Manually guided suction device or blower
AssigneeAndreas Stihl AG & Co. KG
InventorsJochen Kramer, Karl-Heinz Lange
Life of this patent
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Abstract
A manually guided suction device or blower is provided that has a housing in which is formed a spiral blower path in which is disposed an impeller that is rotatably driven by a drive motor. The spiral blower path has an air-conveying air inlet and an air-withdrawing outlet. A connector is provided for the detachable connection of an air-conveying connection conduit, whereby when the connection conduit is mounted it overlaps with the connector, which is secured to the housing, over a prescribed axial length. To achieve a mechanically secure connection, an annular sealing element is held in a groove in a surface of the connector or connection conduit in the overlap region, wherein over the entire circumference thereof, the sealing element projects beyond such surface.
Claims8
A manually guided suction device or blower comprising:
- a housing in which is formed a spiral blower path in which is disposed an impeller that is rotatably driven by a drive motor, wherein said housing has an air inlet for conveying air to said spiral blower path, and an air outlet for withdrawal of air from said spiral blower path;
- a connector secured to said housing at said air outlet;
- a connection conduit for conveying air, wherein said connection conduit is detectably connectable to said connector such that they overlap one another over a prescribed axial length that forms an overlap region, wherein in said overlap region one of said connection conduit and said connector is provided with a groove in a surface thereof;
- and
- an annular sealing element disposed in said groove wherein over an entire circumference thereof said sealing element projects beyond said surface in which said groove is provided.
Dependencies are inferred from the claim text.