Karl-Heinz Zettier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A method of operating a separator to disinfect raw milk or whey by operating the separator within a range of an optimal clarifying effect by recirculating a portion of a disinfected milk phase with an entraining liquid.
May 14, 2005
Date of Patent:
July 20, 2010
West falia Separator AG
Karl-Heinz Zettier, Arnold Uphus, Markus Hüllmann
Abstract: A separator for disinfecting raw milk or whey. The separator includes a rotatable drum having a vertical axis of rotation. The separator further includes a disk stack, at least two outlets and an inlet. A method is disclosed for operating the separator.
May 14, 2005
January 24, 2008
Karl-Heinz Zettier, Arnold Uphus, Markus Hullmann
Abstract: The present disclosure includes a method of controlling a centrifuge for the centrifugal production of a milk product. The steps include taking a milk sample at an outlet of the centrifuge from a liquid phase, adding a substance to the milk sample that increases light transmittance of the milk sample, determining the light transmittance of the milk sample by transilluminating the milk sample using a light source and measuring light intensity via a photo cell, determining the fat content from a measurement of the light transmittance, and controlling the centrifuge as a function of the determination of the fat content. The present disclosure also includes a system for controlling the centrifuge.
Abstract: The invention relates to a method for monitoring, control and/or regulation of a centrifuge (13), for the centrifugal production of a milk product, whereby a device for carrying out the above takes a milk sample of a fluid phase exiting the centrifuge at an outlet from the centrifuge (13), a material for increasing the light transmission is added to the sample, the light transmittance of the milk sample is recorded, then the fat content determined and then said device monitors, controls and/or regulates the settings of the centrifuge (13), depending on the fat content determination.
Abstract: The invention relates to a centrifuge comprising the following: a centrifugal drum, and at least one, preferably two, stripping disc(s) for conducting liquid out of the centrifugal drum. The at least one stripping disc comprises at least one conducting channel which opens into a conducting chamber, whereby at least one restriction point is preferably provided between the conducting channel and the conducting chamber allocated thereto. A rotatable flow restrictor is assigned to said restriction point and, according to the respective position of rotation thereof, opens a more or less large cross-section of the at least one restriction point.
Abstract: A disk centrifuge having an intake device which includes two mutually separated intakes which are concentric with respect to the axis of rotation of the centrifugal drum and lead from opposite ends into a common distributor in the centrifugal drum. In a process for operating the centrifuge, the intake pressure at the upper intake tube is adjusted to be lower than the discharge pressure at the liquid discharge without a separating disk.
Abstract: The aim of the invention is to provide a method for the skimming of whey, resulting in better whey cream fat quality and allowing for automatic regulation of the concentration of whey cream. Raw whey is fed into a skimming separator and broken down into a skimmed whey phase and a whey cream phase. Whey cream is discharged through a discharge line and a part thereof corresponding to 0.5-2% of the volumetric flow of the raw whey that is fed into the skimming separator is returned to the feed line of the skimming separator by means of a recirculating device. A density transmitter can be arranged in the recirculating device so that density measurements can be carried out. The density values are transmitted to an evaluation device, enabling regulation of a control valve which is placed in the whey cream discharge line.
Abstract: A disk centrifuge having an intake device which includes two mutually separated intakes which are concentrically with respect to the axis of rotation of the centrifugal drum and lead from opposite ends into a common distributor in the centrifugal drum. In a process for operating the centrifuge, the intake pressure at the upper intake tube is adjusted to be lower than the discharge pressure at the liquid discharge without a separating disk.
Abstract: A process and system for controlling fat content in standardized milk and standardized cream. Whole milk is separated in a centrifuge into high-fat cream and low-fat milk. The high-fat cream leaving the centrifuge and the non-fat milk leaving the centrifuge are controlled to maintain the compositions of each constant. A portion of the high-fat cream is added to a portion of the non-fat milk to produce standardized milk and a portion of the non-fat milk is added to a portion of the high-fat cream to produce standardized cream. The fat content of the standardized cream is regulated by controlling the amount of the non-fat milk added to the high-fat cream.
Abstract: A method of harvesting natural milk proteins by treating a fraction of the milk with a precipitant. The treatment separates the mixture into concentrated natural casein and a fraction that contains the precipitant. The object is to use less polysaccharide. An anionic polysaccharide solution is used as a precipitant. The mixture is separated in a centrifuge into a polysaccharide fraction and a milk fraction. The polysaccharide fraction is exploited to separate the milk fraction into concentrated casein and another polysaccharide fraction.
Abstract: A centrifuge with a self-evacuating drum, with a line for feeding the drum with the stock to be centrifuged, with at least one outlet line with an elastic section for extracting a liquid phase from the drum under pressure, and with a mechanism for expelling solids from the drum at prescribed intervals. The elastic section is accommodated in an air-tight housing. The housing communicates with a compressor through a line. The line accommodates a valve that opens prior to every solids expulsion and subjects the elastic section to pressure from outside, compressing it in response to the reduction in pressure accompanying the solids expulsion and forcing as much product from the elastic section as solids are expelled from the drum.
Abstract: A method of and equipment for controlling the content of fat in milk. Whole milk is separated into skim milk. Some of the cream is returned to the skim milk to create a standardized milk. The standardized milk is employed to derive a parameter that dictates how much cream is to be added. The fat contents detected in the standardized milk are exploited to vary the amount of added cream. The density of the skim milk is measured at intervals and the results are stored. The density of the standardized milk is measured and more or less cream is added until a prescribed difference between the skim milk and the standardized milk, corresponding to the desired fat content in the standardized milk, is obtained. The density of the skim milk and that of the standardized milk are measured in the same sensor. The result of each measurement of the density of the skim milk is compared with the stored result.
November 17, 1992
Date of Patent:
November 9, 1993
Westfalia Separator AG
Karl-Heinz Zettier, Werner Hanschmann, Wolfgang Wieking
Abstract: A method of centrifuging cheese milk that involves skimming it in a self-emptying centrifuge, returning some of the separated cream to the skim milk to adjust it to the desired level of fat, and centrifuging it again to precipitate microorganisms and dirt particles. The method uses only one centrifuge. The raw milk is preliminarily simmed down to a desired fat content in one section of a separation space, the accordingly standardized milk is forwarded to the periphery of another section of the separation space, where it is purified of microorganisms and dirt while flowing radially inward through the section, and the standardized and purified milk is extracted from the processing space inside the centrifuge by w ay of a peeler.
Abstract: A centrifuge drum for separating mixtures of liquids, especially for separating refrigerated milk into cream and skim milk, with an intake pipe secured to a stationary housing to supply refrigerated milk to a separation space in the centrifuge drum and a pealing disk for diverting the separated skim milk. The pealing disk is positioned in a pealing chamber that communicates through channels with the periphery of the separation space. A diversion chamber is disposed between the separation space and the pealing chamber that communicates with the center of the separation space and has a diversion channel for diverting the cream into a stationary interception chamber. The pealing chamber is positioned axially between the diversion chamber and the interception chamber and the diversion channel is positioned concentric with the axis of rotation of the drum, whereby the diversion channel extends radially outward from the diversion chamber, through the center of the pealing disk, and into the interception chamber.
Abstract: The device has one valve body that can be set at a constant minimum cross-section and another valve body that is not activated until the pressure in a supply connection becomes too high. The valve bodies are accommodated in separate and parallel-streamed valve housings. Since the design allows free selection of the cross-section in the valve housings, extremely wide fluctuations in the concentration of cream can be mastered in accordance with controls technology by means of the second valve body.
Abstract: A drum for clarifying and separating centrifugates. It has at least one skimmer for diverting the clarified or separated centrifugates, a stationary inlet pipe extending into an inlet chamber, which rotates along with the drum, through an aperture that is slightly wider than the inlet pipe, outlets extending from the inlet chamber into a vestibule that communicates with channels ascending through a set of nested plates within the drum, and, upstream of the inlet chamber, an annular space that communicates with the inlet chamber through an annular channel.
Abstract: Centrifugal separator drum (FIG. 1) for the clarification and separation of liquids, having one or more paring systems 12, 13 for the removal of the clarified or separated liquids, a stationary inlet tube 11 which communicates with a smooth, cylindrical inlet chamber 18, which rotates with the drum and is affixed to the latter, via an opening that is slightly larger than the inlet tube. Outlets ports 20 lead out of the inlet chamber into a forechamber 21 which communicates on the one hand with an annular chamber 24 situated ahead of the inlet chamber and on the other hand with the riser passages 23 of the plate insert 4.
May 7, 1985
Date of Patent:
September 30, 1986
Westfalia Separator AG
Karl-Heinz Zettier, Paul Bruning, Reinhard Schmidt, Heinrich Hemfort
Abstract: A centrifuge has ejection openings in the jacket of the drum to which channels extending from the solids space lead. The flow through the channels can be blocked off by an annular valve body. A closure compartment is associated with the valve body. Closure fluid is supplied to the closure compartment through a line from a catch gutter. The line consists of two connected components. The components can be separated by a piston with a flowthrough channel. When the piston is in the separating position, in which it blocks off an opening in the first line component, the flowthrough channel connects the second line component with an off-flow channel that is open to the atmosphere. In this position the second line component and the closure compartment are depressurized so that the valve body can move into an opening position. This opening motion is reinforced with opening water conveyed through three channels to an opening chamber.
Abstract: A device that regulates an outlet valve on a self-discharging centrifugal drum which diverts the closure fluid from a closure compartment that moves the piston valve from a closure position while the solids space is being partly or completely emptied, has, in addition to a supply line that supplies closure fluid to the closure compartment, an operating-fluid line in which a compressed air-controlled operating-fluid meter is positioned downstream of one shut-off and upstream of another shut-off. The meter consists of a housing divided by a tightly stretched and flexible diaphragm into two compartments, one that can be altered in capacity and that accepts operating fluid and a second that can be pressurized. This system ensures that a precise volume of operating fluid will be supplied to the outlet valve and determines the amount of solids to be removed.
Abstract: A centrifuge consisting of a bottom, a cover, and a closure ring that unites them. The liquid being centrifuged is conveyed through an inlet pipe to an inlet chamber. Bores extend from the inlet chamber down to a surface that demarcates the bottom of the drum. Each bore is provided with an insert in the form of a choking device that has an outlet channel. Each outlet channel empties into a vestibule. The vestibules communicate with rising channels in a disk stack. The distributor and the bottom of the drum can be in one piece.