US1900573A - Electric heating apparatus - Google Patents

Electric heating apparatus Download PDF

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Publication number
US1900573A
US1900573A US49674130A US1900573A US 1900573 A US1900573 A US 1900573A US 49674130 A US49674130 A US 49674130A US 1900573 A US1900573 A US 1900573A
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Prior art keywords
heating
heated
plates
high
pairs
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Elmer D Mcarthur
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General Electric Co
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General Electric Co
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
    • H05B6/00Heating by electric, magnetic, or electromagnetic fields
    • H05B6/64Heating using microwaves
    • H05B6/78Arrangements for continuous movement of material
    • H05B6/782Arrangements for continuous movement of material wherein the material moved is food
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S65/00Glass manufacturing
    • Y10S65/04Electric heat

Description

Maich 7, 1933. E. D. MCARTHUR, 1,900,573

I ELECTRIC HEATING APPARATUS Filed Nov. 19, 19:50

Fig. l.

Inventor-z Tim-war D. McAr'thur,

His Attorney.

f UNITED ,s1' r|-:s- PATENT osrlcs E1 .11 '1: n n. 'l tcan'rnun, or-scmnc-rmr, mrw You aasmnos. 'no em Insomnia I comm, A CORPORATION O! m YORK nac'rarc nna'rmc mum:-

a uuubn filcdlovelber 19, mo. Serial Re. 40am.

7 My invention relates to electric heatingapparatus, more particularly to electric heaters of the'type in which the-heat is nerated in the heated body itself. and has or its object simple, reliable and efi'ective electric heating apparatus utilizing currents of high frequenc1es.

Myinvention has particular application to heating apparatus wherein the material or efictrtlildfes electrically lconnlecteiilJ tohabsoalrce o ig requency'supp y w ere yt e o y1s heated by an electrostatic field. In the application of this t found that the portion of the body adjacent the source of high frequency supply is heated with greater rapidity than the remaining more remotely situated Iportion. In accordance with my invention rovide in one form thereof a series of pairs 0 heating electrodes 1 with separate source of high frequency supply which are arranged on opposite sides of I the pairs of plates, together*with=means for assmgthe' dy to be heated in succession etween the pairs of plates whereby it is heated uniformly. My'invention is especially useful in the heating of food products, such as milk and meat, for sterilization, cooking or other purposes. It has wide application, however, to eating processes-wherein aluniform rate of heating is desirable. This method of heating is to be distinguished from the usual method of heating in which heat is ap lied to the ex-' terior ofthe hody-and-must e transmitted by conduction into the interior portions. Such methodsrequire a longer heating period and furthermore, the outer portions of the a body are subjected to the maximum temperainterior portions. which is of especial disadvantage where the heating period is quite critical and must be closely controlled.

For a more complete understanding of my invention reference should be had to the accompanying drawing in which Fig. 1 is a view showing in simplified partially diagrammatic form apparatus forapplying high frequency current to the heating plates in accordance m with my invention, while Fig. 2 is a diagrambody to be heated is placed between spacede of heater it has been ture for a greater length of time than the matic representation of heating apparatus to be heated is placed between the plates in s seed or electrically insulated relation with t em, for example in a suitable container 13 made of an electrically insulating material,

such. as glass. s

It will be understood'that the electron dis" charge device 12 operates in a manner similar to a high frequency short wave tube oscillator,

such as used in radio transmission, and produces currentof similar high frequencies, on

the order of twenty to fifty million cycles per second. In the particular system shown the plates 10 and 11 are connected respectively to the grid 14 and the anode or plate 15 of the discharge device, suitable inductances 16 I and 16a being included in the respective connections so as to form a resonant high frequency oscillation circuit. At these very high requencies the inductance in the conductors 3 themselves may be suflicient to reduce this desired resonant condition in w ich case no auxiliary inductance would be provided.

. The filamentary cathode 17 of the discharge device is heated from a-suitable source of alternating current which is connected to thecathode through a suitable transformer 18. Radio frequency coils 19 and 20 are included in the sides respectively of the cathode circuit. A tap 21 on the secondary of the transformer 18 leads through a-irrid leak resistance 22 and capacity 23 connected in parallelwith each other, and. through a choke coil 24 to the grid 14. A suitablesource of electrical supply, for example a direct current source of 500 volts or more, is connected to the to 21 and the plate 15, a radio frequency cho e coil 25 being included in the connection with the plate; The 'positive side Q It is very effective in the heating of various of the supplysource is connected to the plate and the negative side to tap 21.

It will be understood that the frequency generated in the oscillation circuit including the two plates may be varied by changing the constants of the circuit, for example by varying the distance between the two plates liquids, and materials containing moisture, such as articles of food including meats, vegetables, eggs, milk, etc, when for some reason it is undesirable to apply heat externally as from an hot oil bath or an oven.

It'mayalso be used in drying laundry.

In the use of the heating a paratus for some materials I have found t at the electrode of each pair which is nearer the source of, high frequency supply apparently has the greater heatingefiect, the portion of the material adjacent this electrode being heated more rapidly than the remaining portions.

In the arrangement shown, the material ad-.

jacent the plate 10 is heated most rapidly. One explanation of this is the distortion of theelectrostatic field due to the difference in the lengths of the conductors leading from the two lates to the source of'supply. The plate 10 in nearer the source of high freuency'suplp y constituted by the discharge evice 12 a the lead to the other plate 'mustpass the first plate and distorts the field due to its prox- 1m1y.' p

Asshown in Fig. 2,1provide in accordance with one'form of my invention a plurality of pairsof plates'26 to '29 inclusive which are mounted preferablyin e ually spaced relation and with corresponding plates in alignment, together with suitable conveying means, such as a continuous conveyor 30 passing successively between the pairs of plates. The sources of high frequency supply 31 to 34 inclusive for the respectivepairs of plates are placed on alternate opposite sides of the conveyor. It will be'understood that the sources 31 and 34 are suitable sources of high frequency current, such as shown i Fig. 1, there being a separatesource con nected to. each pair of plates." The material to be heated is passed on the conveyor in the containers-13 successively between the 'opgosite sides to the higher rate of heating s the shorter lead and cons'e- 'quently gives the greater heating efi'ect since pairs of plates and consequently the material in each container is subjected alternately on as a result the material is heated uniformly throughout. It will be understood that the number of airs of heating plates may be varied as desired to give the desired temperature and rate of heatingl While I have shown a particular embodi ment' of my-invention, it will be understood, of course, that I do not wish to be limited thereto since many modifications may be made, and I, therefore, contemplate by, the appended claims to cover any such modifications as fall within the true spirit and scope of my invention.

What I claim as new and desire to protect by Letters Patent of the United States is:

1. Electric heating apparatus comprising a plurality of pairs of electrodes, aseparate source of high frequency supply for each of said pairs of electrodes, one of the electrodes of each pair giving a greater heating e'liect than the other and means forpassmg the material to be heated between said pairs of electrodes in succession in such manner that different ortions of said materialare adjacent the e ectrode givingthe greater heating efiect whereby said material is heated uniformly.' Y

2. Electric heatingap aratus comprisinga plurality of airs ofe ectrodes, a se arate source of big frequency current su p y for each of said pairs of electrodes, the'e ectrodesof each pair' being respectively closely and remotely situated with respect toth'eir supply source, and means for passing the material to be heated between the electrodes of a said pairs in succession in such manner that a given portion of the'materlal is alternately adjacent said closely and remotely situated electrodes. v

3. Electric heating up aratus comprisin a plurality of pairs of'e ectrodes, means or electrodes of said pairs in succession, a source of high frequenc current for each of said pairs of electro es', said sources being .arranged on opposite sides of the path of travel of said material in such a manner that each of said sources is res ectively closely and remotely situated wit res set to its electrodes whereby a predetermine portion of saidmaterial passes adjacent the electrodes giving difierent rates of heating.

In witness whereof I ave hereunto set my hand this 18th day of November,1930. v ELMER D. MQARTHUR.

passing the material to be heated between the r

US1900573A 1930-11-19 1930-11-19 Electric heating apparatus Expired - Lifetime US1900573A (en)

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Cited By (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2417953A (en) * 1944-06-02 1947-03-25 Stupakoff Ceramic Mfg Co High temperature electrically-heated furnace
US2421334A (en) * 1944-04-26 1947-05-27 Ind Rayon Corp Method of treating twisted filamentary materials
US2433067A (en) * 1942-06-26 1947-12-23 George F Russell Method of and apparatus for highfrequency dielectric heating
US2436732A (en) * 1944-05-12 1948-02-24 Carborundum Co High-frequency electric field heating
US2469709A (en) * 1946-08-22 1949-05-10 Ashworth Handel Apparatus for melting chocolate and other confections
US2471744A (en) * 1944-05-29 1949-05-31 Rca Corp Method of and means for measuring microwave power
US2472193A (en) * 1943-10-19 1949-06-07 Clayton Benjamin Electronic drying of foots
US2473041A (en) * 1945-08-09 1949-06-14 Swift & Co High-frequency electrostatic field apparatus for egg pasteurization
US2474420A (en) * 1945-07-16 1949-06-28 Ross M Carrell High-frequency dielectric heating apparatus
US2474649A (en) * 1944-06-21 1949-06-28 Dehydration Inc Treatment of vegetable tissue
US2483623A (en) * 1943-10-15 1949-10-04 Clayton Benjamin Apparatus for process of drying oil
US2488165A (en) * 1946-03-04 1949-11-15 A W Brickman Method of processing meat products
US2488164A (en) * 1946-03-02 1949-11-15 A W Brickman Method of processing meat products
US2491687A (en) * 1945-06-26 1949-12-20 Nutt John Henry Apparatus for baking dough products
US2494191A (en) * 1944-06-28 1950-01-10 Neumann Salomon Starch degradation process
US2495435A (en) * 1947-01-14 1950-01-24 Raytheon Mfg Co Method of treating foodstuffs
US2495429A (en) * 1945-10-08 1950-01-24 Raytheon Mfg Co Method of treating foodstuffs
US2495415A (en) * 1945-10-17 1950-01-24 Raytheon Mfg Co High-frequency electromagnetic cooking apparatus
US2497501A (en) * 1946-04-27 1950-02-14 Ross M Carrell Treatment of coffee, etc.
US2505025A (en) * 1945-06-01 1950-04-25 Girdler Corp High-frequency treating system
US2510796A (en) * 1944-09-28 1950-06-06 Rca Corp Art of pasteurizing milk, etc.
US2551360A (en) * 1946-01-31 1951-05-01 Rca Corp Art of subjecting effervescent materials to an electric field
US2569075A (en) * 1946-03-21 1951-09-25 Arthur L Schade Prevention of enzymatic discoloration of potatoes
US2576902A (en) * 1943-11-13 1951-11-27 Republic Steel Corp Method for flow brightening electrodeposited tin on tinplate
US2577220A (en) * 1945-08-27 1951-12-04 Robert N Winfree Process for raising dough temperatures
US2590580A (en) * 1946-07-26 1952-03-25 Ben J Chromy High-frequency corn popping apparatus
US2595502A (en) * 1946-08-01 1952-05-06 Allis Chalmers Mfg Co Variable capacity circuit for dielectric heating apparatus
US2601067A (en) * 1948-03-24 1952-06-17 Raytheon Mfg Co Coffee brewing
US2603741A (en) * 1946-12-12 1952-07-15 Goodrich Co B F High-frequency heating
US2603142A (en) * 1947-03-19 1952-07-15 Cyril C Miller Apparatus for popping corn by highfrequency radiation
DE845082C (en) * 1948-10-02 1952-07-28 Telefunken Gmbh Means for treatment of bulk materials with high frequency electrical energy
US2605383A (en) * 1945-10-08 1952-07-29 Raytheon Mfg Co Means for treating foodstuffs
US2612595A (en) * 1948-02-12 1952-09-30 Girdler Corp Adjustable electrode assembly for high-frequency heating systems
US2614045A (en) * 1949-04-08 1952-10-14 British Soya Products Ltd Processes for the treatment of soya beans and other leguminous seeds
US2623451A (en) * 1948-09-11 1952-12-30 Swift & Co Sausage manufacturing apparatus
US2631223A (en) * 1946-06-28 1953-03-10 United Shoe Machinery Corp Apparatus for high-frequency dielectric progressive bonding
US2642000A (en) * 1944-11-29 1953-06-16 Hoe & Co R Ink drying equipment for web printing machines
DE884454C (en) * 1944-09-28 1953-07-27 Patelhold Patentverwertung Means for treatment of organic and chemical substances, by means of short electric waves
DE761090C (en) * 1936-11-08 1954-01-11 Siemens Ag A method for high-frequency treatment, in particular for heating objects
US2678138A (en) * 1950-08-08 1954-05-11 Gen Motors Corp Feeding apparatus
US2685518A (en) * 1948-09-11 1954-08-03 Swift & Co Sausage manufacturing process
DE935079C (en) * 1945-04-19 1955-11-10 Siemens Ag Arrangement for treatment of bodies in the high-frequency electric field in accordance with the continuous process
US2737955A (en) * 1950-02-08 1956-03-13 Koerber & Co Kg Method and apparatus for drying tobacco products
US2744990A (en) * 1951-01-24 1956-05-08 Gen Electric Ultrahigh frequency heating apparatus
DE1009745B (en) * 1953-03-09 1957-06-06 Robert Zeisberg Dipl Ing Method and apparatus for treating catalysts or absorbents
DE965392C (en) * 1944-08-18 1957-06-06 Siemens Ag A method for heating pieces of dough to marked by the desired end state Oberflaechenbraeune or crust Ausback
US2816034A (en) * 1951-03-10 1957-12-10 Wilson & Co Inc High frequency processing of meat and apparatus therefor
US2829977A (en) * 1954-05-10 1958-04-08 Jamin N V C Method for the preparation of confectionary masses
US2877118A (en) * 1953-09-23 1959-03-10 Swift & Co Continuous sausage manufacture and apparatus therefor
US2985573A (en) * 1957-04-30 1961-05-23 Saint Gobain Preparation of metallic elements
US3053667A (en) * 1957-09-27 1962-09-11 Zwanenberg S Fabrieken N V Process for the preservation of non-homogeneous meat
US3291036A (en) * 1965-03-17 1966-12-13 Internat Food Machine Corp Resistance heating cooking device
US3394011A (en) * 1964-01-03 1968-07-23 Swift & Co Continuous production of cheese curd
US3482507A (en) * 1964-01-03 1969-12-09 Swift & Co Apparatus for the continuous production of cheese curd
US4003774A (en) * 1973-09-24 1977-01-18 Baumgartner Papiers S.A. Stabilization of tows of filamentary material
FR2522581A1 (en) * 1982-03-05 1983-09-09 Cincinnati Milacron Inc heater dielectric loss of preforms of thermoplastic articles
US4420670A (en) * 1982-03-05 1983-12-13 Cincinnati Milacron Industries, Inc. Control for dielectric heating in blow molding machine
US5290583A (en) * 1992-04-02 1994-03-01 David Reznik Method of electroheating liquid egg and product thereof
US5641423A (en) * 1995-03-23 1997-06-24 Stericycle, Inc. Radio frequency heating apparatus for rendering medical materials
US5863580A (en) * 1994-06-01 1999-01-26 Reznik; David Electroheating methods
US20070260347A1 (en) * 2006-04-03 2007-11-08 Swift & Company Methods and Systems for Tracking and Managing Livestock Through the Production Process
US20070258625A1 (en) * 2006-04-03 2007-11-08 Swift & Company Methods and Systems for Administering a Drug Program Related to Livestock
US7892076B2 (en) 2006-05-22 2011-02-22 Swift & Company Multibar apparatus and method for electrically stimulating a carcass
US9159126B2 (en) 2006-04-03 2015-10-13 Jbs Usa, Llc System and method for analyzing and processing food product

Cited By (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE761090C (en) * 1936-11-08 1954-01-11 Siemens Ag A method for high-frequency treatment, in particular for heating objects
US2433067A (en) * 1942-06-26 1947-12-23 George F Russell Method of and apparatus for highfrequency dielectric heating
US2483623A (en) * 1943-10-15 1949-10-04 Clayton Benjamin Apparatus for process of drying oil
US2472193A (en) * 1943-10-19 1949-06-07 Clayton Benjamin Electronic drying of foots
US2576902A (en) * 1943-11-13 1951-11-27 Republic Steel Corp Method for flow brightening electrodeposited tin on tinplate
US2421334A (en) * 1944-04-26 1947-05-27 Ind Rayon Corp Method of treating twisted filamentary materials
US2436732A (en) * 1944-05-12 1948-02-24 Carborundum Co High-frequency electric field heating
US2471744A (en) * 1944-05-29 1949-05-31 Rca Corp Method of and means for measuring microwave power
US2417953A (en) * 1944-06-02 1947-03-25 Stupakoff Ceramic Mfg Co High temperature electrically-heated furnace
US2474649A (en) * 1944-06-21 1949-06-28 Dehydration Inc Treatment of vegetable tissue
US2494191A (en) * 1944-06-28 1950-01-10 Neumann Salomon Starch degradation process
DE965392C (en) * 1944-08-18 1957-06-06 Siemens Ag A method for heating pieces of dough to marked by the desired end state Oberflaechenbraeune or crust Ausback
US2510796A (en) * 1944-09-28 1950-06-06 Rca Corp Art of pasteurizing milk, etc.
DE884454C (en) * 1944-09-28 1953-07-27 Patelhold Patentverwertung Means for treatment of organic and chemical substances, by means of short electric waves
US2642000A (en) * 1944-11-29 1953-06-16 Hoe & Co R Ink drying equipment for web printing machines
DE935079C (en) * 1945-04-19 1955-11-10 Siemens Ag Arrangement for treatment of bodies in the high-frequency electric field in accordance with the continuous process
US2505025A (en) * 1945-06-01 1950-04-25 Girdler Corp High-frequency treating system
US2491687A (en) * 1945-06-26 1949-12-20 Nutt John Henry Apparatus for baking dough products
US2474420A (en) * 1945-07-16 1949-06-28 Ross M Carrell High-frequency dielectric heating apparatus
US2473041A (en) * 1945-08-09 1949-06-14 Swift & Co High-frequency electrostatic field apparatus for egg pasteurization
US2577220A (en) * 1945-08-27 1951-12-04 Robert N Winfree Process for raising dough temperatures
US2605383A (en) * 1945-10-08 1952-07-29 Raytheon Mfg Co Means for treating foodstuffs
US2495429A (en) * 1945-10-08 1950-01-24 Raytheon Mfg Co Method of treating foodstuffs
US2495415A (en) * 1945-10-17 1950-01-24 Raytheon Mfg Co High-frequency electromagnetic cooking apparatus
US2551360A (en) * 1946-01-31 1951-05-01 Rca Corp Art of subjecting effervescent materials to an electric field
US2488164A (en) * 1946-03-02 1949-11-15 A W Brickman Method of processing meat products
US2488165A (en) * 1946-03-04 1949-11-15 A W Brickman Method of processing meat products
US2569075A (en) * 1946-03-21 1951-09-25 Arthur L Schade Prevention of enzymatic discoloration of potatoes
US2497501A (en) * 1946-04-27 1950-02-14 Ross M Carrell Treatment of coffee, etc.
US2631223A (en) * 1946-06-28 1953-03-10 United Shoe Machinery Corp Apparatus for high-frequency dielectric progressive bonding
US2590580A (en) * 1946-07-26 1952-03-25 Ben J Chromy High-frequency corn popping apparatus
US2595502A (en) * 1946-08-01 1952-05-06 Allis Chalmers Mfg Co Variable capacity circuit for dielectric heating apparatus
US2469709A (en) * 1946-08-22 1949-05-10 Ashworth Handel Apparatus for melting chocolate and other confections
US2603741A (en) * 1946-12-12 1952-07-15 Goodrich Co B F High-frequency heating
US2495435A (en) * 1947-01-14 1950-01-24 Raytheon Mfg Co Method of treating foodstuffs
US2603142A (en) * 1947-03-19 1952-07-15 Cyril C Miller Apparatus for popping corn by highfrequency radiation
US2612595A (en) * 1948-02-12 1952-09-30 Girdler Corp Adjustable electrode assembly for high-frequency heating systems
US2601067A (en) * 1948-03-24 1952-06-17 Raytheon Mfg Co Coffee brewing
US2685518A (en) * 1948-09-11 1954-08-03 Swift & Co Sausage manufacturing process
US2623451A (en) * 1948-09-11 1952-12-30 Swift & Co Sausage manufacturing apparatus
DE845082C (en) * 1948-10-02 1952-07-28 Telefunken Gmbh Means for treatment of bulk materials with high frequency electrical energy
US2614045A (en) * 1949-04-08 1952-10-14 British Soya Products Ltd Processes for the treatment of soya beans and other leguminous seeds
US2737955A (en) * 1950-02-08 1956-03-13 Koerber & Co Kg Method and apparatus for drying tobacco products
US2678138A (en) * 1950-08-08 1954-05-11 Gen Motors Corp Feeding apparatus
US2744990A (en) * 1951-01-24 1956-05-08 Gen Electric Ultrahigh frequency heating apparatus
US2816034A (en) * 1951-03-10 1957-12-10 Wilson & Co Inc High frequency processing of meat and apparatus therefor
DE1009745B (en) * 1953-03-09 1957-06-06 Robert Zeisberg Dipl Ing Method and apparatus for treating catalysts or absorbents
US2877118A (en) * 1953-09-23 1959-03-10 Swift & Co Continuous sausage manufacture and apparatus therefor
US2829977A (en) * 1954-05-10 1958-04-08 Jamin N V C Method for the preparation of confectionary masses
US2985573A (en) * 1957-04-30 1961-05-23 Saint Gobain Preparation of metallic elements
US3053667A (en) * 1957-09-27 1962-09-11 Zwanenberg S Fabrieken N V Process for the preservation of non-homogeneous meat
US3394011A (en) * 1964-01-03 1968-07-23 Swift & Co Continuous production of cheese curd
US3482507A (en) * 1964-01-03 1969-12-09 Swift & Co Apparatus for the continuous production of cheese curd
US3291036A (en) * 1965-03-17 1966-12-13 Internat Food Machine Corp Resistance heating cooking device
US4003774A (en) * 1973-09-24 1977-01-18 Baumgartner Papiers S.A. Stabilization of tows of filamentary material
FR2522581A1 (en) * 1982-03-05 1983-09-09 Cincinnati Milacron Inc heater dielectric loss of preforms of thermoplastic articles
US4420670A (en) * 1982-03-05 1983-12-13 Cincinnati Milacron Industries, Inc. Control for dielectric heating in blow molding machine
US4409455A (en) * 1982-03-05 1983-10-11 Cincinnati Milacron Inc. Dielectric heating section for blow molding machine
US5290583A (en) * 1992-04-02 1994-03-01 David Reznik Method of electroheating liquid egg and product thereof
US5415882A (en) * 1992-04-02 1995-05-16 Knipper; Aloysius J. Producing extended refrigerated shelf life food without high temperature heating
US5533441A (en) * 1992-04-02 1996-07-09 Reznik; David Apparatus for rapidly cooling liquid egg
US5863580A (en) * 1994-06-01 1999-01-26 Reznik; David Electroheating methods
US5641423A (en) * 1995-03-23 1997-06-24 Stericycle, Inc. Radio frequency heating apparatus for rendering medical materials
US20100027849A1 (en) * 2006-04-03 2010-02-04 Swift & Company Methods and Systems for Administering a Drug Program
US20070258625A1 (en) * 2006-04-03 2007-11-08 Swift & Company Methods and Systems for Administering a Drug Program Related to Livestock
US7606394B2 (en) 2006-04-03 2009-10-20 Jbs Swift & Company Methods and systems for administering a drug program related to livestock
US9881366B2 (en) 2006-04-03 2018-01-30 Jbs Usa, Llc System and method for analyzing and processing food product
US20070260347A1 (en) * 2006-04-03 2007-11-08 Swift & Company Methods and Systems for Tracking and Managing Livestock Through the Production Process
US9412160B2 (en) 2006-04-03 2016-08-09 Jbs Usa, Llc System and method for analyzing and processing food product
US8050462B2 (en) 2006-04-03 2011-11-01 Jbs Usa, Llc Methods and systems for administering a drug program
US8379935B2 (en) 2006-04-03 2013-02-19 Swift & Company Method for administering a drug program to determine whether an animal has been given a drug
US8660315B2 (en) 2006-04-03 2014-02-25 Jbs Usa, Llc Method for administering a drug program to determine whether an animal has been given a drug
US9135501B2 (en) 2006-04-03 2015-09-15 Jbs Usa, Llc Method for administering a drug program to determine whether an animal has been given a drug
US9159126B2 (en) 2006-04-03 2015-10-13 Jbs Usa, Llc System and method for analyzing and processing food product
US7613330B2 (en) 2006-04-03 2009-11-03 Jbs Swift & Company Methods and systems for tracking and managing livestock through the production process
US7892076B2 (en) 2006-05-22 2011-02-22 Swift & Company Multibar apparatus and method for electrically stimulating a carcass

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