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:
Mar. 29, 1988
Filed:
Apr. 19, 1984
Kenneth D Bagshawe, London, W.1., GB;
Other;
Abstract
A reaction mixture handling device comprises a chamber for containing a reaction mixture having an open upper end for introduction of the mixture or components thereof, and an outlet at its lower end. Below the inlet a body of filter material is located together with reaction mixture retaining structure for retaining the reaction mixture in the chamber and which is rendered inoperative on application of a positive pressure to the chamber or a negative pressure to the underside of the filter material. The reaction mixture retaining structure may comprise an impermeable or hydrophobic member which is positioned between the outlet and the filter material and closes the outlet, part of the filter material which is made impermeable or hydrophobic and closes the outlet, or an openable member located beneath the filter material. Application of the differential pressure either causes the filter material to move away from the outlet to open the outlet, or opens the member to permit liquid to flow.