Who Invented the Catflap?

The catflap was reportedly invented by Sir Isaac Newton, although that claim is disputed by some of his biographers. However, there are two holes in the door of his house that are said to be the first catflaps. The catflap has come a long way since its simple origins — now there are flaps that operate via a sensor attached to the cat's collar and open only when the cat is near, which keeps out other animals.

More facts about Isaac Newton:

• Newton was not knighted for his scientific and mathematical discoveries but for his work at the royal mint and his numerous political activities.


• Contrary to popular belief, Newton wrote more about the Bible than about math or science. He was fascinated with studying the Bible and trying to derive codes and secrets from it.


• The story of the falling apple being the inspiration for Newton's theory of gravity is probably fictionalized. The story was first spread by the French author Voltaire.

Frequently Asked Questions

Who is credited with inventing the catflap?

While there is no definitive inventor of the catflap, it is often attributed to Sir Isaac Newton during his time at Cambridge University. According to anecdotes, he created a small hole in his door to allow his cat to enter and exit without interrupting his light experiments.

What was the purpose behind the invention of the catflap?

The primary purpose of the catflap was to provide convenience for both the pet and the owner. It allowed cats to move freely in and out of the house without requiring human assistance, thus eliminating the need for owners to constantly open doors for their pets.

How has the design of the catflap evolved over time?

Since its rudimentary beginnings, the catflap has evolved significantly. Modern designs include magnetic and microchip versions that provide enhanced security by allowing only the resident pet to enter. Some even have programmable locks and can track a pet's movements, according to pet product manufacturers.

Are there any security concerns associated with catflaps?

Yes, traditional catflaps can pose security risks by being potential entry points for intruders or other animals. However, advancements in technology have led to more secure catflaps that can be locked or only allow access to pets with a corresponding microchip or magnetic collar tag.

Can catflaps be installed in any type of door?

Catflaps can be installed in a variety of doors, including wood, glass, and even metal. However, the installation process and the type of catflap suitable may vary depending on the door's material and thickness. Professional installation is recommended for complex materials like glass or for electronic catflaps.

What are the benefits of having a catflap for pet owners?

Having a catflap offers pet owners the convenience of not having to open the door every time their cat wants to go out or come in. It promotes the independence of the cat and can help reduce indoor accidents. Additionally, it allows cats to exercise and explore outdoors, contributing to their physical and mental well-being.