The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 09, 1997
Filed:
Aug. 03, 1995
Dale Kalamasz, Redmond, WA (US);
CellPro, Inc., Bothell, WA (US);
Abstract
A method and apparatus for separating target particles from a mixture of target and non-target particles. The apparatus includes a vessel having an inlet through which the mixture may be introduced and an outlet through which the fluid may exit, at least a portion of which is pliable; a bed of binding material disposed within the vessel, the binding material attracting the target particles such that the target particles may become bound thereto and being porous enough to allow the non-target particles to pass therethrough; and a screen disposed below the binding material for retaining the binding material in place. The pliable portion of the vessel permits the user to separate the target particles from the binding material by merely squeezing the pliable portion in such a manner as to cause relative movement in the binding material, thereby creating the necessary degree of agitation to cause the target particles to become dislodged from the binding material. The deformation of the pliable vessel can be accomplished by either the user physically squeezing the vessel with his/her hand or using an external apparatus that applies the necessary force to the vessel.