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:
Feb. 24, 2009
Filed:
Feb. 14, 2005
Mark D. Porter, Missoula, MT (US);
Mark D. Porter, Missoula, MT (US);
Planetary Design, LLC, Missoula, MT (US);
Abstract
An internal cover () is used for enclosing the contents of a straight walled container () which consists of a disc shaped rigid body () having a recess () in the top surface creating a depression with an outside rim () extending around the edge and at least one valve air vent opening () within the recess. The body also has a circumferential groove () with a lip seal () disposed within the groove for sealing the cover to a container's side walls. A bail handle () is rotatably affixed within the body recess and has least one valve bore () therethrough covering at least one air vent opening forming a valve. When the handle is rotated to a vertical position an air flow path is created permitting the cover to be inserted into a container. When the cover is resting on top of the contents the valve is sealed by rotating the handle to a horizontal position.