Expandable Pizza Container

Patent No. US11738935 (titled "Expandable Pizza Container") was filed by Pizza Pack Llc on Apr 22, 2022.

What is this patent about?

’935 is related to the field of food storage, specifically addressing the problem of storing leftover pizza. Existing containers are often square or round, which is inefficient for triangular pizza slices, leading to wasted space and the need for multiple containers. The patent aims to provide a dedicated solution tailored to the shape and storage requirements of pizza.

The underlying idea behind ’935 is to create a collapsible, triangular container that expands vertically to accommodate multiple pizza slices. This is achieved using an accordion-style folding mechanism in the container's walls, allowing it to compress when fewer slices are stored and expand as needed. The design also incorporates a vented lid to maintain freshness and prevent sogginess during storage.

The claims of ’935 focus on an expandable pizza storage container comprising a flexible, generally triangular container body having three sides joined at rounded corners, and a planar bottom face extending perpendicularly from a bottom edge of said sides, wherein said sides are pleat folded so as to form an upper pleat and a lower pleat that are concentrically nested; a rigid seal ring bonded to a top edge of said sides; a rigid, generally triangular, planar lid with a gasket groove formed about a periphery edge of a bottom side of said lid; a compressible, removeable gasket frictionally retained within said gasket groove; a microwave safe triangular tray with a peripheral lip formed there about a tray top face and a finger tab extending from said triangular tray; wherein said lid resides upon said container body with said gasket in contact with said seal ring, and said tray resides within said container body.

In practice, the container expands or collapses based on the number of pizza slices stored. Individual slices are placed on microwave-safe, triangular trays within the container. These trays have a lip to contain oil and grease and raised bars on the bottom to prevent sticking. The lid features a compressible gasket to create a tight seal and a vent to release pressure, ensuring the pizza remains fresh.

The key differentiation from prior art lies in the combination of the triangular shape, the expandable accordion design, and the inclusion of individual serving trays. This integrated approach provides a space-efficient, convenient solution for storing, reheating, and serving pizza, addressing the limitations of generic, non-pizza-specific containers. The vented lid and compressible gasket further enhance the design by preserving the pizza's quality during storage.

How does this patent fit in bigger picture?

Technical landscape at the time

In the early 2020s when '935 was filed, food storage solutions at a time when X was typically implemented using Y, when systems commonly relied on Z rather than A, and when hardware or software constraints made B non-trivial.

Novelty and Inventive Step

On 02/23/2023, claims 1-6 were rejected under 35 U.S.C. 112(b) as being indefinite for failing to particularly point out and distinctly claim the subject matter which the inventor or a joint inventor regards as the invention. Claims 1-5 were objected to because of informalities. The examiner indicated that claims 1-6 would be allowable if rewritten or amended to overcome the rejections and objections.

Claims

The patent has 6 claims, with claim 1 being independent. Independent claim 1 is directed to an expandable pizza storage container. The dependent claims 2-6 add further details and features to the pizza storage container described in claim 1.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Flexible, generally triangular container body
(Claim 1)
“Looking at FIGS. 1 and 2 the expandable pizza container 2 (“container”) can be seen in its expanded configuration with and without the lid 4 on the container body 6. The body 6 has a generally triangular shape with rounded corners 8. It is made of a flexible polymer and its three sides 16 are pleat folded in the style of an accordion so as to form an upper pleat 10 and a lower pleat 12.”A container body that is triangular with rounded corners, made of a flexible material, and capable of expanding or collapsing.
Gasket groove
(Claim 1)
“The lid 4 is generally triangular in shape and has a gasket groove 24 formed about its periphery on its bottom side. The gasket groove 24 is designed to frictionally retain a compressible, removeable gasket 26.”A channel or indentation formed around the edge of the lid's bottom side, designed to hold a gasket.
Microwave safe triangular tray
(Claim 1)
“The container 2 also has a microwave safe triangular tray 28 with a peripheral lip 30 formed there about a tray top face and a finger tab 32 extending from said triangular tray 28. The tray 28 is designed to be used as a separation tray for pizza slices within the container 2, as well as a microwaveable serving tray.”A triangular tray that is safe for use in a microwave oven.
Pleat folded
(Claim 1)
“The body 6 has a generally triangular shape with rounded corners 8. It is made of a flexible polymer and its three sides 16 are pleat folded in the style of an accordion so as to form an upper pleat 10 and a lower pleat 12. Although in alternate embodiments, there may be more or less pleats. When the container body 6 is collapsed (FIGS. 9 and 10) these two pleats are concentrically nested in the same plane.”The sides of the container body are folded in a manner similar to an accordion, creating pleats that allow for expansion and collapse.
Rigid seal ring
(Claim 1)
“The top peripheral edge of the container body 6 has a rigid polymer seal ring 17 bonded to the top of the flexible sides 16. In the seal ring's cross section view (FIG. 7) it can be seen that the seal ring 17 has a bulbous shape 18 with a flat top 20 and a necked down bottom 22.”A stiff ring attached to the top edge of the container body's sides, providing a sealing surface.

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US11738935

PIZZA PACK LLC
Application Number
US17727683
Filing Date
Apr 22, 2022
Status
Granted
Expiry Date
Apr 22, 2042
External Links
Slate, USPTO, Google Patents