Obviousness

The obviousness analysis under 35 U.S.C. § 103 requires determining whether "the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains." This hypothetical person is presumed to know the relevant art and possess ordinary creativity. Factors for determining the level of ordinary skill in the art include the type of problems encountered, prior art solutions, rapidity of innovations, sophistication of the technology, and educational level of active workers in the field. The motivation to combine prior art references can come from the references themselves, common knowledge in the art, scientific principles, or legal precedent.

For US patent 10822165, which is directed to a "Waterproof induction actuated container," the person having ordinary skill in the art (PHOSITA) would likely be an engineer or designer with experience in consumer products, particularly those involving electronic controls, mechanical actuation, and environmental sealing, such as automated trash cans or other household containers. This individual would be familiar with mechanisms for opening and closing lids, sensor technologies, and methods for protecting electrical and mechanical components from moisture and debris.

The patent identifies several drawbacks of conventional induction containers, including a lack of water resistance, exposure of the transmission shaft to contaminants, and inconvenient battery replacement. The invention aims to overcome these by concealing electrical and mechanical components in waterproof compartments, directly driving the pivot shaft, and providing an accessible power supply unit external to the storage cavity.

Obviousness Combinations

Given the stated problems and the field of the invention, a PHOSITA would have been motivated to combine existing technologies to address the identified shortcomings.

Potential Combination 1: US7750591B2 (Wang) + US8678219B1 (Wang) + General knowledge of waterproofing techniques.

• US7750591B2 (Wang) - "Induction actuated container": This patent discloses an induction actuated container, providing the core functionality of automatic lid opening and closing via a sensor unit and an actuation unit. It explicitly mentions a container body, a storage cavity, a cover panel, a sensor unit, and an actuation unit. However, it, like the "conventional container" described in US10822165, does not emphasize waterproof features for its internal components, and its transmission shaft is exposed.
• US8678219B1 (Wang) - "Lid operation arrangement for container": This patent, also by Wang, focuses on improvements to the lid operation arrangement for containers. While the full text isn't provided here, the title suggests it addresses aspects of lid mechanisms which could include pivot shafts and their connection to actuation units.
• Motivation to Combine: A PHOSITA, faced with the problem of moisture and corrosive gas damaging the electrical and mechanical components in an induction container (as highlighted in the background of US10822165), would be motivated to combine the automated lid functionality of US7750591B2 with waterproofing techniques commonly known in the art for electronic devices. This would involve sealing the electrical and mechanical components in a concealed compartment, as described in US10822165. Furthermore, if US8678219B1 offered a more robust or compact lid operation, there would be a motivation to integrate this into a waterproof design. The concept of "concealed compartments" is a common engineering solution for protecting sensitive components from environmental factors. The specific "side concealed compartments" and the arrangement of the pivot shaft passing through them (as claimed in US10822165, e.g., claim 1) would be an obvious design choice to keep the actuation mechanism isolated from the container's interior, while allowing the lid to pivot. The idea of using a shaft sleeve to conceal the exposed portion of the pivot shaft (claim 17) would also be a straightforward design decision to prevent contamination of the shaft and maintain a clean aesthetic, motivated by the desire to protect components from trash residuals.

Potential Combination 2: US9856080B2 (Simplehuman, LLC) + US9751692B2 (Simplehuman, LLC) + General knowledge of compartmentalization and external access for power.

• US9856080B2 (Simplehuman, LLC) - "Containers with multiple sensors": This patent details containers with advanced sensing capabilities. While not directly addressing waterproofing, it demonstrates the sophistication of sensor-driven containers.
• US9751692B2 (Simplehuman, LLC) - "Dual sensing receptacles": Similar to the above, this patent shows further advancements in sensor technology for receptacles.
• Motivation to Combine: These Simplehuman patents demonstrate the ongoing development and market demand for sophisticated, sensor-actuated containers. A PHOSITA looking to enhance such a container by making it waterproof and user-friendly (e.g., for battery replacement) would be motivated to apply standard engineering practices. The "side concealed compartments" (claim 1) and the battery compartment accessible from the rear of the control housing (claim 7) represent common design solutions for isolating sensitive parts and improving serviceability. The problem of battery contamination and difficult replacement in conventional designs (as described in US10822165) would explicitly motivate a PHOSITA to re-locate and seal the power supply unit, making it externally accessible without detaching the entire control housing.

Reasoning for Obviousness

The various elements claimed in US10822165, such as concealed compartments for electrical/mechanical components (claim 1), a servo motor and gear transmission (claim 2), a gear worm sector (claim 3), a decelerating gear unit (claim 4), a pivot shaft with a non-circular cross-section received in a shaft sleeve (claims 17, 18), a resilient element for assisting lid movement (claim 9), and a rear-accessible battery compartment (claim 7), all represent known solutions to common engineering problems in the design of automated devices.

• Waterproofing and Concealment: Protecting electrical and mechanical components from moisture, corrosive gases, and debris is a fundamental design consideration for any product operating in a potentially harsh environment, such as a trash container. Sealing components in concealed compartments is a standard engineering practice. The specific arrangement of "side concealed compartments" in the control housing (claim 1) would be an obvious choice to maintain the overall form factor of the container while providing discrete, protected areas for the operating mechanisms.
• Actuation Mechanisms: Servo motors, gear transmission units, and pivot shafts (claims 2, 3) are well-known components for controlled rotational movement. The use of a decelerating gear unit to achieve a "hydraulic manner" of lid movement (claim 4) would be an obvious optimization to provide smooth and controlled operation, a desirable characteristic in consumer products.
• Pivot Shaft Design: The use of a non-circular cross-section for the pivot shaft and a corresponding shaft sleeve (claims 17, 18) to ensure rotational coupling is a basic mechanical engineering principle. Concealing the pivot shaft within a shaft sleeve and shaft housing (claim 17) directly addresses the problem of exposure to contaminants.
• Resilient Element: Incorporating a spring or similar resilient element (claim 9) to assist in opening the lid or offset its weight is a common way to reduce motor load and ensure smooth operation, widely used in hinged mechanisms.
• Power Supply Unit: Making a battery compartment externally accessible (claim 7) without requiring disassembly of the main unit is a standard design for user convenience and maintainability. Locating it at the rear and ensuring it's not communicated with the storage cavity directly addresses the stated problems of contamination and difficult battery replacement.

A PHOSITA would have been motivated to combine these elements from the prior art references and general engineering knowledge to create a more robust, durable, and user-friendly induction container. The motivation would stem from the desire to overcome the known drawbacks of conventional induction containers, specifically the lack of waterproofing and inconvenient maintenance, using readily available and well-understood technological solutions. No "teaching away" from these combinations is evident in the cited prior art.