Abstract: A leak preventing carton and blank for ice cream and the like in which the first-in and flap substantially closes the opening of the carton but leaves a gap along the top edge of the first-in flap which gap is prevented from becoming a leaking area by a boss such as a deboss which may or may not be used in conjunction with an emboss. The boss or bosses cooperate to seal the area of the gap from leakage. In addition, the carton is designed to provide for very tight corners in which excess material is provided in the blank for closing tightly the corners when the carton is erected for receiving ice cream.

Abstract: A carton for packaging ice cream and the like comprising a receptacle including operably connected front, bottom and rear panels. A cover having a cover panel and a closure flap is hingedly connected to the receptacle for sealing the carton. The front, bottom, rear, and cover panels each have left and right end flaps operably connected to their left and right edges. The end flaps are dimensioned such that upon folding they form substantially sealed left and right carton ends. In the preferred embodiment, a breakaway tab is detachably formed in the cover panel end flap. The front surface of the breakaway tab is secured to the rear panel end flap so as to minimize any gaps between the end flaps forming the carton ends. Upon initial opening of the carton, the breakaway tab is severed from the cover panel end flap permitting the consumer to readily gain access to the contents of the carton.

Abstract: A novel button cell having a corrosion resistant can and being double sealable is described. The cell is basically made of four components, a conductive metal can, a conductive thermoplastic layer in the can, a conductive metal cover and a dielectric thermoplastic gasket molded around the cover. The conductive thermoplastic layer is disposed on the inner surfaces of the can so as to extend over at least all of the inner surface of the bottom of the can. The conductive metal cover has a sidewall which includes a U-shape configuration, and the dielectric thermoplastic gasket is insert molded around the sidewall of the cover and a part of the top of the cover so as to extend over all surfaces of the cover except a center portion, inner and outer surfaces, of the top of the cover. The dielectric thermoplastic gasket has a tapered projection located below the U-shape configuration.