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:
Dec. 10, 2013
Filed:
Dec. 21, 2007
James Russell Hornsby, St. Louis, MO (US);
Marcellus Rambo Benson, Chesterfield, MO (US);
James Augustus Keefe, Iii, O'Fallon, MO (US);
Joseph Lee Mcgowan, St. Charles, MO (US);
James Russell Hornsby, St. Louis, MO (US);
Marcellus Rambo Benson, Chesterfield, MO (US);
James Augustus Keefe, III, O'Fallon, MO (US);
Joseph Lee McGowan, St. Charles, MO (US);
S.C. Johnson & Son, Inc., Racine, WI (US);
Abstract
A valve having a membrane for controlling flow through the valve, the membrane having open and closed positions. An element urges the membrane to the closed position, and a vacuum pressure at one end of the valve may overcome the urging of the element, thereby moving the membrane to the open position. An actuator is provided for easing or initiating the movement of the membrane. In some embodiments, the valve may take the form of a valve assembly for use in a variety of applications, for example, a valve assembly for relieving a vacuum pressure wherein the assembly includes intake and exhaust ends, a membrane for controlling flow through the assembly, a spring providing a closing bias to the membrane that the vacuum pressure may overcome to move the membrane, and an actuator for initiating the movement of the membrane.