US20130125576A1 - Freezer apparatus - Google Patents
Freezer apparatus Download PDFInfo
- Publication number
- US20130125576A1 US20130125576A1 US13/298,321 US201113298321A US2013125576A1 US 20130125576 A1 US20130125576 A1 US 20130125576A1 US 201113298321 A US201113298321 A US 201113298321A US 2013125576 A1 US2013125576 A1 US 2013125576A1
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- US
- United States
- Prior art keywords
- freezer
- conveyor
- product
- space
- hole
- Prior art date
- 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.)
- Abandoned
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
- F25D3/11—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyors carrying articles to be cooled through the cooling space
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/361—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/37—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
- A23L3/375—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid nitrogen, at cryogenic temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2500/00—Problems to be solved
- F25D2500/02—Geometry problems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
- F25D3/127—Stationary devices with conveyors carrying articles to be cooled through the cooling space
Definitions
- the present embodiments relate to apparatus for freezing products, such as food products, with cryogenic substances.
- the freezing process would be of shorter duration, thereby reducing the cost to operate the system while at the same time improving product quality because the product would be frozen more quickly.
- FIG. 1 shows a cross-sectional side view of an IQF impingement freezer convective embodiment.
- FIG. 2 shows an exploded view of a portion of a cross-section of the embodiment shown in FIG. 1 .
- a freezer apparatus embodiment is shown generally at 10 and includes a housing 12 or shell in which a space 14 or chamber is provided therein.
- the housing 12 includes an inlet 16 at one end and an outlet 18 at another end, the inlet and the outlet providing access to the space 14 .
- a conveyor belt 20 is operatively associated with the housing 12 , in that the conveyor belt moves from the inlet 16 through the space 14 to the outlet 18 to transport a product or products 22 through the space 14 for freezing.
- the product 22 may be a food product.
- the conveyor belt 20 is used for individual quick frozen (IQF) product processing, i.e. the conveyor belt 20 is an IQF belt which is constructed for agitation, vibration and/or undulation as indicated by arrow 21 along that portion of the belt 20 that transports the product 22 through the space 14 .
- the conveyor belt 20 can be selected to vibrate in a rapid manner so that the product 22 does not adhere to the belt or other of the product on the belt during the freezing process. This sort of vibrating or agitating effect of the belt exposes all surface area of the products 22 to the freezing process that occurs in the space 14 .
- Conveyor belts that vibrate, agitate or undulate are known for freezers and examples of such are disclosed in U.S. Pat. Nos. 7,296,431, 7,827,818 and 7,810,347.
- At least one fan 24 driven by a fan motor 26 is disposed such that the fan is in the space 14 for moving or propelling atmosphere in the space toward the conveyor belt 20 .
- the conveyor belt 20 used for this embodiment would more than likely be an open mesh type of conveyor belt.
- an upper impingement plate 28 which is disposed between an upper surface of the conveyor belt 20 and the at least one fan 24 .
- the upper impingement plate 28 includes at least one and for most applications a plurality of impingement holes 30 through which the cryogen atmosphere is propelled to impact the product 22 moving along the conveyor belt 20 .
- Each of the holes 30 may have a diameter of 6 mm to 50 mm, and are in registration with the conveyor belt 20 .
- the lower impingement plate 32 includes at least one and for most applications a plurality of holes 34 through which the cryogen atmosphere circulated within the space 14 can pass through the holes 34 and the conveyor belt 20 for impacting the product 22 .
- Each of the holes 34 may have a diameter of 6 mm to 50 mm, and are in registration with the conveyor belt 20 .
- both of the impingement plates 28 , 32 can be used in the space 14 so that maximum heat transfer for the products 22 can be provided by the impinging atmosphere shown by arrows 36 , 38 being moved through the holes 30 , 34 , respectively, to contact the products 22 .
- Impingement plates are known for freezers and an example of such is disclosed in U.S. Pat. No. 6,263,680.
- the open mesh form of conveyor belt 20 provides for the movement of the impingement jets 36 , 38 to pass through the conveyor belt.
- the impingement plates 28 , 32 can be supported in the space 14 as shown in FIG. 1 by being mechanically fastened to an interior surface 15 of the housing 12 .
- a vibrating apparatus 40 is arranged to selectively contact the conveyor belt 20 and impart a force to the belt to vibrate the belt as shown by the arrow 21 so that the products 22 are displaced on the belt.
- the vibrating apparatus 40 can include a cam, as shown, or other member to impart the force to the conveyor belt 20 to cause same to reciprocate. Such displacement prevents the products 22 from adhering to each other and the belt 20 during the freezing process in the space 14 .
- IQF agitation of the conveyor belt 20 can be used in combination with the cryogen impingement jet 36 being introduced through the upper impingement plate 28 to contact the product 22 .
- Another embodiment calls for the IQF agitation of the belt 20 to be used in combination with the upper and lower impingement plates 28 , 32 .
- the lower impingement plate 32 can be used with the impingement jet 38 contacting the product 22 .
- Carbon dioxide (CO 2 ) or nitrogen (N 2 ) can be used as the cryogen for the jets 36 , 38 of the present embodiments.
- liquid nitrogen is used as the cryogen
- the impingement jets 36 , 38 will take the form of cryogen sprays, while using CO 2 as the cryogen will provide for a solid phase CO 2 in the impingement jets for contacting the products 22 .
- Use of the liquid nitrogen can bring a temperature of the space 14 down to minus 250° F. ( ⁇ 156° C.), while use of CO 2 in the space can bring the temperature of the space down to minus 90° F. ( ⁇ 68° C.).
- the IQF agitation exposes 100% of the surface area of the products 22 .
- the products 22 can be food products, such as for example shrimp, fish pieces, cutlets, fruits, vegetables, etc.
- the embodiments of the present invention will more than double the effective heat transfer coefficient that may be obtained in certain types of known mechanical or cryogen freezers.
- known impingement freezers provide a heat transfer coefficient of approximately 18 Btu/hr*ft2*F
- known agitation or vibration freezers provide a heat transfer coefficient of approximately 12-12 1 ⁇ 2 Btu/hr*ft2*F
- the freezer apparatus of the present embodiments provides a heat transfer coefficient of 25 Btu/hr*ft2*F, the particulars of which are shown in the following Example.
- freezer embodiments discussed above increase, and in certain instances as much as double, the overall heat transfer coefficient of a conventional cryogen freezer. Accordingly, because of the increased heat transfer rate of the present freezer embodiments, such embodiments can be constructed of a shorter length and smaller footprint than known cryogen freezers, yet still provide the same production rate and efficiency for the products being frozen. This provides a cost savings for the equipment without sacrificing the fast rate of time that the products are frozen which also results in a higher quality frozen product.
Abstract
A freezer for a product includes a housing having a space therein, and an inlet and an outlet in communication with the space; a conveyor having a first side for conveying the product through the space, and a second side opposite to the first side; an agitating apparatus disposed proximate the conveyor for contacting the conveyor at select intervals to agitate the conveyor and displace the product at the first side; a first longitudinal member disposed proximate the first side of the conveyor and having at least one hole extending therethrough; and at least one circulation device disposed in the space proximate the longitudinal member for directing a cryogenic substance through the at least one hole onto the product.
Description
- The present embodiments relate to apparatus for freezing products, such as food products, with cryogenic substances.
- In known individual quick frozen (IQF) freezer apparatus and processes, heat transfer in the process is limited because a driving force for convective heat transfer is employed with the use of conventional axial flow fan blades. In certain cryogen freezers, a product surface area is constantly exposed to air flow from fans which serve to accelerate the freezing rate during the process. The rate at which the product is frozen is dependent upon the heat transfer coefficient of the fans used in the freezing process. To date, only axial flow fans have been used for the heat transfer.
- If a more aggressive heat transfer could be applied with impingement jets, the freezing process would be of shorter duration, thereby reducing the cost to operate the system while at the same time improving product quality because the product would be frozen more quickly.
- For a more complete understanding of the present embodiments, reference may be had to the following drawing figures taken in conjunction with the description of the embodiments, of which:
-
FIG. 1 shows a cross-sectional side view of an IQF impingement freezer convective embodiment. -
FIG. 2 shows an exploded view of a portion of a cross-section of the embodiment shown inFIG. 1 . - Referring to
FIGS. 1 and 2 , a freezer apparatus embodiment is shown generally at 10 and includes ahousing 12 or shell in which aspace 14 or chamber is provided therein. Thehousing 12 includes aninlet 16 at one end and anoutlet 18 at another end, the inlet and the outlet providing access to thespace 14. Aconveyor belt 20 is operatively associated with thehousing 12, in that the conveyor belt moves from theinlet 16 through thespace 14 to theoutlet 18 to transport a product orproducts 22 through thespace 14 for freezing. Theproduct 22 may be a food product. - The
conveyor belt 20 is used for individual quick frozen (IQF) product processing, i.e. theconveyor belt 20 is an IQF belt which is constructed for agitation, vibration and/or undulation as indicated byarrow 21 along that portion of thebelt 20 that transports theproduct 22 through thespace 14. Theconveyor belt 20 can be selected to vibrate in a rapid manner so that theproduct 22 does not adhere to the belt or other of the product on the belt during the freezing process. This sort of vibrating or agitating effect of the belt exposes all surface area of theproducts 22 to the freezing process that occurs in thespace 14. Conveyor belts that vibrate, agitate or undulate are known for freezers and examples of such are disclosed in U.S. Pat. Nos. 7,296,431, 7,827,818 and 7,810,347. - At least one
fan 24 driven by afan motor 26 is disposed such that the fan is in thespace 14 for moving or propelling atmosphere in the space toward theconveyor belt 20. Theconveyor belt 20 used for this embodiment would more than likely be an open mesh type of conveyor belt. - Also disposed in the
space 14 is anupper impingement plate 28 which is disposed between an upper surface of theconveyor belt 20 and the at least onefan 24. Theupper impingement plate 28 includes at least one and for most applications a plurality ofimpingement holes 30 through which the cryogen atmosphere is propelled to impact theproduct 22 moving along theconveyor belt 20. Each of theholes 30 may have a diameter of 6 mm to 50 mm, and are in registration with theconveyor belt 20. - It is also possible to have a
lower impingement 32 disposed beneath a lower surface of theconveyor belt 20 and of a construction similar to that of theupper impingement plate 28. Thelower impingement plate 32 includes at least one and for most applications a plurality ofholes 34 through which the cryogen atmosphere circulated within thespace 14 can pass through theholes 34 and theconveyor belt 20 for impacting theproduct 22. Each of theholes 34 may have a diameter of 6 mm to 50 mm, and are in registration with theconveyor belt 20. Therefore, both of theimpingement plates space 14 so that maximum heat transfer for theproducts 22 can be provided by the impinging atmosphere shown byarrows holes products 22. Impingement plates are known for freezers and an example of such is disclosed in U.S. Pat. No. 6,263,680. The open mesh form ofconveyor belt 20 provides for the movement of theimpingement jets impingement plates space 14 as shown inFIG. 1 by being mechanically fastened to aninterior surface 15 of thehousing 12. - A vibrating
apparatus 40 is arranged to selectively contact theconveyor belt 20 and impart a force to the belt to vibrate the belt as shown by thearrow 21 so that theproducts 22 are displaced on the belt. The vibratingapparatus 40 can include a cam, as shown, or other member to impart the force to theconveyor belt 20 to cause same to reciprocate. Such displacement prevents theproducts 22 from adhering to each other and thebelt 20 during the freezing process in thespace 14. - For example, IQF agitation of the
conveyor belt 20 can be used in combination with thecryogen impingement jet 36 being introduced through theupper impingement plate 28 to contact theproduct 22. Another embodiment calls for the IQF agitation of thebelt 20 to be used in combination with the upper andlower impingement plates lower impingement plate 32 can be used with theimpingement jet 38 contacting theproduct 22. - Carbon dioxide (CO2) or nitrogen (N2) can be used as the cryogen for the
jets impingement jets products 22. Use of the liquid nitrogen can bring a temperature of thespace 14 down to minus 250° F. (−156° C.), while use of CO2 in the space can bring the temperature of the space down to minus 90° F. (−68° C.). The IQF agitation exposes 100% of the surface area of theproducts 22. Theproducts 22 can be food products, such as for example shrimp, fish pieces, cutlets, fruits, vegetables, etc. - Lab testing has shown that the embodiments of the present invention will more than double the effective heat transfer coefficient that may be obtained in certain types of known mechanical or cryogen freezers. For example, known impingement freezers provide a heat transfer coefficient of approximately 18 Btu/hr*ft2*F, while known agitation or vibration freezers provide a heat transfer coefficient of approximately 12-12 ½ Btu/hr*ft2*F. In contrast, the freezer apparatus of the present embodiments provides a heat transfer coefficient of 25 Btu/hr*ft2*F, the particulars of which are shown in the following Example.
- Testing of the
apparatus embodiment 10 having theimpingement plates agitation conveyor belt 20 are as follows. -
INPUTS: Equipment: Freezer Apparatus (10) Product: Fish, Shrimp Product dimension along length: 1.97 in. Product dimension along width: 0.59 in. Product thickness: 0.59 in. Space between rows: 0.1 in. Space between product pieces: 0.1 in. Number of items in row: 52 Product surface area: 5.34 in.2 Piece weight: 0.021 lb. Product inlet temp: 50° F. Product outlet temp: −15° F. Freezer Details Zone 1 (inlet) SP Temperature: −70° F. Active Length of Freezer: 10 ft. Freezer Belt Width: 38 in. RESULTS: Heat Removal Results Predicted Heat Removal: 149.5 Btu/lb Actual Heat Removal: 148.8 Btu/lb Freezer Operational Inlet Data Outlet Temperature −70 −65 −60 −55° F. Gradient: Heat Transfer 25.0 25.0 25.0 25.0 Btu/hr*ft2*F. Coefficients: Product 30.8 28.3 15.4 −13.8° F. Temperatures: Retention Time: 2.37 min. Belt Loading: 2.1 lb/ft2 Heat Transfer Coefficient: 25 Btu/hr*ft2*F. - The freezer embodiments discussed above increase, and in certain instances as much as double, the overall heat transfer coefficient of a conventional cryogen freezer. Accordingly, because of the increased heat transfer rate of the present freezer embodiments, such embodiments can be constructed of a shorter length and smaller footprint than known cryogen freezers, yet still provide the same production rate and efficiency for the products being frozen. This provides a cost savings for the equipment without sacrificing the fast rate of time that the products are frozen which also results in a higher quality frozen product.
- It will be understood that the embodiments described herein are merely exemplary, and that one skilled in the art may make variations and modifications without departing from the spirit and scope of the invention. All such variations and modifications are intended to be included within the scope of the invention as described and claimed herein. Further, all embodiments disclosed are not necessarily in the alternative, as various embodiments of the invention may be combined to provide the desired result.
Claims (15)
1. A freezer for a product, comprising:
a housing having a space therein, and an inlet and an outlet in communication with the space;
a conveyor having a first side for conveying the product through the space, and a second side opposite to the first side;
an agitating apparatus disposed proximate the conveyor for contacting the conveyor at select intervals to agitate the conveyor and displace the product at the first side;
a first longitudinal member disposed proximate the first side of the conveyor and having at least one hole extending therethrough; and
at least one circulation device disposed in the space proximate the longitudinal member for directing a cryogenic substance through the at least one hole onto the product.
2. The freezer of claim 1 , wherein the at least one hole is in registration with the conveyor.
3. The freezer of claim 1 , wherein the first longitudinal member comprises a first plate having a plurality of the holes therethrough.
4. The freezer of claim 1 , wherein the at least one hole has a diameter of 6 mm to 50 mm.
5. The freezer of claim 1 , wherein the cryogenic substance is selected from the group consisting of carbon dioxide (CO2) and nitrogen (N2).
6. The freezer of claim 1 , wherein the conveyor comprises a mesh surface area through which the cryogenic substance can pass.
7. The freezer of claim 1 , further comprising a second longitudinal member disposed proximate the second side of the conveyor and having at least another one hole extending therethrough.
8. The freezer of claim 7 , wherein the at least another one hole is in registration with the conveyor.
9. The freezer of claim 7 , wherein the second longitudinal member comprises a second plate having a plurality of the holes therethrough.
10. The freezer of claim 7 , wherein the at least another one hole has a diameter of 6 mm to 50 mm.
11. The freezer of claim 7 , wherein the cryogenic substance is selected from the group consisting of carbon dioxide (CO2) and nitrogen (N2).
12. The freezer of claim 7 , wherein the conveyor comprises a mesh surface area through which the cryogenic substance can pass.
13. The freezer of claim 1 , wherein the agitating apparatus is disposed proximate the second side of the conveyor.
14. The freezer of claim 13 , wherein the agitating apparatus comprises a cam.
15. The freezer of claim 1 , wherein the product comprises a food product.
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/298,321 US20130125576A1 (en) | 2011-11-17 | 2011-11-17 | Freezer apparatus |
EP11196279.1A EP2594870B1 (en) | 2011-11-17 | 2011-12-30 | Freezer apparatus |
PL11196279T PL2594870T3 (en) | 2011-11-17 | 2011-12-30 | Freezer apparatus |
ES11196279T ES2733543T3 (en) | 2011-11-17 | 2011-12-30 | Freezer |
PCT/US2012/058634 WO2013074216A2 (en) | 2011-11-17 | 2012-10-04 | Freezer apparatus |
TW101139545A TWI589822B (en) | 2011-11-17 | 2012-10-25 | Freezer apparatus |
TR2019/09318T TR201909318T4 (en) | 2011-11-17 | 2012-12-30 | Freezer apparatus. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/298,321 US20130125576A1 (en) | 2011-11-17 | 2011-11-17 | Freezer apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130125576A1 true US20130125576A1 (en) | 2013-05-23 |
Family
ID=45400993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/298,321 Abandoned US20130125576A1 (en) | 2011-11-17 | 2011-11-17 | Freezer apparatus |
Country Status (7)
Country | Link |
---|---|
US (1) | US20130125576A1 (en) |
EP (1) | EP2594870B1 (en) |
ES (1) | ES2733543T3 (en) |
PL (1) | PL2594870T3 (en) |
TR (1) | TR201909318T4 (en) |
TW (1) | TWI589822B (en) |
WO (1) | WO2013074216A2 (en) |
Cited By (7)
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US20170127706A1 (en) * | 2014-06-13 | 2017-05-11 | John Bean Technologies Ab | Temperature treatment apparatus and method for solidifying portions of fluid |
US20180058744A1 (en) * | 2016-09-01 | 2018-03-01 | Michael D. Newman | Method and apparatus for impingement freezing of irregularly shaped products |
US20180103661A1 (en) * | 2016-10-17 | 2018-04-19 | Michael D. Newman | Apparatus and method for freezer gas control |
CN108253720A (en) * | 2017-12-26 | 2018-07-06 | 青岛海尔股份有限公司 | The control method of ice clothing preservation device, refrigerator and refrigerator |
US10813371B2 (en) | 2016-12-06 | 2020-10-27 | Linde Aktiengesellschaft | Apparatus and methods for cooling products |
CN112265782A (en) * | 2020-10-29 | 2021-01-26 | 盐城健牌科技有限公司 | A cool off conveyer fast for production of car sealing strip |
CN115669713A (en) * | 2022-10-29 | 2023-02-03 | 福清市华盛水产食品有限公司 | A quick-freeze equipment for mackerel processing |
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US20140230460A1 (en) * | 2009-12-22 | 2014-08-21 | Michael D. Newman | Heat flux freezer control apparatus and method |
CN104534778A (en) * | 2014-12-19 | 2015-04-22 | 池州冠华黄金冶炼有限公司 | Two-layer cooling device |
CN106839598B (en) * | 2017-03-07 | 2022-09-27 | 宁波华斯特林电机制造有限公司 | Mesh belt refrigerator |
DE102021002813B4 (en) | 2021-06-01 | 2023-03-23 | Messer France S.A.S. | Process and apparatus for making frozen products |
CN115183513B (en) * | 2022-07-21 | 2023-12-15 | 绍兴老鹰冷冻设备有限公司 | Ultralow-temperature tunnel type instant freezer for cold chain fresh-keeping and quick freezing |
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2011
- 2011-11-17 US US13/298,321 patent/US20130125576A1/en not_active Abandoned
- 2011-12-30 EP EP11196279.1A patent/EP2594870B1/en active Active
- 2011-12-30 ES ES11196279T patent/ES2733543T3/en active Active
- 2011-12-30 PL PL11196279T patent/PL2594870T3/en unknown
-
2012
- 2012-10-04 WO PCT/US2012/058634 patent/WO2013074216A2/en active Application Filing
- 2012-10-25 TW TW101139545A patent/TWI589822B/en not_active IP Right Cessation
- 2012-12-30 TR TR2019/09318T patent/TR201909318T4/en unknown
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US7827818B2 (en) * | 2008-12-30 | 2010-11-09 | Linde Ag | Conveyor belt having rotating drive shaft |
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Also Published As
Publication number | Publication date |
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TW201333397A (en) | 2013-08-16 |
PL2594870T3 (en) | 2019-09-30 |
EP2594870A1 (en) | 2013-05-22 |
TWI589822B (en) | 2017-07-01 |
TR201909318T4 (en) | 2019-07-22 |
WO2013074216A2 (en) | 2013-05-23 |
ES2733543T3 (en) | 2019-11-29 |
WO2013074216A3 (en) | 2014-05-22 |
EP2594870B1 (en) | 2019-05-08 |
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