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:
Nov. 28, 2017
Filed:
Jun. 03, 2014
Dave Fletcher, Flint, MI (US);
Brian Graichen, Leonard, MI (US);
Keith Hampton, Ann Arbor, MI (US);
Matt Gilmer, Whitmore Lake, MI (US);
Andrew Niedert, New Hudson, MI (US);
Dave Fletcher, Flint, MI (US);
Brian Graichen, Leonard, MI (US);
Keith Hampton, Ann Arbor, MI (US);
Matt Gilmer, Whitmore Lake, MI (US);
Andrew Niedert, New Hudson, MI (US);
Dayco IP Holdings, LLC, Troy, MI (US);
Abstract
Aspirators are disclosed herein that include a body defining a Venturi gap between an outlet end of a converging motive section and an inlet end of a diverging discharge section and have a suction port in fluid communication with the Venturi gap. The converging motive section defines a circular-shaped motive inlet and defines an elliptical- or polygonal-shaped motive outlet, and the diverging discharge section defines an elliptical- or polygonal-shaped discharge inlet. In one embodiment, the converging motive section defines an inner passageway that transitions as a hyperbolic function from the circular-shaped motive inlet to the elliptical- or polygonal-shaped motive outlet and the elliptical- or polygonal-shaped motive outlet has an area that is less than the area of the circular-shaped motive inlet.