Patent ID: 7401447
Filing Date: 2008-07-22
Classification: B65B,Y10S

Abstract:
1. A closer for pressing a lid onto a container, comprising: (a) a presser foot mounted for movement into and out of force applying engagement with the lid; (b) an actuator moveable between retracted and extended positions; (c) a force multiplying assembly disposed in operative relationship intermediate the presser foot and the actuator, and adapted to multiply an input force from the actuator to a predetermined maximum lid pressing force at the extended position, wherein the force multiplying assembly includes: (d) a reciprocating shaft connected to the presser foot and adapted to be driven by the actuator; and (e) an elastic member interconnecting the shaft and the force multiplying assembly such that the lid pressing force is proportional to the displacement of the elastic member; and wherein the cam follower is disposed between the cam and the elastic member.