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:
Jun. 26, 2007
Filed:
Sep. 04, 2003
David J. Greenleaf, Loughborough, GB;
Peter D. Hodson, Breaston, GB;
Graham R. Purkins, Loughborough, GB;
Gary D. Mahon, Wilford, GB;
Heinz G. Klein, Bonn, DE;
David J. Greenleaf, Loughborough, GB;
Peter D. Hodson, Breaston, GB;
Graham R. Purkins, Loughborough, GB;
Gary D. Mahon, Wilford, GB;
Heinz G. Klein, Bonn, DE;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
The present invention relates to a novel design for a metering valve that provides improved consistency of formulation delivery. Generally, the metering valve includes (a) a valve stem that generally defines a longitudinal axis and includes a body portion having a metering surface, wherein the longitudinal axis and a plane tangential to at least a portion of the metering surface define an angle from about 2° to about 90°; and (b) a valve body having an internal chamber defined at least in part by the body wall and includes a metering portion configured to substantially conform to the metering surface of the valve stem.