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US 5,028,004 AGranted
Nozzle head
OwnerPaul Hammelmanninventor
Life of this patent
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Abstract
A nozzle head comprises an immovable housing provided with a pressure water connection, a nozzle support rotatable about an axis in the housing, a rotatable hollow shaft connected with the nozzle support and having a central opening, a sleeve arranged in the central opening of the hollow shaft and sealed relative to the latter, and a suction hood provided with a suction pipe and having an upper end mounted on the housing and a lower end having a seal to be supported on a surface to be cleaned.
Claims13
A nozzle head, comprising an immovable housing provided with a pressure water connection;
- a nozzle support rotatable about an axis in said housing;
- at least one nozzle provided on said support and having a nozzle opening;
- a rotatable hollow shaft connected with said nozzle support and having a central passage;
- a sleeve arranged in said central passage of said hollow shaft and sealed relative to the hollow shaft;
- a suction hood provided with a suction pipe and having an upper end mounted on said housing and a lower end opening to a surface to be cleaned and having a seal to be supported on the surface to be cleaned;
- and means for preventing direct contact of said nozzle opening with the surface to be cleaned said means for preventing a spacer ring arranged to define a space between the nozzle support and the surface to be cleaned and outwardly offset relative to a lower face of said nozzle support;
- and a support web connecting said spacer ring with the immovable housing.
4 more elements
Dependencies are inferred from the claim text.