Patents by Inventor Paul T. Mueller
Paul T. Mueller 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).
-
Patent number: 7921548Abstract: A method of manufacturing a heater having a heating element, an insulator and a spring is disclosed. The method includes forming a spring from an annealed superalloy material, heat treating the spring after forming, positioning the heating element in contact with the insulator, and biasedly engaging the spring with the insulator to maintain contact between the insulator and the heating element.Type: GrantFiled: August 24, 2006Date of Patent: April 12, 2011Assignee: Phillips & Temro Industries Inc.Inventor: Paul T. Mueller
-
Publication number: 20080047944Abstract: A heater includes an electrically conducting heating element, an insulator and a spring urging the insulator into contact with the heating element. The spring is formed from a superalloy and is operable to output a substantially constant force at a predetermined deflection up to approximately 650° C.Type: ApplicationFiled: August 24, 2006Publication date: February 28, 2008Inventor: Paul T. Mueller
-
Patent number: 6519808Abstract: A squeegee assembly is allowed to float on the floor surface by first, second and third linkage arms having first ends pivotably mounted to the chassis and second ends pivotably mounted to a mount for the squeegee assembly and allowing movement in more than one plane. The squeegee assembly is maintained at a generally constant angle independent of the pivotable movement of the linkage arms, with the generally constant angle being variable by adjusting the length of the third linkage arm. First and second extension springs have first ends attached to the chassis and have second ends attached to the mount at differing spacing than the first ends to cause the squeegee assembly to center the squeegee assembly relative to the chassis. In the preferred form, the ends of the extension springs attached to the chassis are vertically below the ends of the extension springs attached to the mount of the squeegee assembly to bias the squeegee assembly towards the floor surface.Type: GrantFiled: September 28, 2001Date of Patent: February 18, 2003Assignee: Nilfisk-Advance, Inc.Inventors: Donald J. Legatt, Paul T. Mueller, Wolfgang C. Lehmann, Galen Swenson, Patrick Enzler
-
Publication number: 20020148068Abstract: A riding floor scrubber (10) is disclosed having a relatively narrow cleaning width for passing through relatively narrow passages such as conventional doorways. The riding floor scrubber (10) includes a recovery tank (16) that is vertically and laterally arranged and removably attached to the back of a clean solution tank (14). The clean solution tank (14) includes spaced parallel side portions (26, 28) and the recovery tank (16) extends between the rear ends of the side portions (26, 28). The recovery tank (16) is secured by first and second brackets (42) that extend into recesses (44) on the clean solution tank (14), with the bottom of the recovery tank (16) including a lip portion (46) resting on a metal plate (20) of a chassis (18), with a battery pack (52) being supported on the plate (20) between the side portions (26, 28) of the clean solution tank (14).Type: ApplicationFiled: June 3, 2002Publication date: October 17, 2002Inventors: Donald J. Legatt, Paul T. Mueller, Wolfgang C. Lehmann, Galen Swenson, Patrick Enzler
-
Patent number: 6442789Abstract: A riding floor scrubber (10) is disclosed having a relatively narrow cleaning width for passing through relatively narrow passages such as conventional doorways. The riding floor scrubber (10) includes a recovery tank (16) that is vertically and laterally arranged and removably attached to the back of a clean solution tank (14). The clean solution tank (14) includes spaced parallel side portions (26, 28) and the recovery tank (16) extends between the rear ends of the side portions (26, 28). The recovery tank (16) is secured by first and second brackets (42) that extend into recesses (44) on the clean solution tank (14), with the bottom of the recovery tank (16) including a lip portion (46) resting on a metal plate (20) of a chassis (18), with a battery pack (52) being supported on the plate (20) between the side portions (26, 28) of the clean solution tank (14).Type: GrantFiled: December 28, 2001Date of Patent: September 3, 2002Assignee: Nilfisk-Advance, Inc.Inventors: Donald J. Legatt, Paul T. Mueller, Wolfgang C. Lehmann
-
Patent number: 6397429Abstract: A riding floor scrubber (10) is disclosed having a relatively narrow cleaning width for passing through relatively narrow passages such as conventional doorways. The riding floor scrubber (10) includes a recovery tank (16) that is vertically and laterally arranged and removably attached to the back of a clean solution tank (14). The clean solution tank (14) includes spaced parallel side portions (26, 28) and the recovery tank (16) extends between the rear ends of the side portions (26, 28). The recovery tank (16) is secured by first and second brackets (42) that extend into recesses (44) on the clean solution tank (14), with the bottom of the recovery tank (16) including a lip portion (46) resting on a metal plate (20) of a chassis (18), with a battery pack (52) being supported on the plate (20) between the side portions (26, 28) of the clean solution tank (14).Type: GrantFiled: June 30, 2000Date of Patent: June 4, 2002Assignee: Nilfisk-Advance, Inc.Inventors: Donald J. Legatt, Paul T. Mueller, Wolfgang C. Lehmann, Galen Swenson, Patrick Enzler
-
Publication number: 20020050020Abstract: A riding floor scrubber (10) is disclosed having a relatively narrow cleaning width for passing through relatively narrow passages such as conventional doorways. The riding floor scrubber (10) includes a recovery tank (16) that is vertically and laterally arranged and removably attached to the back of a clean solution tank (14). The clean solution tank (14) includes spaced parallel side portions (26, 28) and the recovery tank (16) extends between the rear ends of the side portions (26, 28). The recovery tank (16) is secured by first and second brackets (42) that extend into recesses (44) on the clean solution tank (14), with the bottom of the recovery tank (16) including a lip portion (46) resting on a metal plate (20) of a chassis (18), with a battery pack (52) being supported on the plate (20) between the side portions (26, 28) of the clean solution tank (14).Type: ApplicationFiled: December 28, 2001Publication date: May 2, 2002Inventors: Donald J. Legatt, Paul T. Mueller, Wolfgang C. Lehmann
-
Publication number: 20020007529Abstract: A riding floor scrubber (10) is disclosed having a relatively narrow cleaning width for passing through relatively narrow passages such as conventional doorways. The riding floor scrubber (10) includes a recovery tank (16) that is vertically and laterally arranged and removably attached to the back of a clean solution tank (14). The clean solution tank (14) includes spaced parallel side portions (26, 28) and the recovery tank (16) extends between the rear ends of the side portions (26, 28). The recovery tank (16) is secured by first and second brackets (42) that extend into recesses (44) on the clean solution tank (14), with the bottom of the recovery tank (16) including a lip portion (46) resting on a metal plate (20) of a chassis (18), with a battery pack (52) being supported on the plate (20) between the side portions (26, 28) of the clean solution tank (14).Type: ApplicationFiled: September 28, 2001Publication date: January 24, 2002Inventors: Donald J. Legatt, Paul T. Mueller, Wolfgang C. Lehmann, Galen Swenson, Patrick Enzler