Filter device for a minute volume of liquid
AssigneeToyo Soda Manufacturing Co., Ltd.
InventorsKenji Koyama, Shotaro Ohno
Life of this patent
Estimating the term…
Abstract
A filter device for a minute volume of liquid, usable under a centrifugal force or under pressure, comprising a cylindrical member and a hollow thread filter having an open lower end and housed in said cylindrical member to form an annular space for containing a sample liquid around the filter, with the lower part of the hollow thread filter liquid-tightly bonded to the inside wall of the lower part of the cylindrical member and with the upper end of the hollow thread filter sealed.
Claims6
A filter device for a minute volume of liquid in combination with means for applying pressure or centrifugal force, said filter device comprising a cylindrical member and a single hollow fiber filter having an open lower end and housed in said cylindrical member to form an annular space for containing a sample liquid around the filter, with the lower part of the hollow fiber filter liquid-tightly bonded to the inside wall of the lower part of the cylindrical member and with the upper end of the hollow fiber filter sealed, said hollow fiber filter being a microfilter having micro-scale pores observable only with an electron microscope or an ultrafiltration membrane.
Dependencies are inferred from the claim text.