 Adhesive application of two-part container |
| I claim: 1. A method of bonding a pair of container sections end to end wherein each section has a ... |
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| Process for preparation of metal vessels |
| It is therefore a primary object of the present invention to provide a process in which in ... |
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| Tubelet panel and method of and apparatus for manufacture thereof |
| What is claimed is: 1. Apparatus for producing a panel array of parallel tubes comprising; first ... |
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| Electrical heating device |
| Referring to FIGS. 1-6 there is shown an infrared imaging target, designed to produce a thermal ... |
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| Protective method and circuit arrangement for appliance incorporating sheathed heating element |
| Briefly stated and in accordance with one aspect of the invention, there is provided a protective ... |
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| Cartridge heater having resilient retaining means |
| Referring now to the drawing, FIG. 1 illustrates a fragmentary portion of a plastic molding ... |
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| Electric heater cold pin insulation |
| It is a general object of this invention to improve the reliability of electric resistance heaters. ... |
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| Self-regulating electric heating element for heaters shaped as cartridges or test tubes |
| I claim: 1. An electric resistance heating element for heaters shaped as cartridges or test tubes, ... |
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| Heat exchange apparatus |
| Claimed are: 1. A transportable integral heat exchanger tube assembly for the interior of a ... |
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| Radiant energy heating system with power exhaust and excess air inlet |
| The present invention contemplates the combination of a burner unit having a combustion chamber ... |
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Food serving system
| Details |
Inventors: Mack, Anthony C.; Phillips, Robert A.; Shumrak, George K.;
Assignee: Sweetheart Plastics, Inc. (Wilmington, MA)
Primary Examiner: Reynolds; B. A.
Assistant Examiner: Paschall; M.
Attorney, Agent or Firm: Wolf, Greenfield & Sacks
An energy saving food serving system for rethermalization of the food and for delivery prepared meals to locations remote from the place of preparation, such as to patients to hospitals and nursing homes. The system includes a mobile cart having its own rechargeable power pack that is utilized to propel the cart. The cart has separate bays, each having a tier of racks for carrying individual food serving trays. Each tray has one or more thermally isolated heat transfer devices which are selectably energized when the tray is in place on a rack in the cart. Preferably, each tray has a pair of heaters referred to herein as plate and bowl heaters and adapted to be operated by control means in either a continuous mode of operation or a rethermalization mode of operation. In the rethermalization mode of operation to manually selected heaters associated with trays in all bays are operated for a predetermined period of time of, for example, 25 minutes, to rethermalize the food from a frozen or at least cold state to a temperature on the order of 170.degree. F.-180.degree. F. Thereafter, the heaters in predetermined bays are operated cyclically to hold the food at the desired temperature range. During the initial predetermined period of the rethermalization mode the heaters may be operated on a continuous "on" basis or may be operated cyclically but preferably at a higher duty cycle and in the maintaining state which follows the predetermined period. |
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DETAILED DESCRIPTION U.
S.
Pat.
No.
3,924,100 shows a typical cart construction, the entire construction of which is not discussed in detail herein.
The preferred cart construction of this invention has three days identified hereinafter as bays #1, #2, and #3, each having racks for supporting a plurality of trays in each bay.
FIG.
1 herein is a fragmentary view of a portion of the cart showing two of the bays and, disposed therebetween, a control panel 10.
In addition, there is another control panel not specifically shown in the drawings but similar to the control panels shown in FIG.
2 of U.
S.
Pat.
No.
3,924,100 and including, for example, an on-off switch, an operate/load switch, a mode switch and associated indicators all discussed hereinafter with reference to FIG.
2.
The control panel 10 supports three columns of push-to-light switches.
Each horizontal row which comprises the three switches represent the controls for a single tray associated therewith.
The first vertical column of switches 12 are for indicating that the corresponding tray is in place on the rack associated with that position and also serves as an "off" or "program clear" for that station.
When the tray is in place, the indicator 12 is illuminated and when the tray is not completely in place, the indicator is not illuminated.
The adjacent two vertical columns comprise, respectively, bowl switches 14, and plate switches 16.
These switches or buttons 14 and 16 are for selectively operating the heat transfer devices or heaters which are independently operated and which are provided in each tray.
In an alternate embodiment a single heater may be used in which case only one of the switches 14 and 16 may be necessary.
The push-to-light switches 14 and 16 may be of conventional design.
FIG.
3 shows one typical embodiment including a relay 14A in series with the switch 14.
A contact 14B of the relay is coupled across the switch 14 so that upon momentary operation of the switch 14 the relay 14A energizes and is latched in that position by way of the contact 14B
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Heat Accumulators 
