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:
Jul. 17, 1990
Filed:
Apr. 25, 1989
Peter Bartel, Hattingen, DE;
Rolf Schuler, Heiligenhaus, DE;
Kiekert GmbH & Co. Kommanditgesellschaft, Heiligenhaus, DE;
Abstract
A power actuator used with a door latch has a housing fixed adjacent the latch and a slide linked to the latch and displaceable along an axis in the housing between locked and unlocked positions respectively corresponding to the locked and unlocked conditions of the latch. This slide is formed with a radially elastically deflectable entrainment formation and with a crosspiece. An axial spindle carries a nut engageable with the entrainment formation and the crosspiece of the slide. A radially elastically deflectable locking dog axially fixed to the slide is also engageable with the nut and the housing is formed with a radially inwardly open recess in which the dog is engageable only in the locked position of the slide. An electric motor can rotate the spindle and thereby displace the nut from an antitheft end position through an intermediate position and into an end locked position. In the antitheft position the nut engages the crosspiece and the dog, presses the dog into the recess, and positively retains the slide in the locked position. In the intermediate position the nut engages the entrainment formation of the nut in the locked position of the slide and out of engagement with the dog. In the end locked position the nut engages the entrainment formation of the nut in the unlocked position of the slide. The slide is displaceable between its unlocked and locked positions in the unlocked end position of the nut by elastic deflection of the entrainment formation.