The MacBook seems to have a host of complaints about against it, the inadequate number of Thunderbolt ports or the lack of an SD card slot. The most persistent problem with the MacBook and the MacBook Pro is that the keyboard on each can rendered useless by something as little as a crumb. But now, a patent found by The Sun suggests a fix could be on the way for future versions of Apple’s laptops.
The problem is that the keyboards on the MacBook and MacBook Pro are super shallow. When you press a key it only moves (or “travels”) less than a millimeter. A normal keyboard on a laptop has a travel distance of 1.5 to 2mm while the travel on a fancy mechanical keyboard is often 3mm or more. Travel is one of the many ways you judge whether a keyboard feels nice to type on, and Apple’s shallow travel has earned ire since it was introduced with the MacBook 2015.
It’s also given it much less room for error. So when a crumb gets under the key, it can’t fully depress properly. Instead, it stops moving all together and you have to take a minute to knock the crumb (or sand or one fleck of dirt) out or reach for the canned air.
Apple’s patent suggests three primary ideas. One is to apply a membrane between the mechanism that moves the key (also known as a switch) and the keycap. That’s a funny one to attempt to patent as a number of keyboard makers already do something similar, including Apple. Topre and Razer both make “hybrid” switches that incorporate a membrane and a mechanical component, too. This latest Apple hybrid would simply add another membrane to specifically protect the mechanical elements.
The second idea Apple has is using a perforated membrane that would, it appears, emit gas or air with each keypress, effectively clearing the key of debris. The third idea is to create, essentially, an awning around the keycap that funnels debris away from the key switch.
All three ideas, implemented in a wide variety of ways, can be found in the patent here. The patent was filed back on September 8th, 2016, and only became public yesterday. When, or if, it arrives in future Apple laptops remains to be seen.