Patents by Inventor Elwyn J. Erickson

Elwyn J. Erickson 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: 4223859
    Abstract: A pail and work stand assembly for supporting a pail at an elevated location to provide a workman access to the contents of the pail. The pail can contain, for example, plaster, mortar, joint compound or other building materials while the workman works on the ceiling of a room using a pair of stilts or a ladder. A column assembly of the stand elevates a pail tray and can be adjustable in length. A plurality of fasteners are connected between the upper edge of the pail and the pail tray to securely hold the pail with respect to the stand whereby the workman can move the pail and stand without having to get off of the stilts or down from the ladder.
    Type: Grant
    Filed: July 12, 1978
    Date of Patent: September 23, 1980
    Inventor: Elwyn J. Erickson
  • Patent number: 4192462
    Abstract: A shielded spray apparatus for confined spraying of material, as plaster, paint, varnish or the like, usable to spray a large small area or when spraying is done under a windy environment. The apparatus includes a truncated housing defining an isolated spray chamber. The housing has a large planar open end defined by the forward edges of housing sidewalls. A rear opening in the rear center of the housing is smaller than and coplanar to the forward opening and closed by a flexible panel. The panel has an aperture in which is mounted a portion of the nozzle of a spray gun whereby material sprayed from the spray gun is directed through the chamber of the housing toward the forward open end when the forward open end is placed adjacent a wall or surface.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: March 11, 1980
    Inventor: Elwyn J. Erickson