Patents Assigned to Royal Appliance Manufacturing Co.
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Publication number: 20120042900Abstract: The present invention generally relates to a biodegradable lubricating wipe, such as wet wipes. The wet wipes typically being fibrous sheet materials, pre-moistened with a solution for improved lubrication and/or protection of an area. In one embodiment the solution is comprised of a bio-based lubricant, a bio-based solvent and water. In one embodiment, the solution is comprised of mineral spirits and refined soybean oil. In another embodiment the solution is comprised of soy methyl ester and refined soybean oil. In yet another embodiment, the fibrous sheet material of the invention is biodegradable and the solution portion breaks down into a vaporizing component and a biodegradable carrier portion.Type: ApplicationFiled: October 26, 2011Publication date: February 23, 2012Applicant: TECHTRONIC FLOOR CARE TECHNOLOGY LTD. ROYAL APPLIANCE MANUFACTURING CO.Inventor: Cathy Horton
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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: 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: 4730362Abstract: 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: March 15, 1988Assignee: Royal Appliance Manufacturing Co.Inventors: John F. Sovis, Robert M. Smith, George H. Bramhall
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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