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公开(公告)号：US3875370A
公开(公告)日：1975-04-01
申请号：US44899074
申请日：1974-03-07
Applicant: STANDEX INT CORP
Inventor： WILLIAMS LESLIE G
CPC classification number: A47J36/2483 , A47J27/004
Abstract: A heat-retaining hot food service unit which consists of a shaped body of metal, preferably aluminum, that is enclosed in a synthetic resin or plastic jacket which also serves as a base, a food-containing dish and a removable cover. The resin is molded into place around the aluminium body and has a configuration such that the removable food-containing dish nests in the plastic jacket which thus functions as a base for the dish. The removable cover fits over the base and dish, enclosing the edges thereof and defining with the perimeter of the base and the dish, a dead air space for insulating the edge portions of the base and the dish from ambient air. The resinous material has a coefficient of expansion greater than the aluminum body. In one embodiment, there is a resistance heating element embedded in the aluminum and contacts for the heating element extend out of the base for connection to a source of electricity. In another embodiment an elastic expansion joint connects the body and the jacket to provide for variation in expansion of the two while maintaining a sealed connection between them.
Abstract translation: 一种保温热食服务单元，其包括成型体的金属，优选铝，其被封装在也用作基部的合成树脂或塑料外壳中，含食物的盘和可移除的盖。 树脂被模制在铝本体周围的位置，并且具有这样的构造，使得可移除的含有食物的盘子嵌套在塑料外壳中，从而用作该盘的底座。 可移除的盖子装配在基部和盘子上，包围其边缘并且限定基部和盘的周边，用于将基部和盘的边缘部分与环境空气绝缘的死空间。 树脂材料的膨胀系数大于铝体。 在一个实施例中，存在嵌入在铝中的电阻加热元件，并且用于加热元件的触点延伸出基座以连接到电源。 在另一个实施例中，弹性膨胀接头连接主体和护套，以提供两者的膨胀变化，同时保持它们之间的密封连接。
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公开(公告)号：US3908749A
公开(公告)日：1975-09-30
申请号：US44903474
申请日：1974-03-07
Applicant: STANDEX INT CORP
Inventor： WILLIAMS LESLIE G
CPC classification number: A47J39/006 , A47B2031/026 , F25D15/00 , F25D31/005 , F25D2317/0655 , F25D2317/0665 , F25D2400/38 , Y10S165/919
Abstract: A food service system comprising a cart that is movable from a central food preparation location to a remote food service location. The cart is insulated and has a rack for a plurality of individual meal service trays. Each tray carries cold foods in suitable dishes and a heat-retaining food service unit for food which may be either hot when placed therein or may be heated by connecting each unit to a source of electrical energy at the service location. The cart has conduit means which are connectable to a source of chilled air at the service location in order to keep the cold foods cold for a period of time while the food in the units is being heated to a desired serving temperature. If desired, instead of heating the food in the units at the service location, the heat-retaining units may be heated prior to departure from the food preparation location and will maintain the food therein at elevated temperature for a period of time, even while the cart is connected to the chilled air source for keeping the cold foods at a refrigerated temperature.
Abstract translation: 一种食品服务系统，其包括可从中央食物准备位置移动到远程食物服务位置的推车。 推车是绝缘的，并且具有用于多个单独餐膳托盘的机架。 每个托盘将合适的盘子中的冷食品和用于食物的保温食品服务单元放置在其中可能是热的，或者可以通过将每个单元连接到服务位置处的电能源来加热。 推车具有导管装置，其可在服务位置连接到冷冻空气源，以便将冷食品冷却一段时间，同时将单元中的食物加热到期望的服务温度。 如果需要，代替在服务地点的单元中加热食物，保温单元可以在离开食物制备位置之前加热，并且将其中的食物在升高的温度下保持一段时间，即使在 推车连接到冷冻空气源，用于将冷食品保持在冷藏温度。
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公开(公告)号：DE2503629A1
公开(公告)日：1975-09-11
申请号：DE2503629
申请日：1975-01-29
Applicant: STANDEX INT CORP
Inventor： WILLIAMS LESLIE G
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