Patent ID: 6837024
Filing Date: 2005-01-04
Classification: B65B

Abstract:
1. An apparatus for automatically and continuously forming envelopes ( 51 ) to contain filter bags ( 1 ) for an infusion product, the apparatus comprising means ( 60 ; 129 , 131 ) for forming the envelopes, designed to make on a web ( 126 ) of packaging material moving along a predetermined feed path ( 174 ) a longitudinal fold line delimiting two adjacent flaps ( 127 ) defining an interposed opening through which the web ( 126 ) can be laterally accessed by the filter bags ( 1 ); manipulating means ( 123 , 148 , 128 ) designed to receive the filter bags ( 1 ) in succession, in a first orientation, to turn the filter bags to a second orientation so that the filter bags lie in a plane substantially parallel to the web flaps ( 127 ) and to move the filter bags ( 1 ) along a feed path ( 62 a , 62 b , 62 c ) having at least one end section ( 62 c ) that is substantially centered relative to the web flaps ( 127 ), the filter bags ( 1 ) moving along this end section ( 62 c ) in the same direction as the web ( 126 ), the manipulating means being designed to release the filter bags ( 1 ) in such a way as to place the filter bags between the flaps ( 127 ) of the web ( 126 ).