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:
Oct. 18, 1977
Filed:
Apr. 22, 1976
Charles S Alack, St. Louis, MO (US);
Semi-Bulk Systems, Inc., St. Louis, MO (US);
Abstract
Apparatus for filling an open-mouth container with fluent material, such as powdered, granular or liquid material, and for removing dust or vapor from within the container during filling, the apparatus comprising a delivery head adapted to be substantially centered with respect to the container above the container for delivery of the fluent material and for removal of dust and vapor from within the container during filling, a closure carried by the delivery head expandable from a collapsed position in which it is drawn up around the delivery head and an expanded position in which it sealingly engages the inside of the container adjacent the mouth of the container to close off the mouth of the container thereby to prevent escape of dust or vapor during filling, and an actuator carried by the delivery means for expanding and collapsing said closure. Also disclosed is a method of de-aerating powdered material filling a container.