Wet-dry vacuum cleaning apparatus

Claim 2

Wet-dry vacuum cleaning apparatus comprising a hollow vacuum tube having a head at one end, a discharge nozzle supported by said head, an assembly attached to said tube, said assembly including a valve having an inlet conduit and a container, an outlet on said valve being connected to said nozzle, means for causing liquid to flow into said inlet conduit from said container for mixing with water upstream of said valve, and means for selectively permitting water to flow from said conduit into said container while said container is supported by said assembly.

Claim 3

Apparatus in accordance with claim 1 including valve means independent of said first mentioned valve for selectively controlling flow from said container to said inlet conduit.

Claim 4

Apparatus in accordance with claim 1 including a removable transparent or translucent face plate on said head, said face plate being coupled to said head with a snap-on connection so that it may be readily removed for cleaning and then replaced.

Claim 5

Wet-dry vacuum cleaning apparatus comprising a hollow vacuum tube having a head at one end, a discharge nozzle supported by said head, an assembly attached to said tube, said assembly including a valve having an inlet conduit and a container, said valve having an outlet connected to said nozzle, means for causing liquid to flow into said inlet conduit from said container for mixing with water upstream of said valve, a removable face plate on said head, said face plate being transparent and coupled to said head with a snap-on connection.

Claim 6

Wet-dry vacuum cleaning apparatus comprising a hollow vacuum tube having a head at one end, a discharge nozzle supported by said head, an assembly attached to said tube, said assembly including a valve having an inlet conduit and a container, said valve having an outlet connected to said nozzle, means for causing liquid to flow into said inlet conduit from said container for mixing with water upstream of said valve, a removable face plate on said head, said face plate being transparent and coupled to said head with a snap-on connection.

Claim 7

Apparatus in accordance with claim 4 including means for selectively permitting water to flow from said inlet conduit into said container while the container is supported by a said assembly, and valve means for selectively controlling flow from said container to said inlet conduit so that said valve and valve means may cooperate to selectively control flow of water to said nozzle and flow of water and a liquid from said container to said nozzle.

Claim 8

Apparatus in accordance with claim 5 wherein said container communicates with said inlet conduit by way of a conduit made from flexible deformable material, said valve means being adapted to control flow through said last-mentioned conduit by deforming the same.

Claim 9

Apparatus in accordance with claim 4 wherein said container is rectangular and removably attached to said assembly adjacent the upper end of the container, the lower end of the container having an angled wall forming an acute angle with the longitudinal axis of said vacuum tube.

Claim 10

Wet-dry vacuum cleaning apparatus comprising a hollow vacuum tube having a head at one end, a discharge nozzle supported by said head, a split housing embracing a portion of said tube remote from said head, said housing having a valve therein, said valve having an inlet conduit within said housing, a container removably attached to a lower end portion of said housing, an outlet of said valve connected to said nozzle, an actuator for said valve, said actuator being supported by said housing and spring biased to a position corresponding to a closed position of said valve, means for selectively causing liquid to siphon into said inlet conduit from said container for mixing with water upstream of said valve as a result of water flowing through said valve.

Claim 11

Wet-dry vacuum cleaning apparatus comprising a hollow vacuum tube having a head at one end, a discharge nozzle supported by said head, a split housing embracing a portion of said tube remote from said head, said housing having a valve therein, said valve having an inlet conduit within said housing, a container removably attached to a lower end portion of said housing, an outlet of said valve connected to said nozzle, an actuator for said valve, said actuator being supported by said housing and spring biased to a position corresponding to a closed position of said valve, means for selectively causing liquid to siphon into said inlet conduit from said container for mixing with water upstream of said valve as a result of water flowing through said valve.

Claim 12

Apparatus in accordance with claim 8 including a removable transparent or translucent face plate on said head, said face plate being coupled to said head with a snap-on connection so that it may be readily removed for cleaning and then replaced.

Claim 13

Apparatus in accordance with claim 9 including means in said housing for selectively permitting water to flow from said inlet conduit into said container while the container is supported by a said assembly.

Claim 14

Apparatus in accordance with claim 10 wherein said container is rectangular in section and removably attached to said housing adjacent the upper end of the container, the lower end of the container having an angled wall forming an acute angle with the longitudinal axis of said vacuum tube.

Claim 15

Apparatus in accordance with claim 8 where said housing is split along a parting line, said inlet conduit being aligned with said parting line and terminating in an adapter at one end remote from said valve for connecting a hose to said inlet conduit.