Marine Safety Interlock System for Fall Prevention

Publication ID: 24-11857816_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Marine Safety Interlock System for Fall Prevention,” Published Technical Disclosure No. 24-11857816_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857816_0007_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,816.

Summary of the Inventive Concept

The inventive concept applies the core technology of the fall prevention safety interlock system to the marine industry, ensuring the safety of crew members on marine vessels by preventing accidents through a comprehensive interlock system.

Background and Problem Solved

The original patent addressed the need for fall-arrest protection devices in warehouses, construction, and maintenance environments. However, the marine industry has unique safety challenges, particularly with crew members working at heights on vessels. The inventive concept solves the problem of ensuring crew safety on marine vessels by adapting the fall prevention safety interlock system to the marine environment.

Detailed Description of the Inventive Concept

The marine safety interlock system comprises a marine harness worn by a crew member, a safety attachment ring, and a marine interlock circuit. The marine interlock circuit confirms whether one or more safety conditions have been met, including whether the safety attachment ring is attached to a fall-arrest tether of the marine vessel, and whether all buckles on the marine harness are attached. The system is electrically coupled to a vessel control system, which enables or disables the marine vessel based on whether the safety conditions have been met. The system may also include a communication system to alert the crew member if one or more safety conditions have not been met.

Novelty and Inventive Step

The new claims introduce a novel application of the fall prevention safety interlock system to the marine industry, which is non-obvious compared to the original patent. The inventive step lies in adapting the core technology to address the unique safety challenges of the marine environment, including the need to ensure crew safety on vessels.

Alternative Embodiments and Variations

Alternative embodiments may include variations in the design of the marine harness, safety attachment ring, and marine interlock circuit. For example, the marine harness could be designed for specific tasks, such as cargo handling or maintenance. The marine interlock circuit could be integrated with other safety systems on the vessel, such as emergency stop systems.

Potential Commercial Applications and Market

The marine safety interlock system has significant commercial potential in the marine industry, particularly for vessel operators and owners who prioritize crew safety. The system could be marketed as a retrofit solution for existing vessels or as an integrated safety feature for new vessel designs.

Field of Art

Safety systems and electrical interlocking circuits for personal protective equipment, with expertise in mechanical engineering, electrical circuit design, and industrial safety systems

Person of Ordinary Skill (PHOSITA) Profile

A professional with a bachelor's degree in mechanical or electrical engineering, 3-5 years of experience in industrial safety design, familiar with safety interlock systems, electrical circuit design, and industry-specific safety regulations

Obviousness Rationale

A PHOSITA would recognize that the core safety interlock technology from the source patent can be readily adapted to marine environments by applying the same fundamental electrical and mechanical principles. The marine safety interlock system maintains the critical design elements of the original patent, including buckle-based switches, safety attachment mechanisms, and circuit-based safety verification. The adaptation to marine contexts represents a predictable variation that would be obvious to a skilled practitioner seeking to extend safety interlock technology to different industrial domains.

Obvious Combinations & Variations

Source Patent Element
Safety harness with multiple buckles and mechanical switches that control electrical circuit activation
PTD Variation
Marine harness with similar buckle configuration and safety attachment ring adapted for marine vessel environments
Obviousness Reasoning
Transferring a known safety interlock design to a marine context represents a standard design adaptation using known techniques, with predictable results in safety system engineering
Source Patent Element
Harness interlock circuit with battery, oscillator, and mechanical switch configuration
PTD Variation
Marine interlock circuit integrated with vessel control system to enable/disable vessel operation based on safety conditions
Obviousness Reasoning
Extending the electrical interlock concept to control system integration is a logical and predictable application of the original safety circuit design principles
Source Patent Element
Fall-arrest safety system with attachment tether and safety ring
PTD Variation
Marine-specific fall-arrest tether system with communication alerts for unmet safety conditions
Obviousness Reasoning
Adding a communication layer to an existing safety interlock system represents an obvious enhancement using standard safety engineering techniques
Source Patent Element
Power circuit that activates only when all mechanical switches are closed
PTD Variation
Marine vessel control system that enables operation only when all safety conditions are verified
Obviousness Reasoning
Applying the same conditional activation principle to a different technical domain is a straightforward and predictable design extension
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857816, the claimed marine safety interlock system variations would have been obvious to a person having ordinary skill in the art at the time of invention. The disclosed technical modifications represent predictable applications of known safety interlock principles to marine industrial contexts, utilizing standard engineering techniques to adapt existing safety system architectures.

Original Patent Information

Patent NumberUS 11,857,816
TitleFall prevention safety interlock
Assignee(s)Down Safely LLC