Patents Assigned to National Union Electric
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Patent number: 5170561Abstract: A hub attachment for a rotating drive shaft of a hand-held, portable string cutter for grass and weeds having a centrally located cylindrical anchor lug for a nylon cutting line which is held in a retainer line anchor that is in turn positioned in the semi-cylindrical cavity of the hub attachment. The retainer line anchor is provided with a latching tab that can be rotated from an unlatched position to a position in which the tab is removably attached to the hub.Type: GrantFiled: March 4, 1991Date of Patent: December 15, 1992Assignee: National Union Electric CorporationInventor: Arnold L. Sepke
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Patent number: 4777691Abstract: A cylindrical motor driven brush for a vacuum cleaner or the like having a hollow outer cylinder and a plastic bristle tube assembly for insertion in the outer cylindrical tube. The insert tube is provided with a helical mounting strip with brush bristles thereon which is inserted through a correspondingly shaped slot in said outer cylindrical tube.Type: GrantFiled: October 20, 1986Date of Patent: October 18, 1988Assignee: National Union Electric CorporationInventors: Clark S. Richmond, David A. Erickson
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Patent number: 4748713Abstract: An electric vacuum cleaner has a floor engaging unit, a generally vertically extending handle assembly pivotally affixed to the rear of the floor engaging unit, and a porous bag assembly mounted to the front of the handle assembly. The handle assembly is hollow to direct dust-laden air from the floor engaging unit to the bag assembly. A bottom plate, under the brush roll, has notches at its edges to enhance edge cleaning, and front wheels for the cleaner. Ridges are provided in the floor engaging unit to prevent inproper assembly of the drive belt. The handle assembly is resiliently biased upwardly, and a release is provided thereon to enable relaxation of forces on the porous bag of the porous bag assembly, to facilitate changing of the bag.Type: GrantFiled: October 6, 1986Date of Patent: June 7, 1988Assignee: National Union ElectricInventors: Arnold L. Sepke, Leonard Hampton, Samuel E. Hohulin
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Patent number: 4742652Abstract: A high speed floor burnishing machine in which fine particles generated by the burnishing action are confined, having a burnishing disc which is completely enclosed in a housing. The housing has a peripheral domed flange terminating in a sponge rubber skirt in contact with the floor, and is mounted to float in response to unevenness in the floor level. The weight of the housing compresses the skirt to the extent of 0.19 to 0.25 pounds per linear inch of skirt circumference to seal the enclosure. In one form of the invention the housing floats on a pair of sleeves surrounding bolts screwed into the base of the machine. In another form the housing is suspended from a flexible diaphragm surrounding the drive shaft.Type: GrantFiled: April 20, 1987Date of Patent: May 10, 1988Assignees: ServiceMaster Co L.P., National Union Electric CorporationInventors: Bernard M. Cannan, Richard C. Mulhall, Fredrick B. Brown, Martin E. Wiese
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Patent number: 4701975Abstract: An electric vacuum cleaner has a floor engaging unit, a generally vertically extending handle assembly pivotally affixed to the rear of the floor engaging unit, and a porous bag assembly mounted to the front of the handle assembly. The handle assembly is hollow to direct dust-laden air from the floor engaging unit to the bag assembly. A bottom plate, under the brush roll, has notches at its edges to enhance edge cleaning, and front wheels for the cleaner. Ridges are provided in the floor engaging unit to prevent improper assembly of the drive belt. The handle assembly is resiliently biased upwardly, and a release is provided thereon to enable relaxation of forces on the porous bag of the porous bag assembly, to facilitate changing of the bag.Type: GrantFiled: March 10, 1986Date of Patent: October 27, 1987Assignee: National Union Electric Corp.Inventors: Leonard Hampton, Samuel E. Hohulin
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Patent number: 4665582Abstract: A lightweight broom having a rechargeable battery powered vacuum pump and a mounting assembly for pivotally mounting a nozzle. The mounting assembly and power assembly are spaced apart on a frame carrying both assemblies, and a filter bag arrangement is removably received therebetween. The filter bag arrangement includes a canister adapted to removably fit on a frame between the mounting assembly and the power assembly.Type: GrantFiled: February 22, 1985Date of Patent: May 19, 1987Assignee: National Union Electric Corp.Inventors: Clark S. Richmond, Joyce K. Thomas, Samuel E. Hohulin
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Patent number: 4648149Abstract: An electric vacuum cleaner has a floor engaging unit, a generally vertically extending handle assembly pivotally affixed to the rear of the floor engaging unit, and a porous bag assembly mounted to the front of the handle assembly. The handle assembly is hollow to direct dust-laden air from the floor engaging unit to the bag assembly. A bottom plate, under the brush roll, has notches at its edges to enhance edge cleaning, and front wheels for the cleaner. Ridges are provided in the floor engaging unit to prevent improper assembly of the drive belt. The handle assembly is resiliently biased upwardly, and a release is provided thereon to enable relaxation of forces on the porous bag of the porous bag assembly, to facilitate changing of the bag.Type: GrantFiled: March 10, 1986Date of Patent: March 10, 1987Assignee: National Union Electric Corp.Inventors: Leonard Hampton, Samuel E. Hohulin
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Patent number: 4621390Abstract: An electric vacuum cleaner has a floor engaging unit, a generally vertically extending handle assembly pivotally affixed to the rear of the floor engaging unit, and a porous bag assembly mounted to the front of the handle assembly. The handle assembly is hollow to direct dust-laden air from the floor engaging unit to the bag assembly. A bottom plate, under the brush roll, has notches at its edges to enhance edge cleaning, and front wheels for the cleaner. Ridges are provided in the floor engaging unit to prevent improper assembly of the drive belt. The handle assembly is resiliently biased upwardly, and a release is provided thereon to enable relaxation of forces on the porous bag of the porous bag assembly, to facilitate changing of the bag.Type: GrantFiled: October 9, 1984Date of Patent: November 11, 1986Assignee: National Union Electric CorporationInventors: Leonard Hampton, Samuel E. Hohulin
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Patent number: 4392271Abstract: An electric vacuum cleaner has a generally opaque housing enclosing a bruch roller rotatable about a horizontal axis, a motor, and a belt or the like extending from the motor to a pulley on or affixed to the brush roller, for driving the brush roller. A transparent window is provided in the top of the housing and aligned with the belt, and highly contrasting markings are provided on the belt, thereby to enable an operator to determine, viewing the belt through the window, the moving condition of the belt.Type: GrantFiled: September 21, 1981Date of Patent: July 12, 1983Assignee: National Union Electric CorporationInventor: Arnold L. Sepke
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Patent number: 4376322Abstract: A suction cleaner capable of rapid conversion for either on-the-floor or above-the-floor cleaning, is disclosed. The cleaner includes an elongated housing arranged in a generally upright manner and having an elongated, upwardly extending handle at the rear side thereof. A floor nozzle is connected to the lower end of the housing so that the latter "floats" on the surface of a rug or carpet being cleaned. A suction control valve assembly is mounted in a cavity in the rear of the housing so as to be easily removable therefrom. The valve assembly is connected to conduit means extending between a subatmospheric pressure filtering chamber in the housing and the floor nozzle. An auxiliary suction inlet communicates with the filtering chamber, upstream from the suction valve assembly, and one end of an auxiliary suction hose is permanently connected to the auxiliary inlet.Type: GrantFiled: September 25, 1980Date of Patent: March 15, 1983Assignee: National Union Electric CorporationInventors: Scott N. Lockhart, Samuel E. Hohulin, Joseph F. Brooks, deceased
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Patent number: 4369346Abstract: A microwave baking utensil comprises a unitary body of a porous ceramic material having a cooking surface on its upper side, and pattern of a compound of a Group III, IV or V material ion implanted in its lower support surface. The ion implanted material has an n-type impurity, and a p-type impurity therein.Type: GrantFiled: June 20, 1979Date of Patent: January 18, 1983Assignee: National Union Electric CorporationInventors: Bill J. Hart, Billy E. Smith, Maverine H. Short
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Patent number: D268129Type: GrantFiled: May 19, 1980Date of Patent: March 1, 1983Assignee: National Union Electric CorporationInventor: Nicholas Zuback
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Patent number: D276944Type: GrantFiled: August 25, 1982Date of Patent: December 25, 1984Assignee: National Union Electric CorporationInventors: Kenneth R. Parker, Samuel E. Hohulin
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Patent number: D277038Type: GrantFiled: August 25, 1982Date of Patent: January 1, 1985Assignee: National Union Electric CorporationInventors: Kenneth R. Parker, Samuel E. Hohulin
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Patent number: D277517Type: GrantFiled: March 12, 1982Date of Patent: February 5, 1985Assignee: National Union Electric CorporationInventors: Martin Wiese, Thomas E. Shearer, Dexter K. Lehman
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Patent number: D283064Type: GrantFiled: March 16, 1983Date of Patent: March 18, 1986Assignee: National Union Electric CorporationInventors: Joyce K. Thomas, Samuel E. Hohulin
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Patent number: D288971Type: GrantFiled: April 11, 1984Date of Patent: March 24, 1987Assignee: National Union Electric CorporationInventors: Samuel E. Hohulin, Joyce K. Thomas
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Patent number: D290895Type: GrantFiled: February 22, 1985Date of Patent: July 14, 1987Assignee: National Union Electric CorporationInventors: Joyce K. Thomas, Samuel E. Hohulin
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Patent number: D313293Type: GrantFiled: May 8, 1989Date of Patent: December 25, 1990Assignee: National Union Electric CorporationInventors: Samuel E. Hohulin, Kenneth Parker
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Patent number: D315816Type: GrantFiled: July 27, 1989Date of Patent: March 26, 1991Assignee: National Union Electric CorporationInventors: Marco Ferrari, Samuel E. Hohulin