This device approaches the issue of twisting off a cap from a glass bottle; using only one hand. The user simply places the device over-top of a bottle, and then pushes the button. This causes the innermost part to clasp and turn the cap, while the larger clamp securely fastens on the glass bottle.
This is a cut-away view to show how the parts referenced in the first caption would work with a bottle.
This device approaches the issue of opening packages. Mainly for smaller packages in particular, such as snack foods or pill packages. This is constructed of a thin block on a sturdy platform. There is a space in between a large portion of the area between where the block would meet the platform. In this space are blades that are arranged in a sort of “v”. This would be close enough that it would be difficult to injure oneself. Operation is manual, as the user slides the edge of their package along the blades to open it.
This design is aimed at addressing the issue of holding a book open while turning the page. This may be difficult with one hand if the book has a stiff or new casing. The device is comprised of a sturdy structure that is adjustable for the book to sit in. There are clips on either side in order to keep the book from closing. The page turner on the top goes to behind the next page at the press of a button, between the next page and the one following it; this is under the clip. It then moves to turn the page, landing just shy of the clip so that it can slide it in.
This design is a hope in solving the issue of using a zipper on the torso for someone who only has one hand. It is designed to slide over a belt and be unobtrusive. The sketch shows it sitting underneath the extra length of the belt (which is shown cut away). The side of the zipper that has the sliding female part of the zipper is the side that this device would be on. The user would simply slide/clip the very end of the zipper (underneath the sliding part) into the device allowing for the use of the free hand to insert the other side of the zipper into the sliding part. Once it is in place the user could start to zip up their article of clothing and then detach from the belt clip. Then, just finish zipping.
This is a couple views of the device without the belt, to offer better perspective.