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:
Apr. 25, 2000
Filed:
May. 27, 1998
Mark Robert Schwarze, Huntsville, AL (US);
Anthony C Libhart, Huntsville, AL (US);
Schwarze Industries, Inc., Huntsville, AL (US);
Abstract
A gutter broom (8) for a pavement sweeper is defined by an annular brush disc (24) having a central opening and from which a series of equi-spaced conventional bristle blocks (11) are removably secured. A downwardly depending air foil (18) is secured to the underside of the annular brush disc (24) between each bristle block (11). A series of equi-spaced radially aligned fan blades (17) are secured to the opposite side of the annular brush disc (24) and function to define a radial flow fan. A stationary fan scroll (20) is formed over and contains the radial flow fan and includes an air flow outlet (23). When the gutter broom (8) is rotated, the air foils (18) function to draw ambient air and any entrained dust/debris into the brush structure with the resultant air streams directed to the radial fan structure, which, in turn, directs the dust/debris laden air stream to the outlet (23).