Patents Assigned to Proair GmbH Geratebau
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Patent number: 9526386Abstract: A vacuum cleaner of protection class II is provided with a connection for a suction hose; a drive motor; at least one electrically non-conductive part; a feed line configured to feed static voltage; and a capacitor device provided with a capacitor group with at least one capacitor. For discharging static voltage, the electrically non-conductive part is electrically conductively connected via at least one contact element to the capacitor device. The feed line is connected to the at least one capacitor. The at least one capacitor outputs the voltage to an electrical power network when a certain charge quantity is exceeded. The at least one contact element can be the motor shaft of the drive motor.Type: GrantFiled: February 13, 2015Date of Patent: December 27, 2016Assignee: PROAIR GmbH GerätebauInventor: Paul Roth
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Patent number: 9408512Abstract: A separator for a vacuum cleaner has a cover part from which webs are projecting which are positioned along the circumference of the cover part at a spacing one behind the other with formation of through openings. At least some of the webs are without connection with each other at the end that is facing away from the cover part. The webs are elastically yielding transversely to the longitudinal direction. The webs are positioned in their mounting position with radial pretension on a spider which is fixedly seated on the motor shaft of the vacuum cleaner. Due to centrifugal forces occurring in operation of the vacuum cleaner as a result of the high rotary speed of the motor shaft, the webs of the separator are positioned with their free ends under high force on the spider. The separator is thus reliably entrained by the spider by friction.Type: GrantFiled: March 25, 2014Date of Patent: August 9, 2016Assignee: PROAIR GmbH GerätebauInventor: Paul Roth
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Publication number: 20140283331Abstract: A separator for a vacuum cleaner has a cover part from which webs are projecting which are positioned along the circumference of the cover part at a spacing one behind the other with formation of through openings. At least some of the webs are without connection with each other at the end that is facing away from the cover part. The webs are elastically yielding transversely to the longitudinal direction. The webs are positioned in their mounting position with radial pretension on a spider which is fixedly seated on the motor shaft of the vacuum cleaner. Due to centrifugal forces occurring in operation of the vacuum cleaner as a result of the high rotary speed of the motor shaft, the webs of the separator are positioned with their free ends under high force on the spider. The separator is thus reliably entrained by the spider by friction.Type: ApplicationFiled: March 25, 2014Publication date: September 25, 2014Applicant: PROAIR GmbH GerätebauInventor: Paul Roth
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Patent number: 7018437Abstract: A separator for a wet vacuum cleaner has a bottom and a sidewall connected to the bottom. The sidewall has lamellas delimiting slots, wherein through the slots an air/gas flow enters an interior of the separator, delimited by the bottom and the sidewall, wherein the air/gas flow contains dirt/dust particles and/or water droplets. The lamellas each have at least one radial outer widened section, extending in a rotational direction of the separator, and at least one remaining lamella section, wherein the at least one radial outer widened section and the at least one remaining lamella section delimit together a turbulence chamber, respectively.Type: GrantFiled: November 19, 2003Date of Patent: March 28, 2006Assignee: PROAIR GmbH GerätebauInventors: Paul Roth, Anton Kreis, Helmut Grassinger
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Patent number: 6899747Abstract: A separator for a wet vacuum device has a bottom and a sidewall connected to the bottom. The sidewall has stays defining slots between the stays. An air/gas stream, containing particles to be separated from the air/gas stream, enters the separator through the slots near the bottom, and the particles are separated from the air/gas stream by centrifugal force and are expelled from the separator at a spacing from the bottom through the slots. Between 3 and 45 slots are distributed about the circumference of the sidewall. The slots have a slot depth and a slot width, wherein the slot depth is substantially 0.2 up to 2.5 times as large as the slot width. The rotating separator is arranged above the liquid bath such that it agitates the surface of the liquid bath.Type: GrantFiled: February 27, 2003Date of Patent: May 31, 2005Assignee: Proair GmbH GerätebauInventors: Paul Roth, Helmut Grassinger, Anton Kreis
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Publication number: 20040098958Abstract: A separator for a wet vacuum cleaner has a bottom and a sidewall connected to the bottom. The sidewall has lamellas delimiting slots, wherein through the slots an air/gas flow enters an interior of the separator, delimited by the bottom and the sidewall, wherein the air/gas flow contains dirt/dust particles and/or water droplets. The lamellas each have at least one radial outer widened section, extending in a rotational direction of the separator, and at least one remaining lamella section, wherein the at least one radial outer widened section and the at least one remaining lamella section delimit together a turbulence chamber, respectively.Type: ApplicationFiled: November 19, 2003Publication date: May 27, 2004Applicant: PROAIR GmbH GeratebauInventors: Paul Roth, Anton Kreis, Helmut Grassinger
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Publication number: 20030159580Abstract: A separator for a wet vacuum device has a bottom and a sidewall connected to the bottom. The sidewall has stays defining slots between the stays. An air/gas stream, containing particles to be separated from the air/gas stream, enters the separator through the slots near the bottom, and the particles are separated from the air/gas stream by centrifugal force and are expelled from the separator at a spacing from the bottom through the slots. Between 3 and 45 slots are distributed about the circumference of the sidewall. The slots have a slot depth and a slot width, wherein the slot depth is substantially 0.2 up to 2.5 times as large as the slot width. The rotating separator is arranged above the liquid bath such that it agitates the surface of the liquid bath.Type: ApplicationFiled: February 27, 2003Publication date: August 28, 2003Applicant: PROAIR GMBH GERATEBAUInventors: Paul Roth, Helmut Grassinger, Anton Kreis
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Patent number: 6192551Abstract: A wet cleaning apparatus having at least one outlet is provided. The apparatus has an intake fitting, for a suction air stream, which opens out into a liquid container. An upper housing part is disposed on the liquid container and has disposed therein a motor about which at least part of which flows a coolant air flow. At least one turbulence chamber is provided in which the suction air stream and the coolant air flow meet one another at an angle.Type: GrantFiled: September 18, 1998Date of Patent: February 27, 2001Assignee: PROAIR GmbH GerätebauInventor: Paul Roth
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Patent number: 6131236Abstract: A wet cleaning apparatus to which accessory devices can be attached has a suction blower and a control unit that automatically adjusts the power of the suction blower in accordance with the presence or absence of an accessory device or the operational state of an accessory device.Type: GrantFiled: March 26, 1999Date of Patent: October 17, 2000Assignee: PROAIR GmbH GeratebauInventor: Paul Roth
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Patent number: 6126417Abstract: A conveying device for liquid and gaseous media has a drive unit with a drive shaft. At least one rotating component is connected to the drive shaft. At least one stationary component is coordinated with the at least one rotating component. A separating member for separating the at least one rotating component from the at least one stationary component is provided. The separating member consists of an electrically non-conducting material.Type: GrantFiled: May 5, 1998Date of Patent: October 3, 2000Assignee: PROAIR GmbH GeratebauInventor: Paul Roth
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Patent number: 5752997Abstract: A wet cleaning apparatus having an intake connection and at least one air outlet opening is provided. The apparatus has a blower motor and a container for cleaning liquid. The container is disposed in the immediate vicinity of the motor, either above it, next to it, or around it.Type: GrantFiled: May 3, 1996Date of Patent: May 19, 1998Assignee: Proair GmbH GeratebauInventor: Paul Roth