Apparatus for cleaning waste from a surface

摘要

An apparatus for removing waste material from a surface is provided. In an embodiment, the apparatus includes a vacuum suction head and a waste receptacle for storing waste material that are vacuumed through the suction opening head. The waste receptacle has a discharge port through which waste material stored within said waste receptacle may be discharged for emptying said waste receptacle. Chemical solution held in a fluid reservoir is pumped to one or more fluid nozzles to break up material during, before or prior to vacuuming.

主权项

1. An apparatus for clearing waste from a surface, comprising:
a vacuum suction head having a suction opening for accepting waste material; a waste receptacle for storing waste material that are vacuumed through said suction opening, said waste receptacle is removable from said apparatus, said waste receptacle having a discharge port through which waste material stored within said waste receptacle may be discharged for emptying said waste receptacle, said waste receptacle further having a neck opening opposite of said discharge port; a vacuum passage fluidically connecting said suction opening and said waste receptacle; a reversible vacuum pump in communication with said waste receptacle for alternately providing a vacuum on said waste receptacle and pressurizing said waste receptacle; a vacuum passage valve disposed across said vacuum passage, said vacuum passage valve operable to alternately permit or preclude a flow through said vacuum passage; a waste receptacle discharge valve disposed across said discharge port, said waste receptacle discharge valve operable to alternately permit or preclude a flow through said discharge port; a fluid reservoir for holding a quantity of liquid; a pump fluidically connected to said fluid reservoir and operable to pump liquid therefrom; a fluid passage connected at one end to said pump for receiving pumped liquid; one or more first spray nozzles fluidically connected to said fluid passage and configured and disposed to spray a fluid from said fluid passage on to an exterior surface of said suction head for cleaning debris therefrom; one or more second spray nozzles fluidically connected to said fluid passage and configured and disposed to spray a fluid from said fluid passage at said suction opening; a spray nozzle selector valve operable to selectively and alternately permit or preclude a flow through said first spray nozzle and concurrently through said one or more second spray nozzles and one or more third spray nozzles; a spray head fluidically connected to said fluid passage and configured and disposed to spray a fluid from said fluid passage within said waste receptacle for flushing the interior thereof; a spray head valve operable to alternately permit or preclude a flow through said spray head; a discharge port spray nozzle fluidically connected to said fluid passage and configured and disposed to spray a fluid from said fluid passage into said discharge port; a discharge port spray nozzle valve operable to alternately permit or preclude a flow through said discharge port spray nozzle; a vacuum passage spray nozzle fluidically connected to said fluid passage and configured and disposed to spray fluid from said fluid passage into said vacuum passage at location intermediate said suction head and said waste collection receptacle; and a vacuum passage spray nozzle valve operable to alternately permit or preclude a flow through said vacuum passage spray nozzle.