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. 12, 2019
Filed:
Feb. 11, 2016
Borgwarner Inc., Auburn Hills, MI (US);
Brian E. Handlon, Arden, NC (US);
Ryan T. Howell, Hendersonville, NC (US);
BorgWarner Inc., Auburn Hills, MI (US);
Abstract
A valve actuator () and method for controlling such is disclosed. The valve actuator () may include a body (), a piston (), a first spring () displaceable between a primary position () and a secondary position (), and a second spring () displaceable between a first position () and a second position (). The first and second springs () are configured to be simultaneously displaced during movement of the piston () from a first piston position () to a second piston position (). The first spring () is configured to compress to a higher first spring force (F) during displacement from the primary position () to the secondary position (), and the second spring () is configured to have a decreasing second spring force (F) during displacement from the first position () to the second position (), the second spring force (F) decreasing non-linearly.