Qinghu Lei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A bed frame has a first horizontal frame member and a second horizontal frame member formed parallel to the first horizontal frame member. A crossbeam extends from the first horizontal frame member to the second horizontal frame member. The crossbeam is inserted into the first horizontal frame member and the second horizontal frame member and is retained using a plug. A mounting aperture formed on the first horizontal frame member receives the crossbeam. The mounting aperture has a wide portion above a narrow portion. The wide portion includes a plug area. The narrow portion includes a crossbeam area, which receives the crossbeam. The plug area receives the plug.
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