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:
Oct. 18, 1988
Filed:
Aug. 04, 1987
Joseph Pickles, Troy, MI (US);
Ferro Manufacturing Corporation, Southfield, MI (US);
Abstract
An axial drive mechanism consisting of a worm gear, a first planetary gear system having a carrier, helical planet gears in meshing engagement with the worm gear and mounted on the carrier, and a ring gear on the carrier. An electric motor can be used to drive the worm gear and a second planetary gear system can be arranged in a coaxial relation with the first system to achieve a desired gear reduction while retaining the axial arrangement of the drive. The second planetary gear system has planet spur gears arranged about and in meshing engagement with the first ring gear and a secondary ring gear encircling the planet spur gears. The second planetary gear system includes a carrier on which the planet spur gears are mounted and an output pinion gear formed integral with the last mentioned carrier. The stationary ring gear is conveniently formed as a part of the housing for the electric motor.