The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2020
Filed:
Aug. 26, 2016
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Philip Wurzberger, Nürnberg, DE;
Thorsten Biermann, Wachenroth, DE;
SCHAEFFLER TECHNOLOGIES AG & CO. KG, Herzogenaurach, DE;
Abstract
Transmission devices are disclosed having a first planetary drive, a second planetary drive, a hollow shaft, and a shaft which is seated concentrically in the hollow shaft and can be rotated relative to the hollow shaft. In one example, the first planetary drive includes a first sun gear and first planet gears in mesh with the first sun gear, and the second planetary drive has second planet gears in mesh with a second sun gear. The first planet gears and second planet gears may be spaced apart radially from a rotational axis common to the hollow shaft and the shaft, and a shaft section of the shaft may protrude axially from one end of the hollow shaft. In this arrangement, the first sun gear is seated on the shaft section. The second sun gear may be seated on the hollow shaft coaxially with the first sun gear. The first sun gear may carry a seal that rests sealingly on a rotationally symmetrical section of the hollow shaft, which is configured to be rotated relative to the first sun gear about the rotational axis.