Patents by Inventor Daniel Greiner

Daniel Greiner 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).

  • Compressor machine with two counter-rotating rotors
    Patent number: 7128543
    Abstract: The compressor machine has two rotors rotating in opposite directions, which are fitted to two parallel, spaced apart shafts mounted in a housing. One of the shafts is driven directly and the other by intermeshing toothed gears mounted on the shafts. The housing has two radial walls which are configured in one piece with each other and with a peripheral wall and in which the shafts are mounted. The toothed gears are arranged between these radial walls. A side wall of the housing has an opening sealed by a removable cover. With the cover removed, the toothed gears can be fitted to the shafts through these openings. The bearing bores for the shafts can be produced and machined in the one-piece housing in a single set-up, so that, with a minimum number of parts, any causes of alignment errors are avoided.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: October 31, 2006
    Assignee: Rietschle Thomas Schopfheim, GmbH
    Inventors: Fritz-Martin Scholz, Wolf-Rudiger Wagener, Daniel Greiner
  • Rotary piston pump
    Publication number: 20060222553
    Abstract: A rotary piston pump has at least two rotors (8) with associated drive shafts (26), wherein for each rotor (8) an associated bearing tube (28) is provided, which extends into the associated rotor (8) and through which the associated drive shaft (26) passes. Between the inside (24) of each rotor (8) and the outside of the bearing tube (28) a first gap (64) is provided. In operation, the first gap (64) contains cooling fluid and is part of a cooling fluid circuit.
    Type: Application
    Filed: February 23, 2004
    Publication date: October 5, 2006
    Inventors: Fritz-Martin Scholz, Jürgen Oswald, Herbert Vogt, Daniel Greiner, Wolf-Rüdiger Wagener
  • Compressor machine with two counter-rotating rotors
    Publication number: 20060051231
    Abstract: The compressor machine has two rotors rotating in opposite directions, which are fitted to two parallel, spaced apart shafts mounted in a housing. One of the shafts is driven directly and the other by intermeshing toothed gears mounted on the shafts. The housing has two radial walls which are configured in one piece with each other and with a peripheral wall and in which the shafts are mounted. The toothed gears are arranged between these radial walls. A side wall of the housing has an opening sealed by a removable cover. With the cover removed, the toothed gears can be fitted to the shafts through these openings. The bearing bores for the shafts can be produced and machined in the one-piece housing in a single set-up, so that, with a minimum number of parts, any causes of alignment errors are avoided.
    Type: Application
    Filed: October 24, 2003
    Publication date: March 9, 2006
    Applicant: Rietschle Thomas Schopfheim GmbH
    Inventors: Fritz-Martin Scholz, Wolf-Rudiger Wagener, Daniel Greiner