Vacuum nozzle for cleaning ceiling fan blades

A vacuum nozzle for attachment to a vacuum hose for cleaning ceiling fan blades, comprising:

• a) an elongate, tubular handle having an open end that is connectible to a vacuum hose;
• b) a hollow, generally rectangular head connected to an opposite end of the tubular handle, wherein the head has spaced front and rear walls, and has an interior wall that extends between the front and rear walls to define a blade passage of generally rectangular cross-section that extends transversely with respect to a longitudinally extending center axis of the handle, with the blade passage 1) having a front end where the blade passage opens through the front wall, 2) having a rear end where the blade passage opens through the rear wall, and 3) being of a size that will permit a cross-section of a blade of a ceiling fan to pass loosely therethrough;
• c) wherein the head has top, bottom, left and right portions that cooperate to extend perimetrically about top, bottom, left and right portions of the blade passage, respectively, and that include spaced, substantially parallel-extending top and bottom bars that have overlying left and right ends which are connected by left and right end structures;
• d) wherein the top and bottom bars and the left and right end structures all have hollow interiors that cooperatively communicate to define a generally rectangular vacuum chamber that extends perimetrically about the blade passage, wherein the top and bottom bars and the left and right end structures respectively define top, bottom, left and right portions of the interior wall that cooperate to segregate the vacuum chamber from the blade passage;
• e) wherein the top and bottom bars and the left and right end structures also respectively define discrete top, bottom, left and right vacuum openings that extend respectively through the top, bottom, left and right portions of the interior wall, said vacuum openings extending in a common center plane of the head that resides along the longitudinally extending center axis of the handle and communicating the vacuum chamber and the blade passage;
• and,
• f) wherein the top and bottom bars and the left and right end structures also respectively carry top, bottom, left and right bristles that extend respectively into top, bottom, left and right portions of the blade passage, with half of the top bristles, half of the bottom bristles, half of the left bristles and half of the right bristles comprising a front set of bristles that extend principally within a front plane that parallels the common center plane and intersects the blade passage near the front end thereof, and with the other halves of the top, bottom, left and right bristles comprising a rear set of bristles that extend principally within a rear plane that parallels the common center plane and intersects the blade passage near the rear end thereof.

A nozzle for vacuuming dust from top, bottom and opposed edge surfaces of a ceiling fan blade, comprising:

• a) an elongate tubular handle for ducting dust into a vacuum hose when a vacuum hose is connected to one end region of the tubular handle;
• b) a hollow, generally rectangular shaped head defined by spaced, overlying, tubular top and bottom bars having overlying left end regions connected and communicated by a transversely extending tubular left bar, and that have overlying right end regions connected and communicated by a transversely extending tubular right bar, with the top, bottom, left and right bars 1) having front portions that cooperate to define a front surface of the head, 2) having rear portions that cooperate to define an opposed rear surface of the head, 3) extending perimetrically about a blade passage of generally rectangular cross-section that has opposed front and rear ends that open through the the front and rear surfaces, respectively, and 4) having their hollow interiors communicated to cooperatively define a vacuum chamber that extends perimetrically about the blade passage at a location substantially midway along the length of the blade passage, with the blade passage being of a sufficient cross-sectional size to permit portions of a ceiling fan blade to be inserted therein and to move therethrough with a top surface of the blade facing toward a top surface of the blade passage that is defined by a bottom portion of the top bar, with a bottom surface of the blade facing toward a bottom surface of the blade passage that is defined by a top portion of the bottom bar, and with opposed left and right surfaces of the blade facing toward opposed transversely extending sides of the blade passage that are defined by interior portions of the left and right bars;
• c) a front array of bristles carried by the head at a front location near where the front end of the blade passage opens through the front surface and extending perimetrically about the blade passage at the front location, and a rear array of bristles carried by the head at a rear location near where the rear end of the blade passage opens through the rear surface and extending perimetrically about the blade passage at the rear location;
• d) a central array of vacuum openings communicating the vacuum chamber with the blade passage for ducting a flow of dust and air from the blade passage into the vacuum chamber, with the openings of the central array including top, bottom, left and right openings formed respectfully through the top, bottom, left and right surfaces of the passage, which array is situated substantially equidistantly between the front array of bristles and the rear array of bristles;
• and,
• e) with the top openings having a combined cross-sectional area that is greater than the combined cross-sectional area of each of the left and right openings, and with the cross-sectional areas of each of the left and right openings being greater than the combined cross-sectional area of the bottom openings.