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:
Nov. 25, 1980
Filed:
Mar. 05, 1979
James J Feliks, Doraville, GA (US);
The Mead Corporation, Dayton, OH (US);
Abstract
A mechanism and method for filling containers within a sterile chamber under aseptic conditions includes a vertically disposed nozzle (48) which forms an extension of the sterile chamber and which is arranged to have its lower outlet end inserted into an open container to be filled and which is provided with valve closure element (51) which is opened when the nozzle is at its lowermost position and which remains open during filling of the container which is accompanied by upward movement of the nozzle and of the closure element while maintained in open position so as to prevent splashing together with a drip proof seal (49, 52, and 53) for preventing dripping following closure of the valve means. A measuring cylinder (10) and associated piston (9) are mechanically interrelated with the nozzle so that charging movement of the piston forces a measured quantity of flowable material into the nozzle for discharge therefrom while the nozzle is moved upwardly and once the upward movement of the nozzle is completed upward movement of the measuring piston commences followed by independently controlled downward movement of the nozzle and opening of the nozzle closure means. According to one feature of the invention the flowable material is isolated from atmosphere by suitable barrier cavities containing sterile inert gas under slight pressure above atmospheric pressure and defined in part by rolling seals which isolate the moving elements from atmoshpere.