Lightweight battery powered suction broom

Claim 2

In a vacuum cleaner assembly comprising a hollow nozzle assembly, a vacuum pump, a filter, and means for directing air from said nozzle assembly to said pump by way of said filter bag, the improvement wherein said vacuum cleaner assembly further comprises a mounting frame, a mounting arrangement for mounting said pump and nozzle assembly in spaced apart relationship to said mounting frame, and said directing means comprises a canister removably mounted to said mounting frame between said nozzle assembly and pump and having a longitudinal recess extending along one edge thereof, said filter bag being removably held in said canister, said mounting frame extending in said recess and inhibiting relative rotation of said canister about its longitudinal axis.

Claim 3

The vacuum cleaner of claim 1 wherein said directing means further comprises a hollow mounting assembly mounted on said frame, and said nozzle assembly is pivotally mounted on said mounting assembly, whereby air from said nozzle assembly passes through said hollow mounting assembly.

Claim 4

In a vacuum cleaner assembly comprising a hollow nozzle assembly, a vacuum pump, a filter bag, and means for directing air from said nozzle assembly to said pump by way of said filter bag, the improvement wherein said vacuum cleaner assembly further comprises a mounting frame, a mounting arrangement for mounting said pump and nozzle assembly in spaced apart relationship to said mounting frame, and said directing means comprises a canister removably mounted to said mounting frame between said nozzle assembly and pump, said filter bag being removably held in said canister, said directing means further comprising a hollow mounting assembly mounted on said frame, said nozzle assembly being pivotally mounted on said mounting assembly, whereby air from said nozzle assembly passes through said hollow mounting assembly, one end of said canister being removably received in a recess in said hollow mounting assembly, and further comprising a power assembly housing containing said vacuum pump, and a latching arrangement on said power assembly housing positioned to releasably hold said canister to said mounting frame, whereby upon release of said latching arrangement said canister may be removed from said recess by rotating said end of said canister with respect to said mounting assembly.

Claim 5

In a vacuum cleaner assembly comprising a hollow nozzle assembly, a vacuum pump, a filter bag, and means for directing air from said nozzle assembly to said pump by way of said filter bag, the improvement wherein said vacuum cleaner assembly further comprises a mounting frame, a mounting arrangement for mounting said pump and nozzle assembly in spaced apart relationship to said mounting frame, and said directing means comprises a canister removably mounted to said mounting frame between said nozzle assembly and pump, said filter bag being removably held in said canister, said directing means further comprising a hollow mounting assembly mounted on said frame, said nozzle assembly being pivotally mounted on said mounting assembly, whereby air from said nozzle assembly passes through said hollow mounting assembly, one end of said canister being removably received in a recess in said hollow mounting assembly, and further comprising a power assembly housing containing said vacuum pump, and a latching arrangement on said power assembly housing positioned to releasably hold said canister to said mounting frame, whereby upon release of said latching arrangement said canister may be removed from said recess by rotating said end of said canister with respect to said mounting assembly.

Claim 6

A portable vacuum cleaner comprising a frame, a hollow mounting arrangement and a power assembly fixedly mounted in spaced apart relationship on said frame, said power assembly including a vacuum pump, a filter assembly including a canister having a longitudinal recess extending along one side thereof, said canister being removably fitted between said mounting arrangement and said power assembly with said frame extending in said recess whereby said vacuum pump draws air through said mounting arrangement means and canister to said vacuum pump when said canister is fitted between said mounting arrangement and power assembly, and a hollow nozzle mounted on said mounting arrangement.

Claim 7

A portable vacuum cleaner comprising a frame, a hollow mounting arrangement and a power assembly fixedly mounted in spaced apart relationship on said frame, said power assembly including a vacuum pump, a filter assembly including a canister having a longitudinal recess extending along one side thereof, said canister being removably fitted between said mounting arrangement and said power assembly with said frame extending in said recess whereby said vacuum pump draws air through said mounting arrangement means and canister to said vacuum pump when said canister is fitted between said mounting arrangement and power assembly, and a hollow nozzle mounted on said mounting arrangement.

Claim 8

The portable vacuum cleaner of claim 4 wherein said nozzle is mounted on said mounting arrangement for limited pivotal movement.

Claim 9

The portable vacuum cleaner of claim 4 wherein said mounting arrangement comprises a mounting cylinder having a duct extending transversely therethrough, and said nozzle is pivotally held on said mounting cylinder, whereby air from said nozzle is directed through said cylinder to said vacuum pump.

Claim 10

The portable vacuum cleaner of claim 6 wherein said nozzle is comprised of upper and lower nozzle sections fitted together around said mounting cylinder, and each having arcuate sealing surfaces engaging said mounting cylinder.

Claim 11

The portable vacuum cleaner of claim 4 wherein said frame comprises an elongated support, said mounting arrangement comprising a hollow element on one end of said elongated support, said power assembly comprising a power assembly housing on the other end of said elongated support.

Claim 12

The portable vacuum cleaner of claim 8 wherein said power assembly housing has an end facing said mounting arrangement that is inclined to the longitudinal direction of said elongated support and away from said mounting arrangement.

Claim 13

The portable vacuum cleaner of claim 9 wherein at least a portion of one end of said canister is removably received in a recess in the end of said mounting arrangement facing said power assembly and has an end face sealingly engaging said end of said power assembly.

Claim 14

The portable vacuum cleaner of claim 8 wherein one end of said canister longitudinally engages a recess in the end of said mounting arrangement facing said power assembly, further comprising a latching arrangement holding the other end of said canister to said power assembly.

Claim 15

The portable vacuum cleaner of claim 11 further comprising a filter bag removably held in said other end of said canister, said filter bag having a seal engaging said power assembly.

Claim 16

The portable vacuum cleaner of claim 12 wherein said canister further includes a flap valve mounted to inhibit flow of air in the direction away from said vacuum pump.

Claim 17

The portable vacuum cleaner of claim 4 wherein said hollow nozzle has a lower surface adapted to be drawn across a surface to be cleaned, and a recess extending transversely across said lower surface, said nozzle further having a duct extending from said recess to said hollow mounting arrangement.

Claim 18

The portable vacuum cleaner of claim 14 wherein said lower surface of said nozzle has front corners, and said recess extends adjacent said front corners.

Claim 19

The portable vacuum cleaner of claim 14 wherein wheels are mounted in said lower surface for engaging a surface to be cleaned.

Claim 20

The portable vacuum cleaner of claim 4 wherein said power assembly comprises a housing, a mounting recess in said housing for receiving a mounting projection to enable mounting said vacuum cleaner on a wall, said vacuum pump including a motor, a battery for energizing said motor, a charging circuit for charging said battery, and a connector in said recess and connected to said charging circuit for enabling charging of said battery.

Claim 21

In a vacuum cleaner assembly comprising a hollow nozzle assembly, a vacuum pump, a filter bag, and means for directing air from said nozzle assembly to said pump by way of said filter bag, the improvement wherein said vacuum cleaner assembly further comprises a mounting frame, a mounting arrangement for mounting said pump and nozzle assembly in spaced apart relationship to said mounting frame, said directing means comprising a canister removably mounted to said mounting frame between said nozzle assembly and pump, said filter bag being removably held in said canister, said nozzle assembly being pivotally mounted to said mounting arrangement and having a lower surface, a duct forming part of the directing means and extending centrally through said lower surface and communicating with said canister by way of said mounting assembly, at least one ground engaging wheel having a fixed axis and mounted forwardly of said duct, and at least one ground engaging wheel having a fixed axis and mounted rearwardly of said duct, the axis of pivoting of said nozzle being parallel to and in a vertical plane between the axis of the wheels, said nozzle assembly comprising upper and lower nozzle portions, said lower surface being the lower surface of said lower nozzle portion, said mounting arrangement comprising a mounting cylinder having a transversely extending port, said upper and lower nozzle portions having semicylindrical surfaces rotatably engaging said mounting cylinder for pivotally mounting said nozzle on said mounting cylinder with said duct communicating with said port.

Claim 22

In a vacuum cleaner assembly comprising a hollow nozzle assembly, a vacuum pump, a filter bag, and means for directing air from said nozzle assembly to said pump by way of said filter bag, the improvement wherein said vacuum cleaner assembly further comprises a mounting frame, a mounting arrangement for mounting said pump and nozzle assembly in spaced apart relationship to said mounting frame, said directing means comprising a canister removably mounted to said mounting frame between said nozzle assembly and pump, said filter bag being removably held in said canister, said nozzle assembly being pivotally mounted to said mounting arrangement and having a lower surface, a duct forming part of the directing means and extending centrally through said lower surface and communicating with said canister by way of said mounting assembly, at least one ground engaging wheel having a fixed axis and mounted forwardly of said duct, and at least one ground engaging wheel having a fixed axis and mounted rearwardly of said duct, the axis of pivoting of said nozzle being parallel to and in a vertical plane between the axis of the wheels, said nozzle assembly comprising upper and lower nozzle portions, said lower surface being the lower surface of said lower nozzle portion, said mounting arrangement comprising a mounting cylinder having a transversely extending port, said upper and lower nozzle portions having semicylindrical surfaces rotatably engaging said mounting cylinder for pivotally mounting said nozzle on said mounting cylinder with said duct communicating with said port.

Claim 23

A portable vacuum cleaner comprising a frame, a hollow mounting arrangement and a power assembly fixedly mounted in spaced apart relationship on said frame, said power assembly including a vacuum pump, a filter assembly including a canister removably fitted between said mounting assembly and said power assembly whereby said vacuum pump draws air through said mounting arrangement and canister to said vacuum pump when said canister is fitted between said mounting arrangement and power assembly, a hollow nozzle mounted on said mounting arrangement, said mounting arrangement having a rearwardly extending rim defining a recess for receiving the forward end of said canister, said power assembly having a forward surface for engaging the rear end of said canister that is inclined to the longitudinal axis of said cleaner, a latch mounted to releasably hold the rear end of said canister to said power assembly, whereby said canister may be removed from said vacuum cleaner by release of said latch and rotational movement of the canister in one direction with respect to said recess, and means inhibiting removal of said canister from said vacuum cleaner in all other directions.

Claim 24

A portable vacuum cleaner comprising a frame, a hollow mounting arrangement and a power assembly fixedly mounted in spaced apart relationship on said frame, said power assembly including a vacuum pump, a filter assembly including a canister removably fitted between said mounting assembly and said power assembly whereby said vacuum pump draws air through said mounting arrangement and canister to said vacuum pump when said canister is fitted between said mounting arrangement and power assembly, a hollow nozzle mounted on said mounting arrangement, said mounting arrangement having a rearwardly extending rim defining a recess for receiving the forward end of said canister, said power assembly having a forward surface for engaging the rear end of said canister that is inclined to the longitudinal axis of said cleaner, a latch mounted to releasably hold the rear end of said canister to said power assembly, whereby said canister may be removed from said vacuum cleaner by release of said latch and rotational movement of the canister in one direction with respect to said recess, and means inhibiting removal of said canister from said vacuum cleaner in all other directions.