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:
Apr. 20, 2004
Filed:
Mar. 04, 2002
Patrick Warren Bailey, East Yorkshire, GB;
Aventis Cropscience S.A., , FR;
Abstract
A valve device has an outer sleeve with a first end to be secured in an orifice of a container. A second end is releasably attached to a receptacle. Walls define a generally cylindrical support passage which extends from said first end to said second end. An inner sleeve is within the support passage with walls defining a generally outer surface adjacent the walls of the outer sleeve. The walls rotatably support the inner sleeve and define an internal through passage. A butterfly valve member is in the through passage. The butterfly valve has diametrically opposed first and second pivot stubs which extend at least into the walls of the inner sleeve to rotatably support the butterfly valve. The walls of the outer sleeve have a profiled opening into which the first pivot stub extends. The first pivot stub includes a cam member which interacts with the profiled opening. Relative rotation of the inner and outer sleeves causes the butterfly valve member to rotate between a closed state and an open state.