Patents by Inventor Dean L. Schaffran

Dean L. Schaffran 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: 7137211
    Abstract: A clothes drying cabinet is provided with a shaker assembly including a bar suspended in the cabinet for supporting clothes hangers. A motor is mounted adjacent the bar and has a drive shaft. A drive weight is eccentrically mounted to the drive shaft of the motor so that upon actuation of the motor, the drive weight imparts a shaking motion to the bar so as to facilitate removal of wrinkles from the clothing on the hangers. A ballast weight may also be provided in the shaker assembly so as to evenly distribute the energy from the eccentric weight regardless of the weight of the clothes hanging on the bar.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: November 21, 2006
    Assignee: Maytag Corporation
    Inventors: Troy A. Johnson, Dean L. Schaffran
  • Patent number: 6922913
    Abstract: A laundry appliance includes a cabinet, a drying chamber, a door assembly, a blower assembly and an air passage for directing an airflow to the drying chamber. A media holder is removably positioned in the air passage to suspend a volatilizable media in the path of the airflow. The media holder includes a main body having rear wall formed from a latticework frame, an interior for receiving the volatilizable material, and a door member. The door member is also formed from a latticework frame. With this arrangement, both the rear wall and door member include a plurality of openings to allow an airflow to carry a fragrance or other substance from the volatilizable material through the air passage to treat clothes placed in the drying chamber.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: August 2, 2005
    Assignee: Maytag Corporation
    Inventors: Lisa J. Hood, Troy A. Johnson, Joseph M. Keeler, Paul E. Maass, Jeffrey D. Rupe, Dean L. Schaffran, Stephen D. Schober, Curtis J. Tremel
  • Patent number: 5292232
    Abstract: A self-contained liquid manifold attachable to a drive mechanism for a reciprocable pump, the manifold having a pumping cylinder, pressure transducer, pressure control mechanism, drain valve and control mechanism attached thereto, and liquid delivery outlets all forming a part thereof. The manifold and its associated components are removable from the reciprocable drive mechanism by detaching two fasteners. The pressure transducer and control mechanism includes a piston and cylinder removably indexed in a manifold bore, and an electrical switch in an adjacent housing with a ball bearing on the piston and a push rod resting on the ball bearing, the other push rod end constrained by a ball and spring combination.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: March 8, 1994
    Assignee: Graco Inc.
    Inventors: Duane D. Krohn, Dean L. Schaffran
  • Patent number: 4505405
    Abstract: A system for pumping liquid materials with reciprocating pumps driven by hydraulically operated motors, wherein the pressurized hydraulic oil which is used to drive the hydraulic motors is supplied via reciprocating proportioners. The reciprocating proportioners are driven by a reciprocating air motor operated under predetermined air pressure. The system operation is characterized in that, under blocked output pressure conditions, the air motor will inherently stall and thereby limit the pressure of the hydraulic oil acting to drive the hydraulic motors, which therefore limits the pumping pressure applied to the reciprocating pumps, and limits the output pressure of the pumped liquid materials.
    Type: Grant
    Filed: July 24, 1980
    Date of Patent: March 19, 1985
    Assignee: Graco Inc.
    Inventors: Lawrence S. Kelly, Dean L. Schaffran, Donald S. Nii