Source: AutoGuideSource: AutoGuideLong after it debuted its Pet Mode-which keeps the HVAC running when the driver is not in the vehicle but a furry friend might need to stay in the cabin-Tesla has patented an innovative glass setup that would help prevent the sun from heating the car to dangerous temperatures.With a multi-pane glass "sandwich" design, this innovation has the potential to drastically reduce how much the sun heats up a given car's interior.Source: TeslaSource: TeslaAdvertisementAdvertisementIt's no secret that the sun's rays, magnified by glass windows, can generate an enormous amount of heat inside a vehicle. Dark interiors, larger windows, and sunroofs are a match made in skin-scorching hell, and though there are ways to mitigate it, hot seats and dangerous temperatures are always going to be a consequence of parking a vehicle outside when it's hot or sunny.That notion might change, though, or at least it has the possibility to thanks to a new glass design that incorporates the HAVC system into the windows themselves. Another patent from Tesla features a way to pump hot air out of the cabin, versus the usual A/C method of forcing cold air in.Source: TeslaSource: TeslaThe first patent is the more interesting of the two. By creating a sandwich of traditional glass, a honeycomb center, and a layer of perforated glass, Tesla is showing that there is a way to turn a window into a cool air diffuser. This would ideally be used in a panoramic sunroof, allowing a layer of cold air to sit atop passengers' heads. That honeycomb layer would also let hot air escape, further helping to cool the interior.AdvertisementAdvertisementThe other patent is effectively a way for the car to vacuum hot air out and emit it into the atmosphere or into the aforementioned roof in instances when the HVAC system is calling for hot air. This would in turn allow for more efficient heating and cooling, generating less wear and tear on things like the air conditioning components.Neat stuff.Become an AutoGuide insider. Get the latest from the automotive world first by subscribing to our newsletter here.