Patents by Inventor Ralph Alster

Ralph Alster 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: 4563040
    Abstract: Articles of furniture are constructed of a unique rigid assembly of rods, rod caps, posts and rigid panels in an inter-locking relationship. A pair of rods nest in parallel coplanar grooves in top or top and bottom surfaces of the rigid panel, with the ends of the rods inserted into holes in supporting posts. Rod caps are threaded onto matching threaded ends of the rods to secure the rods to the posts. The rods are secured against disalignment from the matching grooves in the rigid panel and prevent rotation of the panel. The posts can be slotted to receive the panel to create the appearance of a smooth end. Various articles of furniture can be assembled from the component parts, including tables, chairs, chests, cabinets, etc.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: January 7, 1986
    Inventor: Ralph Alster