Patent ID: 8108964
Filing Date: 2012-02-07
Classification: E01H

Abstract:
1. A sealed pick-up head for a mobile sweeper, said sealed pick-head comprising: a housing defining a substantially hollow interior and having a front, a back, a left end and a right end, atop and a bottom, and a suctioning bottom opening for suctioning dust and small debris into said substantially hollow interior of said housing; a suctioning front opening disposed in the front of said housing for receiving debris into said substantially hollow interior of said housing, in debris receiving relation with respect to a surface being cleaned; a door frame surrounding said suctioning front opening; a rotatable door means having at least a first door portion and a second door portion joined together at a central pivot axis, and operatively mounted at said central pivot axis in rotatable relation on said pick-up head at said suctioning front opening; sealing means operatively disposed between said rotatable door means and said door frame for sealing said rotatable door means with respect to said door frame, to thereby substantially preclude air from ingressing into said substantially hollow interior of said housing through said suctioning front opening, as said rotatable door means rotates to permit debris to enter the substantially hollow interior of said housing; and, a dust and debris outlet in said housing for permitting dust and debris to be suctioned from said substantially hollow interior of said housing into a hopper.