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:
Mar. 21, 1989
Filed:
Apr. 11, 1988
Michael A Dilich, Evanston, IL (US);
Triodyne, Inc., Niles, IL (US);
Abstract
A collapsible segment for a drive train, preferably a collapsible actuator arm for a vertical door opening mechanism, such as that for a garage door. The actuator arm comprises two primary components, first and second arms which are aligned with one end of one arm pivotally engaging one end of the other arm. A spring under tension extends between the arms on one side of the pivotal connection of the arms in order to normally retain the arms in alignment. The arms are formed such that they cannot pivot toward the spring. The arms are attached to the garage door mechanism at appropriate locations at opposite ends of the arms, with at least one of the attachment locations being offset from the arms on the other side of the pivotal connection such that when compressive force is applied to the arms, and when the force of the spring has been overcome, the arms are urged to pivot about the pivotal connection away from the spring, thus collapsing the actuator mechanism.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile