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:
May. 28, 1991
Filed:
Apr. 26, 1990
Ronald R Siegrist, Grass Lake, MI (US);
Hoover Universal, Inc., Plymouth, MI (US);
Abstract
A floating drive mechanism for a power seat adjuster in which carriages are carried by two parallel inserts, each of the inserts including a toothed rack in mesh with a pinion drive gear. The gear and rack are held in a consistent mesh with one another by a spring retainer so that during adjustment of the seat, as the carriage is moving, dimensional variations of the carriages and inserts do not effect the mesh between the gears and racks. The gears include drive shafts which terminate in spherically radiused square drive ends to which are crimped the ends of a torque tube coupling the pinion gears to one another. A transmission/motor assembly pivotally mounted to one of the carriages is used to drive the two gears. The drive shaft couplings with the torque tube enable the two gears to float relative to one another and also relative to the motor/transmission assembly to maintain the consistent mesh between the gears and the racks.