Patents by Inventor Franz Muri

Franz Muri 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).

  • Concrete crushing grappler
    Patent number: 6766973
    Abstract: Concrete-crushing pincers comprise a first pincer jaw and a second pincer jaw which are swivelingly connected to one another via a joint and which are movable from an open position into a closed position for demolishing a concrete structural member reinforced with reinforcing irons. The first pincer jaw is formed by a frame body. The second pincer jaw is formed by a body. The first pincer jaw and the second pincer jaw have concrete-crushing sectors and cutting elements. The cutting elements are detachably fastened in the first pincer jaw and the second pincer jaw and can be exchanged.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: July 27, 2004
    Inventor: Franz Muri
  • Concrete crushing grappler
    Publication number: 20030132327
    Abstract: Concrete-crushing pincers comprise a first pincer jaw (1) and a second pincer jaw (2) which are swivelingly connected to one another via a joint (3) and which are movable from an open position into a closed position for demolishing a concrete structural member reinforced with reinforcing irons. The first pincer jaw (1) is formed by a frame body (6). The second pincer jaw (2) is formed by a body (7). The first pincer jaw (1) and the second pincer jaw (2) have concrete-crushing sectors (9, 10, 13, 14, 15, 16) and cutting elements (17 and 20). The cutting elements (17 and 20) are detachably fastened in the first pincer jaw (1) and the second pincer jaw (2) and can be exchanged.
    Type: Application
    Filed: November 26, 2002
    Publication date: July 17, 2003
    Inventor: Franz Muri