Patents by Inventor Johann Paul Hofer

Johann Paul Hofer 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).

  • Patent number: 8528435
    Abstract: A power assist element for arrangement in a synchronizer hub of a transmission synchronization device includes a base body, which has a height, a longitudinal extension and a lateral extension, and which in the direction of the longitudinal extension comprises includes two opposite, distal end sections. In at least one end section a functional surface is formed, which in the installed state cooperates with the synchronizer hub. On the base body between the two distal end sections a central elevation is formed for engagement in a sliding sleeve groove on a bottom of a sliding sleeve. The central elevation includes at least one additional functional surface which can be brought into active connection with the sliding sleeve. The functional surface in the distal end section(s) is at an acute angle to the greatest longitudinal extension of the base body and oriented at an angle to the longitudinal extension.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: September 10, 2013
    Assignees: Miba Sinter Austria GmbH, Hofer Forschungs- und Entwicklungs GmbH
    Inventors: Thomas Hackl, Johann Paul Hofer, Markus Hofer, Alexander Mueller, Helmut Pamminger
  • Publication number: 20110185833
    Abstract: The invention relates to a power assist element (11) for arrangement in a synchronizer hub (2) of a transmission synchronization device (1), comprising a base body (22), which has a height (23), a longitudinal extension (24) and a lateral extension (25), and which in the direction of the longitudinal extension (24) comprises two opposite, distal end sections (26), wherein in at least one end section (26) a functional surface (27) is formed, which in the installed state cooperates with the synchronizer hub (2), wherein on the base body (22) between the two distal end sections (26) a central elevation (15) is formed for engagement in a sliding sleeve groove (17) on a bottom (16) of a sliding sleeve (5), wherein the central elevation (15) comprises at least one additional functional surface (34), which can be brought into active connection with the sliding sleeve (5).
    Type: Application
    Filed: August 4, 2009
    Publication date: August 4, 2011
    Applicants: MIBA SINTER AUSTRIA GMBH, HOFER FORSCHUNGS - UND ENTWICKLUNGS GMBH
    Inventors: Thomas Hackl, Johann Paul Hofer, Markus Hofer, Alexander Mueller, Helmut Pamminger
  • Publication number: 20080155974
    Abstract: An engine suitable for a motor vehicle, preferably a motorcycle, and a related transmission is provided. The transmission is provided with a hydrostatic device and a planetary transmission leading to a driven shaft. In order to optimize the engine with regard to construction and function the hydrostatic device of the transmission cooperating with the internal combustion engine is in an effective connection to the planetary transmission.
    Type: Application
    Filed: October 19, 2007
    Publication date: July 3, 2008
    Applicant: Hofer Forschungs & Entwicklungs GmbH Co KG
    Inventors: Heinz Aitzetmueller, Dieter Stoeckl, Reinhard Flachs, Johann Paul Hofer, Markus Hofer
  • Patent number: 7361111
    Abstract: A power branching transmission suitable for motor vehicles having an internal-combustion engine which drives an input shaft of the power branching transmission has several branches comprising at least one power shift transmission with a number of gears and has an output shaft. For the comprehensive optimization of the power branching transmission, at least one of the branches is equipped with a control device by means of which, during the starting operation of the motor vehicle, the rotating direction of the output shaft can be changed, and during the starting operation and with shifted gears of the power shift transmission connected with the input shaft, by way of the control device, the rotational speed of the output shaft can be continuously influenced.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: April 22, 2008
    Assignee: Hofer Forschungs und Entwicklungs & Co. KG
    Inventors: Heinz Aitzetmueller, Reinhard Flachs, Johann Paul Hofer, Markus Hofer, Dieter Stoeckl