Waste disposal devices including cartridge of flexible tubing

What is this patent about?

’099 is related to the field of sanitary waste disposal systems, specifically those utilizing continuous lengths of flexible tubing to encapsulate individual waste items. The technology is primarily directed toward the hygienic management of highly malodorous or hazardous materials, such as soiled diapers and medical waste, within a containerized environment.

The underlying idea behind ’099 is the creation of a series of airtight, individually sealed waste packets through the mechanical generation of relative rotation between a tubing cartridge and a retention mechanism. By holding a waste package stationary while rotating the tubing source—or vice versa—the system creates a physical twist in the film above the waste, effectively locking in odors and contaminants without requiring the user to manually handle the soiled tubing.

The claims of ’099 focus on a rotation mechanism that translates a simple user action, such as closing a lid or depressing a foot pedal, into the precise rotational force needed to twist the tubing. This mechanism is coupled with a retention structure, often featuring resilient springs or tongues, that grips the waste package to ensure it remains stationary while the twist is being formed above it.

In practice, the invention operates by utilizing a gear train or pulley system to automate the encapsulation process. When a user closes the lid, a rack gear or similar drive component engages a series of gears that rotate the cartridge or the internal retention frame. This eliminates the common problem of users forgetting to manually seal the device, ensuring that every insertion is followed by a sanitary seal. The system further differentiates itself by incorporating a compacting mechanism that winds the chain of encapsulated packets onto a central spindle, significantly increasing the storage capacity of the container.

To improve user convenience, the invention introduces a cartridge design that avoids the need for manual knot-tying. The tubing is pre-sealed at the factory with a clip or heat seal, and the cartridge itself is designed with score lines that allow it to be folded and snapped together to seal the final end of the tubing. This approach, combined with a removable hamper or pail, allows for the disposal of a full load of waste as a single, compressed, and odorless roll, representing a significant advancement over traditional diaper pails.