Abstract The invention disclosed relates to a plastic coated glass container. A wide variety of glass bottles or jars have a covering of shrinkable plastic material shrunken over a selected region of the glass wall. The covering may be first pre-decorated or pre-printed while in a flat form. The covering may be a seamless tube or a sheet wrapped on a mandrel cylinder to a continuous (endless) sleeve form that is telescopically inserted over the bottle encircling the area to be covered. The lower marginal end thereof will overhang the bottom end of the bottle. The sleeve may be of a pre-foamed or non-foamed plastic material, opaque, pigmented or transparent. It is shrunken in situ by heat so that it fits snugly on the bottle surface and conforms to the container wall about its shoulder, body, heel and its bearing surface at the bottom end of the bottle to provide: (1) a body covering protecting the glass against surface damage, (2) a preprinted label or decoration for the bottle, and (3) a plastic covering on the lower end bearing surface protecting those areas from damage; and further providing sufficient protection for the glass to eliminate carton partitions, dividers or the like currently used.
In a vacuum packaged product, the combination of a wide mouth glass container packaging a product content including a neck portion having a mouth defined by a rim, the neck portion including a raised helical thread means on the glass exterior surface adjacent said rim providing a closure attaching element on the container, a shoulder portion below the closure attaching element, a cylindrical body portion below the shoulder portion, a heel portion at the bottom end of the body portion and a bottom portion including a bearing surface at the opposite end of the container, a shrunken thermoplastic covering layer in encircling fashion on the container that is shrunken thereon from a tubular, sleeve form and is of an axial dimension to extend in shrunken form from a location adjacent the lower extremity of the helical thread means on the neck portion and overlying the exterior glass surface of the shoulder, body, heel and bottom end portions of the glass container in a snug fitting engagement with said exterior glass surface portions, and a closure sealing the product content in the container, said closure having a top panel portion covering the mouth of the container and a circumferential downwardly extending skirt integral with said panel, screw threads on the interiorly facing surface of said skirt engaged on the helical thread means of said neck portion and tightened thereon so that the lower annular edge of the closure skirt bites into the thermoplastic covering layer on the glass shoulder surface adjacent said neck portion, thereby sealing the lower edge of the cap against penetration of foreign matter under the skirt of the closure.
Claim 2
Dependent Claim
272 words
In a vacuum packaged product, the combination of a wide mouth glass container packaging a product content including a neck portion having a mouth defined by a rim, the neck portion including a raised helical thread means on the glass exterior surface adjacent said rim providing a closure attaching element on the container, a shoulder portion below the closure attaching element, a cylindrical body portion below the shoulder portion, a heel portion at the bottom end of the body portion and a bottom portion including a bearing surface at the opposite end of the container, a shrunken thermoplastic covering layer in encircling fashion on the container that is shrunken thereon from a tubular, sleeve form and is of an axial dimension to extend in shrunken form from a location adjacent the lower extremity of the helical thread means on the neck portion and overlying the exterior glass surface of the shoulder, body, heel and bottom end portions of the glass container in a snug fitting engagement with said exterior glass surface portions, and a closure sealing the product content in the container, said closure having a top panel portion covering the mouth of the container and a circumferential downwardly extending skirt integral with said panel, screw threads on the interiorly facing surface of said skirt engaged on the helical thread means of said neck portion and tightened thereon so that the lower annular edge of the closure skirt bites into the thermoplastic covering layer on the glass shoulder surface adjacent said neck portion, thereby sealing the lower edge of the cap against penetration of foreign matter under the skirt of the closure.