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. 20, 1987
Filed:
Aug. 19, 1985
Wilhelm Weiss, Regensburg, DE;
Krones AG Hermann Kronseder Maschinenfabrik, Neutraubling, DE;
Abstract
Containers such as bottles, which are to be filled with liquid from a tank pressurized with non-oxidizing gas, are coupled to a filling device and evacuated of air that is discharged to the atmosphere. Next gas from the tank is fed to the bottles. When gas pressure in the tank and bottle equalize, the liquid flows by gravity into the bottle to displace the gas and return it to the tank. After filling with liquid is cut off a charge of pure non-oxidizing gas is injected in the bottle to fill it to the top with pure gas. Excess pure gas is fed back into the tank to make up for the dilution of the gas that results from the evacuation of air from the bottles being necessarily imperfect. The bottles are uncoupled from the device after they are filled with pure gas and they are then sealed.