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:
Apr. 17, 1979
Filed:
Jul. 27, 1977
Wilhelm von Allworden, Erbach, DE;
Jean Walterscheid GmbH, Lohmar, DE;
Abstract
A three point linkage for attaching a working machine to a vehicle includes two lower guide members, a substantially U-shaped coupling frame pivotally connected at its ends with the lower guide members, and an upper guide member supported by tension springs from the U-shaped coupling frame. A length adjusting device is carried by the upper guide member for longitudinally varying its length. The upper guide member can be secured in various adjusted length positions. A link is connected between the coupling frame and the length adjusting device for actuating the adjusting device to vary the length of the upper guide member upon the application of pressure to the coupling frame. A catch hook for connection to the working machine is carried at one end of the upper guide member and the hook can be locked and unlocked by movement of the coupling frame.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile