Patents by Inventor Edwin V. Stephens

Edwin V. Stephens 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).

  • Combined transport and gate assembly for document storage and retrieval systems
    Patent number: 4285623
    Abstract: In a document storage and retrieval system of the type including at least one storage rack having a plurality of individual storage compartments, each of the compartments normally having positioned therein a cartridge holding a plurality of cards or the like, at least a first one of the compartments being empty and functioning as an access port for feeding cartridges into and removing cartridges from the storage rack, and a carriage assembly which travels on one side of the rack for transferring cartridges between the access port and the other storage compartments, the carriage assembly including a transport mechanism for moving cartridges thereon to and thereoff of, there is disclosed an improved transport and gate assembly positionable in a single empty storage compartment immediately below the access port which acts as a stop and cartridge presence sensor for blocking movement of a cartridge through the access port on to or off of the carriage assembly and which selectively retracts and allows movement of
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: August 25, 1981
    Assignee: Infodetics Corporation
    Inventor: Edwin V. Stephens