Patents by Inventor Paul D. Stephens

Paul D. Stephens 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: 5347679
    Abstract: A portable stick-type vacuum cleaner includes an elongated housing and a substantially triangular nozzle which is selectively securable to the housing. The nozzle includes a nozzle body having a bottom surface and a top surface. A V-shaped suction opening is located on the bottom surface of the nozzle body. The nozzle body also has a plurality of casters located on its bottom surface. An air outlet member is in fluid connection with the suction opening. The air outlet member includes a sleeve pivotally mounted to the top surface of the nozzle body and a coupling for selective fluid connection with the housing. The coupling is rotatably mounted on the sleeve. A motor is mounted in the housing for effecting a suction of air through the nozzle.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: September 20, 1994
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Craig M. Saunders, Paul D. Stephens, Michael F. Wright
  • Patent number: 5283939
    Abstract: A snap-together vacuum cleaner housing comprises at least three discrete pieces which can be assembled and disassembled without the use of adhesive, fasteners, or tools. A lock ring comprises two semicircles of different radii. The lock ring encircles discrete portions of the housing and joins them together.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: February 8, 1994
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Craig M. Saunders, James J. Kopco, Robert O. Wraight, Paul D. Stephens, Michael F. Wright
  • Patent number: 5269042
    Abstract: A height adjustment system for an upright vacuum cleaner comprises a cam member with a cam surface. The cam member is mounted within a base and includes rollers which facilitate the sliding lateral movement of the cam member within the base. The rollers roll within a channel within the base. Notches are formed in the side walls of the channel and receive a resiliently deformable indexing member which locates and fixes a cam follower at discrete points along the cam surface. A secondary height adjustment system comprises a ledge located on a housing which is attached to a handle. When the handle of the vacuum cleaner is rotated from a use position to an upright locked position, the ledge on the housing displaces a finger which pushes against a fulcrum plate attached to an axle connected to the front wheels of the vacuum cleaner.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: December 14, 1993
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Paul D. Stephens, Michael F. Wright
  • Patent number: 5247720
    Abstract: A suction cleaner includes a floor nozzle and a handle pivotally connected to the floor nozzle. A suction creating device is located in one of the handle and the floor nozzle and a filter bag is secured to the handle. A first passageway leads from the floor nozzle to the filter bag. A first valve member is located in the first air passageway. A cleaning tool hose is secured to the handle. A second air passageway leads from the cleaning tool hose to a filter bag. A second valve member is located in the second air passageway.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: September 28, 1993
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, James J. Kopco, Paul D. Stephens, Michael F. Wright
  • Patent number: 5093956
    Abstract: A snap-together vacuum cleaner housing comprises at least three discrete pieces which can be assembled and disassembled without the use of adhesive, fasteners, or tools. A lock ring comprises two semicircles of different radii. The lock ring encircles discrete portions of the housing and joins them together.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: March 10, 1992
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Craig M. Saunders, James J. Kopco, Robert O. Wraight, Paul D. Stephens, Michael F. Wright
  • Patent number: 5042109
    Abstract: The vacuum cleaner includes a carriage having front and rear support members rotatably carried by the carriage for movably supporting the carriage on a subjacent surface as well as a floor cleaning nozzle generally horizontally disposed adjacent a front support member of the vacuum cleaner. A first movable element is provided on the carriage for selectively adjusting the height of the nozzle in relation to the subjacent surface. A second movable element is positioned on the carriage and is operatively connected to the first movable element for adjusting a position of the first movable element. A third movable element is operatively connected to the second movable element and is also connected on the carriage for adjusting a position of the second movable element. The third movable element includes a rocker pedal which can be adjusted between a plurality of positions.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: August 27, 1991
    Assignee: Royal Appliance Mfg. Co.
    Inventor: Paul D. Stephens
  • Patent number: D322338
    Type: Grant
    Filed: December 13, 1988
    Date of Patent: December 10, 1991
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Craig M. Saunders, Paul D. Stephens, Michael F. Wright, John A. Balch, Jenny L. Baker
  • Patent number: D331991
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: December 22, 1992
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Michael F. Wright, Craig M. Saunders, Paul D. Stephens
  • Patent number: D335941
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: May 25, 1993
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Michael F. Wright, Craig M. Saunders, Paul D. Stephens, Mark E. Cipolla, Richard C. Farone
  • Patent number: D346052
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: April 12, 1994
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Craig M. Saunders, Terry L. Zahuranec, James J. Kopco, Michael F. Wright, Paul D. Stephens, Richard C. Farone