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:
Sep. 17, 2019
Filed:
May. 28, 2015
Ibrahim Almishari, Durrat al Bahrain, BH;
Ibrahim Almishari, Durrat al Bahrain, BH;
Other;
Abstract
A fan apparatus is described that comprises a rotational hub that defines a central axis, a first fan blade coupled to the rotational hub and extending radially outward from the central axis, wherein the first fan blade has a first pitch angle; a second fan blade coupled to the rotational hub and extending radially outward from the first central axis, wherein the second fan blade has a second pitch angle opposite the first pitch angle; and a housing that defines cylindrical interior volume with a central axis coaxial with the central axis of the rotational hub, wherein the first and second fan blades reside within the cylindrical interior volume.