Patent 6842942 was granted and assigned to The Hoover Company on January, 2005 by the United States Patent and Trademark Office.
A floor cleaning unit is provided. The floor cleaning unit includes a base for movement along the surface. A nozzle assembly is removably attached to the base for pick up and removal of liquid and dirt. Such attachment is accomplished by providing the nozzle assembly with a slide latch that slidably engages a channel formed in the base.