Importance

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Abstract

A rotary atomiser spindle arrangement includes a rotary atomiser spindle having a shaft which is journaled for rotation in a main body of the rotary atomiser spindle and a bell cup releasably mounted on the shaft. The bell cup has a bell portion for spraying media during rotation in use and a mounting portion via which the bell cup is mounted on the shaft. The shaft and mounting portion of the bell cup include respective complimentary taper portions which form an interference fit with each other when the bell cup is mounted on the shaft so locating in the bell cup in relation to the shaft, wherein the rotary atomiser spindle arrangement includes a bell cup retention arrangement having retention biasing for urging the complimentary taper portions against one another when the bell cup and shaft are at a first relative rotational position with respect to one another whilst the bell cup retention arrangement allows at least demounting of the bell cup from the shaft when the bell cup and shaft are at a second relative rotational position with respect to one another. The bell cup retention arrangement includes latching mechanism for latching the bell cup and shaft in the first relative rotational position.

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First Claim