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:
Jan. 10, 1995
Filed:
Feb. 02, 1993
Joseph Bertoncini, Darnestown, MD (US);
Biomedical Research And Development Laboratories, Inc., Gaitherburg, MD (US);
Abstract
A multifunctional filtration apparatus is provided for the automated transfer, separation and filtration which accommodates all types of filter papers or filter mediums including aerophobic filter mediums such as nitrocellulose, nylon, biological membranes as well as aerophyllic filter mediums. The automated multifunctional filtration apparatus includes a first manifold and one or more separation chambers disposed on one side of a filter medium and a second manifold disposed on the other side of the filter medium. The multifunctional filtration apparatus provides for the high speed transfer, separation of gaseous and liquid components of a fluid before filtration without cross contamination of multiple samples by utilizing the first manifold to transfer fluids containing filtrable substances from test tubes or sample plates to a separation chamber disposed above the filter medium where the gases and liquids are separated and the gases removed before the utilization of the second manifold to provide for the filtration of the filterable substances on the filter medium. Subsequent addition of wash fluids or reagents for further reaction of the filterable substances can also be accomplished utilizing the novel multifunctional filtration apparatus. As a result the automated multifunctional filtration apparatus can be used for all types of filter paper or filter mediums used such as paper, glass, fiber synthetic and traditional filter papers as well as biological membranes or filter mediums having reactive or reactable surfaces for filtering and reacting captured filterable substances.