Patent ID: 7568638
Filing Date: 2009-08-04
Classification: B05B

Abstract:
1. A gravity cup for a paint spray gun, comprising: a reservoir having a top and a bottom and having a side wall and a bottom wall with a ventilation hole formed in one of said walls; a lid placed on said reservoir and having a connecting part for attaching the gravity cup on a paint spray gun or an adapter; a sliding valve member including a valve housing having an open end mounted on said one wall and defining a valve seat in the end thereof opposite the open end in communication with said ventilation hole via a ventilation channel, and a slide slidably received in said valve housing, said slide having a valve element; wherein said slide is displaceable in said valve housing in a direction at least approximately parallel to said one wall between a first valve position in which the valve element of said slide is seated against the valve seat and thus closes the ventilation channel and a second valve position in which the valve element of said slide is unseated from the valve seat and thus opens the ventilation channel so that a pressure compensation between the interior of the reservoir and ambient is enabled.