By Vacuum Patents (Class 99/454)
  • Patent number: 5146845
    Abstract: A cheese former for making large batches of cheese in a continuous process includes a tower having a screen along its internal side wall and a central screen extending along the axis of the tower, wherein whey may be separated from a curds and whey mixture introduced into the tower by drawing the whey through the screens toward both the perimeter of the tower and the central axis of the tower for removal from the system. This permits large quantities of cheese such as 600-650 pound blocks or 500 pound barrels to be made in a continuous tower forming system.
    Type: Grant
    Filed: August 7, 1991
    Date of Patent: September 15, 1992
    Assignee: Damrow Company, Inc.
    Inventor: Allen J. Pittelko
  • Patent number: 5082681
    Abstract: A curd and whey mixture is drained of loose whey on a conveyor and the dry curd fed into the top of a tubular perforated column (48,49) maintained under sub-atmospheric pressure to form a pillar of curd. A mass of curd severed from the lower end of the pillar is deposited in a mould (14) mounted on a turntable (13) rotatable to index the mould in succession at six pressing stations at each of which the curd is compressed for 45-120 seconds at a pressure of at least 4 bar in order to form a block of cheese with a rind firm enough to permit handling of the cheese block after ejection from the mould. At the first pressing station the curd is subjected to a sub-atmospheric pressure of -0.9 to -1.0 bar prior to compression. After the cheese block is ejected from the mould, the turntable returns the empty mould to the column for reception of another mass of curd.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: January 21, 1992
    Assignee: Alfa-Laval Cheese Systems Limited
    Inventors: Peter B. Barlow, Ole M. Christiansen
  • Patent number: 5001972
    Abstract: Cheese curd is compressed into blocks by feeding the curd into the top of a hollow tower having a perforated lining while the tower is at a sub-atmospheric pressure to form a pillar of curd supported on a guillotine blade at the bottom of the tower, the guillotine blade is then withdrawn, the pillar of curd lowered by an elevator, and the guillotine blade returned to the closed position so as to cut off a block of curd from the bottom of the pillar of curd. The tower comprises a tubular casing, and the perforated lining comprises a pre-form tube formed as an integral structure prior to the fitting of the tube into the tower. The tube is spaced from the wall of the tower to form a drainage passage for whey pressed out from the curd in the pillar by the weight of superimposed curd, the whey passing into the drainage passage through apertures in the tube.
    Type: Grant
    Filed: June 22, 1990
    Date of Patent: March 26, 1991
    Assignee: Alfa-Laval Cheese Systems Limited
    Inventors: Robert A. Greenfield, Peter B. Barlow
  • Patent number: 4901634
    Abstract: This invention relates to a vacuum seasoning device, which is compact in size and simple in structure, and comprises a main body casing which contains a vacuum pump mechanism consisting of a piston, cylinder, and the like arranged horizontally; and said main body is so rotatably supported by a support column that it can transpose itself from a horizontal position to a position where its front portion is slightly raised; and when it is positioned horizontally the base plate of the same hermetically contacts the upper opening edge of the pressure container placed below it, and sucks the air out of the container by means of the horizontal reciprocating movement of the piston, and vent through suction port arranged on the base plate, suction channel of aforementioned vacuum pump mechanism, and then through communicating section thereof.
    Type: Grant
    Filed: June 8, 1989
    Date of Patent: February 20, 1990
    Assignee: Ookawa Iron Works, Ltd.
    Inventors: Hiroyuki Kuwahara, Torazi Kimura
  • Patent number: 4898745
    Abstract: The present invention is directed to a method for making Pasta Filata cheese which has an extended shelf life. Pasta Filata curd is divided into pieces and the pieces are delivered to an auger conveyor. The curd is heated and worked in the auger conveyor while immersed in hot water to a plastic consistency as it passes through the conveyor. The plastic curd is transported through a steam injection heating zone and a static mixing zone to provide a homogeneous molten curd. The molten curd is transferred from the mixer through a holding conduit into a vacuum chamber so as to flash-cool the molten curd. The holding conduit has a diameter and length sufficient to hold the molten curd for a time and at a temperature which is sufficient to pasteurize and partially sterilize the molten curd. The holding conduit has a particular inner wall surface which is formed of a material with enhanced lubricity and reduced coefficient of friction as compared to stainless steel.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: February 6, 1990
    Assignee: Kraft, Inc.
    Inventors: William H. Zamzow, Anthony M. Miller
  • Patent number: 4817515
    Abstract: A cheese press for a plurality of rows of cheese moulds is constituted by a plurality of individual cassette shaped pressing units (30) each adapted to receive a row of moulds or mould batteries and each ceilingwise provided with pressing means (68) for pressing the moulds. Each of these units can be made as a lightweight construction e.g. of stainless sheet steel and is preferably made as a heat insulated tube, which is endwise closable so as to be vacuum resistent. Especially the production of Cheddar cheese is highly accelerated when the pressing is effected under vacuum. The cassette units may be arranged in a conveyor system for consecutive cooperation with a loading and unloading station, or they may be arranged more or less stationarily for cooperation with means for transporting the moulds to and from the cassette units.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: April 4, 1989
    Inventors: Poul Bjerre, Per Busk, Knud Gasbjerg, Curt Meinild
  • Patent number: 4809595
    Abstract: The invention relates to a plant for refining foodstuffs, adapted for implementation in a process wherein foodstuff is fed into a depressurized environment and refined therein, whereupon the refined end-product, and any waste matter separated during the process, are both drawn off. The plant comprises an environment in which a vacuum is created and maintained, such as will house conventional types of machinery which refine the foodstuff, separate any waste matter, and collect the end-product which is then drawn off by a pump. Such a plant serves in particular for extracting juice and purse from fruit, vegetable, and market garden produce in general, as well as for reducing meat of all kinds to a paste.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: March 7, 1989
    Inventor: Camillo Catelli
  • Patent number: 4735133
    Abstract: A device for heating and emulsifying milk, especially to prepare a white coffee drink known as "cappuccino" with the assistance of a steam jet, which has a vacuum chamber surrounding a nozzle and formed with an emulsion discharge port, a passageway for admitting sucked-in air, and at least one passageway for the milk which enters the chamber on account of the negative pressure prevailing therein, thereby milk, air, and steam are mixed together in said chamber and then made to flow out through said discharge port.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: April 5, 1988
    Assignee: Fulmine S.r.L.
    Inventor: Luciano Paoletti
  • Patent number: 4715274
    Abstract: An emulsifier unit particularly for emulsifying steam and milk to prepare "cappuccino's" comprises a steam delivery conduit in communication with a steam generator and opening into a suction chamber into which a milk delivery conduit is led, said suction chamber being in communication with an emulsifying chamber provided with an outward dispensing opening.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: December 29, 1987
    Assignee: SPIDEM S.r.l.
    Inventor: Luciano Paoletti
  • Patent number: 4603623
    Abstract: An installation for the production of cheeses, notably having lactic characters and of cheeses of the soft paste type, includes curdling basins each in the shape of a semi-sphere, devoid of inner equipment and provided with structure for ensuring the closing, transportation and handling thereof. A rotary metering device with several heads fills and meters milk into the basin. Vertical silos with an air-conditioned environment store of the basins during the entire duration of the time required for coagulation of the milk. A rotary device with several working heads cuts the curds, and vertical silos store the basins after the curd cutting operation. A device extracts the whey, and a molding machine with several heads molds the cheese. The transfer of the basins and of the plates supporting the molded cheeses is carried out with the assistance of automatic conveyor systems.
    Type: Grant
    Filed: August 29, 1984
    Date of Patent: August 5, 1986
    Inventors: Annick Le Guen, Joseph Moutarde
  • Patent number: 4539902
    Abstract: Cheese curd is fed into the top of a hollow perforated column in a tower at a sub-atmospheric pressure so as to form in the column a pillar of curd supported on a guillotine blade which closes off an opening in the bottom of the tower. A former unit below the tower has an upright open-ended cylinder sealed against the bottom of the tower, and an elevator within the cylinder. The guillotine blade is withdrawn, the pillar of curd lowered into the cylinder by the elevator, and the guillotine blade returned to its closed position so as to cut off a block of curd from the bottom end of the pillar of curd. The elevator is then forced upwards to compress the block of curd within the cylinder. The former unit is subsequently lowered, pivoted into a horizontal position, and the elevator driven along the cylinder to eject the block of curd.
    Type: Grant
    Filed: August 22, 1983
    Date of Patent: September 10, 1985
    Assignee: Alfa-Laval Cheese Systems Limited
    Inventors: Ian P. Brockwell, Herbert W. Hancock
  • Patent number: 4478519
    Abstract: An automatic paste-producing apparatus which includes a vertical assembly constituted by a tubular chamber whose upper end communicates with a metering tube of enlarged diameter to which flour or other powder is supplied. Coaxially mounted within the assembly is a rotating shaft having a main screw section of uniform diameter operating within the chamber and a conical screw section operating within the metering tube. Slidable within the metering tube is a ring which surrounds the conical screw section to define an annular valve orifice, the ring being axially shiftable to set the size of the orifice. The flour admitted into the chamber by the metering tube is hurled by the main screw section against the inner wall of the chamber to create a thin powder film thereon which is then intermixed with a liquid to form a paste, air being drawn from the chamber through the main screw section to control the entrainment of air within the paste.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: October 23, 1984
    Inventor: Raul Guibert
  • Patent number: 4382969
    Abstract: A method is disclosed for treating cheese, preferably cheese offcuts, to form a reconstituted block of cheese. The offcuts are first cut into small chips and then repressed in an evacuated environment to form the reconstituted block of cheese which may then be cut to commercially saleable sizes and packaged.
    Type: Grant
    Filed: April 9, 1981
    Date of Patent: May 10, 1983
    Assignees: Schreiber Foods, Inc., Butland Industries, Ltd.
    Inventor: Frederick J. Sadler
  • Patent number: 4334465
    Abstract: A method and apparatus for processing and packaging cheese in which cheese curd which has been milled and salted is fed into four columns mounted on an upright tubular trunk fitted at the lower end with a guillotine blade movable between a closed position in which it closes the bottom of the trunk and an open position in which the blade is wholly clear of the trunk. The columns are maintained at a sub-atmospheric pressure so that air in the curd is flashed off immediately the curd enters the columns. The curd in the columns flows into the trunk and merges with the curd from the other columns to form a pillar of curd supported on the guillotine blade. The walls of the columns are perforated for drainage of whey pressed out from the curd by the weight of superimposed curd. An elevator below the trunk lowers the pillar of curd when the guillotine blade is withdrawn, the blade being subsequently returned to cut off a block of cheese from the lower end of the pillar.
    Type: Grant
    Filed: July 8, 1980
    Date of Patent: June 15, 1982
    Assignee: Alfa-Laval Cheddar Systems Limited
    Inventors: Ian P. Brockwell, Karl J. G. Martensson
  • Patent number: 4237781
    Abstract: Crumbled cheese curd is fed into the top of a hollow perforated column in a chamber maintained at a sub-atmospheric pressure so as to form in the column a pillar of curd devoid of air pockets, the curd in the lower portion of the pillar being compressed by the weight of superimposed curd to press out whey therefrom and consolidate the curd, the whey passing through the perforations in the wall of the column, and the pillar of curd is repeatedly lowered, the bottom end of the pillar severed to form a block of cheese, and fresh curd added to the top of the pillar. During the lowering of the pillar of curd, the gaseous pressure in the space between the column and the wall of the chamber is increased so as to effect a transverse compression of the pillar of curd and thereby reduce the frictional sliding resistance between the pillar of curd and the column.
    Type: Grant
    Filed: April 10, 1979
    Date of Patent: December 9, 1980
    Assignee: Alfa Laval AB
    Inventor: George K. Charles
  • Patent number: 4157680
    Abstract: A perforated drainage plate for use as a lining in a cheese mould has parallel strips punched out of the plane of the plate to one side thereof to form two narrow slots on each side of each strip with the ends of the strips merging smoothly into the undeformed part of the plate. The plate is arranged with the strips abutting against the wall of the mould so that a narrow passageway is formed between the undeformed portion of the plate and the wall of the mould for draining away when forced through the slots. The strips are aligned in the direction in which a cheese block slides out of the mould after removal therefrom. The angle of inclination of the ends of the strips relative to the adjacent portion of the plate does not exceed 30 degrees, the width of the slots does not exceed 0.6 mm, and the radius of curvature of the recessed surfaces of each strip is not less than 1 mm.
    Type: Grant
    Filed: April 2, 1976
    Date of Patent: June 12, 1979
    Assignee: Wincanton Engineering Limited
    Inventor: George K. Charles
  • Patent number: 4137836
    Abstract: In the formation of cheese in which the separation of the curd and the serum and the molding of the curd are carried out under the action of gravity in a perforated upright tube, the gravitational action is combined with evacuation of the space surrounding the perforated tube to aspirate the serum and increase the relative density of the curd with respect to the serum, thereby speeding up the separation and improving the molding process.
    Type: Grant
    Filed: November 17, 1976
    Date of Patent: February 6, 1979
    Assignee: Etablissements Chalon-Megard (Societe Anonyme)
    Inventor: Pierre Megard
  • Patent number: 4112131
    Abstract: A continuous, in-line, method and apparatus for cooking process cheese products. Raw material, comprises a uniform blend of cheese with appropriate additives, for introducing into a pressurized cooking zone. Steam is injected directly into the raw material in a confined region to heat and melt the raw material into a molten mass. The molten cheese mass is delivered from the cooking zone to a mixing zone where the steam is mixed with the cheese and the temperature of the molten cheese mass is equilibrated. The molten cheese is delivered from the mixing zone to a low pressure cooling zone where deaeration and cooling of the molten mass is effected via a sharp reduction in pressure.
    Type: Grant
    Filed: February 9, 1977
    Date of Patent: September 5, 1978
    Assignee: Kraft, Inc.
    Inventors: George Bosy, Edwin N. Edwards, Willis M. Hoffbeck, Paul A. Silvio, Leonard A. Warwick