Patents by Inventor Donald James Keir

Donald James Keir has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4020769
    Abstract: A self-energizing cargo tie-down gripping anchor assembly is disclosed for anchoring a tie-down guy to a conventional track having a plurality of spaced apart openings in the rail portion thereof. The anchor assembly includes center body apparatus having a transversely extending pin received by one of the openings in the track. The anchor assembly also includes a pair of gripping members which are pivotally mounted to the center body apparatus and which underline the rail portion of the track to grip the rail both laterally and vertically with serrated edges. Each gripping assembly includes a hook member which extends above the corresponding gripping assembly and towards the opposite gripping assembly such that the pair of hook members define a guy-receiving opening therebetween. The hook members are purposely configured such that a vertical force component acting on a guy is shared by both hook members and is transmitted to the serrated gripping edges of the gripping assemblies.
    Type: Grant
    Filed: April 17, 1975
    Date of Patent: May 3, 1977
    Inventor: Donald James Keir