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:
Jun. 02, 2026
Filed:
Dec. 08, 2023
Astra Gesellschaft Für Asset Management Mbh & Co. KG, Barsinghausen, DE;
Anatoli Stobbe, Barsinghausen, DE;
Klaus Göppert-Boenke, Bad Salzdetfurth, DE;
ASTRA GESELLSCHAFT FUR ASSET MANAGEMENT MBH & CO. KG, Barsinghausen, DE;
Abstract
The invention discloses a door opener for a door having a wing pivotally mounted to a door frame, said door opener comprising: The actuator comprises a motor having a rotatable shaft supporting a worm thread, and a spring member having two end portions is provided, wherein a first end portion of the spring member engages with the worm thread in order to displace the spring member linearly in the direction of extension of the rotatable shaft by rotating the worm thread, and wherein a second end portion of the spring member is coupled with the blocking member.