Patents by Inventor John F. Sovis

John F. Sovis 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: 5606770
    Abstract: An air path for a vacuum cleaner, such as a stick type or broom type vacuum cleaner includes a first fan shell section having a first end at which is located a suction opening and a second end. A second fan shell section has a first end and a second end at which is located an outlet opening. An air outlet tube is located at the outlet opening of, and is of one piece with, the second fan shell section. The two fan shell sections are secured to each other in order to define a chamber between them. A suction fan is located in the chamber for drawing a suction at the suction opening and directing air through the air outlet tube.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: March 4, 1997
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Paul D. Stephens, Michael F. Wright, Mark E. Cipolla
  • Patent number: 5446943
    Abstract: An air path for a vacuum cleaner, such as a stick type or broom type vacuum cleaner includes a first fan shell section having a first end at which is located a suction opening and a second end. A second fan shell section has a first end and a second end at which is located an outlet opening. An air outlet tube is located at the outlet opening of, and is of one piece with, the second fan shell section. The two fan shell sections are secured to each other in order to define a chamber between them. A suction fan is located in the chamber for drawing a suction at the suction opening and directing air through the air outlet tube.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: September 5, 1995
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Paul D. Stephens, Michael F. Wright, Mark E. Cipolla
  • 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: 5222786
    Abstract: A wheel assembly for a vacuum cleaner includes an axle, a collar, and a wheel. The axle is cylindrical and has inward and outward ends. The inward end is attached to a housing of an associated vacuum cleaner and the outward end has locking projections extending radially outwardly from an axial centerline. The collar has an outward end which includes collar gaps. When the axle is fitted within the collar, the locking projections fit into the collar gaps preventing rotational movement between the collar and the axle. The wheel has a wheel bore therethrough. When the wheel is fitted over the collar and axle, so that the collar and axle fit within the wheel bore, the locking projections snap radially outwardly against an outer surface of the wheel, thereby holding the wheel, collar, and axle together and permitting rotational movement between the wheel and the collar.
    Type: Grant
    Filed: January 10, 1992
    Date of Patent: June 29, 1993
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Michael F. Wright
  • Patent number: 4959885
    Abstract: A convertible vacuum cleaner includes a nozzle base and a motor and filter housing rotatably mounted on the nozzle base. The nozzle base is movable along a floor surface and includes a brush cleaner for mounting a rotatable brush and a first suction passage communicating with the brush chamber at one end and with an exterior periphery of the nozzle base at the other end. The motor and filter housing includes a second suction passage communicating at a first end with the first suction passage second end and at a second end with an exterior periphery of the motor and filter housing. The motor chamber is formed in the motor and filter housing in spaced relation to the second suction passage. A suction chamber is disposed in the motor and filter housing in a spaced manner from the second suction passage and the motor chamber. The suction chamber has an inlet port communicating with the exterior periphery of the motor and filter housing.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: October 2, 1990
    Assignee: Royal Applicance Mfg. Co.
    Inventors: John F. Sovis, Craig M. Saunders, James J. Kopco, Michael F. Wright
  • Patent number: 4918781
    Abstract: A hand vacuum cleaner is provided comprising a lightweight motor housing containing a revolving brush. A bag assembly is selectively separable from the housing and is sealable to the housing with an elastomeric retaining ring including a sealing and retaining bead for reception in a recessed slot area of a housing bag attachment collar. A fan is mounted to the motor on a motor shaft locking surface including a wall portion tapering towards the fan. The shaft is in locking cooperation with a mating fan bore locking surface including a wall portion tapered for close reception of the motor shaft locking surface. A shaft extension is threadedly received on the motor shaft and is urged into engagement against the fan by resistance of a revolving brush operated by a belt received on the shaft extension which continually tightens the shaft extension to the motor shaft and fixes the fan to the motor shaft.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: April 24, 1990
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Robert M. Smith, George H. Bramball
  • Patent number: 4891861
    Abstract: A hand vacuum cleaner is provided comprising a lightweight motor housing containing a revolving brush. A bag assembly is selectively separable from the housing and is sealable to the housing with an elastomeric retaining ring including a sealing and retaining bead for reception in a recessed slot area of a housing bag attachment collar. A fan is mounted to the motor on a motor shaft locking surface including a wall portion tapering towards the fan. The shaft is in locking cooperation with a mating fan bore locking surface including a wall portion tapered for close reception of the motor shaft locking surface. A shaft extension is threadedly received on the motor shaft and is urged into engagement against the fan by resistance of a revolving brush operated by a belt received on the shaft extension which continually tightens the shaft extension to the motor shaft and fixes the fan to the motor shaft.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: January 9, 1990
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
  • Patent number: 4800614
    Abstract: A disposable bag filters dirt particles and the like from exhaust air of a hand-held vacuum cleaner. The motor housing of the vacuum cleaner receives a conventional reusable bag thereon and an adaptor facilitates changeover of existing vacuum cleaners to accommodate the disposable bag. A reinforcing member is provided on the disposable bag and is dimensioned for a friction fit with the adaptor. Another preferred embodiment incorporates a seal member into the assembly to enhance the sealing integrity between the adaptor and disposable bag.
    Type: Grant
    Filed: April 30, 1987
    Date of Patent: January 31, 1989
    Assignee: Royal Appliance Mfg. Co.
    Inventors: James J. Kopco, John F. Sovis
  • Patent number: 4791699
    Abstract: A hand vacuum cleaner is provided comprising a lightweight motor housing containing a revolving brush. A bag assembly is selectively separable from the housing and is sealable to the housing with an elastomeric retaining ring including a sealing and retaining bead for reception in a recessed slot area of a housing bag attachment collar. A fan is mounted to the motor on a motor shaft locking surface including a wall portion tapering towards the fan. The shaft is in locking cooperation with a mating fan bore locking surface including a wall portion tapered for close reception of the motor shaft locking surface. A shaft extension is threadedly received on the motor shaft and is urged into engagement against the fan by resistance of a revolving brush operated by a belt received on the shaft extension which continually tightens the shaft extension to the motor shaft and fixes the fan to the motor shaft.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: December 20, 1988
    Assignee: Royal Appliance Manufacturing Co.
    Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
  • Patent number: 4788740
    Abstract: A hand vacuum cleaner is provided comprising a lightweight motor housing containing a revolving brush. A bag assembly is selectively separable from the housing and is sealable to the housing with an elastomeric retaining ring including a sealing and retaining bead for reception in a recessed slot area of a housing bag attachment collar. A fan is mounted to the motor on a motor shaft locking surface including a wall portion tapering towards the fan. The shaft is in locking cooperation with a mating fan bore locking surface including a wall portion tapered for close reception of the motor shaft locking surface. A shaft extension is threadedly received on the motor shaft and is urged into engagement against the fan by resistance of a revolving brush operated by a belt received on the shaft extension which continually tightens the shaft extension to the motor shaft and fixes the fan to the motor shaft.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: December 6, 1988
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
  • Patent number: 4741070
    Abstract: A hand vacuum cleaner is provided comprising a lightweight motor housing containing a revolving brush. A bag assembly is selectively separable from the housing and is sealable to the housing with an elastomeric retaining ring including a sealing and retaining bead for reception in a recessed slot area of a housing bag attachment collar. A fan is mounted to the motor on a motor shaft locking surface including a wall portion tapering towards the fan. The shaft is in locking cooperation with a mating fan bore locking surface including a wall portion tapered for close reception of the motor shaft locking surface. A shaft extension is threadedly received on the motor shaft and is urged into engagement against the fan by resistance of a revolving brush operated by a belt received on the shaft extension which continually tightens the shaft extension to the motor shaft and fixes the fan to the motor shaft.
    Type: Grant
    Filed: January 5, 1987
    Date of Patent: May 3, 1988
    Assignee: Royal Appliance Manufacturing Co.
    Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
  • Patent number: 4731898
    Abstract: An electric vacuum cleaner includes a rotating brush driven by an elastomeric belt coupled to a motor spaced from the brush. Jamming of the brush bearings, wear of the belt, separation of the belt from the drive shaft, or breaking of the belt hinders or prevents rotation of the brush. A brush speed indicator provides a first signal rerpesentative of the rotational movement of the brush and a second means is adapted to receive the first signal and generate a second signal in response thereto. The second signal is preferably an electrical current and is transmitted to power an indicator such as an LED. The brush speed indicator also is used to sense motor performance by diagnosing motor drop-off.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: March 22, 1988
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Michael F. Wright, Scott B. Richards, Abe Zeeway
  • Patent number: D309204
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: July 10, 1990
    Assignee: Royal Appliance Manufacturing Co.
    Inventors: John F. Sovis, James J. Kopco, Jeffrey M. Kalman, Craig M. Saunders
  • Patent number: D309807
    Type: Grant
    Filed: September 22, 1987
    Date of Patent: August 7, 1990
    Assignee: Royal Appliance Manufacturing Co.
    Inventors: John F. Sovis, James J. Kopco, Jeffrey M. Kalman, Craig M. Saunders
  • Patent number: D319517
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: August 27, 1991
    Inventors: John F. Sovis, Craig M. Saunders, Michael F. Wright, James J. Kopco
  • 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: D359604
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: June 20, 1995
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Michael F. Wright, Paul D. Stephens, Craig M. Saunders, Richard C. Farone, Karen P. Stephenson, Jeffrey J. Malish
  • Patent number: D373862
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: September 17, 1996
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Paul D. Stephens, Craig M. Saunders, Michael F. Wright, Richard C. Farone, John F. Sovis
  • Patent number: D384448
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: September 30, 1997
    Assignee: Royal Appliance Mfg. Co.
    Inventors: Paul D. Stephens, Craig M. Saunders, Michael F. Wright, Richard C. Farone, John F. Sovis
  • Patent number: D405929
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: February 16, 1999
    Assignee: Royal Appliance Mfg. Co.
    Inventors: John F. Sovis, Michael F. Wright, Paul D. Stephens, Craig M. Saunders, Richard C. Farone, Karen P. Stephenson, Jeffrey J. Malish