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US 4,064,707 AGranted
Apparatus for pre-freezing substances of products intended to be pre-freezed
OwnerMario Connizzoli, Camillo Peviani +1inventors
InventorsMario Connizzoli, Camillo Peviani, Francesca Maietti
Life of this patent
Estimating the term…
Abstract
The freeze-drying of products, like foodstuffs or pharmaceuticals, and more particularly to a method and apparatus by which a plurality of containers is serially fed with a dosed amount of a first product after which the containers are passed in heat exchange relationship with a freezing bath and then further dosed amounts of different products are layered onto the firstly metered product and singularly pre-frozen, by passing through the same freezing bath.
Claims4
An apparatus for prefreezing substances or products intended to be freeze-dried, comprising in combination:
- a feeding means for feeding one at a time in row-like succession a plurality of containers to a metering station, said containers having a neck and a body, a metering means for introducing in each container a predetermined amount of substance or product, a tube adapted to contain a refrigerating fluid bath, a guiding and suspension means for the containers while they are being passed through said bath and thrust means to cause the containers to be advanced through the bath, said suspension and guiding means comprising at least one pair of parallel rods having substantially C-shaped cross-sections, said rods being arranged with the bent portions of each C facing those of the other C so as to form upper support means able to engage the neck of the containers and lower support means able to engage the body of the containers.
Dependencies are inferred from the claim text.