Suction cleaner shag rug nozzle convertor

Claim 2

Suction cleaner shag rug nozzle construction including a laterally elongated base having front and rear portions; a plurality of laterally spaced subnozzles extending downwardly from the base and each extending between the front and rear base portions; said subnozzles each having a bottom wall sloping downwardly rearwardly from front to rear of the base; the bottom wall being formed with an elongated suction slot; each subnozzle being formed with an enlarged internal chamber communicating between said slot and a source of suction; and wheel means having rug contacting surfaces adapted to be spaced below the subnozzle bottom walls mounted on the base for movement over the surface of a shag rug to be cleaned; whereby as the base is moved on said wheel means back and forth over a shag rug the wheel means hold the subnozzles out of contact with the rug backing, the subnozzles separate and comb the shag fibers, and suction air currents drawn into the subnozzle slots circulate through and along the shag fibers free of sealing of the shag fibers in and around the slots due to the slope of the subnozzle bottom walls thereby permitting easy movement of the nozzle construction over a shag rug being cleaned.

Claim 3

The construction defined in claim 1 in which the subnozzles have rounded, tapered, streamlined side walls.

Claim 4

The construction defined in claim 2 in which the rounded streamlined subnozzle side walls form the enlarged internal chamber, and in which the slot and chamber walls have a venturi-like shape, whereby suction air is drawn through said slots at high velocity.

Claim 5

The construction defined in claim 3 in which the rounded subnozzle side walls are convexly curved.

Claim 6

The construction defined in claim 3 in which the rounded subnozzle side walls are concavely curved.

Claim 7

The construction defined in claim 2 in which the streamlined side walls have front and rear ends formed with rounded post-like guides.

Claim 8

The construction defined in claim 6 in which the guides have bottom surfaces spaced the same distance from the base; and in which one of the guide bottom surfaces is located below the front end of the slot in the sloping bottom wall, and the other guide bottom surface is located above the rear end of the slot in the sloping bottom wall, whereby the guides separate the pile fibers in a comb-like manner as the subnozzles move back and forth through the shag rug pile.

Claim 9

The construction defined in claim 6 in which the rear end of the bottom and side walls of each subnozzle is formed with a rearwardly opening recess communicating with the slot and chamber.

Claim 10

The construction defined in claim 8 in which the rear guide has a bottom surface and in which the recess is located adjacent the rear guide bottom surface.

Claim 11

The construction defined in claim 1 in which the base has upper and lower surfaces, in which the subnozzles extend downwardly from the lower base surface, and in whicH frame means are provided at the upper base surface for detachable connection with the main nozzle of a suction cleaner.

Claim 12

The construction defined in claim 10 in which the frame means includes hook and spring clip means for detachable connection with the main nozzle of a suction cleaner.

Claim 13

Suction cleaner shag rug nozzle construction including a main cleaner nozzle, a convertor detachably connected with the main nozzle; said convertor including a laterally elongated base having front and rear portions; a plurality of laterally spaced subnozzles extending downwardly from the base and each extending between the front and rear base portions; said subnozzles each having a bottom wall sloping downwardly rearwardly from front to rear of the base; the bottom wall being formed with an elongated suction slot; each subnozzle being formed with an enlarged internal chamber communicating between said slot through said main nozzle to a source of suction; wheel means having rug contacting surfaces adapted to be spaced below the subnozzle bottom walls mounted on the base for movement over the surface of a shag rug to be cleaned; and means interconnecting the base and main nozzle forming the detachable convertor connection; whereby as the base is moved on said wheel means back and forth over a shag rug the wheel means hold the subnozzles out of contact with the rug backing, the subnozzles separate and comb the shag fibers, and suction air currents drawn into the subnozzle slots circulate through and along the shag fibers free of sealing of the shag fibers in and around the slots due to the slope of the subnozzle bottom walls thereby permitting easy movement of the nozzle construction over a shag rug being cleaned.

Claim 14

Suction cleaner shag rug nozzle construction including a main cleaner nozzle, a convertor detachably connected with the main nozzle; said convertor including a laterally elongated base having front and rear portions; a plurality of laterally spaced subnozzles extending downwardly from the base and each extending between the front and rear base portions; said subnozzles each having a bottom wall sloping downwardly rearwardly from front to rear of the base; the bottom wall being formed with an elongated suction slot; each subnozzle being formed with an enlarged internal chamber communicating between said slot through said main nozzle to a source of suction; wheel means having rug contacting surfaces adapted to be spaced below the subnozzle bottom walls mounted on the base for movement over the surface of a shag rug to be cleaned; and means interconnecting the base and main nozzle forming the detachable convertor connection; whereby as the base is moved on said wheel means back and forth over a shag rug the wheel means hold the subnozzles out of contact with the rug backing, the subnozzles separate and comb the shag fibers, and suction air currents drawn into the subnozzle slots circulate through and along the shag fibers free of sealing of the shag fibers in and around the slots due to the slope of the subnozzle bottom walls thereby permitting easy movement of the nozzle construction over a shag rug being cleaned.

Claim 15

The construction defined in claim 12 in which the subnozzles have rounded, tapered, streamlined side walls forming the enlarged internal chamber; in which the slot and chamber walls have a venturi-like shape; and in which the side walls have front and rear ends formed with rounded post-like guides.

Claim 16

The construction defined in claim 13 in which the rear end of the bottom and side walls of each subnozzle is formed with a rearwardly opening recess communicating with the slot and chamber; in which the rear guide has a bottom surface; and in which the recess is located adjacent the rear guide bottom surface.

Claim 17

The construction defined in claim 14 in which the front guide has a bottom surface; and in which the front and rear guide bottom surfaces are spaced the same distance below the base.

Claim 18

The construction defined in claim 15 in which the detachable convertor-nozzle connection comprises frame means mounted on the base, and hook and spring clip means on the frame means detachably engageable with the lips of the main cleaner nozzle.

Claim 19

A suction cleaner shag rug nozzle convertor cleaning attachment including a base; a plurality of subnozzle means connected to said base and extending downwardly therefrom; wheels mounted on the base to facilitate movement over a rug surface; said subnozzle means each having a sloped bottom wall formed with an elongated opening; and means on the base for detachably connecting the base to a main suction cleaner nozzle.

Claim 20

A suction cleaner shag rug nozzle convertor cleaning attachment including a base; a plurality of subnozzle means connected to said base and extending downwardly therefrom; wheels mounted on the base to facilitate movement over a rug surface; said subnozzle means each having a sloped bottom wall formed with an elongated opening; and means on the base for detachably connecting the base to a main suction cleaner nozzle.