Patents by Inventor Lothar Hay

Lothar Hay 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: 7056255
    Abstract: In a differential cage for a differential gear, a cage member is provided with a cavity machined on an inside and having an installation opening for compensating gears and driving gears. An axle drive gear and a parking lock gear form a one-piece forging together with the cage member.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: June 6, 2006
    Assignee: Johann Hay GmbH & Co. KG
    Inventor: Lothar Hay
  • Publication number: 20050137047
    Abstract: In a differential cage for a differential gear, including a cage member with a cavity which is machined on the inside and has an installation opening for compensating gears and driving gears, and further including an axle drive gear which is connected integrally with the cage member. The cage member has two bores to support a respective drive shaft. One of the bores has a greater diameter than the other one and is dimensioned so as to be great enough for the introduction of a machining tool into the cavity. Provision is made for a bearing sleeve serving to support the associated drive shaft which is to be threaded into and press fitted in the bore which has the greater diameter.
    Type: Application
    Filed: December 17, 2003
    Publication date: June 23, 2005
    Applicant: Johann Hay GmbH & Co. KG
    Inventor: Lothar Hay