US 12,366,101 B2Granted

Magnetically operated closing device for controlled contamination equipment

AssigneeDe Lama S.P.A.

InventorsAndrea Muggiasca, Paolo Bianchi

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Abstract

A linear stem (3) guides a sliding door (11), which is dragged by a magnetic drive unit between an operating position (W), in which it covers and closes an access mouth (20) to an internal compartment (21) of a sterilizer (1), and an inoperative or opening (N), in which the door (11) moves to a position next to the access mouth (20), thus making it accessible from the outside. The sliding door (11) is operated by movement members (5), comprising a linear module (50), adapted to house a transmission belt (52) stretched between two return wheels (53), one of which is driven by an electric gearmotor (54); a branch of the transmission belt (52) carries a slider (55) with a permanent magnet (56), facing a magnetic plate (6) fixed to the sliding door (11) which is dragged by the magnetic field generated by the cursor (55) in motion.

Claims11

Dependent claims

A closing device for a controlled contamination device provided with environments that can be isolated from the outside, said contamination device having an internal compartment accessible by at least one access port, said closing device comprising a sliding door made with linear surfaces in a box shape and a drive unit, said closing device further comprising:

at least one cylindrical rod supported on the outside of a frame of said controlled contamination device, said cylindrical rod constituting a linear guide on which said sliding door is engaged so that the sliding door is movable between an operative position, in which the sliding door is covering an access mouth, sealing said compartment, and an inoperative position, in which the sliding door is uncovering the access mouth, unsealing said compartment;
wherein the drive unit comprises magnetic movement members associated with said frame and in turn comprising a slider a slider made with at least one magnet movable, parallel to said at least one cylindrical rod with reciprocating motion;
said drive unit further comprising a magnetic plate made integral with said sliding door for being dragged by said slider due to a magnetic field generated during movements of said slider.

Dependencies are inferred from the claim text.