Patent ID: 6450370
Filing Date: 2002-09-17
Classification: B05C

Abstract:
A manually operated dispensing device for use with a double cartridge for dispensing two-component chemical systems having cylinders with different cross-section areas, the device comprising:a double thrust ram having teeth; and a return stop device having a locking slider acting on the teeth of the double thrust ram. a drive assembly acting on the double thrust ram and being actuated by a trigger lever, said drive assembly including: a drive member which comprises teeth acting on the teeth of the double thrust ram; and an arc compensating link being arranged between the drive member and the trigger lever, wherein the compensating link and at least portions of the trigger lever are offset proportionately to the reaction forces towards the cartridge container having the greater cross-section area, and wherein the rear end portion of the compensating link is loaded by one of a compression and a tension spring acting via a fulcrum pin which couples the compensating link to the drive member in order to maintain, during the advance movement, the teeth of the drive member in a meshing engagement with the teeth of the double thrust ram.