US20160000095A1 - Dual drum spiral oven - Google Patents

Dual drum spiral oven Download PDF

Info

Publication number
US20160000095A1
US20160000095A1 US14/855,289 US201514855289A US2016000095A1 US 20160000095 A1 US20160000095 A1 US 20160000095A1 US 201514855289 A US201514855289 A US 201514855289A US 2016000095 A1 US2016000095 A1 US 2016000095A1
Authority
US
United States
Prior art keywords
plenum
chamber
drum
oven
heat exchanger
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
Application number
US14/855,289
Inventor
Michael Ros
Thomas F. Steentjes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TS TECHNIEK BV
Original Assignee
TS TECHNIEK BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US201261591717P priority Critical
Priority to US201261591955P priority
Priority to US201261593326P priority
Priority to US13/750,540 priority patent/US9161651B2/en
Application filed by TS TECHNIEK BV filed Critical TS TECHNIEK BV
Priority to US14/855,289 priority patent/US20160000095A1/en
Assigned to TS TECHNIEK BV reassignment TS TECHNIEK BV ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ROS, MICHAEL, STEENTJES, Thomas F.
Publication of US20160000095A1 publication Critical patent/US20160000095A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A21BAKING; EDIBLE DOUGHS
    • A21BBAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING
    • A21B1/00Bakers' ovens
    • A21B1/42Bakers' ovens characterised by the baking surfaces moving during the baking
    • A21B1/48Bakers' ovens characterised by the baking surfaces moving during the baking with surfaces in the form of an endless band
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/14Cooking-vessels for use in hotels, restaurants, or canteens
    • A47J27/16Cooking-vessels for use in hotels, restaurants, or canteens heated by steam
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00Baking; Roasting; Grilling; Frying
    • A47J37/04Roasting apparatus with movably-mounted food supports or with movable heating implements; Spits
    • A47J37/043Roasting apparatus with movably-mounted food supports or with movable heating implements; Spits with food supports rotating about a vertical axis
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J37/00Baking; Roasting; Grilling; Frying
    • A47J37/04Roasting apparatus with movably-mounted food supports or with movable heating implements; Spits
    • A47J37/045Roasting apparatus with movably-mounted food supports or with movable heating implements; Spits with endless conveyors

Abstract

An oven for heating food products on a conveyor includes two chambers. A conveyor belt circulates within each chamber and between the chambers. Each chamber includes a drum oriented with a vertical axis, a motor for rotating the drum about the axis, and a conveyor belt having a length helically surrounding the drum. The conveyor belt has an infeed end and outlet end. A plenum is located within the chamber along an outer extent of the chamber and is curved substantially concentrically with the drum. The plenum forms a substantially closed air pathway having an inlet at one end and an outlet at an opposite end passing air into the first chamber. A fan is arranged to circulate air within the chamber and force air into the plenum inlet, through the plenum and out of the plenum outlet. A heat exchanger is arranged in the plenum to heat the air flowing within the plenum.

Description

  • The present application is a continuation of co-pending U.S. patent application Ser. No. 13/750,540, filed Jan. 25, 2013, which claims the benefit of U.S. Provisional Patent Application No. 61/591,717, filed Jan. 27, 2012, No. 61/591,955, filed Jan. 29, 2012, and No. 61/593,326, filed Feb. 1, 2012, all of which are incorporated by reference herein in their entirety.
  • BACKGROUND OF THE INVENTION
  • Various spiral oven systems are known.
  • For example, U.S. Pat. No. 5,850,781 describes a multi-heating zone, single spiral oven. A spiral conveyor helically winds around a rotating drum. Heating is provided in zones within the oven. The zones are arranged vertically, i.e., an upper zone and a lower zone. Each zone has at least one ventilation device and heating device for circulating hot air through the zone. Each zone preferably has two ventilators, each with a heating device, which cover approximately half of each spiral conveyor winding.
  • U.S. Pat. Nos. 7,107,899 and 5,329,916 describe dual spiral ovens. In these patents two rotating drums within the oven are helically surrounded by conveyors wherein the output of one spiral conveyor communicates products onto the input of the next spiral conveyor. Heating elements in U.S. Pat. No. 7,107,899 are arranged as helical electrical coils or hollow tubes that underlie the spiral conveyor. The heating elements in U.S. Pat. No. 5,329,916 are arranged in overhead air ducts.
  • The present inventor has recognized that it would be desirable to provide a compact spiral oven that provides an optimized and efficient cooking.
  • SUMMARY OF THE INVENTION
  • The exemplary embodiment of the invention provides an oven having a rotating drum and a conveyor surrounding or wrapping the drum helically for transporting products to be cooked along a path from an inlet of the oven to an outlet, a ventilator for circulating air through the oven, and a heat exchanger for heating the air circulated by the ventilator. A housing provides a chamber that surrounds the drum and the conveyor that wraps the drum. A curved plenum is configured adjacent to the chamber wherein the plenum is curved substantially concentrically with the drum. The ventilator forces air in a tangential direction with regard to the drum through the plenum, through a heat exchanger that is configured to curve with the curve of the plenum. The heat exchanger preferably comprises transversely arranged hollow tubes that contain a circulating thermal fluid that is heated outside of the oven.
  • Preferably, the oven includes two drums and two spiral conveyors that surround each of the drums respectively. The output of one conveyor delivers product being cooked to an input of the next spiral conveyor.
  • The oven is designed for cooking a high amount of meat and chicken products.
  • The drums form the largest components of the system, and provide the main source of drive for the conveyor belt, which can be 120 meter in length. The spiral conveyor system can be configured with the conveyor belt entering at the bottom of the drum and exiting at the top. Alternately, the in-feed and out-feed of the spiral conveyors can be the opposite of this arrangement. During the belt's helical travel, its edge is held in tight contact with the drum, so that the friction created by the wraps of the belt around the drum is sufficient to drive the belt through the system. The drum is driven from underneath by an electric motor and can be either direct or chain-driven. The mechanism that keeps the belt tight against the drum is a secondary drive, or take-up or auxiliary drive. The auxiliary drive provides just enough pull on the belt to keep the belt in tight contact with the drum and to help set belt speed, not to provide the driving force to the belt. This keeps belt tension low.
  • Numerous other advantages and features of the present invention will be become readily apparent from the following detailed description of the invention and the embodiments thereof, and from the accompanying drawings.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a front perspective view of the dual spiral oven according to one embodiment of the present invention;
  • FIG. 2 is a front perspective view of the dual spiral oven of FIG. 1 with an outer skin or housing removed to view underlying components;
  • FIG. 3 is a schematic top view showing an air flow arrangement for the oven;
  • FIG. 4 is a further schematic top view showing the air flow arrangement in the oven;
  • FIGS. 5 and 6 are schematic diagrams of spiral oven conveyor belts;
  • FIG. 7 is another schematic top view of the oven shown in FIG. 2;
  • FIG. 8 is an enlarged perspective view taken generally along line 8-8 from FIG. 7 with some walls removed to view otherwise obscured parts;
  • FIG. 9 is a top view taken from FIG. 8;
  • FIG. 10 is a perspective view similar to FIG. 8 but rotated a small amount with some walls removed to view otherwise obscured parts ;
  • FIG. 11 is a perspective view similar to FIG. 10 but rotated a small amount with some walls removed to view otherwise obscured parts;
  • FIG. 12 is a schematic, partially fragmentary perspective view of a plenum taken from FIG. 4.
  • DETAILED DESCRIPTION
  • While this invention is susceptible of embodiment in many different forms, there are shown in the drawings, and will be described herein in detail, specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the specific embodiments illustrated.
  • U.S. Pat. Nos. 5,850,781; 7,107,899 and 5,329,916 are all herein incorporated by reference where not inconsistent with the present disclosure.
  • FIG. 1 illustrates an oven 30 having a housing 32 and conveyor infeed station 34 and a conveyor discharge station 36. Products, such as chicken pieces are loaded onto the conveyor infeed station, pass through the housing 32 and are output at the conveyor discharge station 36. The housing includes a hood 40 that can be raise by four lifting jacks 43. The housing 32 provides outside walls that substantially enclose the oven.
  • FIGS. 2 and 6 illustrate the oven with the housing removed for viewing underlying components. The oven comprises a first drum 44 and a second drum 48. Preferably, drums 44, 48 are solid cylinders. A conveyor belt 54, such as a stainless steel wire mesh belt, is a continuous belt that moves from the product infeed, and helically wraps around the first drum 44 and the second drum 48 and passes to the discharge station 36, and over a secondary drive 60 and back to the product infeed station 34.
  • The secondary drive 60 maintains a tension on the belt 54. The drums 44, 48 are rotated by a motor drive (not shown) and engagement of the drums and an inside edge of the belt 54 circulates the belts helically on the drums and between the infeed station 34 and the discharge station 36 and back.
  • As shown in FIGS. 3 and 4, each drum and associated length of spiral conveyor is arranged in a separate cooking volume of the housing. The drum 44 and a first associated length 54 a of spiral conveyor 54 are located in a first chamber 66 and the drum 46 and a second associated length 54 b of spiral conveyor are located in a second chamber 68. The chamber 66 is heated by at least one ventilator or fan 70 contained in a substantially enclosed fan chamber 71. The fan 70 is driven by a motor 70 m from outside the fan chamber. The fan 70 has a rotary axis approximately radially oriented to the circumference of the drum 44. The fan 70 draws air from chamber 66 in a substantially radial direction R into an inlet 70 a. The fan 70 is mounted to the fan chamber 71 with the inlet 70 a in registry with a fan chamber inlet opening 71 a. The fan chamber inlet 71 a is preferably a funnel or flared inlet, tapered toward the fan inlet, to reduce pressure drop. The air is forced by the fan (s) 70 through an outlet 71 b of the fan chamber into a curved plenum 72 that has an inner curvature that substantially conforms to the outer circumference of the spiral belt 54 a within the chamber 66. The plenum is curved substantially concentrically with the drum 44. The air is moved through the plenum in a tangential direction T. A curved heat exchanger 76 is located within the plenum that conforms in curvature to the curvature of the plenum 72 to maximize heat exchange surface area in the compact oven. The heat exchanger 76 is preferably comprised of tubes which are transversely oriented and which carry hot heat transfer fluid. The heat exchanger 76 can be made up of vertically aligned exchanger banks 76 a, 76 b, 76 c, as shown in FIG. 8. The heat transfer fluid can be heated outside the oven by a gas or oil fired source, or an electric source, or the like. Heat transfer fluid is conducted to and from the heat exchanger banks 76 a, 76 b, 76 c by pipes 77. The plenum 72 is designed to output heated air into the chamber 66 in the tangential direction T so that the air is circulated substantially around the chamber before returning the inlet of the fan 70.
  • Preferably two fans 70 are provided at different elevations but arranged identically when viewed from above, in plan. Both fans force air into the plenum 72 in the same way.
  • The chamber 68 is heated by at least one ventilator or fan 80 contained in a substantially enclosed fan chamber 81. The fan 80 is driven by a motor 80 m from outside the fan chamber. The fan 80 has a rotary axis approximately radially oriented to the circumference of the drum 48. The fan 80 draws air from chamber 68 in a substantially radial direction R into an inlet 80 a. The fan 80 is mounted to the fan chamber with the inlet 80 a in registry with a fan chamber inlet 81 a. The fan chamber inlet 81 a is preferably a funnel or flared inlet, tapered toward the fan inlet, to reduce pressure drop. The air is forced by the fan (s) 80 through an outlet 81 b of the fan chamber into a curved plenum 82 that has an inner curvature that substantially conforms to the outer circumference of the spiral belt 54 b within the chamber 68. The plenum is curved substantially concentrically with the drum. The air is moved through the plenum in a tangential direction T. A curved heat exchanger 86 is located within the plenum that conforms in curvature to the curvature of the plenum 82 to maximize heat exchange surface area in the compact oven. The heat exchanger 86 is preferably comprised of tubes which are transversely oriented and which carry hot heat transfer fluid. The heat exchanger 86 can be made up of vertically aligned exchanger banks 86 a, 86 b, 86 c as shown in FIG. 8. The heat transfer fluid can be heated outside the oven by a gas or oil fired source, or an electric source, or the like. Heat transfer fluid is conducted to and from the exchanger banks 86 a, 86 b, 86 c by pipes 87. The plenum 82 is designed to output heated air into the chamber 68 in the tangential direction T so that the air is circulated substantially around the chamber before returning the inlet of the fan 80.
  • Preferably two fans 80 are provided at different elevations but arranged identically when viewed from above, in plan. Both fans force air into the plenum 82 in the same way.
  • The drums 66 and 68 are rotated clockwise when viewed from above in FIG. 3. The belt 54 in the chamber 66 circulates helically up the drum 44 and the belt in the chamber 68 helically circulates helically down the drum 48.
  • The structure of the fans, heat exchangers and plenums are mirror image identical across a vertical center plane CP of the oven 30. The air flow rotation direction in the chamber 66 is with the drum rotation and belt circulation direction, and the air flow rotation direction in the chamber 68 is counter to the drum rotation direction and belt circulating direction.
  • The chambers 66, 68 are defined by outside walls of the housing 32 and separated by inside walls 102, 104, 106, 108 (FIG. 4) provided in the housing 32. The walls 102, 104 are curved and form side walls of the plenums 72, 82 and extend vertically from a bottom wall of the housing to a top wall of the housing. Opposite sidewalls 103, 105 are curved and form side walls of the plenums 72, 82. Different cooking temperatures and conditions can be maintained within the chambers 66, 68, for controlled cooking. Products, such as chicken pieces are input into the infeed station 34, move on the conveyor 54 up the drum 44 across to the drum 48, down the drum 48 to the discharge station 36. Hot cooking gas, such as air is introduced into the first and second chambers 66, 68 to cook the products while resident in the respective chambers 66, 68.
  • FIG. 7 illustrates that each chamber 66, 68 includes an overhead cleaning manifold 202, 204. A pressurized water and soap mixture or solution is provided to the manifolds 202, 204 and periodically, during a cleaning procedure, a plurality of nozzles 210 spray water and soap mixture or solution S into the respective chamber.
  • FIGS. 8, 10 and 11 illustrate construction of the exchangers 76, 86 with the walls 102, 104 removed in the figures.
  • FIG. 8 illustrates a further cleaning manifold 230 arranged above the exchanger 76. A cleaning manifold 250 is arranged above the exchanger 86 and is a mirror image duplicate of the manifold 230 across the vertical center plane CP of the oven. The manifolds 230, 250 contain a pressurized water and soap mixture or solution.
  • The manifold 230 has a plurality of nozzles 210 for spraying water and soap mixture or solution S onto the top exchanger bank 76 a during a periodic cleaning procedure. Further manifolds arranged between the banks can be used to spray water and soap mixture or solution S onto the banks 76 b and 76 c respectively. The manifold 250 has a plurality of nozzles 210 arranged to spray water and soap mixture or solution onto the top exchanger bank 86 a during a periodic cleaning procedure. Further manifolds arranged between the banks can be used to spray water and soap mixture or solution onto banks 86 b and 86 c respectively.
  • FIG. 8 also shows an extension guide plate 260 and an adjustable spoiler plate 266 that is hinged by a plurality of hinges 270 to the extension guide plate 260 arranged between the heat exchanger 76 and the chamber 66. The extension plate 260 and the spoiler plate 266 can be part of the respective wall 103, 105 of an extension thereof and have a vertical length equal to the respective wall 103, 105. An identical extension guide plate and spoiler plate are arranged between the heat exchanger 86 and the chamber 68, configured as a mirror image duplicate of the guide plate 260 and the adjustable spoiler plate 266 across the vertical center plane CP of the oven.
  • The combination of the two plates 260, 266, with proper adjustment thereof allows for fine tuning of the air flow delivered by the fans 70, 80 to the chambers 66, 68. The hinges 270 include a portion 271 fixed to the extension guide plate 260 and a portion 272 fixed to the spoiler plate 266. The portions 271, 272 are rotatable with respect to each other about a bolt 273, when the bolt is loosened for adjustment of the angle between the plates 260, 266. One the angle is adjusted the bolt 273 is tightened which prevents any further rotation of the plates 260, 266.
  • Particularly, the air flows circumferentially around the respective drum 44, 48 in the respective chambers 66, 68.
  • FIGS. 10 and 11 illustrate a vertically arranged steam header 320 that is adjacent the heat exchanger banks 76 a, 76 b, 76 c. The header 320 contains pressurized steam. The header has a plurality of holes 320 a arranged spaced-apart in the vertical direction. A mirror image identical header 330 with holes 330 a is provided at the outlet of the exchanger 86. Steam under pressure is ejected from the holes 320 a, 330 a into the air stream downstream of the exchangers 76, 86 such that a proper cooking humidity is maintained in the oven chambers 66, 68.
  • The plenums 72, 82 are mirror image identical across the vertical center plane CP of the oven. Therefore, only the plenum 82 will be described in detail in FIG. 12.
  • FIG. 12 illustrates the plenum 82. The plenum includes the curved vertical sidewalls 102, 103 that are substantially concentric with the drum 48. A top wall 400 substantially closes the space between the walls 102, 103 at a top end thereof and a bottom wall 404 substantially closes the space between the walls 102, 103 at a bottom end thereof. A fan chamber wall 408 provides at least one and preferably two outlets 81 b, 81 b for two fans 80. Although a flat wall 408 is shown in FIG. 12, it is beneficial to provide an expanding or funnel outlet 81 d, expanding in a direction away from the fans and toward the heat exchangers in the direction T (FIG. 3) as shown in FIG. 7, to minimize pressure drop. Otherwise, the wall 408 closes an opening defined by the walls 102, 103, 400, 404. An outlet open face 412 defined by the walls 102, 103, 400, 404, at an end opposite the wall 408, allows air to pass from the plenum 82 into the chamber 68. The extension 260, and the spoiler 266, as an adjustable part of inside wall 103, can be adjusted to most effectively direct forced air flow around the circumference of the drum 48. The walls 102, 103, 400, 404 form a curved rectangular tube for directing air in a curved path from the outlets 81 b, 81 b within the chamber 68. The heat exchanger 86 is contained within the walls 102, 103, 400, 404. The walls 400, 404 can be regions or portions of an overall housing hood and floor respectively.
  • From the foregoing, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It is to be understood that no limitation with respect to the specific apparatus illustrated herein is intended or should be inferred.
  • All references, including publications, patent applications, and patents, cited herein are hereby incorporated by reference to the same extent as if each reference were individually and specifically indicated to be incorporated by reference and were set forth in its entirety herein, to the extent that the references are not inconsistent with the present disclosure.

Claims (26)

The invention claimed is:
1. An oven comprising:
a first drum oriented with a first vertical axis and a first motor for rotating the first drum about the axis;
a first length of conveyor belt helically surrounding the first drum, and having an infeed end and outlet end;
a first chamber defined by walls surrounding the first drum and the first length of conveyor belt;
a first plenum positioned within the first chamber, curved substantially concentrically with the first drum, and surrounding at least a portion of the first length of conveyor belt, the first plenum forming a substantially closed air pathway having an inlet at one end and an outlet at an opposite end passing air into the first chamber;
a first fan arranged to circulate air within the first chamber and force air into the first plenum inlet, through the first plenum and out of the first plenum outlet;
a first heat exchanger arranged in the first plenum;
a second drum oriented with a second vertical axis and a second motor for rotating the second drum about the axis;
a second length of conveyor belt helically surrounding the second drum, and having an inlet end to receive products from the outlet end of the first length of conveyor belt and a discharge end;
a second chamber defined by walls surrounding the second drum and the second length of conveyor belt;
a second plenum within the second chamber and being curved substantially concentrically with the second drum, the second plenum forming a substantially closed air pathway having an inlet and an outlet passing air into the second chamber;
a second fan arranged to circulate air within the second chamber and force air into the second plenum inlet, through the second plenum and out of the second plenum outlet; and
a second heat exchanger arranged in the second plenum;
wherein the first fan is arranged in a first fan chamber that has a radially oriented inlet with respect to the first drum and a tangentially oriented outlet with respect to the first drum that is in substantially enclosed air flow communication with the inlet of the first plenum;
wherein the outlet of the first plenum and the inlet of the first fan chamber are arranged to cause air circulated in the first chamber to substantially circulate around the first drum;
wherein the second fan is arranged in a second fan chamber that has a radially oriented inlet with respect to the second drum and a tangentially oriented outlet with respect to the second drum that is in substantially enclosed air flow communication with the inlet of the second plenum; and
wherein the outlet of the second plenum and the second fan chamber inlet are arranged to cause air circulated in the second chamber to substantially circulate around the second drum.
2. The oven of claim 1, wherein the air circulated in the first chamber substantially circulates around the first drum from the first plenum outlet to the inlet of the first fan chamber, and wherein the air circulated in the second chamber substantially circulates around the second drum from the second plenum outlet to the inlet of the second fan chamber.
3. The oven of claim 1, wherein the first heat exchanger has a curvature to conform to a curvature of the first plenum.
4. The oven of claim 1, wherein the first heat exchanger has a curvature to conform to a curvature of the first plenum and the second heat exchanger has a curvature to conform to a curvature of the second plenum.
5. The oven of claim 4, wherein the first plenum and the first heat exchanger are shaped in mirror image fashion across a vertical center plane of the oven to the second plenum and the second heat exchanger.
6. The oven of claim 5, wherein the first and second heat exchangers comprise tubes for containing a hot heat transfer fluid.
7. The oven of claim 6, wherein the tubes are arranged transversely to an air flow direction across the tubes.
8. The oven of claim 1, wherein the first fan chamber is inside the first chamber, and wherein the first fan is driven by an electric motor outside the first fan chamber.
9. The oven of claim 1, wherein the first plenum is a curved rectangular tube arranged along an outer perimeter of the first chamber.
10. The oven of claim 9, further comprising an additional fan arranged below the first fan, wherein the first fan and the additional fan are arranged in the first fan chamber.
11. The oven of claim 1, further comprising an adjustable spoiler plate that is an extension of an inside wall of the plenum that is closest to the first drum at the plenum outlet and is hinged to the plenum, and wherein the adjustable spoiler plate is adjustable in angle to adjust a direction of re-circulated air flow from the plenum outlet within the first chamber.
12. The oven of claim 1, further comprising a vertically arranged steam header that is adjacent the first heat exchanger, wherein the header has a plurality of holes such that steam under pressure is ejected from the holes into an air stream downstream of the first heat exchanger.
13. The oven of claim 1, further comprising a cleaning manifold arranged above the first heat exchanger, wherein the cleaning manifold is configured to contain and dispense a pressurized water and soap mixture during a cleaning operation, and wherein the cleaning manifold includes a plurality of nozzles for spraying water and soap mixture onto a top of the first heat exchanger.
14. The oven of claim 1, wherein the first plenum is positioned between the first length of conveyor belt and at least one of the walls defining the first chamber.
15. The oven of claim 1, wherein the first length of conveyor belt has an outer circumference and the first plenum has an inner curvature that substantially conforms to at least a portion of the outer circumference of the first length of conveyor belt.
16. An oven comprising:
a first drum oriented with a first vertical axis and a first motor for rotating the first drum about the axis;
a first length of conveyor belt helically surrounding the first drum, and having an infeed end and outlet end;
a first chamber defined by walls surrounding the first drum and the first length of conveyor belt, wherein the first chamber has a first cooking condition;
a first plenum positioned within the first chamber and forming an air pathway having an inlet and an outlet, wherein the outlet passes air into the first chamber;
a first heat exchanger arranged in the first plenum;
a second drum oriented with a second vertical axis and a second motor for rotating the second drum about the axis;
a second length of conveyor belt helically surrounding the second drum, and having an inlet end to receive products from the outlet end of the first length of conveyor belt and a discharge end;
a second chamber defined by walls surrounding the second drum and the second length of conveyor belt, wherein the second chamber has a second cooking condition that is adapted to be controlled differently than the first cooking condition of the first chamber;
a second plenum positioned within the second chamber and forming an air pathway having an inlet and an outlet, wherein the outlet passes air into the second chamber; and
a second heat exchanger arranged in the second plenum.
17. The oven of claim 16, wherein the first cooking condition is associated with a first temperature and the second cooking condition is associated with a second temperature, wherein the oven is adapted to be controlled to result in the first temperature being different than the second temperature.
18. The oven of claim 16, wherein the first cooking condition is associated with a first humidity and the second cooking condition is associated with a second humidity, wherein the oven is adapted to be controlled to result in the first humidity being different than the second humidity.
19. The oven of claim 16, wherein the first cooking condition is associated with a first temperature and a first humidity and the second cooking condition is associated with a second temperature and a second humidity, wherein the oven is adapted to control the first cooking condition and the second cooking condition to be different.
20. The oven of claim 16, wherein the first plenum is curved substantially concentrically with the first drum and surrounds at least a portion of the first length of conveyor belt, and wherein the second plenum is curved substantially concentrically with the second drum and surrounds at least a portion of the second length of conveyor belt.
21. The oven of claim 16, further comprising a steam header that is adjacent the first heat exchanger, wherein the steam header has a plurality of holes such that steam under pressure is adapted to be ejected from the holes into an air stream downstream of the first heat exchanger.
22. The oven of claim 21, wherein the first cooking condition is associated with a first humidity, and wherein the steam header is adapted to be controlled to control the first humidity in the first chamber.
23. The oven of claim 21, wherein the steam header is vertically arranged.
24. The oven of claim 16, further comprising a first steam header adjacent the first heat exchanger and a second steam header adjacent the second heat exchanger, wherein the first steam header has a plurality of holes such that steam under pressure is adapted to be ejected from the holes into an air stream downstream of the first heat exchanger and the second steam header has a plurality of holes such that steam under pressure is adapted to be ejected from the holes into an air stream downstream of the second heat exchanger.
25. The oven of claim 24, wherein the first cooking condition is associated with a first humidity and the second cooking condition is associated with a second humidity, and wherein the first steam header is adapted to be controlled to control the first humidity in the first chamber and the second steam header is adapted to be controlled to control the second humidity in the second chamber, wherein the first humidity and the second humidity are adapted to be different.
26. The oven of claim 24, wherein the first and second steam headers are vertically arranged.
US14/855,289 2012-01-27 2015-09-15 Dual drum spiral oven Abandoned US20160000095A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US201261591717P true 2012-01-27 2012-01-27
US201261591955P true 2012-01-29 2012-01-29
US201261593326P true 2012-02-01 2012-02-01
US13/750,540 US9161651B2 (en) 2012-01-27 2013-01-25 Dual drum spiral oven
US14/855,289 US20160000095A1 (en) 2012-01-27 2015-09-15 Dual drum spiral oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/855,289 US20160000095A1 (en) 2012-01-27 2015-09-15 Dual drum spiral oven

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US13/750,540 Continuation US9161651B2 (en) 2012-01-27 2013-01-25 Dual drum spiral oven

Publications (1)

Publication Number Publication Date
US20160000095A1 true US20160000095A1 (en) 2016-01-07

Family

ID=47747743

Family Applications (2)

Application Number Title Priority Date Filing Date
US13/750,540 Active 2033-07-13 US9161651B2 (en) 2012-01-27 2013-01-25 Dual drum spiral oven
US14/855,289 Abandoned US20160000095A1 (en) 2012-01-27 2015-09-15 Dual drum spiral oven

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US13/750,540 Active 2033-07-13 US9161651B2 (en) 2012-01-27 2013-01-25 Dual drum spiral oven

Country Status (4)

Country Link
US (2) US9161651B2 (en)
EP (1) EP2806744A1 (en)
CA (1) CA2860529C (en)
WO (1) WO2013112052A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170224854A1 (en) * 2015-02-27 2017-08-10 The Boeing Company Systems and methods for sanitizing a tray table

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2806744A1 (en) * 2012-01-27 2014-12-03 TS Techniek BV Dual drum spiral oven
US9516883B1 (en) 2013-07-18 2016-12-13 Star Manufacturing International Inc. Heating assembly and method for tortilla like food
CN103776219B (en) * 2014-01-24 2016-02-17 南通四方冷链装备股份有限公司 A kind of have the double helix quick freezing unit delaying frosting function
US20170013991A1 (en) * 2015-07-16 2017-01-19 Unitherm Food Systems, Inc Two-tier heat transfer system and method for its use
CA3005655A1 (en) * 2015-11-17 2017-05-26 Gea Food Solutions Bakel B.V. Oven with improved drag
EP3419425A4 (en) 2016-02-26 2020-01-08 Provisur Technologies, Inc. Cooking devices and methods of using the same
WO2017192955A1 (en) * 2016-05-05 2017-11-09 Provisur Technologies, Inc. Spiral cooking devices and methods of using the same
US20180213801A1 (en) * 2017-01-27 2018-08-02 John Bean Technologies Corporation Spiral conveyor thermal processing system

Citations (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176118A (en) * 1962-09-27 1965-03-30 Gen Electric Temperature control means for convertible drawer oven
US3348659A (en) * 1967-04-19 1967-10-24 Ashworth Bros Inc Conveyor system
US3412476A (en) * 1966-03-15 1968-11-26 Frigoscandia Ab Plant for treating products with air as a treating agent
US3682295A (en) * 1970-05-11 1972-08-08 Ashworth Bros Inc Edge driven conveyor system
US3750859A (en) * 1971-10-26 1973-08-07 Rieke Corp Helical path conveyor
US3794156A (en) * 1972-01-31 1974-02-26 Rothmans Of Pall Mall Conveyor
US3938651A (en) * 1973-03-07 1976-02-17 Frigoscandia Contracting Ab Self-supporting spiral conveyor
US4118181A (en) * 1976-12-11 1978-10-03 Hirosuke Onodera Baking apparatus
US4191881A (en) * 1976-04-02 1980-03-04 Jeno F. Paulucci Food oven
US4514167A (en) * 1983-10-11 1985-04-30 Santrade Ltd. Oven heating system
US4726766A (en) * 1986-12-01 1988-02-23 Stewart Systems, Inc. Air circulation and exhaust control system for commerical ovens
US4866354A (en) * 1988-04-25 1989-09-12 Refrigeration Engineering Corporation Spiral freezer drive system
US4944162A (en) * 1989-11-07 1990-07-31 Liquid Carbonic Corporation Helical conveyor food freezer
US4981208A (en) * 1990-02-16 1991-01-01 The Cambridge Wire Cloth Company Magnetic drive spiral conveyor system
US4997365A (en) * 1990-01-23 1991-03-05 Apv Baker Inc. Spiral conveyor baking apparatus
US5010808A (en) * 1990-01-23 1991-04-30 Apv Baker Inc. Spiral conveyor oven
US5078120A (en) * 1990-01-26 1992-01-07 Stein, Inc. Cooking oven for slow cooking of food products
US5105934A (en) * 1988-12-23 1992-04-21 Frigoscandia Contracting Ab Conveyor system having an endless conveyor belt
US5111929A (en) * 1991-04-24 1992-05-12 Checker Machine, Inc. Spiral conveyor cleaning system
US5189948A (en) * 1991-02-05 1993-03-02 Beltec International Low temperature spiral conduction vapor cooker and process
US5228557A (en) * 1991-11-27 1993-07-20 Tecno Pool S.P.A. Chain conveyor with improved drive device
US5243962A (en) * 1990-01-26 1993-09-14 Stein, Inc. Cooking oven for slow-cooking of food products
US5329916A (en) * 1992-02-26 1994-07-19 Koppens Machinefabriek B.V. Oven
US5407692A (en) * 1991-08-15 1995-04-18 Heat And Control, Inc. Process for treating food products with steam
US5447223A (en) * 1994-03-24 1995-09-05 Sony Electronics, Inc. Method and apparatus for a vertical flow material working system
US5615603A (en) * 1994-07-29 1997-04-01 Ing. Polin & C. S.P.A. Baking oven, particularly for bread or confectionery
US5702245A (en) * 1996-03-20 1997-12-30 Stein, Inc. Conveyor for processing equipment having gas flow compensation
US5836240A (en) * 1996-05-03 1998-11-17 Koppens B.V. Oven with hot air guide
US5850781A (en) * 1996-10-15 1998-12-22 Koppens B.V. Oven with zones situated above one another
US6016904A (en) * 1997-06-03 2000-01-25 Molins Plc Reservoir system for rod-like articles
US6065463A (en) * 1998-10-19 2000-05-23 Sasib Bakery North America, Inc. Forced convective track oven
US6092641A (en) * 1996-06-21 2000-07-25 G.D Societa' Per Azioni Method and device for vertically conveying packets of cigarettes
US6095805A (en) * 1997-04-11 2000-08-01 Koppens Convenience Food Systems Steam oven
US6138660A (en) * 1999-01-06 2000-10-31 Sasib Bakery North America, Inc. Forced convective track oven having oval spirals
US6244168B1 (en) * 1998-02-02 2001-06-12 Stork Titan B.V. Treatment device for treating food products with conditioned air
US6247922B1 (en) * 1999-06-04 2001-06-19 Koppens B.V. Helical oven with improved belt drive
US6394261B1 (en) * 2000-08-03 2002-05-28 Tarpaulin.Com, Inc. Variable counterweighted take-up assembly for endless conveyor and endless conveyor system having such variable counterweighted take-up assembly and method of controlling same
US20020162462A1 (en) * 2001-04-02 2002-11-07 Cfs Bakel B.V. Oven with drip collection
US6523677B1 (en) * 2000-11-15 2003-02-25 Tarpaulin.Com, Inc. Low tension dual helical conveyor system
US6689407B2 (en) * 2001-06-25 2004-02-10 Goodmark Foods, Inc. Enhanced capacity food processing systems with efficient space utilization
US6691698B2 (en) * 2001-09-14 2004-02-17 Fmc Technologies Inc. Cooking oven having curved heat exchanger
US6707010B2 (en) * 2001-01-05 2004-03-16 Koppens B.V. Oven with fluid jet device
US6713107B2 (en) * 2002-03-01 2004-03-30 Conagra Foods, Inc. Airflow distribution systems for food processors
US6725998B2 (en) * 1999-01-22 2004-04-27 Hartness International, Inc. Apparatus for controlling the flow of articles
US20050092730A1 (en) * 2002-01-10 2005-05-05 Nothum Robert G.Jr. Spiral oven, heat delivery, enclosure and drive
US6976369B2 (en) * 2002-01-10 2005-12-20 Nothum Jr Robert G Spiral freezer, refrigeration delivery, enclosure and drive
US7032742B2 (en) * 2004-04-02 2006-04-25 Hartness International, Inc. Differential drive spiral accumulator apparatus
US20060131139A1 (en) * 2002-07-08 2006-06-22 Lennart Olsson Conveyor belt
US7165670B2 (en) * 2002-02-04 2007-01-23 Conagra Foods, Inc. Food transport routing systems, devices, and guides for food processing systems and related methods
US7240788B2 (en) * 1997-08-19 2007-07-10 Carter Control Systems, Inc. Spiral conveyor apparatus with automatic flow control
US7258226B2 (en) * 2003-10-14 2007-08-21 The Boc Group, Inc. Self-stacking spiral conveyor with modular drive system
US7258227B2 (en) * 2004-06-24 2007-08-21 Alit S.R.L. Drive for conveyor belts
US7270231B2 (en) * 2005-05-26 2007-09-18 Heber Gerald J Self-stacking spiral conveyor belt
US7299589B2 (en) * 2003-10-22 2007-11-27 Harris Corporation Telescoping boom actuation mechanism formed of concentrically nested tubular boom sections mutually engaged by roller assemblies riding on helical tracks
US7331445B2 (en) * 2003-11-20 2008-02-19 Pride Conveyance Methods and systems to facilitate spiral conveyance
US7374392B2 (en) * 2004-02-27 2008-05-20 G.D Societa' Per Azioni Method and device for forming a stack of packets
US7374035B2 (en) * 2002-11-20 2008-05-20 Frigoscandia Equipment Ab Supporting installation and bearing element therefor
US20080308386A1 (en) * 2005-12-08 2008-12-18 Specialty Conveyor B.V. Device for Buffering Products and a Method of Operating This
US20090181138A1 (en) * 2008-01-11 2009-07-16 David Howard Process for producing precooked bacon slices
US20100096243A1 (en) * 2006-12-22 2010-04-22 Specialty Conveyor B. V. Conveyor system
US7878321B2 (en) * 2005-02-11 2011-02-01 Ashworth Bros., Inc. Helical conveyor without overdrive
US7886657B2 (en) * 2002-06-07 2011-02-15 Nothum Jr Robert G Integrated compact food process line and process
US20110084056A1 (en) * 2008-04-18 2011-04-14 Hendrikus Antonius Jacobus Kuenen Oven and process to control the air-flow and air-leakages between two chambers
US20110168689A1 (en) * 2008-06-19 2011-07-14 Cfs Bakel B.V. Oven and process to control the air-flow over the belt width in a spiral oven
US20110226137A1 (en) * 2007-12-28 2011-09-22 Van Der Eerden Hendricus Franciscus Jacobus Maria Treatment device, in particular oven
US20110247355A1 (en) * 2007-08-13 2011-10-13 Mccormick Stephen A Crossflow spiral heat transfer system with self-stacking spiral conveyor belt
US20110259711A1 (en) * 2008-10-15 2011-10-27 Lijesa Developments Pty Ltd Buffer conveyor having parallel tracks
US8272320B2 (en) * 2006-09-01 2012-09-25 Nieco Corporation Broiler, conveyor oven, and toaster system with pressurized air guide for heat and flames
US8302763B2 (en) * 2007-05-07 2012-11-06 Specialty Conveyor B.V. Apparatus and method for buffering products
US20130133637A1 (en) * 2011-05-31 2013-05-30 John Bean Technologies Corporation Systems and methods for adjusting oven cooking zones
US20140037809A1 (en) * 2012-07-31 2014-02-06 Calan Group, Inc. Convection heating in track ovens
US8646383B1 (en) * 2009-09-15 2014-02-11 David Howard Spiral oven apparatus and method of cooking
US8926463B1 (en) * 2010-09-13 2015-01-06 Tarpaulin.Com, Inc. Drive mechanism for a cage in a spiral conveyor belt system
US20150079259A1 (en) * 2013-06-17 2015-03-19 W.C. Bradley Co. High efficiency apparatus and method for cooking, heating and drying
US20150245643A1 (en) * 2012-09-25 2015-09-03 Gea Food Solutions Bakel B.V. Combination of cooking and smoking
US9161651B2 (en) * 2012-01-27 2015-10-20 Ts Techniek Bv Dual drum spiral oven
US20150342227A1 (en) * 2013-01-04 2015-12-03 Gea Food Solutions Bakel B.V. Combination of drying and smoking
US20150353285A1 (en) * 2012-12-27 2015-12-10 Mayekawa Mfg. Co., Ltd. Conveyor device for conveying food
US9365352B2 (en) * 2012-03-27 2016-06-14 Specialty Conveyor B.V. Conveyor
US9409715B2 (en) * 2012-11-09 2016-08-09 Ambaflex International B.V. Conveyor comprising two helical tracks connected by a bridging track
US9504258B1 (en) * 2011-03-09 2016-11-29 Unitherm Food Systems, Inc. Airflow pattern for spiral ovens

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE369828B (en) * 1973-01-26 1974-09-23 Tipe Revent Ab
GB1450336A (en) * 1974-03-18 1976-09-22 Denholm Ltd Andrew Bakery oven
FR2428977A1 (en) * 1978-06-23 1980-01-18 Pons Ste Nle Const Fours Griddle cake oven with rotary horizontal baking plates - has reduced heat loss via shuttered loading and discharge openings
GB2096878B (en) 1979-07-26 1983-10-26 Hester Ind Inc Process of preparing food products
US4631029A (en) 1983-12-09 1986-12-23 Lanham Machinery Company, Inc. Baking oven with heated air distribution-II
JPH0673443B2 (en) * 1986-02-19 1994-09-21 ホシザキ電機株式会社 Defroster
US4689303A (en) * 1986-02-26 1987-08-25 Kvm Engineering, Inc. Controlled circulation incubator
US5394791B1 (en) * 1994-01-03 1998-09-22 Premark Feg Corp Steam generator for convection oven
US5460260A (en) 1994-06-22 1995-10-24 York International Corporation Helical conveyor
DE69926493T2 (en) 1998-03-19 2006-04-13 Air Operation Technologies Inc., Shimonoseki Cooling and cooling process
US5974692A (en) * 1998-05-06 1999-11-02 Frigoscandia Equipment Ab Apparatus for air-treatment of products
JP3771556B2 (en) 2003-10-27 2006-04-26 エアオペレーションテクノロジーズ株式会社 Cooling system
NL1027446C2 (en) 2004-11-08 2006-05-09 Stork Titan Bv Treatment device and method for treating food products with conditioned air.

Patent Citations (91)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3176118A (en) * 1962-09-27 1965-03-30 Gen Electric Temperature control means for convertible drawer oven
US3412476A (en) * 1966-03-15 1968-11-26 Frigoscandia Ab Plant for treating products with air as a treating agent
US3348659A (en) * 1967-04-19 1967-10-24 Ashworth Bros Inc Conveyor system
US3682295A (en) * 1970-05-11 1972-08-08 Ashworth Bros Inc Edge driven conveyor system
US3750859A (en) * 1971-10-26 1973-08-07 Rieke Corp Helical path conveyor
US3794156A (en) * 1972-01-31 1974-02-26 Rothmans Of Pall Mall Conveyor
US3938651A (en) * 1973-03-07 1976-02-17 Frigoscandia Contracting Ab Self-supporting spiral conveyor
US4191881A (en) * 1976-04-02 1980-03-04 Jeno F. Paulucci Food oven
US4118181A (en) * 1976-12-11 1978-10-03 Hirosuke Onodera Baking apparatus
US4514167A (en) * 1983-10-11 1985-04-30 Santrade Ltd. Oven heating system
US4792303A (en) * 1986-12-01 1988-12-20 Stewart Systems, Inc. Air circulation and exhaust control system for commercial ovens
US4726766A (en) * 1986-12-01 1988-02-23 Stewart Systems, Inc. Air circulation and exhaust control system for commerical ovens
US4866354A (en) * 1988-04-25 1989-09-12 Refrigeration Engineering Corporation Spiral freezer drive system
US5105934A (en) * 1988-12-23 1992-04-21 Frigoscandia Contracting Ab Conveyor system having an endless conveyor belt
US4944162A (en) * 1989-11-07 1990-07-31 Liquid Carbonic Corporation Helical conveyor food freezer
US4997365A (en) * 1990-01-23 1991-03-05 Apv Baker Inc. Spiral conveyor baking apparatus
US5010808A (en) * 1990-01-23 1991-04-30 Apv Baker Inc. Spiral conveyor oven
US5078120A (en) * 1990-01-26 1992-01-07 Stein, Inc. Cooking oven for slow cooking of food products
US5243962A (en) * 1990-01-26 1993-09-14 Stein, Inc. Cooking oven for slow-cooking of food products
US4981208A (en) * 1990-02-16 1991-01-01 The Cambridge Wire Cloth Company Magnetic drive spiral conveyor system
US5189948A (en) * 1991-02-05 1993-03-02 Beltec International Low temperature spiral conduction vapor cooker and process
US5111929A (en) * 1991-04-24 1992-05-12 Checker Machine, Inc. Spiral conveyor cleaning system
US5407692A (en) * 1991-08-15 1995-04-18 Heat And Control, Inc. Process for treating food products with steam
US5228557A (en) * 1991-11-27 1993-07-20 Tecno Pool S.P.A. Chain conveyor with improved drive device
US5329916A (en) * 1992-02-26 1994-07-19 Koppens Machinefabriek B.V. Oven
US5447223A (en) * 1994-03-24 1995-09-05 Sony Electronics, Inc. Method and apparatus for a vertical flow material working system
US5615603A (en) * 1994-07-29 1997-04-01 Ing. Polin & C. S.P.A. Baking oven, particularly for bread or confectionery
US5702245A (en) * 1996-03-20 1997-12-30 Stein, Inc. Conveyor for processing equipment having gas flow compensation
US5836240A (en) * 1996-05-03 1998-11-17 Koppens B.V. Oven with hot air guide
US6092641A (en) * 1996-06-21 2000-07-25 G.D Societa' Per Azioni Method and device for vertically conveying packets of cigarettes
US5850781A (en) * 1996-10-15 1998-12-22 Koppens B.V. Oven with zones situated above one another
US6095805A (en) * 1997-04-11 2000-08-01 Koppens Convenience Food Systems Steam oven
US6016904A (en) * 1997-06-03 2000-01-25 Molins Plc Reservoir system for rod-like articles
US7240788B2 (en) * 1997-08-19 2007-07-10 Carter Control Systems, Inc. Spiral conveyor apparatus with automatic flow control
US6244168B1 (en) * 1998-02-02 2001-06-12 Stork Titan B.V. Treatment device for treating food products with conditioned air
US6494131B2 (en) * 1998-04-28 2002-12-17 Stork Titan B.V. Treatment device for treating food products with conditioned air
US6065463A (en) * 1998-10-19 2000-05-23 Sasib Bakery North America, Inc. Forced convective track oven
US6138660A (en) * 1999-01-06 2000-10-31 Sasib Bakery North America, Inc. Forced convective track oven having oval spirals
US6725998B2 (en) * 1999-01-22 2004-04-27 Hartness International, Inc. Apparatus for controlling the flow of articles
US6247922B1 (en) * 1999-06-04 2001-06-19 Koppens B.V. Helical oven with improved belt drive
US6394261B1 (en) * 2000-08-03 2002-05-28 Tarpaulin.Com, Inc. Variable counterweighted take-up assembly for endless conveyor and endless conveyor system having such variable counterweighted take-up assembly and method of controlling same
US6523677B1 (en) * 2000-11-15 2003-02-25 Tarpaulin.Com, Inc. Low tension dual helical conveyor system
US6707010B2 (en) * 2001-01-05 2004-03-16 Koppens B.V. Oven with fluid jet device
US6658993B2 (en) * 2001-04-02 2003-12-09 Cfs Bakel B.V. Oven with drip collection
US20020162462A1 (en) * 2001-04-02 2002-11-07 Cfs Bakel B.V. Oven with drip collection
US6689407B2 (en) * 2001-06-25 2004-02-10 Goodmark Foods, Inc. Enhanced capacity food processing systems with efficient space utilization
US6691698B2 (en) * 2001-09-14 2004-02-17 Fmc Technologies Inc. Cooking oven having curved heat exchanger
US7107899B2 (en) * 2002-01-10 2006-09-19 Nothum Jr Robert G Spiral oven, heat delivery, enclosure and drive
US20050092730A1 (en) * 2002-01-10 2005-05-05 Nothum Robert G.Jr. Spiral oven, heat delivery, enclosure and drive
US6976369B2 (en) * 2002-01-10 2005-12-20 Nothum Jr Robert G Spiral freezer, refrigeration delivery, enclosure and drive
US7165670B2 (en) * 2002-02-04 2007-01-23 Conagra Foods, Inc. Food transport routing systems, devices, and guides for food processing systems and related methods
US6713107B2 (en) * 2002-03-01 2004-03-30 Conagra Foods, Inc. Airflow distribution systems for food processors
US7886657B2 (en) * 2002-06-07 2011-02-15 Nothum Jr Robert G Integrated compact food process line and process
US20060131139A1 (en) * 2002-07-08 2006-06-22 Lennart Olsson Conveyor belt
US7178662B2 (en) * 2002-07-08 2007-02-20 Frigoscandia Ab Conveyor belt
US7374035B2 (en) * 2002-11-20 2008-05-20 Frigoscandia Equipment Ab Supporting installation and bearing element therefor
US7258226B2 (en) * 2003-10-14 2007-08-21 The Boc Group, Inc. Self-stacking spiral conveyor with modular drive system
US7299589B2 (en) * 2003-10-22 2007-11-27 Harris Corporation Telescoping boom actuation mechanism formed of concentrically nested tubular boom sections mutually engaged by roller assemblies riding on helical tracks
US7331445B2 (en) * 2003-11-20 2008-02-19 Pride Conveyance Methods and systems to facilitate spiral conveyance
US7374392B2 (en) * 2004-02-27 2008-05-20 G.D Societa' Per Azioni Method and device for forming a stack of packets
US7032742B2 (en) * 2004-04-02 2006-04-25 Hartness International, Inc. Differential drive spiral accumulator apparatus
US7258227B2 (en) * 2004-06-24 2007-08-21 Alit S.R.L. Drive for conveyor belts
US7878321B2 (en) * 2005-02-11 2011-02-01 Ashworth Bros., Inc. Helical conveyor without overdrive
US7270231B2 (en) * 2005-05-26 2007-09-18 Heber Gerald J Self-stacking spiral conveyor belt
US20080308386A1 (en) * 2005-12-08 2008-12-18 Specialty Conveyor B.V. Device for Buffering Products and a Method of Operating This
US8272320B2 (en) * 2006-09-01 2012-09-25 Nieco Corporation Broiler, conveyor oven, and toaster system with pressurized air guide for heat and flames
US8328004B2 (en) * 2006-12-22 2012-12-11 Specialty Conveyor B.V. Conveyor system
US20100096243A1 (en) * 2006-12-22 2010-04-22 Specialty Conveyor B. V. Conveyor system
US8302763B2 (en) * 2007-05-07 2012-11-06 Specialty Conveyor B.V. Apparatus and method for buffering products
US20110247355A1 (en) * 2007-08-13 2011-10-13 Mccormick Stephen A Crossflow spiral heat transfer system with self-stacking spiral conveyor belt
US20110226137A1 (en) * 2007-12-28 2011-09-22 Van Der Eerden Hendricus Franciscus Jacobus Maria Treatment device, in particular oven
US9044022B2 (en) * 2007-12-28 2015-06-02 Marel Townsend Further Processing B.V. Twin sprial oven
US20090181138A1 (en) * 2008-01-11 2009-07-16 David Howard Process for producing precooked bacon slices
US20150250213A1 (en) * 2008-01-11 2015-09-10 Unitherm Food Systems, Inc. Process for Producing Precooked Bacon Slices
US20110084056A1 (en) * 2008-04-18 2011-04-14 Hendrikus Antonius Jacobus Kuenen Oven and process to control the air-flow and air-leakages between two chambers
US8415592B2 (en) * 2008-06-19 2013-04-09 Cfs Bakel B.V. Oven and process to control the air-flow over the belt width in a spiral oven
US20110168689A1 (en) * 2008-06-19 2011-07-14 Cfs Bakel B.V. Oven and process to control the air-flow over the belt width in a spiral oven
US9181041B2 (en) * 2008-10-15 2015-11-10 Specialty Conveyor B.V. Buffer conveyor having parallel tracks
US20110259711A1 (en) * 2008-10-15 2011-10-27 Lijesa Developments Pty Ltd Buffer conveyor having parallel tracks
US8646383B1 (en) * 2009-09-15 2014-02-11 David Howard Spiral oven apparatus and method of cooking
US8926463B1 (en) * 2010-09-13 2015-01-06 Tarpaulin.Com, Inc. Drive mechanism for a cage in a spiral conveyor belt system
US9504258B1 (en) * 2011-03-09 2016-11-29 Unitherm Food Systems, Inc. Airflow pattern for spiral ovens
US20130133637A1 (en) * 2011-05-31 2013-05-30 John Bean Technologies Corporation Systems and methods for adjusting oven cooking zones
US9161651B2 (en) * 2012-01-27 2015-10-20 Ts Techniek Bv Dual drum spiral oven
US9365352B2 (en) * 2012-03-27 2016-06-14 Specialty Conveyor B.V. Conveyor
US20140037809A1 (en) * 2012-07-31 2014-02-06 Calan Group, Inc. Convection heating in track ovens
US20150245643A1 (en) * 2012-09-25 2015-09-03 Gea Food Solutions Bakel B.V. Combination of cooking and smoking
US9409715B2 (en) * 2012-11-09 2016-08-09 Ambaflex International B.V. Conveyor comprising two helical tracks connected by a bridging track
US20150353285A1 (en) * 2012-12-27 2015-12-10 Mayekawa Mfg. Co., Ltd. Conveyor device for conveying food
US20150342227A1 (en) * 2013-01-04 2015-12-03 Gea Food Solutions Bakel B.V. Combination of drying and smoking
US20150079259A1 (en) * 2013-06-17 2015-03-19 W.C. Bradley Co. High efficiency apparatus and method for cooking, heating and drying

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170224854A1 (en) * 2015-02-27 2017-08-10 The Boeing Company Systems and methods for sanitizing a tray table
US20170224855A1 (en) * 2015-02-27 2017-08-10 The Boeing Company Systems and methods for sanitizing a tray table

Also Published As

Publication number Publication date
EP2806744A1 (en) 2014-12-03
CA2860529C (en) 2016-11-22
US9161651B2 (en) 2015-10-20
WO2013112052A1 (en) 2013-08-01
CA2860529A1 (en) 2013-08-01
US20130220145A1 (en) 2013-08-29

Similar Documents

Publication Publication Date Title
EP0120075B1 (en) High efficiency impingement heating and cooling apparatus
JP3159262B2 (en) Method and apparatus for transferring heat between gas and food in an oven
US4792303A (en) Air circulation and exhaust control system for commercial ovens
EP1421885B1 (en) High speed variable size toaster
EP0316373B1 (en) Food cooking oven with duct fingers and method
DE69731274T2 (en) Hot convection oven
US7087872B1 (en) Multi-shelved convection microwave oven
US4474498A (en) Multiple-pass impingement heating and cooling device
US6494131B2 (en) Treatment device for treating food products with conditioned air
US6320165B1 (en) Impingement oven airflow devices and methods
US4121509A (en) Controlled atmosphere broiler
CA1198937A (en) Impingement food preparation apparatus
CA2439090C (en) Multiconveyor convection oven
CA2559790C (en) Air impingement conveyor oven
CA1193898A (en) Tunnel heater
US5832812A (en) Dual conveyer oven
US7432483B2 (en) Continuous feed volumetric heating and convection oven
CA1192075A (en) Thermal treatment of food products
US4949629A (en) Cooking a food product in a process vapor at progressively varying rates
US5683240A (en) Balanced air return convection oven
US20030172919A1 (en) Convection oven and related cooking air flow system
US6867392B1 (en) Infrared element and oven
US6837234B2 (en) Oven heat exchanger and floor construction
US20070295322A1 (en) High Speed Convection Oven
US20080099008A1 (en) Re-Circulating Oven With Gas Clean-Up

Legal Events

Date Code Title Description
AS Assignment

Owner name: TS TECHNIEK BV, NETHERLANDS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROS, MICHAEL;STEENTJES, THOMAS F.;REEL/FRAME:036596/0581

Effective date: 20120126

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION