Removable Protective Cap for Robot Arm Parts
This patent describes a cap designed to be easily attached and removed from a robot arm element, using a clever system of interlocking shapes and a flexible part to hold it securely.
Original patent title: “Cap for a robot arm”
This patent describes a cap designed to be easily attached and removed from a robot arm element, using a clever system of interlocking shapes and a flexible part to hold it securely. Granted in 2026.
Coverage
What does this patent actually cover?
The patent describes a cap that can be quickly connected to and disconnected from a specific part of a robot arm. This cap attaches to the outer surface of a robot arm element, which has a housing with both an outer and inner surface. The connection works by fitting an 'upper cavity' on the cap over an 'upper protrusion' on the arm, and at least one 'first lower cavity' on the cap over a 'first lower protrusion' on the arm. Once these parts are aligned, a 'flexible suspension element' locks the protrusions into their cavities, keeping the cap firmly in place. For example, this cap could cover a sensitive sensor or a joint on an industrial robot arm, protecting it from dust or impacts while allowing for easy removal when maintenance is needed.
The gap
What does this patent NOT cover?
- Does not cover caps that are permanently attached, such as by welding or strong adhesives.
- Does not cover caps that require tools like screws, bolts, or clips for attachment and removal.
- Does not cover caps that use magnetic forces or simple friction to stay connected.
- Does not cover caps designed for non-robot arm applications, like covers for static machinery.
- Does not cover caps that integrate active electronic components, beyond their specific attachment mechanism.
These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.
Key facts
What made this novel
The clever part is the specific combination of cavities and protrusions, secured by a flexible suspension element. This allows for a strong, engaged connection that is also easily reversible without needing tools, balancing security with convenience.
Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.
Where you've seen this
Real-world examples
Protective covers for robot arm joints in manufacturing plants
Caps for sensor modules mounted on robotic manipulators
Dust covers for end-effector connections on industrial robots
Aesthetic covers for exposed wiring or components on collaborative robots
Why it matters
The bigger picture
This type of removable cap design is important for the practical use of robots in industrial settings. It allows robot components to be protected from environmental factors like dust or debris, which can extend the lifespan of the machinery. The easy-to-remove design also simplifies maintenance and repair, reducing the time robots are out of service and improving overall operational efficiency.
Filed
June 13, 2023
Granted
September 15, 2026
Market context
Who's building on this
Companies in this space
Major industrial robot manufacturers like FANUC, KUKA, ABB, and Yaskawa are constantly developing and improving components for their robot arms. Companies that supply parts and accessories for robotics, focusing on modularity and ease of maintenance, would also be interested in such attachment mechanisms.
Market impact
This type of design contributes to the ongoing trend of making industrial robots more modular and easier to service. By enabling quick, tool-free attachment and removal of protective covers, it can reduce robot downtime for maintenance or upgrades, which directly impacts productivity in automated manufacturing and logistics environments.
Claim 1 — Plain English
What this patent covers
The patent describes a cap that can be quickly connected to and disconnected from a specific part of a robot arm. This cap attaches to the outer surface of a robot arm element, which has a housing with both an outer and inner surface. The connection works by fitting an 'upper cavity' on the cap over an 'upper protrusion' on the arm, and at least one 'first lower cavity' on the cap over a 'first lower protrusion' on the arm. Once these parts are aligned, a 'flexible suspension element' locks the protrusions into their cavities, keeping the cap firmly in place. For example, this cap could cover a sensitive sensor or a joint on an industrial robot arm, protecting it from dust or impacts while allowing for easy removal when maintenance is needed.
The clever bit
The clever part is the specific combination of cavities and protrusions, secured by a flexible suspension element. This allows for a strong, engaged connection that is also easily reversible without needing tools, balancing security with convenience.
What it does not cover
- Does not cover caps that are permanently attached, such as by welding or strong adhesives.
- Does not cover caps that require tools like screws, bolts, or clips for attachment and removal.
- Does not cover caps that use magnetic forces or simple friction to stay connected.
- Does not cover caps designed for non-robot arm applications, like covers for static machinery.
- Does not cover caps that integrate active electronic components, beyond their specific attachment mechanism.
Patent timeline
Application submitted to the patent office
Patent officially issued
PatentBrief Score
Impact Score
Early stage
Citation count
0/40
No citations yet
Claim breadth
0/20
Narrow claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →
Recency
20/20
Granted within 5 years
Assignee scale
0/20
Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →
PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.
Heuristic Value Estimate
What this patent might be worth
$12K – $38K
Midpoint $24K · 16.7 yr remaining · industry baseline
Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.
Claim text not yet imported for this patent
Concepts involved
Cite this patent
(2026). Removable Protective Cap for Robot Arm Parts (U.S. Patent No. 12,736,122). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/12736122/cap-for-a-robot-arm
Auto-generated from the patent record. Double-check author order and the issue date against the official USPTO document before submitting.
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Common Questions
Frequently Asked Questions
What does Removable Protective Cap for Robot Arm Parts cover?
This patent describes a cap designed to be easily attached and removed from a robot arm element, using a clever system of interlocking shapes and a flexible part to hold it securely.
When does this patent expire?
This patent is expected to expire on September 15, 2046, when the invention enters the public domain.
What problem does this patent solve?
This type of removable cap design is important for the practical use of robots in industrial settings. It allows robot components to be protected from environmental factors like dust or debris, which can extend the lifespan of the machinery. The easy-to-remove design also simplifies maintenance and repair, reducing the time robots are out of service and improving overall operational efficiency.
What does this patent NOT cover?
Does not cover caps that are permanently attached, such as by welding or strong adhesives.
Patent monitoring