| 摘要 |
A puck is provided for releasably gripping a closure element to be moved along a predetermined path and mated to a container. The puck includes a main body and a gripper assembly associated with the main body for releasably gripping the closure element. The gripper assembly comprises first and second opposing arms connected to the main body. The first arm has two first gripper members mounted thereto and the second arm has two second gripper members mounted thereto. The first and second arms are movable between a retracted position and a gripping position. The first gripper members are rotatable for effecting rotation of the closure element to permit the closure element to be mated to the container. The gripper assembly further includes first and second spring-biased support members connected to the first and second arms for movement between first and second positions. The first and second support members define a shelf when positioned in the first position for supporting the closure element when the closure element comprises a cap and is movable to the second position by the closure element when the closure element comprises a sprayer head.
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