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Sweetheart Plastics, Inc. Patents
Assignee:
Sweetheart Plastics, Inc.
Address:
Wilmington, MA
No. of patents:
27
Patents:




Patent Number Title Of Patent Date Issued
D276015 Combined eutectic pack and food tray cover October 23, 1984
D276014 Food tray cover October 23, 1984
D264686 Packaging cup June 1, 1982
D263684 Container for food or the like April 6, 1982
D248371 Beverage carrier July 4, 1978
D246955 Disposable plastic lid January 17, 1978
D246945 Coffee service tray January 17, 1978
D243362 Food tray temperature maintenance station February 8, 1977
4386188 Thermoformable polymer blend composition May 31, 1983
A thermoformable polymer blend composition comprising at least 50% by weight of an olefin polymer such as polyethylene or polypropylene, from 10 to 48% by weight of a styrene polymer and from 2 to 40% by weight of a thermoplastic styrenic block copolymer rubber, preferably a styrene-
4386187 Thermoformable polymer blend composition comprising styrene polymer, olefin polymer and block co May 31, 1983
A thermoformable polymer blend composition comprising at least 50% by weight of an olefin polymer such as polyethylene or polypropylene, from 10 to 48% by weight of a styrene polymer and from 2 to 40% by weight of a thermoplastic styrenic block copolymer rubber, preferably a styrene-
4349571 Bulk cone container September 14, 1982
A bulk package for stacked and nested ice cream cones is provided for transporting and dispensing the cones in which a plurality of folded foam sandwich structures each defining a row of cells holding one cone stack to a cell are inserted into an outer container to form a matrix of cells
4316078 Food serving system February 16, 1982
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 i
4313358 Dynamically balanced trim press February 2, 1982
A trim press for severing articles differentially pressure formed in a thermoplastic sheet comprising a pair of dynamically balanced trim die members mounted for movement toward and away from each other between spaced apart positions and closed positions engaging opposite sides of the
4298133 Integral tray and cover with snap lock November 3, 1981
A foam plastic disposable tray and cover typically used for take-out dinners at fast food establishments. The tray and cover are joined by an integral hinge along one side edge. At a location remote from the hinge, tabs and undercut tab seats are formed in the tray and cover respectively
4294371 Sundae dish October 13, 1981
A sundae dish having a bottom dish and a cover that are identical. The rim structure of each dish is part male and part female, and each is provided with a locking element. The two parts of the container are self aligning by virtue of their rim structures so that when one is inverted on
4275815 Lid June 30, 1981
A disposable plastic lid having a generally round closure wall and a depending skirt, with a stacking facility formed in the closure wall comprising a circular recess concentric with the wall and which recess has downwardly extending feet, substantially equal in circumferential extent
4183446 Food container with integral dish and cover January 15, 1980
A foamed plastic food container having a dish and cover interconnected by a hinge at one end and a latching means at the other end. The hinge is biased towards the open position. The latching means comprises a male flange-like member raised above the rim of the dish and a female member o
4154345 Food product containers and the method and apparatus for manufacturing same May 15, 1979
A thermoplastic container is provided with a venting structure to enhance the delivery therefrom of food products, including toppings and the like, in an en mass or molded form from the container. A deep drawn rupturable tip is formed in a concave bottom web of the container which can be
4138504 Food service method February 6, 1979
A food serving system for delivering prepared meals to locations remote from the point of preparation, such as to patients in hospitals and nursing homes, which includes a mobile cart having its own low voltage rechargeable power pack that may be utilized to make the cart self powere
4127189 Plastic food container November 28, 1978
In a foamed plastic food container having an integral dish and cover, triangular pedestals are formed in the bottom wall of the dish. The height of the pedestals is equal to the stacking height of the container to prevent compacting during storage. Channels between the pedestals allow
4098403 Beverage carrier July 4, 1978
A cup carrier having a band made of resilient plastic material and having a plurality of cup engaging sections, each of which is intended to surround more than half the circumference of a cup. A web for supporting the cups from the bottoms is suspended beneath the band by a plurality of
4093041 Food serving system June 6, 1978
A food serving system for delivering prepared meals to locations remote from the point of preparation which includes a mobile cart having its own low voltage rechargeable power pack that may be utilized to make the cart self powered. The cart has a tier of shelves for carrying removable,
4076123 Disposable plastic lid February 28, 1978
A thin wall disposable plastic lid designed to stack with other substantially identical lids without compacting having a circular closure wall and a surrounding downwardly extending skirt. A pair of downwardly extending, closely spaced, annular ribs are formed in the circular closure
4068115 Food serving tray January 10, 1978
A food serving system for delivering prepared meals to locations remote from the point of preparation, such as to patients in hospitals and nursing homes, which includes a mobile cart having its own low voltage rechargeable power pack that may be utilized to make the cart self powere
4041277 Portable tray warming unit August 9, 1977
A portable tray warming unit comprising a casing having at least one tray supporting rack, trays to be supported and received upon said rack, and electrical terminal means for interconnecting the tray warming unit with an external electrical source of energy. The casing of this tray warm
3942896 Measuring magnifier with special reticle March 9, 1976
A measuring device to determine whether the width of a printed bar falls within prescribed tolerances has a sleeve with a magnifying lens at one end and a reticle at the other end. The reticle is inscribed with indicia for providing an immediate visual indication of the magnitude of widt
3931890 Stackable lid January 13, 1976
A disposable plastic lid for a container includes a generally round closure wall and a depending peripheral skirt for engagement with the container. The closure wall includes an improved stacking facility by which a plurality of such container lids may be stacked one on top of the other

 
 
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