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).
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Patent number: 5606770Abstract: 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: GrantFiled: May 5, 1995Date of Patent: March 4, 1997Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Paul D. Stephens, Michael F. Wright, Mark E. Cipolla
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Patent number: 5446943Abstract: 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: GrantFiled: January 7, 1993Date of Patent: September 5, 1995Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Paul D. Stephens, Michael F. Wright, Mark E. Cipolla
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Patent number: 5247720Abstract: 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: GrantFiled: January 10, 1992Date of Patent: September 28, 1993Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, James J. Kopco, Paul D. Stephens, Michael F. Wright
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Patent number: 5222786Abstract: 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: GrantFiled: January 10, 1992Date of Patent: June 29, 1993Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Michael F. Wright
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Patent number: 4959885Abstract: 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: GrantFiled: January 12, 1990Date of Patent: October 2, 1990Assignee: Royal Applicance Mfg. Co.Inventors: John F. Sovis, Craig M. Saunders, James J. Kopco, Michael F. Wright
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Patent number: 4918781Abstract: 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: GrantFiled: March 31, 1989Date of Patent: April 24, 1990Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Robert M. Smith, George H. Bramball
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Patent number: 4891861Abstract: 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: GrantFiled: February 9, 1988Date of Patent: January 9, 1990Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
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Patent number: 4800614Abstract: 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: GrantFiled: April 30, 1987Date of Patent: January 31, 1989Assignee: Royal Appliance Mfg. Co.Inventors: James J. Kopco, John F. Sovis
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Patent number: 4791699Abstract: 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: GrantFiled: June 24, 1986Date of Patent: December 20, 1988Assignee: Royal Appliance Manufacturing Co.Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
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Patent number: 4788740Abstract: 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: GrantFiled: July 28, 1987Date of Patent: December 6, 1988Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
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Patent number: 4741070Abstract: 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: GrantFiled: January 5, 1987Date of Patent: May 3, 1988Assignee: Royal Appliance Manufacturing Co.Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
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Patent number: 4731898Abstract: 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: GrantFiled: September 5, 1986Date of Patent: March 22, 1988Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Michael F. Wright, Scott B. Richards, Abe Zeeway
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Patent number: D309204Type: GrantFiled: September 22, 1987Date of Patent: July 10, 1990Assignee: Royal Appliance Manufacturing Co.Inventors: John F. Sovis, James J. Kopco, Jeffrey M. Kalman, Craig M. Saunders
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Patent number: D309807Type: GrantFiled: September 22, 1987Date of Patent: August 7, 1990Assignee: Royal Appliance Manufacturing Co.Inventors: John F. Sovis, James J. Kopco, Jeffrey M. Kalman, Craig M. Saunders
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Patent number: D319517Type: GrantFiled: November 27, 1989Date of Patent: August 27, 1991Inventors: John F. Sovis, Craig M. Saunders, Michael F. Wright, James J. Kopco
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Patent number: D322338Type: GrantFiled: December 13, 1988Date of Patent: December 10, 1991Assignee: Royal Appliance Mfg. Co.Inventors: John F. Sovis, Craig M. Saunders, Paul D. Stephens, Michael F. Wright, John A. Balch, Jenny L. Baker
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Patent number: D359604Type: GrantFiled: January 8, 1993Date of Patent: June 20, 1995Assignee: 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
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Patent number: D373862Type: GrantFiled: January 6, 1994Date of Patent: September 17, 1996Assignee: Royal Appliance Mfg. Co.Inventors: Paul D. Stephens, Craig M. Saunders, Michael F. Wright, Richard C. Farone, John F. Sovis
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Patent number: D384448Type: GrantFiled: May 8, 1995Date of Patent: September 30, 1997Assignee: Royal Appliance Mfg. Co.Inventors: Paul D. Stephens, Craig M. Saunders, Michael F. Wright, Richard C. Farone, John F. Sovis
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Patent number: D405929Type: GrantFiled: December 15, 1994Date of Patent: February 16, 1999Assignee: 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