US 8,864,049 B2Granted

Rotary atomizer with a spraying body

AssigneeDürr Systems AG

InventorsHans-Jurgen Nolte, Harry Krumma, Frank Herre, Michael Baumann, Marcus Frey, Rainer Melcher, Eberhard Streisel, Bernhard Seiz, Peter Marquardt

Life of this patent

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Abstract

A rotary sprayer for a coating apparatus is disclosed. An exemplary rotary sprayer may include a spraying body configured to be mounted on a drive shaft of a drive motor for rotation with the drive shaft. The spraying body may further include a detachable mounting device for coaxial connection of the spraying body to the drive shaft. The detachable mounting device may include a spraying body thread that mates with a driveshaft thread defined by the drive shaft, and a plurality of elastic tabs configured to abut a corresponding cavity defined by the driveshaft, such that rotation of the spraying body increases an abutment force between the elastic tabs and the corresponding cavity of the driveshaft.

Claims8

Dependent claims

A rotary sprayer, comprising:

a spraying body configured to be mounted on a drive shaft of a drive motor for rotation with the drive shaft, the spraying body including a detachable mounting device for coaxial connection of the spraying body to the drive shaft,
wherein the detachable mounting device includes a releasable fastening mechanism configured to fasten the spraying body to the drive shaft, and
wherein the spraying body and the drive shaft form outer and inner elements, and on an outer surface of the inner element, one or more radially movable locking elements are arranged, such that the locking elements are pushed by a centrifugal force into radially adjacent recesses of the outside element upon rotation of the rotary sprayer, thereby preventing a relative axial movement of the inner and outer elements.

Dependencies are inferred from the claim text.

Facts

Application: 12/692,067Filed 22 Jan 2010 · continuation in part
Priority: 21 Oct 2005
Published: US 2010/0206962 A119 Aug 2010
Granted: 21 Oct 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B05B 3/1035
Discharging over substantially the whole periphery of the rotating member: driving means; Parts thereof, e.g. turbine, shaft, bearings
B05B 3/001
Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements: incorporating means for heating or cooling, e.g. the…
B05B 3/1042
Driving means; Parts thereof, e.g. turbine, shaft, bearings: means for connecting, e.g. reversibly, the rotating spray member to its driving shaft
B05B 15/65
Arrangements for mounting, supporting or holding spraying apparatus: mounting arrangements for fluid connection of the spraying apparatus or its…

Family

Application60/729,444Us provisional application · filed 21 Oct 2005
Application11/551,699Parent of this continuation-in-part · filed 20 Oct 2006
US 7,654,472 B2Parent of this continuation-in-part · filed 2 Feb 2010
US 2010/0206962 A1Pre-grant publication · published 19 Aug 2010
US 2007/0090204 A1Published application
US 8,794,541 B2Related patent
US 8,864,049 B2This patent

From the US filing history. Foreign family members aren’t listed.