Elasticized gusseted dish cover, method of making same and article of dispensing
AssigneeFirst Brands Corporation
InventorsElizabeth A. Forberg, Ewald A. Kamp, deceased
Life of this patent
Estimating the term…
Abstract
A gusseted dish cover formed from a flexible sheet material and an elastomeric matrerial having a constricted opening and a cross-section of a generally M-shaped gusset. A novel storage and dispensing means for such gusseted dish covers is also disclosed wherein the dish covers are placed on a center support member having the constricted opening and the elastomeric material positioned off the end of the support member.
Claims35
A gusseted dish cover comprising a rectangular-shaped blank of flexible sheet material having lateral edges and top and bottom edges and affixed to top and bottom edges thereof an elastic material affixed to said flexible sheet material under tension to provide elongation of the elastic-material over the length of the elastic material, said rectangular-shaped blank of flexible sheet material with affixed elastic material having said top and bottom edges substantially aligned to form a contracted opening having a corrugated surface, means sealing said lateral edges and effecting the center of said sheet material to form a gusset generally parallel to the aligned top and bottom edges to form in cross-section a gusset across said dish cover.
An article of manufacture comprising an integrally formed gusseted dish cover formed from a flexible sheet material having a top and a bottom edge and lateral edges with elastic material in an elongated state affixed to the top edge and the bottom edge which are folded substantially aligned to form a contracted opening, means sealing said lateral edges and effecting the center of said flexible sheet material to form a gusset generally parallel to the top and bottom edges to form in cross-section a gusset, said elastic material which when not under tension forms a contracted opening having a corrugated surface where the elastic material is affixed to the flexible sheet material, said gusseted dish cover being spirally wound on a center support means having an end with the contracted opening of said gusseted dish cover being placed in a position off the end of the center support means whereby said elastic material is under substantially no tension.
The method for forming a dish cover according to the invention comprising:
- (i) providing a generally rectangular sheet of flexible film having a top edge, a bottom edge and two lateral edges;
- (ii) affixing under an elongated state an elastic material to the top edge and bottom edge of the generally rectangular sheet of flexible film;
- (iii) folding the sheet downward along a first line extending between the lateral edges and medial to and generally parallel to the bottom edge and top edge;
- (iv) forming a gusseted dish cover by folding downwardly the top and bottom edges and forming in cross-section a generally M-shaped gusset;
- and
- (v) sealing each lateral edge where it adjoins itself.
Dependencies are inferred from the claim text.