Patents by Inventor Morell Anderson

Morell Anderson 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: 4828428
    Abstract: A double tamping bar vibratory screed is disclosed for use with a lay-down machine for laying a roadway. The screed consists of a main body portion having a strike-off plate on its leading edge which is followed by two tamping bars having independent eccentric shafts. These tamping bars are in turn followed by a vibrating plate which together perform the necessary compaction and provide a smooth, even surface with a variety of materials.The tamping bars are resiliently designed with a slightly rearward angle of attack and have horizontal material engagement faces which contact the material to be compacted and provide the desired result.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: May 9, 1989
    Assignee: Pav-Saver Manufacturing Company
    Inventor: Morell Anderson