# US 10,368,668 B2 · Cup lid manufacturing process > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,368,668 B2 - Document ID: US10368668B2 - Status: Granted - Kind: B2 - Application number: 14/522,683 - Filed: 2014-10-24 - Published: 2015-04-02 - Granted: 2019-08-06 - Earliest claimed: 2009-03-24 - Assignees: Peerless Machine & Tool Corporation - Applicants: Peerless Machine & Tool Corporation - Inventors: Lonnie E. Hyder; Michael E. Tibbets - Web page: https://patentgrep.com/patent/US10368668B2 ## CPC - A47G 19/2272: {from drinking glasses or cups comprising lids or covers} - B65D 43/0208: {on both the inside and the outside of the mouth of the container (B65D43/0206 takes precedence)} - B65D 77/2016: {the cover being maintained by projections or recesses on the container} - B31B 50/592: {using punches or dies} - B65D 2543/00092: circular - B65D 2543/00268: Paper - B65D 2543/00351: Dome-like - B65D 2543/00416: circular - B65D 2543/00509: Cup - B65D 2543/00537: on the outside, or a part turned to the outside of the mouth of the container - B65D 2543/00555: on both the inside and the outside - B65D 2543/00638: Rolled edge - B65D 2543/00685: Totality - B65D 2543/00731: Groove or hollow bead - B65D 2543/00796: Totality - A47G: HOUSEHOLD OR TABLE EQUIPMENT (book-ends A47B5/00; knives B26B) - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - B31B: MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making wound articles, e.g. wound tubes, B31C; combined making and filling B65B) ## Abstract A substantially crimpless and monolithic paperboard container lid and method of making same is provided. The lid comprises a single contiguous molded paperboard body configured to conformingly couple to a top periphery of a container for covering the container's opening. The body includes a sealing ring located adjacent the body's periphery. The sealing ring includes a sealing channel composed of a radiused cross-section that extends to a tangent ring terminating with a tab ring. The radiused cross-section and tangent ring assist providing a snug fit between the lid and the container. Despite being made from paperboard, the lid does not include one or more substantial crimps in the sealing ring. Having no substantial crimps, the lid fits onto the container and prevents fluid from leaking between the container's periphery and the lid. ## Claims ### Claim 1 A substantially crimpless and monolithic paperboard container lid comprising: a single contiguous molded paperboard body of a single paperboard blank conformingly attachable to a top periphery of a container for covering the container's opening; wherein the paperboard body comprises a sealing ring located adjacent the body's periphery; wherein the sealing ring includes a sealing channel composed of a radiused cross-section; wherein the radiused cross-section extends to a tangent ring terminating with a tab ring; wherein the radiused cross-section and tangent ring are configured to at least partially wrap around the top periphery of the container; wherein the radiused cross-section has a radius greater than 180 degrees to assist providing a snug friction fit between the paperboard container lid and the container; wherein the paperboard body does not include one or more substantial crimps in the sealing ring; wherein having no substantial crimps on an inside surface of the sealing ring, the paperboard container lid selectively fits onto the container and prevents fluid from leaking between the container's periphery and the paperboard lid; and wherein the tab ring flares outward from the tangent ring providing a lip for grasping the paperboard container lid. ### Claim 2 (depends on 1) The substantially crimpless and monolithic paperboard container lid of claim 1, wherein the lid's size, along with the sealing channel accommodates the circumference of the bottom of the container to assist in allowing the lid to serve as a stackable surface for additional containers. ### Claim 3 (depends on 1) The substantially crimpless and monolithic paperboard container lid of claim 1, further comprising an emboss formed on a surface of the lid assists in adding strength to the lid. ### Claim 4 (depends on 1) The substantially crimpless and monolithic paperboard container lid of claim 1, wherein the shape of the paperboard container lid simulates the shape of a conventional plastic lid. ### Claim 5 (depends on 1) The substantially crimpless and monolithic paperboard container lid of claim 1, wherein a poly coating is applied to one surface of the paperboard container lid. ### Claim 6 (depends on 5) The substantially crimpless and monolithic paperboard container lid of claim 5, wherein a clay coating is applied to a surface of the paperboard lid opposite the surface with the poly coating to accommodate printing of indicia on the lid. ### Claim 7 (depends on 1) The substantially crimpless and monolithic paperboard container lid of claim 1, wherein the paperboard thickness is from about 0.012 inch to about 0.030 inch. ### Claim 8 (depends on 1) The substantially crimpless and monolithic paperboard container lid of claim 1, wherein the shape of the paperboard can be modified to accommodate the shape of the sealing ring of the container. ### Claim 9 (depends on 1) The substantially crimpless and monolithic paperboard container lid of claim 1, wherein the radiused cross-section of the sealing ring can be either round, square, rectangular, oval, or oblong and configured to conformingly fit the periphery of the container. ### Claim 10 A substantially crimpless and monolithic paperboard container lid comprising: a single contiguous molded paperboard body of paperboard blank conformingly attachable to a top periphery of a container for covering the container's opening; wherein the paperboard body comprises a sealing ring located adjacent the body's periphery; wherein the sealing ring includes a sealing channel composed of a radiused cross-section; wherein the radiused cross-section extends to a tangent ring terminating with a tab ring; wherein the radiused cross-section and tangent ring are configured to at least partially wrap around the top periphery of the container; wherein the radiused cross-section has a radius greater than 180 degrees to assist providing a snug friction fit between the paperboard container lid and the container; wherein the paperboard body does not include one or more substantial crimps in the sealing ring; wherein having no substantial crimps, the paperboard container lid selectively fits onto the container and prevents fluid from leaking between the container's periphery and the paperboard lid; and wherein the tab ring flares outward from the tangent ring providing a lip for grasping the paperboard container lid.