Patents by Inventor Richard A. Wareham

Richard A. Wareham 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: 6006402
    Abstract: A vacuum cleaner suction nozzle is provided with inner front and rear ducts and a duct cover piece disposed within the agitator chamber. This chamber is formed by a tunnel piece that is at least partly user observable from above the nozzle. The nozzle includes a hood piece which melds with its underbody at, at least, a portion of their juncture. This is occasioned by an offset or undercut formed in one of the hood piece or underbody, whereby the hood piece and underbody join with coplaner outer surfaces.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: December 28, 1999
    Assignee: The Hoover Company
    Inventors: Edgar A. Maurer, Richard A. Wareham, David W. Moine, Kurt D. Harsh, Kenneth L. Symensma
  • Patent number: 5970576
    Abstract: A suction nozzle is provided with a linearly movable, stepped cam which adjusts the height of the suction nozzle by acting against a pivoted wheel carriage. The stepped cam is relatively fixedly positioned by an indexing means including a deflectable arm which is manually deformed to release the fixed indexing and then manipulated in a sideward direction to move the position of the stepped linear cam means.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: October 26, 1999
    Assignee: The Hoover Company
    Inventors: Edgar A. Maurer, Richard A. Wareham, Kurt D. Harsh, Michael W. Crine
  • Patent number: 5943732
    Abstract: A unique valve door mechanism is disclosed for use in a dual chambered utility type vacuum cleaner having two suction inlets whereby the inactive suction inlet may be selectively closed and sealed off from the atmosphere. The valve door is slidingly suspended between guide rails whereby the door may be selectively positioned adjacent the suction inlet to be disabled. Atmospheric pressure is utilized to urge the valve door against the selected inlet opening thereby sealing off the inlet from the atmosphere. The valve may also be in the form of a rotatable, elbow-shaped body having a single plenum. The body may be rotated between at least two positions where the outlet to the plenum is in fluid communication with a wet tank in one position and a dry tank in the other position.
    Type: Grant
    Filed: April 18, 1997
    Date of Patent: August 31, 1999
    Assignee: The Hoover Company
    Inventors: Nick M. Bosyj, Donald R. Bowers, Nicholas Koukourakis, Conway Vincent, Richard A. Wareham, Darwin S. Crouser
  • Patent number: 5644815
    Abstract: A unique valve door mechanism is disclosed for use in a dual chambered utility type vacuum cleaner having two suction inlets whereby the inactive suction inlet may be selectively closed and sealed off from the atmosphere. The valve door is slidingly suspended between guide rails whereby the door may be selectively positioned adjacent the suction inlet to be disabled. Atmospheric pressure is utilized to urge the valve door against the selected inlet opening thereby sealing off the inlet from the atmosphere.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: July 8, 1997
    Assignee: The Hoover Company
    Inventors: Nick M. Bosyj, Donald R. Bowers, Nicholas Koukourakis, Conway Vincent, Richard A. Wareham
  • Patent number: 5608945
    Abstract: The present invention teaches a utility, wet/dry, tank type, vacuum cleaner suitable for domestic use whereby wet or dry material may be alternately vacuumed. Two storage or receiving chambers are provided, preferably positioned one within the other. Two suction inlets, one communicating with the first chamber and the other communicating with the second chamber are provided such that wet and dry material may be selectively directed, by the user, to the appropriate chamber for collection.
    Type: Grant
    Filed: July 5, 1995
    Date of Patent: March 11, 1997
    Assignee: The Hoover Company
    Inventors: Darwin S. Crouser, Nick M. Bosyj, Donald R. Bowers, Nicholas Koukourakis, Richard A. Wareham, Conway Vincent
  • Patent number: D382682
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: August 19, 1997
    Assignee: The Hoover Company
    Inventors: Richard A. Wareham, Lynn A. Frederick
  • Patent number: D384452
    Type: Grant
    Filed: November 25, 1994
    Date of Patent: September 30, 1997
    Assignee: The Hoover Company
    Inventor: Richard A. Wareham
  • Patent number: D386845
    Type: Grant
    Filed: September 23, 1996
    Date of Patent: November 25, 1997
    Assignee: The Hoover Company
    Inventors: Richard A. Wareham, Lynn A. Frederick
  • Patent number: D388915
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: January 6, 1998
    Assignee: The Hoover Company
    Inventor: Richard A. Wareham
  • Patent number: D391702
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: March 3, 1998
    Assignee: The Hoover Company
    Inventors: Richard A. Wareham, David W. Moine
  • Patent number: D407872
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: April 6, 1999
    Assignee: The Hoover Company
    Inventors: Richard A. Wareham, David W. Moine
  • Patent number: D411669
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: June 29, 1999
    Assignee: The Hoover Company
    Inventor: Richard A. Wareham
  • Patent number: D412227
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: July 20, 1999
    Assignee: The Hoover Company
    Inventors: Richard A. Wareham, David W. Moine
  • Patent number: D412379
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: July 27, 1999
    Assignee: The Hoover Company
    Inventors: Ronald J. Stephens, Sidney H. Bradd, Richard A. Wareham
  • Patent number: D412380
    Type: Grant
    Filed: April 16, 1997
    Date of Patent: July 27, 1999
    Assignee: The Hoover Company
    Inventor: Richard A. Wareham
  • Patent number: D425272
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: May 16, 2000
    Assignee: The Hoover Company
    Inventor: Richard A. Wareham
  • Patent number: D426688
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: June 13, 2000
    Assignee: The Hoover Company
    Inventors: David W. Moine, Douglas C. Barker, Lynn A. Frederick, Richard A. Wareham, John D. Essex
  • Patent number: D428223
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: July 11, 2000
    Assignee: The Hoover Company
    Inventors: Richard A. Wareham, David W. Moine
  • Patent number: D431333
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: September 26, 2000
    Assignee: The Hoover Company
    Inventors: Ronald J. Stephens, Sidney H. Bradd, Richard A. Wareham
  • Patent number: D431334
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: September 26, 2000
    Assignee: The Hoover Company
    Inventors: Ronald J. Stephens, Sidney H. Bradd, Richard A. Wareham