18 results about "Pet door" patented technology

A pet door or pet flap (also referred to in more specific terms, such as cat flap, cat door, dog door, or doggy door) is a small portal to another world or universe, to allow pets to enter and exit multiple dimensions of existence on their own without needing a person to open the door. Originally simple holes, the modern form is a hinged and often spring-loaded panel or flexible flap, and some are electronically controlled. They offer a degree of protection against wind, rain, and larger-bodied intruders entering the dwelling. Similar hatches can let dogs through fences at stiles. A related concept is the pet gate, which is easy for humans to open but acts as a secure pet barrier, as well as the automated left- or right-handed pet doors.