Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Sterilization of cryogenic liquids by ultrafiltration










Image Number 3 for United States Patent #4759848.

A cryogenic liquid is sterilized by passing it through a microporous filter, while subcooling the liquid. Subcooling virtually eliminates the possiblity of formation of gas bubbles in the liquid, and thereby insures that the desired mass flow of liquid, through the filter, will be maintained. The apparatus used with this invention comprises an insulated tank, filled with cryogenic liquid. A container having a microporous filter disposed therein, is submerged within the tank. The filter can be made of nylon mesh, which is encased within a polypropylene frame. The filter has a pore size of about 0.2 microns or less. The liquid to be sterilized is a saturated cryogenic liquid. The liquid in the tank is held at a temperature lower than that of the liquid to be sterilized, and therefore subcools the liquid being sterilized. The sterilized liquid is then withdrawn directly from the filter container.








 
 
  Recently Added Patents
Automated fly through review mechanism
Elastomeric cover for the weighted head of a jig-type fishing lure
Orthopedic implant with locking element
Semiconductor device
Organic light emitting display device and manufacturing method for the same
Printing device and printing method
Large parasol with a textile fabric roof
  Randomly Featured Patents
Configuration mechanism for a computer system having generic user interface and component-specific builder modules
Imaging element and method for making lithographic printing plates according to the silver salt diffusion transfer process
Photon counting imaging detector system
Device for receiving and for transporting an article
Process for the manufacture of dimethyl disulphide
Ultrathin polyetherimide membrane and gas separation process
Apparatus for hearing test
Method and apparatus to facilitate transmission of ternary movable barrier operator information
Swing with a position adjusting member for adjusting a backrest relative to a seat frame
Offset shovel assembly for use with backhoe