Heat retaining food container
OwnerKendrick A. Johnsoninventor
Life of this patent
Estimating the term…
Abstract
An improved heat retaining foodservice system including a heat retaining food cover (10), food container (310) and underbase (210), each including a heat storage system comprised of a sealed chamber therewithin, said chamber containing a layer of non-metallic heat storing material, such as micro crystalline wax enclosed by a layer of film for keeping food warmer for longer periods of time. Preferably, the food cover, container and underbase are each constructed of high-temperature stable polymeric material which is transparent to microwave radiation to facilitate heating of the heat storing material by use of a microwave oven, as well as by a conventional convection or radiant heat type oven.
Claims15
A heat retaining food container comprising:
- (a) a wall means defining a container for food, said wall means being transparent to microwave energy, said wall means defining a first sealed chamber;
- (b) at least one sealed second chamber within said first chamber;
- said second chamber being at least partially defined by flexible thin wall film, said wall means completely enclosing said second chamber;
- and
- (c) a heat storing mass contained within said second chamber, said mass comprising a fusible material which may be heated using microwave radiation, said material having a fusion temperature of at least 175.degree. F. and less than the degradation temperature of said wall means;
- (d) said wall means and said heat storing mass being comprised of microwaveable materials, whereby said food container may be heated and placed adjacent to food for maintaining said food at an elevated temperature.
Dependencies are inferred from the claim text.