Patents by Inventor Georg Peter Linhart
Georg Peter Linhart 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: 8099830Abstract: A handle arrangement on a vacuum cleaner hose has an inner bushing non-rotatably attached to one end of the hose and is inserted in a handle tube and axially fixed therein such that it can rotate. Electrical leads are guided outwards from the hose and the inner bushing in a radial direction through a wall opening of the handle tube and into the cavity of a handle part. The handle part is firmly connected at both ends to the handle tube. The electrical leads are fixed so as to form a length reserve loop in the cavity. A receiving space is provided on the inner bushing, into which electrical leads from the length reserve loop are shifted when relative rotations take place between the hose and the handle tube. The possible rotation angle is delimited by stops according to the lead length available in the length reserve loop.Type: GrantFiled: July 22, 2008Date of Patent: January 24, 2012Assignee: Truplast Kunststofftechnik GmbHInventors: Georg Peter Linhart, Christian Norbert Linhart
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Patent number: 8006721Abstract: An anti-kink device for hoses with an external corrugated structure, in particular for vacuum cleaner hoses, such hoses comprising at least one external groove-like channel which runs in a helical manner. The anti-kink device is formed by a wire coil made from spring steel which is screwed into the groove-like channel from one hose end and is fixed to the hose end. This anti-kink device is applied over the entire hose length or only partially at points of the hose which are at risk of kinking.Type: GrantFiled: June 12, 2009Date of Patent: August 30, 2011Assignee: Truplast Kunststofftechnik GmbHInventors: Georg Peter Linhart, Christian Norbert Linhart
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Patent number: 7837157Abstract: A kink protector for a line which is led outwardly through a wall opening in a connecting sleeve of a hose or a pipe. The kink protector has a mounting cap which encloses the line, and a support helix which is integral with the cap and surrounds the line and which is resilient in bending. An outlet stub is provided at the connecting sleeve and is connected with the wall opening and into which the mounting cap can be pushed with at least axial fixing of the line in mechanically positive and detenting manner for the line.Type: GrantFiled: September 17, 2008Date of Patent: November 23, 2010Assignee: Truplast Kunststofftechnik GmbHInventors: Georg Peter Linhart, Christian Norbert Linhart
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Patent number: 7805806Abstract: A handle arrangement on a suction hose equipped for spray extraction has a bushing non-rotatably attached to one end of the hose, and is inserted in a handle tube and axially fixed therein such that it can rotate in the tube. An elastic liquid line is guided outwards from the hose and the inner bushing in a radial direction through a wall opening of the handle tube and into the cavity of a handle part. The handle part is firmly connected at both ends to the handle tube. The liquid line is fixed so as to form a length reserve loop in the cavity. A receiving space is provided on the inner bushing, into which the liquid line from the length reserve loop is shifted when relative rotations take place between the hose and the handle tube.Type: GrantFiled: February 10, 2009Date of Patent: October 5, 2010Assignee: Truplast Kunststofftechnik GmbHInventors: Georg Peter Linhart, Christian Norbert Linhart
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Publication number: 20090309353Abstract: An anti-kink device for hoses with an external corrugated structure, in particular for vacuum cleaner hoses, such hoses comprising at least one external groove-like channel which runs in a helical manner. The anti-kink device is formed by a wire coil made from spring steel which is screwed into the groove-like channel from one hose end and is fixed to the hose end. This anti-kink device is applied over the entire hose length or only partially at points of the hose which are at risk of kinking.Type: ApplicationFiled: June 12, 2009Publication date: December 17, 2009Applicant: Truplast Kunststofftechnik GmbHInventors: Georg Peter Linhart, Christian Norbert Linhart
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Publication number: 20090205163Abstract: A handle arrangement on a suction hose equipped for spray extraction has a bushing non-rotatably attached to one end of the hose, and is inserted in a handle tube and axially fixed therein such that it can rotate in the tube. An elastic liquid line is guided outwards from the hose and the inner bushing in a radial direction through a wall opening of the handle tube and into the cavity of a handle part. The handle part is firmly connected at both ends to the handle tube. The liquid line is fixed so as to form a length reserve loop in the cavity. A receiving space is provided on the inner bushing, into which the liquid line from the length reserve loop is shifted when relative rotations take place between the hose and the handle tube.Type: ApplicationFiled: February 10, 2009Publication date: August 20, 2009Inventors: Georg Peter Linhart, Christian Norbert Linhart
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Publication number: 20090078836Abstract: A kink protector for a line which is led outwardly through a wall opening in a connecting sleeve of a hose or a pipe. The kink protector has a mounting cap which encloses the line, and a support helix which is integral with the cap and surrounds the line and which is resilient in bending. An outlet stub is provided at the connecting sleeve and is connected with the wall opening and into which the mounting cap can be pushed with at least axial fixing of the line in mechanically positive and detenting manner for the line.Type: ApplicationFiled: September 17, 2008Publication date: March 26, 2009Inventors: Georg Peter Linhart, Christian Norbert Linhart
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Publication number: 20090031526Abstract: A handle arrangement on a vacuum cleaner hose has an inner bushing non-rotatably attached to one end of the hose and is inserted in a handle tube and axially fixed therein such that it can rotate. Electrical leads are guided outwards from the hose and the inner bushing in a radial direction through a wall opening of the handle tube and into the cavity of a handle part. The handle part is firmly connected at both ends to the handle tube. The electrical leads are fixed so as to form a length reserve loop in the cavity. A receiving space is provided on the inner bushing, into which electrical leads from the length reserve loop are shifted when relative rotations take place between the hose and the handle tube. The possible rotation angle is delimited by stops according to the lead length available in the length reserve loop.Type: ApplicationFiled: July 22, 2008Publication date: February 5, 2009Inventors: Georg Peter Linhart, Christian Norbert Linhart
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Patent number: 6733315Abstract: A vacuum unit cleaner hose having a hose (1), a connection sleeve (4), and a rear connection part (4a) of the sleeve (4) partially engaging into the hose (1) and exhibiting an axial slot (4b) starting from a rearward end of the rear connection part (4a). Electrical conductors (3) are led out of the front section of the rear connection part (4a), wherein the hose (1) does not cover the front section of the rear connection part (4a). A protective envelope (2) for the electric conductors (3) is attached at the inner wall of the hose (1). Flanks of the rear connection part (4a) transition into the projection (4c) formed for the receiving of a coordinated end of the protective envelope (2) as well as closed at the front end. An axial slot (4b) is formed in the connection sleeve (4).Type: GrantFiled: September 10, 2002Date of Patent: May 11, 2004Assignee: Truplast Kunststotttechnik GmbHInventor: Georg Peter Linhart
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Patent number: 6722904Abstract: A vacuum cleaner hose with a connection sleeve includes a hose (1) having an inner wall, a protective envelope (2) for electrical conductors (3) attached at an inner wall of the hose (1), a rear connection part (4a) formed at a connection sleeve (4) and engaging partially into the hose (1), a receiver (4b) extending from the rearward end of the connection sleeve (4) and formed for an insertion of a coordinated end of the protective envelope (2), wherein an end of the receiver (4b) is disposed opposite to an end for insertion and is closed. The receiver (4b) is formed as a tube molded to the inner jacket face of the rear connection part (4). The tube exhibits a first recess (4d) directed rearwardly from the closed end of the tube.Type: GrantFiled: September 10, 2002Date of Patent: April 20, 2004Assignee: Ruplast Kunststofftechnik GmbHInventor: Georg Peter Linhart
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Publication number: 20030073334Abstract: A vacuum unit cleaner hose having a hose (1), a connection sleeve (4), and a rear connection part (4a) of the sleeve (4) partially engaging into the hose (1) and exhibiting an axial slot (4b) starting from a rearward end of the rear connection part (4a). Electrical conductors (3) are led out of the front section of the rear connection part (4a), wherein the hose (1) does not cover the front section of the rear connection part (4a). A protective envelope (2) for the electric conductors (3) is attached at the inner wall of the hose (1). Flanks of the rear connection part (4a) transition into the projection (4c) formed for the receiving of a coordinated end of the protective envelope (2) as well as closed at the front end. An axial slot (4b) is formed in the connection sleeve (4).Type: ApplicationFiled: September 10, 2002Publication date: April 17, 2003Inventor: Georg Peter Linhart
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Publication number: 20030073335Abstract: A vacuum cleaner hose with a connection sleeve includes a hose (1) having an inner wall, a protective envelope (2) for electrical conductors (3) attached at an inner wall of the, hose (1), a rear connection part (4a) formed at a connection sleeve (4) and engaging partially into the hose (1), a receiver (4b) extending from the rearward end of the connection sleeve (4) and formed for an insertion of a coordinated end of the protective envelope (2), wherein an end of the receiver (4b) is disposed opposite to an end for insertion and is closed. The receiver (4b) is formed as a tube molded to the inner jacket face of the rear connection part (4). The tube exhibits a first recess (4d) directed rearwardly from the closed end of the tube.Type: ApplicationFiled: September 10, 2002Publication date: April 17, 2003Inventor: Georg Peter Linhart
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Publication number: 20030062722Abstract: A hose connection comprises a hose (1), an elastic sleeve (2), a connection tube (3) and a stiff ring (4). The hose (1) is made of a thermoplastic material and has a smooth surface on the inside and exhibits helically formed running wave valleys and wave mountains on the outside. The elastic sleeve (2) is fixedly connected to the hose (1) and carried at one end of the hose (1) and has a front end. The connection tube (3) has recesses 3(a). The elastic sleeve (2) engages into the connection tube (3) in the destined position of the elastic sleeve (2). The elastic sleeve (2) is at its front end furnished with a sealing lip (2a) formed for sealing of the sleeve (2) against the connection tube (3). The sleeve (2) is gripped around by the stiff ring (4) axially fixed disposed on the sleeve (2) and made of a thermoplastic material and is axially aligned.Type: ApplicationFiled: August 21, 2002Publication date: April 3, 2003Inventor: Georg Peter Linhart
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Patent number: 6353178Abstract: A vacuum cleaner tube has electrical conductors and a tube having an inner wall and formed spirally on the outside and formed smoothly on the inside and having an end, a helical step disposed at the tube, an end bush having a rear end and plugged into the end of the tube, wherein the end bush exhibits an axial slot having flanks and open at the rear end of the end bush, and locking noses disposed at the end bush. A protective covering is attached at the inner wall of the tube. A projection is formed at the end bush and closed at its front end and formed for receiving the protective covering, wherein the flanks of the axial slot form a transition into the projection. A slip ring support has a longitudinal passing through slot for engaging the tube, wherein the slip ring support is made as a single part. Breakouts are furnished at the slip ring support for an engagement of the locking noses formed at the end bush. A plurality of electrical conductors are disposed in the protective covering.Type: GrantFiled: July 26, 2000Date of Patent: March 5, 2002Assignee: Truplast Kunst Stofftechnik GmbHInventor: Georg Peter Linhart
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Patent number: 6087595Abstract: A connection sleeve for a suction hose is furnished with a protective covering for strain-relieved conductors. The protective covering is attached at an inner jacket face of the suction hose. A first sleeve part engages in part in the suction hose. A recess is furnished in the first sleeve part and a strain-relieving element, guided out of the protective covering, is fixedly positioned in said recess. A second sleeve part, gripping around and encircling the suction hose, covers the recess and the first sleeve part and the second sleeve part are connected to each other. The recess for the strain-relieving element (5) is an annular groove (6). An axial slot (7) extends from an insertion end of the first sleeve part (1). The axial slot (7) passes through a first collar (8), forming a first wall of the annular groove (6), and extends up to a second collar (9), forming a second wall of the annular groove (6).Type: GrantFiled: May 7, 1998Date of Patent: July 11, 2000Assignee: Truplast Kunststofftechnik GmbHInventor: Georg Peter Linhart
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Patent number: 6015298Abstract: A vacuum-cleaner hose with electrical conductors comprises a hose made of a soft thermoplastic material. A support carrier, made out of a harder material than the material of the hose, is attached at one end of the hose for electrical slip rings. One of the electrical conductors is in each case connected to the slip rings. An end socket is inserted into the end of the hose exhibiting the support carrier, is connected to the support carrier, and is made of the same material as the support carrier. The support carrier is made of a socket ring, provided with at least one slip ring, and a sleeve, disposed in front of the socket ring. The sleeve is provided with a continuous axial slot and includes two additional slip rings, and the sleeve is connected form-matchingly to the socket ring and to the end socket. At least one thread turn is formed at an inner jacket face of the sleeve and forms a counter thread for the wave troughs and the wave crests of the hose.Type: GrantFiled: June 9, 1998Date of Patent: January 18, 2000Assignee: Truplast Konststofftechnik GmbHInventor: Georg Peter Linhart