Patents by Inventor Ronald K. Hupfer

Ronald K. Hupfer 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: 5044704
    Abstract: An adjustable refrigerator crisper drawer structure including a frame having three discrete locations for removable drawer support members. Thus the drawer support members may be located at discrete locations to accommodate various drawer sizes. One end of the drawer support member is locked to the support frame. The other end is slideably received in the support frame. Two rigid rails are provided for reinforcing the support frame. The rails are secured to the front and rear members of the frame and respectively support the front and rear portions of the drawer support member.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: September 3, 1991
    Assignee: Whirlpool Corporation
    Inventors: Marc R. Bussan, Ronald K. Hupfer, Marion J. Weis
  • Patent number: 4709556
    Abstract: A retainer clip is provided for maintaining the relative relationship of tube portions in a condensing system. The condensing system for which use of the inventive clip is contemplated comprises first and second tube portions extending in spaced, substantially parallel relationship and a third tube portion extending transversely to the first and second tube portions. The clip is engaged with and turned relative to the first and second tube portions to effect assembly of one portion of the clip. Another portion of the clip is snap-fit to the third tube portion and thereby prevents disassembly of the one clip portion.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: December 1, 1987
    Assignee: Whirlpool Corporation
    Inventor: Ronald K. Hupfer