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US 6,295,694 B1Granted
Apparatus for carrying a fluid flow
AssigneeNotetry Limited
InventorsJames Dyson, Alexander Stuart Knox, Michael David Ganderton
Life of this patent
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AssigneeNotetry Limited
InventorsJames Dyson, Alexander Stuart Knox, Michael David Ganderton
Estimating the term…
The invention provides an apparatus for carrying a fluid flow having at least one fluid inlet, at least one fluid outlet, a plurality of alternative fluid flow paths therebetween and valve for selecting one of the said fluid flow paths to carry a fluid flow from the or a fluid inlet to the or a fluid outlet, wherein the said valve (14) and at least part of the said alternative fluid flow paths (26, 70) are housed within a removable portion (10) of the apparatus to facilitate maintenance. Preferably, seals (32) are provided between the removable portion (10) and the remainder of the apparatus, the seals (32) being either carried by the removable portion (10) or exposed for access by removal of the removable portion (10). This arrangement facilitates removal of blockages and replacement of seals.
A vacuum cleaner, comprising:
A vacuum cleaner having two air inlets, at least one air outlet and a plurality of alternative airflow paths therebetween, a first of the two air inlets being, formed by a cleaner head of the vacuum cleaner and a second of the two air inlets being formed by a hose or wand, the vacuum cleaner further comprising a valve movable between a first position in which the first air inlet is open, and a second position in which the first air inlet is closed, the valve being moved between the first and the second positions automatically during normal operation of the vacuum cleaner, said valve and at least part of each of said alternative airflow paths being housed within a removable portion of the vacuum cleaner to facilitate maintenance, and seals are provided between the removable portion and the remainder of the vacuum cleaner.
A vacuum cleaner having a plurality of operational positions, comprising:
Dependencies are inferred from the claim text.