Sump Alarm, Inc. recently secured a major technological breakthrough with the issuance of U.S. Patent No. 12723585. This patent, titled ‘Pump monitor with metal detector alarm controller’, introduces a contactless control system for pump monitoring devices. By utilizing this technology, users can easily test and silence alarms without ever needing to penetrate the weather-resistant outer enclosure.
Advanced Detection for Pump Monitoring
The innovation focuses on a printed-circuit board within the enclosure that carries a planar spiral transmit coil on one face and at least one planar receive coil on the opposite face. These coils are arranged to form a coupled resonant metal detector. Developed by inventors Scott J. Steiger and Danny J. Simpson, the design operates effectively through the enclosure wall, utilizing ferrite material to increase the magnetic field density. When a metallic object is placed adjacent to the exterior wall, it produces a proximity signal that toggles the system between test and silence modes. Two spatially separated receive coils can be wired in opposition to reject common-mode noise. This seamless approach completely eliminates the need for mechanical switches, enclosure penetrations, and sealing gaskets, which significantly reduces installation costs and improves overall reliability for grinder pumps, septic pumps, and lift stations operating in harsh outdoor environments.
Patent of the Month Recognition
Because of its highly practical approach to solving persistent industry problems, this invention won the Patent of the Month for the Missouri state for the month of October 2026 granted by Swanson Reed. Traditional pump monitors often fail in the field due to water intrusion through worn mechanical buttons or degraded rubber seals. By shifting to an entirely contactless interface, Sump Alarm, Inc. has extended the durability and lifespan of pump monitoring equipment. Removing structural vulnerabilities from the enclosure design makes this patent a standout technical achievement in the engineering and wastewater management sectors.
R&D Tax Credit Eligibility in the USA
The practical applications and the rigorous development process behind this patent strongly align with the requirements for the Research and Development (R&D) tax credit in the USA. To bring this contactless control system from a concept to a functional product, the engineering team likely faced multiple technical uncertainties regarding magnetic field density optimization, signal transmission through thick weatherproof plastics, and the effective rejection of environmental signal noise. The iterative prototyping, coil tuning, and functional testing required to perfect this resonant metal detector constitute qualified research activities under Section 41 of the Internal Revenue Code. Companies developing similar innovative hardware solutions, testing novel configurations, or significantly improving the functional reliability of existing electronic control systems can leverage these exact types of technical activities to claim substantial R&D tax credits, thereby offsetting the costs associated with their engineering and product development efforts.
