Sealed Air has been granted a patent for a dunnage conversion machine featuring a drive system with two rollers, each having a distinct curved profile. This system efficiently feeds sheet material from a flat configuration to a non-flat configuration by rotating the rollers, facilitating material conversion. GlobalData’s report on Sealed Air gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Sealed Air, Fiber-reinforced material joining techniques was a key innovation area identified from patents. Sealed Air's grant share as of July 2024 was 61%. Grant share is based on the ratio of number of grants to total number of patents.
Dunnage conversion machine with curved roller drive system
The patent US12064936B2 describes a dunnage conversion machine designed to transform flat sheet material into a non-flat configuration. Central to this machine is a conversion system that includes a drive system featuring two rollers—referred to as the first and second rollers—each with a distinct curved profile. These rollers are configured to engage with each other when no sheet material is present, and they facilitate the feeding of the sheet material through the system when it is inserted between them. The rollers are designed with convex profiles and are offset in such a way that their points of contact do not align with their maximum circumferences, enhancing the machine's operational efficiency. The machine can utilize various types of sheet material, including Kraft paper, which may be supplied in fanfolded stacks or rolls.
Additionally, the patent outlines several features that enhance the functionality of the dunnage conversion machine. It includes a biasing mechanism, such as a compression spring, that maintains contact between the rollers while allowing for movement to accommodate multiple plies of sheet material. The second roller is motor-driven, enabling it to rotate and feed the sheet material through the system, while the first roller can spin freely. The design also allows for the disengagement of the biasing mechanism during the initial feeding of the sheet material. The patent further details the structural arrangement of the rollers and their axles, ensuring that they remain parallel and effectively manage the feeding process. Overall, the invention aims to improve the efficiency and versatility of dunnage production systems.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
