Double lid system

Details Double lid system Double lid system

1997-07-14

1999-01-12

Johnson, Linda

Package making

Package unfolding or opening with insertion of additional...

53 75, 53507, 53170, 53319, 53321, 53330, 220259, 220323, B65B 728, B65B 4340

Patent

active

058573089

ABSTRACT:
A double lid system is provided with an electric motor (44) to actuate mechanisms to release the lid (20) from a drum (18) and simultaneously clamp the lid (20) to a door (14) of a port (or vice versa), and with an electric motor (74) to withdraw the door (14) from the port to open the port (or to close it). The system is monitored by sensors (60,62,64,82) associated with an electronic logic interlock to ensure the correct sequence of operations of the motors (44,74). The sensors (60,62,64,82) and the motors (44,74) are readily demountable for remote maintenance or replacement. The door-opening motor (74) may he a linear actuator cooperating with a part-helical slot (80) to open the door (14) and then swing it clear of the port.

REFERENCES:
patent: 3243936 (1966-04-01), Anderson
patent: 4494586 (1985-01-01), Picard
patent: 4519519 (1985-05-01), Meuschke et al.
patent: 4580694 (1986-04-01), Hempelmann et al.
patent: 4643328 (1987-02-01), Lorenzelli et al.
patent: 4693278 (1987-09-01), Wilson et al.
patent: 4883637 (1989-11-01), McDaniels
patent: 5287676 (1994-02-01), Erbse et al.

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