Patents by Inventor Dean Rohn
Dean Rohn 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: 6361587Abstract: A vacuum cleaner assembly comprising a main housing, a primary filter system, and a secondary filter system. The main housing includes an inlet and an outlet. The primary filter system filters the air prior to being exhausted outwardly through the outlet. The secondary filter system is placed in downstream airflow from the primary filter system and provides additional filtering of the air prior to being exhausted to atmosphere.Type: GrantFiled: December 22, 2000Date of Patent: March 26, 2002Assignee: Rexair, Inc.Inventors: Dean Rohn, Steven Ray Selewski, William R. Daws
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Patent number: 6290761Abstract: A vacuum cleaner assembly includes a main housing) having an inlet, a recess and an outlet disposed within the recess. A water bath filter is coupled to the main housing and disclosed between the inlet and the single outlet. The water bath filter is for filtering the air prior to exhausting the air outwardly through the outlet. A second filter is removably disposed adjacent said main housing single outlet within the main housing recess.Type: GrantFiled: December 7, 2000Date of Patent: September 18, 2001Assignee: Rexair, Inc.Inventors: Dean Rohn, John J. Alberts, III, Alan Joseph Krebs, Roy Oliver Erickson
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Publication number: 20010015132Abstract: A vacuum cleaner assembly (10) comprising a main housing (12) having an inlet (14) and an outlet (16). A motor (17a) is disposed within the main housing (12) between the inlet (14) and the outlet (16) for providing motive force to a cooling fan (17b), a blower (17c), and a separator (22). The cooling fan (17b) is mounted within the main housing (12) above the motor (17a) to circulate cooling air around the motor (17a). The blower (17c) is mounted within the main housing (12) below the motor (17a) for drawing air into the inlet (14) and exhausting air outwardly through the outlet (16). The separator (22) is mounted below the blower (17c) for circulating the air and water bath (20) within a water bath pan (36) and provides, in combination with the water bath (20), a primary filter for filtering the air prior to exhausting the air outwardly toward the outlet (16) of the vacuum cleaner to atmosphere.Type: ApplicationFiled: December 22, 2000Publication date: August 23, 2001Applicant: REXAIR, INC.Inventors: Dean Rohn, Steven Ray Selewski, William R. Daws
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Publication number: 20010000196Abstract: A vacuum cleaner assembly (10) comprising a main housing (12) having an inlet (14) and an outlet (16). A motor (17a) is disposed within the main housing (12) between the inlet (14) and the outlet (16) for providing motive force to a cooling fan (17b), a blower (17c), and a separator (22). The cooling fan (17b) is mounted within the main housing (12) above the motor (17a) to circulate cooling air around the motor (17a). The blower (17c) is mounted within the main housing (12) below the motor (17a) for drawing air into the inlet (14) and exhausting air outwardly through the outlet (16). The separator (22) is mounted below the blower (17c) for circulating the air and water bath (20) within a water bath pan (36) and providing, in combination with the water bath (20), a primary filter for filtering the air prior to exhausting the air outwardly through the outlet (16).Type: ApplicationFiled: December 7, 2000Publication date: April 12, 2001Applicant: REXAIR, INC.Inventors: Dean Rohn, John J. Alberts, Alan Joseph Krebs, Roy Oliver Erickson, Loretta Ann Erickson
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Patent number: 6174350Abstract: A vacuum cleaner assembly (10) includes a main housing (12) having an inlet (14) and an outlet (16). A motor (17a) is disposed within the main housing (12) for providing motive force to a cooling fan (17b), a blower (17c), and a separator (22). The separator (22) circulates the air and water bath (20) within a water bath pan (36) and provides, in combination with the water bath (20), a primary filter for filtering the air. A second filter assembly (24) is also provided preferably including a high efficiency filter (100 or 100a), or HEPA rated filter, for filtering microscopic dust and dirt particles that escape the separator (22) and water bath (20) and is disposed after both the water bath (20) and the separator (22) for additional filtering of the air. Alternatively, it may be a non-HEPA rated filter (101).Type: GrantFiled: April 29, 1999Date of Patent: January 16, 2001Assignee: Rexair, Inc.Inventors: Dean Rohn, Steven Ray Selewski, William R. Daws
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Patent number: 6162287Abstract: A vacuum cleaner assembly (10) is disclosed that includes a main housing (12) having an inlet (14) and an outlet (16). A motor (17a) is disposed within the main housing (12) between the inlet (14) and the outlet (16) for providing motive force to a cooling fan (17b), a blower (17c), and a separator (22). The cooling fan (17b) is mounted within the main housing (12) above the motor (17a) to circulate cooling air around the motor (17a). The blower (17c) is mounted within the main housing (12) below the motor (17a) for drawing air into the inlet (14) and exhausting air outwardly through the outlet (16). The separator (22) is mounted below the blower (17c) for circulating the air and water bath (20) within a water bath pan (36) and providing, in combination with the water bath (20), a primary filter for filtering the air prior to exhausting the air outwardly through the outlet (16).Type: GrantFiled: April 23, 1999Date of Patent: December 19, 2000Assignee: Rexair, Inc.Inventors: Dean Rohn, John J. Alberts, III, Alan Joseph Krebs, Roy Oliver Erickson, deceased
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Patent number: 5902386Abstract: A vacuum cleaner assembly having a separator of reduced dimensions. The separator is operated at preferably between about 20,000 rpm-30,000 rpm and includes a reduced number of slots formed therein. A labyrinth sealing plate and fan adapter are secured to an upper end of the separator to prevent water and dust and dirt particles from bypassing the separator during operation. The separator is preferably spaced from about 1.0 inch to about 6 inches above the upper surface of the liquid in a liquid reservoir of the vacuum cleaner assembly with which the separator is used. The separator, because of its reduced dimensions and weight, is able to be driven with a small conventional, and less costly and less powerful motor at a higher speed than previously designed separators without suffering breakage. The higher speed of 20,000-30,000 rpm helps to prevent the airflow through the separator from being impeded because of the reduced number of slots.Type: GrantFiled: November 10, 1997Date of Patent: May 11, 1999Assignee: Rexair, Inc.Inventors: Eric Gustafson, Dean Rohn, Craig Cummins, Skip Erickson, Jeffrey R. Kassien, Michael R. Lovelace, Jr.