usually experienced by the pump. In a sputter-ion pump, the cathode especially should be made from an alloy stabilized in the body-centered cubic crystal lattice form. A suitable alloy, which is so stabilized in the body-centered cubic crystal lattice form, has a major constituent comprising one or more elements selected from Group IV B of the conventional long form of the Periodic Chart of the Elements, and a minor constituent comprising one or more elements selected from Groups III B, V B, VI B and VII B of the Chart, with the minor constituent constituting at least 10% but not more than 50% by weight of the alloy. The alloy may have an additional constituent comprising one or more elements selected from Group III A or from any other Group of the Chart, provided that this additional constituent does not constitute more than 5% by weight of the alloy. Particular commercially available alloys that are suitable according to this invention include Ti-13V-11Cr-3Al and Ti-11.5Mo-6Zr-4.5Sn.

REFERENCES:
patent: 3147910 (1964-09-01), Jepsen
patent: 3460745 (1969-08-01), Lamont
patent: 3574569 (1971-04-01), Vordahl
patent: 3767480 (1973-10-01), Schuler et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-2301768

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.