Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1985-09-12
1986-10-07
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15328, A47L 536
Patent
active
046150684
ABSTRACT:
Structure for converting a powered brush vacuum cleaner selectively to define a powder carpet cleaning apparatus. The conversion structure includes a shroud received within the nozzle. In one form, the shroud is movably mounted within the nozzle for selective disposition in a retracted position, permitting use of the nozzle in the normal vacuum cleaning manner, and in an operative position blocking the entrance to the suction passage for permitting the unit to be used as powder carpet cleaner. The shroud defines a smooth inner surface surrounding a portion of the brush for effectively preventing clogging of the space about the brush during the carpet cleaning operation. An opening is provided in the nozzle wall for access to the movable shroud in effecting manipulation thereof between the retracted and operative positions. In another form, the shroud is fixedly mounted within the nozzle and a closure is removably installed for closing the entrance to the suction passage when it is desired to use the unit as a carpet cleaner. In the illustrated embodiment, the closure includes a tongue received in a socket portion of the shroud in the installed arrangement. Provisions are made for accommodating bridging elements extending across the nozzle opening when necessary.
REFERENCES:
patent: 2601694 (1952-07-01), White
patent: 3184775 (1965-05-01), Downey et al.
patent: 3310828 (1967-03-01), Clark et al.
patent: 4204297 (1980-05-01), Yasunaga et al.
patent: 4457042 (1984-07-01), Jones et al.
Carr Keith E.
Martin William J.
Peterson Edward C.
Moore Chris K.
Whirlpool Corporation
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