Patents by Inventor Helmuth Maier

Helmuth Maier 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).

  • Publication number: 20050001081
    Abstract: A description is given of a document destroyer (11) which has a cutting unit (32). In order for documents which are to be destroyed, such as paper sheets (34), to be fed in as precisely rectilinear and parallel a manner as possible, a supply guide (14) with a supply shaft (16) and a supply channel (17) running therein may be designed to be flat, such that the paper cannot crumple or buckle laterally. Furthermore, the width of the supply channel (17) should only be minimally more, for example, than the width of a normal page as used, for example, for copiers. Rectilinear infeed may also be ensured as a result.
    Type: Application
    Filed: June 10, 2004
    Publication date: January 6, 2005
    Applicant: Martin Yale International GmbH
    Inventor: Helmuth Maier
  • Patent number: 5934580
    Abstract: A document shredder (11) has a cutting mechanism (12) constructed as a chassis and in which the cutting rollers (16) are mounted so as to contrarotate. They are designed as disks cutting on both sides for particle cutting. Over the entire length of the cutting rollers (16) extend stripper elements (28, 29), whose individual strippers (31) are combined into a block by means of longitudinally directed connecting elements (33). As they engage by more than 180.degree., almost 270.degree., around the shaft cross-section (18), two stripper elements (28, 29) are connected in mutually fitting manner in the circumferential direction. The stripper elements can be made in one piece from injection moulded plastic and are also used for the connection of the two side walls (14, 15) of the cutting mechanism (12).
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: August 10, 1999
    Assignee: Schleicher & Co. International
    Inventors: Franz Maier, Helmuth Maier, Bruno Lang