公开(公告)号：US5161517A

公开(公告)日：1992-11-10

申请号：US702604

申请日：1991-05-17

Applicant: Leif A. T. Johansson

Inventor： Leif A. T. Johansson

IPC: F24C1/00 ,  A21B1/24 ,  A21B1/26 ,  A21B3/04 ,  F24C15/34 ,  F24H7/00

CPC classification number: F24C15/34 ,  A21B1/26 ,  A21B3/04 ,  Y10S165/902

Abstract: A steam generator for a convection oven through the oven chamber of which heated air is circulated by means of a fan along a flow path in which the steam generator is positioned, comprises a heat-storage unit having a stack of elongated horizontal supports for supporting ball-shaped heat-storage bodies and means for spreading water over the heat-storage unit. Each support includes a bottom wall having a plurality of polygonal apertures which form seats for respective ones of the heat-storage bodies. The apertures, the size of which is substantially smaller than the largest cross-section of the heat-storage bodies, form flow passages through which water from overlying supports is passed to the top portion of the heat-storage bodies of underlying supports.

Abstract translation: 一种用于通过烘箱的对流烘箱的蒸汽发生器，其中加热的空气通过沿着蒸汽发生器定位的流动路径的风扇循环，其包括具有用于支撑球的细长水平支撑的堆叠的蓄热单元 形蓄热体和用于在蓄热单元上散布水的装置。 每个支撑件包括具有多个多边形孔的底壁，其形成用于各个储热体的座。 这些孔的尺寸基本上小于储热体的最大横截面，形成流动通道，来自上覆的载体的水通过该通道流到下面的支撑件的蓄热体的顶部。

公开(公告)号：US4202259A

公开(公告)日：1980-05-13

申请号：US958331

申请日：1978-11-07

Applicant: Leif A. T. Johansson

Inventor： Leif A. T. Johansson

IPC: A21B1/26 ,  A21B3/04 ,  A47J39/00 ,  A47J37/00

CPC classification number: A21B3/04 ,  A21B1/26 ,  A21B1/44

Abstract: A convection oven has a chamber receptive of a rack across which heated air is circulated. At the downstream side of the air path through the chamber there is a steam generator having a heat accumulator comprising blocks of high thermal conductivity carried on a series of carriers arranged in a parallel superposed vertical stack. At the outset of a baking cycle, water is caused to flow downwardly within the vertical stack against the blocks to generate steam and water vapor which is circulated across the unheated product being baked to control the browning and crispiness of its outer surface.

Abstract translation: 对流烘箱具有容纳加热空气循环的支架的室。 在通过腔室的空气路径的下游侧，具有一个蒸汽发生器，该蒸汽发生器具有一个含有高导热性块的蓄热器，该块具有以平行重合的垂直叠层布置的一系列载体上的载体。 在烘烤循环开始时，使水在垂直堆叠内向下流动抵靠块，以产生蒸汽和水蒸气，该蒸汽和水蒸气在待烘烤的未加热产品上循环以控制其外表面的褐变和脆性。

公开(公告)号：US4029463A

公开(公告)日：1977-06-14

申请号：US604094

申请日：1975-08-13

Applicant: Leif A. T. Johansson ,  Nils G. Pers

Inventor： Leif A. T. Johansson ,  Nils G. Pers

IPC: A21B1/26 ,  A47J39/00 ,  F27D7/00

CPC classification number: A21B1/26

Abstract: Food products are baked in a forced-convection oven having a baking chamber into and out of which a rack carrying the food products on superposed trays may be rolled. Air is circulated horizontally through the baking chamber by a pair of vertically disposed cross-flow fans. The circulating air enters the baking chamber through alternate ones of two opposed side walls, and the major portion of it leaves the baking chamber through the other one of these side walls while a minor portion leaves the baking chamber through a back wall.

Abstract translation: 食品在具有烘烤室的强制对流烘箱中烘烤，其中可以将叠放托盘上的食品的托架卷起。 空气通过一对垂直布置的横流风扇通过烘烤室水平地循环。 循环空气通过两个相对的侧壁中的交替的空气进入烘烤室，并且其主要部分通过另一个侧壁离开烘烤室，而较小部分通过后壁离开烘烤室。

公开(公告)号：USD263595S

公开(公告)日：1982-03-30

申请号：US46699

申请日：1979-06-08

Applicant: Leif A. T. Johansson ,  Nils G. Pers ,  Staffan Lundgren

Designer： Leif A. T. Johansson ,  Nils G. Pers ,  Staffan Lundgren

公开(公告)号：US4252055A

公开(公告)日：1981-02-24

申请号：US46697

申请日：1979-06-08

Applicant: Leif A. T. Johansson ,  Nils G. Pers ,  Staffan Lundgren

Inventor： Leif A. T. Johansson ,  Nils G. Pers ,  Staffan Lundgren

IPC: A21B1/24 ,  A21B1/48 ,  A47J37/04 ,  F24C15/32 ,  A47J37/06

CPC classification number: A21B1/245 ,  A21B1/48 ,  A47J37/044

Abstract: A baking oven includes a thermally insulated casing that defines a tunnel-chamber through which an endless conveyor belt extends. The reversing elements at the end of the conveyor belt are supported by brackets that can tilt upwardly to shorten the effective length of the oven for shipment and, with the upper portion of the casing removed, to enable slackening of the conveyor belt, thereby facilitating manual raising of the central portion thereof for cleaning structure lying therebelow. The top of the casing serves as a countertop for preparing food, and the tunnel-chamber and conveyor belt lie therebelow thus conserving floor space.

Abstract translation: 烘烤炉包括限定隧道室的绝热外壳，环形输送带通过该通孔室延伸。 传送带端部的反向元件由可向上倾斜的托架支撑，以缩短烤箱的有效长度以进行装运，并且随着外壳的上部被移除，能够使输送带松动，从而便于手动 其中央部分的升高用于下面的清洁结构。 套管顶部用作准备食物的台面，隧道室和输送带位于其下方，从而节省了地板空间。

公开(公告)号：US3954053A

公开(公告)日：1976-05-04

申请号：US573375

申请日：1975-04-30

Applicant: Leif A. T. Johansson ,  Erik I. Peterson

Inventor： Leif A. T. Johansson ,  Erik I. Peterson

IPC: A21B1/44 ,  A21B1/50 ,  A21B3/02 ,  A21B1/00

CPC classification number: A21B3/02 ,  A21B1/44 ,  A21B1/50

Abstract: In a rack oven for heating food products a rotatable rack suspension frame is mounted at the top of the oven chamber. The frame and the door of the oven chamber are vertically displaceable and mechanically connected with each other such that the opening of the door causes the frame to be lowered to place the rack on the floor and the door to be lifted, the lifting being aided by the weight of the rack, while closing of the door causes the door to be lowered and the frame to be lifted to lift the rack from the floor, this lifting being aided by the weight of the door. Swingable wings of the frame are aided by the weight of the rack to ensure a firm holding of the suspended rack in a centered position.

Abstract translation: 在用于加热食品的机架式烤箱中，可旋转的机架悬挂框架安装在烤箱室的顶部。 烤箱室的框架和门可以彼此垂直移动和机械连接，使得门的开口使框架下降，将架子放置在地板上，并且门被提升，提升由辅助 机架的重量在门关闭时导致门被降低，并且框架被提升以将架子从地板提起，该提升由门的重量辅助。 框架的摆动翼由机架的重量辅助，以确保悬挂的货架牢固地保持在中心位置。