Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 5088453 | Delivery valve unit on a compensating tank A delivery-valve unit is provided on a compensating tank in the cooling circuit of an internal-combustion engine. Individual relief valves inside a receiving housing arranged horizontally in a cover of the compensating tank are additionally surrounded by ... | 02/18/1992 |
| 4640235 | Apparatus for controlling the coolant medium circulation of an internal combustion engine A device is provided for protecting the coolant circulation in an internal combustion engine, especially a motor vehicle engine, from excess pressure. A first pressure control valve is arranged in the upper region of a coolant-carrying tank and adjusted t... | 02/03/1987 |
