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1. 发明授权

US6092922A Food blender with a balanced blade 有权
标题翻译：食品搅拌机与平衡叶片
公开(公告)号：US6092922A
公开(公告)日：2000-07-25
申请号：US342427
申请日：1999-06-29
申请人： David J. Kett , Barry Chaffin, deceased , by Donald L. Bleich, legal representative
发明人： David J. Kett , Barry Chaffin, deceased , by Donald L. Bleich, legal representative
IPC分类号： A47J43/07 , A47J43/046
CPC分类号： A47J43/0722
摘要： A blade is provided for use in a blender wherein the blade is to rotate about a vertical axis of rotation. The blade is formed with a central hub portion defining a horizontal plane, and in a preferred arrangement, has four tines extending outwardly from said hub portion with each tine angularly spaced at 90.degree. to two adjacent tines to form two opposed pairs of tines, however, with the tines being arranged asymmetrical to one another. In order to reduce vibration and torque occasioned by the asymmetrical arrangement of the tines, each tine in an opposed pair is formed to be balanced to the other tine with respect to a first product of its mass times a distance of its center of mass from the center of rotation and with respect to a further product of its mass times a distance of its center of mass from the axis of rotation and times a distance of its center of mass from the horizontal plane. Preferably the magnitude of the products for each tine in an opposed pair should be within 1% of the magnitude of the products for the other tine in the pair.
摘要翻译：提供用于混合器中的刀片，其中刀片围绕垂直旋转轴线旋转。叶片形成有限定水平面的中心毂部分，并且在优选的布置中，具有从所述轮毂部分向外延伸的四个齿，每个叉齿在90度与两个相邻齿倾斜间隔，以形成两个相对的齿对，但是，齿相互排列不对称。为了减少尖齿的不对称布置引起的振动和扭矩，相对的一对中的每个齿形成为相对于其质量乘以其质心距离的第一乘积而与另一个齿平衡旋转中心，并且相对于其质量乘以其质心距离旋转轴的距离的乘积，并且其质心距水平面的距离再次产生。优选地，相对对中的每个齿的产品的大小应该在对中的另一个齿的产品的幅度的1％内。

2. 发明授权

US4865010A Exhaust duct cooling system for built-in gas oven 失效
标题翻译：内置燃气烤箱排气管道冷却系统
公开(公告)号：US4865010A
公开(公告)日：1989-09-12
申请号：US292545
申请日：1988-12-30
申请人： David J. Kett
发明人： David J. Kett
IPC分类号： F24C15/00 , F24C15/20
CPC分类号： F24C15/2007 , F24C15/006
摘要： An exhaust duct cooling system is provided for a built-in gas oven wherein cool air is drawn into the oven enclosure and through an oven controls area to cool that area, and then the cool air is directed into a cool air duct which is positioned between the oven cooking cavity and an oven exhaust duct to thermally isolate the controls area while cooling the oven exhaust. The cool air duct has a first, lower outlet below the oven controls, and a second, upper outlet adjacent to an outlet of the oven exhaust duct where cool air and oven exhaust are mixed in a chamber prior to exiting the oven cabinet. Thus, the oven exhaust is tempered prior to being exhausted from the front of the oven.
摘要翻译：为内置的气体烘箱提供排气管道冷却系统，其中冷空气被吸入烘箱外壳并通过烤箱控制区域冷却该区域，然后冷空气被引导到位于烤箱烹饪腔和烤箱排气管，以在冷却炉排气时热控制区域。冷空气管道具有位于烤箱控制器下方的第一下部出口，以及邻近烤箱排气管道出口的第二上部出口，其中冷却空气和烘箱排出物在离开烤箱柜之前在室中混合。因此，烤箱排气在从烤箱前部排出之前被回火。

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