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:
May. 05, 1992
Filed:
Dec. 13, 1990
Karl-Hermann Sill, Salem, DE;
Harald Lenski, Ueberlingen, DE;
Dornier GmbH, Friedrichshafen, DE;
Abstract
Apparatus and method for handling liquid under conditions of weightlessness or near weightlessness includes a small tube being open at one end and closed at the other end except for a passage; normally the open end sits on an elastic nonwetting seal; the tube is moved towards and away from that seal; a plunger on a rod is movably disposed within the tube, and a liquid is kept in the space between the plunger and the open end; the rod is provided with two adjustable, spaced apart stops; and a stationary abutment limits plunger movement to range given by spacing between the stops, so that following evaporation of liquid of a drop that has formed on lift off of the tube, only the residual drop is sucked back into the tube without formation of bubbles.