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    Liquid cryogen freezer with improved vapor balance control
    11.
    发明授权
    Liquid cryogen freezer with improved vapor balance control 失效
    具有改善蒸气平衡控制的液体冷冻冷冻机

    公开(公告)号：US4947654A

    公开(公告)日：1990-08-14

    申请号：US444015

    申请日：1989-11-30

    Applicant: Brian Evan Sink ,  Gary D. Lang ,  Benjamin Zyer

    Inventor： Brian Evan Sink ,  Gary D. Lang ,  Benjamin Zyer

    IPC: F25D3/11

    CPC classification number: F25D3/11 ,  B65G2207/24

    Abstract: A cryogenic freezer apparatus for food products includes a conveyor within a thermally insulated enclosure. A cryogen injecting unit is located in said enclosure adjacent the opening thereof, and responsive to a cryogen control signal for introducing liquid cryogen in said enclosure. A blower unit in said enclosure directs cryogen vapor away from said enclosure opening toward the interior of said enclosure. The output of said blower unit being controllable by a blower control signal. A sensing unit within said enclosure senses the cooling capacity of the cryogen vapor at the enclosure opening and generates a sensor output signal which is indicative of the amount of cryogen vapor escaping out of said opening. A control unit, coupled to said sensing unit, said injecting unit, and to said blower unit generates a cryogen control signal and a blower control signal in response to the sensor output signal. Cryogen vapor escaping from the enclosure is limited to an amount needed to maintain an air lock, thus preventing air intrusion into the enclosure.

    Abstract translation: 用于食品的低温冷冻装置包括在绝热外壳内的输送机。 冷却剂注入单元位于邻近其开口的所述外壳中，并响应于用于将液体冷冻剂引入所述​​外壳中的冷冻剂控制信号。 所述外壳中的鼓风机单元将冷冻剂蒸汽远离所述外壳开口朝向所述外壳的内部。 所述鼓风机单元的输出由鼓风机控制信号控制。 所述外壳内的感测单元感测在外壳开口处的冷冻剂蒸汽的冷却能力，并且产生一个传感器输出信号，该信号指示从所述开口排出的冷冻剂蒸汽的量。 耦合到所述感测单元，所述注入单元和所述鼓风机单元的控制单元响应于传感器输出信号产生冷冻剂控制信号和鼓风机控制信号。 从外壳逸出的低温蒸汽被限制在维持气锁所需的量，从而防止空气侵入外壳。

    Helical conveyor food freezer
    12.
    发明授权
    Helical conveyor food freezer 失效
    螺旋输送机食品冷冻机

    公开(公告)号：US4944162A

    公开(公告)日：1990-07-31

    申请号：US432594

    申请日：1989-11-07

    Applicant: Gary D. Lang ,  Brian E. Sink

    Inventor： Gary D. Lang ,  Brian E. Sink

    IPC: B65G17/06 ,  F25D25/04

    CPC classification number: B65G17/062 ,  F25D25/04 ,  B65G2201/02 ,  B65G2207/24

    Abstract: A freezer includes an insulated enclosure for maintaining low temperatures therewithin and a conveyor belt that carries food products throughout the enclosure. The conveyor belt includes a straight-line path section and at least one helical path section and is driven by vertical drive elements carried by a rotating drum about which the conveyor helical path section is located. Upon entering a helical path section from a straight-line path section, the conveyor belt undergoes expansion only, with the inner ends of its transverse rods maintaining a precise spacing which allows smooth interengagement between heads at the inboard ends of the rods and the leading surfaces of the vertical drive elements that are located along the circumference of the rotating drum which defines the curved helical path. Because of the improved arrangement, both an ascending helical path and a descending helical path can be established within a single freezer with both rotating drums simply driven by a single motor.

    Abstract translation: 冷冻器包括用于保持其中的低温的绝缘外壳和在整个外壳内运送食品的输送带。 传送带包括直线路径部分和至少一个螺旋路径部分，并且由垂直驱动元件驱动，垂直驱动元件由旋转鼓承载，输送机螺旋路径部分围绕该转动鼓定位。 在从直线路径部分进入螺旋路径部分时，输送带仅经历膨胀，其横向杆的内端保持精确的间隔，这允许在杆的内侧端部和前表面之间的头部之间的平滑相互接合 沿着限定弯曲螺旋路径的旋转鼓的圆周设置的垂直驱动元件。 由于改进的布置，可以在单个冷冻机内建立上升螺旋路径和下降螺旋路径，其中两个旋转滚筒仅由单个马达驱动。

    Method and apparatus for chilling a food product
    14.
    发明授权
    Method and apparatus for chilling a food product 有权
    用于冷冻食品的方法和装置

    公开(公告)号：US06497106B2

    公开(公告)日：2002-12-24

    申请号：US09761150

    申请日：2001-01-17

    Applicant: Gary D. Lang ,  Robert J. Chamberlain

    Inventor： Gary D. Lang ,  Robert J. Chamberlain

    IPC: F25D1306

    CPC classification number: A23L3/363 ,  A23B4/062 ,  A23B4/064 ,  A23L3/361 ,  A23L3/362 ,  A23L3/375 ,  F25D3/11 ,  F25D29/001 ,  F25D2700/16

    Abstract: Disclosed are a method and apparatus for chilling food product, employing (A) cooling means comprising (1) a rotatable drum, (2) means in said drum for urging pieces through said drum, (3) cryogen dispensing means, and (4) means for rotating said drum; (B) feeding means which includes means for automatically sensing the mass flow rate at which said pieces are being fed into said inlet and for generating electrical signals corresponding to said rate; (C) electronic control means responsive to said signals and temperature inputs for preventing premature flow of cryogen and for automatically controlling the rate at which cryogen is fed so as to lower the temperature of said pieces to the desired exit temperature.

    Abstract translation: 本发明公开了一种冷冻食品的方法和装置，（A）冷却装置，包括（1）可旋转的滚筒，（2）在所述滚筒中的装置，用于通过所述滚筒推动碎片，（3）冷冻剂分配装置，（4） 用于旋转所述滚筒的装置;（B）馈送装置，其包括用于自动感测所述碎片被馈送到所述入口中的质量流量的装置，以及用于产生对应于所述速率的电信号;（C）电子控制装置， 信号和温度输入，用于防止冷冻剂过早流动，并自动控制供应冷冻剂的速率，以便将所述件的温度降低到所需的出口温度。

    Helical conveyor freezer
    16.
    发明授权
    Helical conveyor freezer 失效
    螺旋输送机冰柜

    公开(公告)号：US5205135A

    公开(公告)日：1993-04-27

    申请号：US791893

    申请日：1991-11-13

    Applicant: Gary D. Lang

    Inventor： Gary D. Lang

    IPC: A23L3/36 ,  A23L3/375 ,  F25D3/11 ,  F25D13/06 ,  F25D16/00

    CPC classification number: A23L3/361 ,  A23L3/375 ,  F25D13/067 ,  F25D16/00 ,  F25D3/11 ,  B65G2207/24

    Abstract: A food freezer for continuous freezing of food products utilizing a helical conveyor for transporting the food products through an enclosure having a first cooling zone in which the food products are cooled sufficiently to freeze the exterior surface, and a second cooling zone in which the interior of the food products are frozen. Refrigeration apparatus cools an atmosphere gas within the enclosure and baffle means directs the coldest gas through the food products in the first cooling zone and the gas from the first cooling zone is circulated to the second cooling zone where it passes across the food products in a direction opposite to the direction of travel through the second cooling zone.

    Abstract translation: 一种食品冷冻机，用于使用螺旋输送机连续冷冻食品，所述螺旋输送机用于通过具有第一冷却区域的食品输送食物，所述第一冷却区域足以冷冻所述食品的外表面;以及第二冷却区域， 食品被冻结。 制冷装置冷却外壳内的气氛气体，并且挡板装置引导最冷气体通过第一冷却区域中的食品，并且来自第一冷却区域的气体循环到第二冷却区域，在该第二冷却区域，其沿着方向穿过食品 与通过第二冷却区的行进方向相反。

    N.sub.2 tunnel freezer
    17.
    发明授权
    N.sub.2 tunnel freezer 失效
    N2隧道式冷冻机

    公开(公告)号：US4783972A

    公开(公告)日：1988-11-15

    申请号：US114228

    申请日：1987-10-29

    Applicant: Lewis Tyree, Jr. ,  Martin M. Reynolds ,  Gary D. Lang

    Inventor： Lewis Tyree, Jr. ,  Martin M. Reynolds ,  Gary D. Lang

    IPC: F25D3/11 ,  F25D17/02

    CPC classification number: F25D3/11 ,  F25D2317/0681

    Abstract: A cryogenic freezer having a thermally insulated tunnel-like enclosure with an entrance and an exit and means for conveying products being frozen therethrough. Products are contacted with liquid cryogen at a region generally near the entrance and a blower located closer to the entrance than to the exit controls flow of cryogen vapor. Upstream and downstream baffles and dampers associated with blower are linked together for complementary movement to selectively regulate the upstream and downstream flow of vapor discharged from the blower. Additional blowers circulate the cold cryogenic vapor transverse to the direction of the conveying means. The temperature of vapor leaving the region of the entrance is monitored the orientation of the baffle and damper arrangement is adjusted in accordance with the temperature monitored. The food products can be contacted by liquid nitrogen in a reservoir facilitates cleaning and retards inefficient vaporization.

    Abstract translation: 具有具有入口和出口的隔热隧道状外壳的低温冷冻器以及用于输送被冷冻的产品的装置。 产品在通常靠近入口的区域和位于入口处更靠近冷冻剂蒸气的出口控制流动的鼓风机处与液体冷冻剂接触。 与鼓风机相关联的上游和下游挡板和阻尼器连接在一起用于互补运动，以选择性地调节从鼓风机排出的蒸气的上游和下游流动。 另外的鼓风机将冷的低温蒸气横向于传送装置的方向。 监测离开入口区域的蒸汽的温度，对挡板的方向进行监测，根据监测的温度调节阻尼器装置。 食品可以通过液氮在储存器中接触，有助于清洁并延缓低效汽化。

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