14 Unusual US Patented Inventions

Pet Rock

Yeah, someone actually got a patent for putting a rock in a box. Gary Dahl filed Patent #4,022,227 in 1976 for his ‘Rock Pet Packaging’ invention. The guy became a millionaire by convincing people they needed a pet that didn’t need food, water, or walks.

The patent covered the specific way the rock was packaged with air vents and a training manual that was actually pretty funny. Millions of people bought these things, proving that sometimes the simplest ideas are the most brilliant.

Motorized Ice Cream Cone

Patent #5,971,829 went to a rotating ice cream cone that spins while you lick it. The inventor figured people were getting tired arms from turning their cones manually, so he created a battery-powered device that does the work for you.

The cone rotates at the perfect speed to ensure even licking coverage across the entire ice cream surface. It never really caught on, probably because most people can handle the exhausting task of rotating their own dessert.

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Bird Diaper

Lorraine Moore got Patent #5,934,226 for her avian waste collection system, better known as bird diapers. The invention includes a pouch that attaches around a bird’s rear end to catch droppings, plus decorative covers to make it fashionable.

Pet bird owners apparently needed a way to let their feathered friends fly around the house without creating a mess everywhere. The patent includes detailed diagrams showing proper fitting techniques for different bird sizes.

Method of Swinging on a Swing

This might be the most ridiculous patent ever granted. Patent #6,368,227 describes the ‘method of swinging on a swing’ and was issued to a 5-year-old boy whose father helped him file it.

The patent explains the revolutionary technique of pulling the chains toward you and then letting gravity do its thing. Critics pointed out that humans have been figuring this out on their own for thousands of years, but hey, the kid got his name on an official government document.

Anti-Eating Face Mask

Patent #4,344,424 covers a mask designed to prevent people from eating by making it physically impossible to get food in their mouths. The device looks like a cage that fits over your head with small openings for breathing and drinking liquids.

Lucy Barmby invented this back in 1982 as a weight loss aid, though it seems like it would just make people really angry and claustrophobic. The patent includes different sizes and adjustment mechanisms for various face shapes.

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Toilet Golf Game

Patent #4,936,578 describes a miniature golf game specifically designed for bathroom use. The kit includes a putting green that fits around the base of a toilet, a tiny golf club, and several practice targets.

Donald Pelton invented this in 1990 for people who wanted to improve their putting skills during bathroom breaks. The patent even includes safety warnings about keeping the electrical components away from water sources.

Kissing Shield

Patent #5,727,565 went to a thin plastic barrier designed to allow kissing while preventing the exchange of germs and diseases. The invention includes a flexible sheet with breathing openings that stretches between two people’s faces during romantic moments.

Inventor James White was clearly thinking about health and safety, but probably not so much about romance and spontaneity. The patent describes different thickness options and flavoring possibilities to enhance the experience.

Dog Umbrella

Patent #4,233,942 covers an umbrella specifically designed to attach to dogs to keep them dry during walks. The invention includes a harness system that holds a small umbrella over the dog’s back, leaving their legs free for normal movement.

While this sounds practical, most dogs would probably prefer to just shake off and get on with their lives. The patent includes size adjustments for everything from Chihuahuas to Great Danes.

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Baby Mop

Patent #4,344,209 describes an infant garment with absorbent material on the bottom that allows babies to clean floors while they crawl around. The Japanese inventor figured babies are going to crawl anyway, so why not make them useful for housework.

The patent includes different absorbent materials and attachment methods for maximum floor-cleaning efficiency. Child development experts probably had some opinions about this one.

Banana Slicer

Patent #7,293,362 went to a device specifically designed to slice bananas into uniform pieces. The plastic gadget has preset slots that create perfect banana rounds when you press down on the fruit.

While you could achieve the same result with a knife in about the same amount of time, some people apparently needed a specialized tool for this specific task. The patent includes different slot sizes for various banana dimensions.

Apparatus for Simulating a High Five

Patent #5,356,330 covers a mechanical device that provides the satisfying smack of a high five when you slap it. Albert Cohen invented this for people who needed positive reinforcement but didn’t have anyone around to celebrate with them.

The device includes sound effects and can be mounted on walls or desks for easy access. It’s basically a mechanical friend that’s always ready to congratulate you on your achievements.

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Beerbrella

Patent #D502,529 is a design patent for a tiny umbrella that clips onto beer bottles to provide shade for your beverage. The mini parasol prevents sun exposure that could warm up your drink or cause the bottle to sweat excessively.

While beer koozies already solved this problem, someone decided the world needed a more elegant, umbrella-based solution. The patent includes different colors and attachment mechanisms for various bottle shapes.

Gravity Powered Shoe Air Conditioner

Patent #6,463,674 describes a system that uses the motion of walking to power a cooling system inside shoes. The invention includes tiny fans and air circulation chambers built into the sole that activate with each step.

The more you walk, the cooler your feet get, which actually makes some sense for people who spend a lot of time on their feet. The patent covers different power generation methods and cooling distribution systems.

Hugging Machine

Patent #4,962,794 describes a device that provides deep pressure stimulation to simulate human hugging for therapeutic purposes. Temple Grandin invented this machine to help people with autism and anxiety disorders experience the calming effects of being squeezed without requiring human contact.

Unlike some of the sillier patents on this list, this invention actually helps people and demonstrates how unusual ideas can solve real problems. The machine includes pressure controls and safety features to ensure comfortable therapeutic experiences.

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When Weird Meets Wonderful

These patents show that the line between genius and madness is pretty thin, especially when it comes to solving problems that might not actually exist. While some of these inventions seem completely ridiculous, others have found their niche markets or even inspired better solutions down the road.

The patent system encourages people to think outside the box, even when that box contains something as simple as a rock or as complex as a shoe air conditioner. Sometimes the weirdest ideas end up changing the world, and sometimes they just m