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. 04, 2007
Filed:
Dec. 18, 2006
Timothy M. O'shea, Chicago, IL (US);
Timothy M. O'Shea, Chicago, IL (US);
Val Matic Valve & Mfg. Corp., Elmhurst, IL (US);
Abstract
A valve actuator includes a body having at least a first side and an interior. A rotatable, threaded drive screw extends into the body and projects out of the body first and second sides. The drive screw comprises an insertion portion and a distal end portion. A traveling nut is threadingly captured on the drive screw in the body interior. The traveling nut is held against rotation whereby it travels along the drive screw as the screw rotates. An actuator arm engages the nut and is configured to be urged between valve open and closed positions as the traveling nut travels along the drive screw. A first collar is attached to at least a portion of the drive screw insertion portion and has at least a bearing for rotatably engaging the body. A second collar is attached to at least a portion of the drive screw distal end portion and has at least a bearing for rotatably engaging the body.