Patents by Inventor Hakan Pinzani
Hakan Pinzani 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: 11919199Abstract: A cutting and dust or slurry collecting assembly that comprises: a) a circular saw blade (4) b) a blade guard (5) c) a cover device (6), and the cover device (6) has a front end (31), a rear end (32), a top surface (34), a bottom surface (36), elongated sidewalls (35), and a longitudinal passage (45,46) for the saw blade, d) the blade guard (5) and the cover device (6) being pivotally connected or connectable to one another via a hinge (40) in or adjacent to a lower rear corner of the blade guard (5), such that the cover device and the blade guard can be turned in relation to each other, e) a discharge member (52) is provided at the rear of said hinge and has an outlet (58) which can be connected to a vacuum source, f) a connection member (12) connects the discharge member (52) with at least one of the longitudinal passage (45, 46) and the cut created rear of the longitudinal passage, g) that the direction of rotation of the saw blade (4) is such that a circumferential part of the blade which has passed beyonType: GrantFiled: April 26, 2017Date of Patent: March 5, 2024Assignee: HUSQVARNA ABInventors: Pär Carlsson, Håkan Pinzani, Paulo Varella
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Publication number: 20220143870Abstract: A handheld cut-off saw (300) for cutting concrete and stone, the handheld cut-off saw comprising a drive arrangement (100, 200, 600, 800) for driving a circular cutting tool (110), the drive arrangement comprising: a belt drive portion (120) comprising a first pulley (121) and a second pulley (122), wherein the first pulley is arranged to be powered by a power source (130) and to drive the second pulley via a belt (123), wherein the second pulley (122) has a larger pitch diameter than the first pulley (121); and a gear transmission portion (140) comprising a first gearwheel (141) and a second gearwheel (142), wherein the first gearwheel (141) is co-axially connected to the second pulley (122) and radially connected to the second gearwheel (142), and wherein the second gearwheel (142) is arranged to be co-axially connected to the circular cutting tool (110).Type: ApplicationFiled: February 20, 2020Publication date: May 12, 2022Inventors: Håkan Pinzani, Niklas Sundberg, Fredrik Karlsson
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Patent number: 10773369Abstract: A cover (30) for concealing one or more components (20) of a power tool (10) presented herein. The cover (30) can include a through recess (52) between an inner surface (702) and an outer surface (708). The through-recess (52) being arranged for receiving a threaded member (80) protruding from the tool (10) and extending between an inner opening (704) at the inner surface (702) and an outer opening (706) at the outer surface (708). A threaded nut (60) for engaging the threaded member (80) for tightening the cover (30) to the tool (10) can be included. Additionally, the threaded nut (60) can be attached to the cover (30). The nut (60) can include a radially protruding portion (70) with a larger radius than the inner opening (704) and outer opening (706). The cover (30) can have opposing first and second shoulder portions (712, 714) surrounding the inner opening (704) and outer opening (706).Type: GrantFiled: December 22, 2014Date of Patent: September 15, 2020Assignee: HUSQVARNA ABInventors: Niklas Sundberg, Håkan Pinzani, Andreas Backström
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Patent number: 10486250Abstract: An electric power saw/cutter includes a rotatable saw structure, a rear handle with a switch/speed control, a front handle, and a drive unit for rotating the saw structure. The drive unit includes a saw structure drive arrangement to which the saw structure is attachable, a transmission for driving the saw drive arrangement, an electric motor for driving an input shaft of the transmission, and a support structure for holding/carrying the saw structure drive arrangement. The transmission and the electric motor may be characterized in that the front handle and the rear handle are directly connected to each other to form a handle unit, which unit is resiliently connected to the drive unit, so that vibrations from the saw blade and drive unit will be reduced in the handle unit.Type: GrantFiled: April 19, 2017Date of Patent: November 26, 2019Assignee: HUSQVARNA ABInventors: Ulf Petersson, Bengt Allan Bergvall, Håkan Pinzani, Pär Carlsson, Adam Vidlund, Johan Berg, Anders Bennehag
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Publication number: 20180215031Abstract: A cover (30) for concealing one or more components (20) of a power tool (10) presented herein. The cover (30) can include a through recess (52) between an inner surface (702) and an outer surface (708). The through-recess (52) being arranged for receiving a threaded member (80) protruding from the tool (10) and extending between an inner opening (704) at the inner surface (702) and an outer opening (706) at the outer surface (708). A threaded nut (60) for engaging the threaded member (80) for tightening the cover (30) to the tool (10) can be included. Additionally, the threaded nut (60) can be attached to the cover (30). The nut (60) can include a radially protruding portion (70) with a larger radius than the inner opening (704) and outer opening (706). The cover (30) can have opposing first and second shoulder portions (712, 714) surrounding the inner opening (704) and outer opening (706).Type: ApplicationFiled: December 22, 2014Publication date: August 2, 2018Inventors: Niklas Sundberg, Håkan Pinzani, Andreas Backström
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Publication number: 20170225358Abstract: A cutting and dust or slurry collecting assembly that comprises: a) a circular saw blade (4) b) a blade guard (5) c) a cover device (6), and the cover device (6) has a front end (31), a rear end (32), a top surface (34), a bottom surface (36), elongated sidewalls (35), and a longitudinal passage (45,46) for the saw blade, d) the blade guard (5) and the cover device (6) being pivotally connected or connectable to one another via a hinge (40) in or adjacent to a lower rear corner of the blade guard (5), such that the cover device and the blade guard can be turned in relation to each other, e) a discharge member (52) is provided at the rear of said hinge and has an outlet (58) which can be connected to a vacuum source, f) a connection member (12) connects the discharge member (52) with at least one of the longitudinal passage (45, 46) and the cut created rear of the longitudinal passage, g) that the direction of rotation of the saw blade (4) is such that a circumferential part of the blade which has passed beyonType: ApplicationFiled: April 26, 2017Publication date: August 10, 2017Inventors: Pär Carlsson, Håkan Pinzani, Paulo Varella
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Publication number: 20170216941Abstract: An electric power saw/cutter includes a rotatable saw structure, a rear handle with a switch/speed control, a front handle, and a drive unit for rotating the saw structure. The drive unit includes a saw structure drive arrangement to which the saw structure is attachable, a transmission for driving the saw drive arrangement, an electric motor for driving an input shaft of the transmission, and a support structure for holding/carrying the saw structure drive arrangement. The transmission and the electric motor may be characterized in that the front handle and the rear handle are directly connected to each other to form a handle unit, which unit is resiliently connected to the drive unit, so that vibrations from the saw blade and drive unit will be reduced in the handle unit.Type: ApplicationFiled: April 19, 2017Publication date: August 3, 2017Inventors: Ulf Petersson, Bengt Allan Bergvall, Håkan Pinzani, Pär Carlsson, Adam Vidlund, Johan Berg, Anders Bennehag
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Patent number: 9662800Abstract: A cutting and dust or slurry collecting assembly that includes: a circular saw blade, a blade guard, and a cover device. The cover device has a front end, a rear end, a top surface, a bottom surface, elongated sidewalls, and a longitudinal passage for the saw blade. The blade guard and the cover device are pivotally connected or connectable to one another via a hinge in or adjacent to a lower rear corner of the blade guard. A discharge member is provided at the rear of the hinge and has an outlet which can be connected to a vacuum source. A connection member connects the discharge member with the longitudinal passage and the cut created rear of the longitudinal passage.Type: GrantFiled: January 18, 2012Date of Patent: May 30, 2017Assignee: HUSQVARNA ABInventors: Pär Carlsson, Håkan Pinzani, Paulo Varella
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Patent number: 9656336Abstract: An electric power saw/cutter includes a rotatable saw structure, a rear handle with a switch/speed control, a front handle and a drive unit for rotating the saw structure. The drive unit itself including a saw structure drive arrangement to which the saw structure is attachable, a transmission for driving the saw drive arrangement, an electric motor for driving an input shaft of the transmission, and a support structure for holding/carrying the saw structure drive arrangement, the transmission and the electric motor. The front handle and the rear handle are directly connected to each other to form a handle unit, which unit is resiliently connected to the drive unit, so that vibrations from the saw blade and drive unit will be reduced in the handle unit.Type: GrantFiled: June 12, 2013Date of Patent: May 23, 2017Assignee: HUSQVARNA ABInventors: Ulf Petersson, Bengt Allan Bergvall, Håkan Pinzani, Pär Carlsson, Adam Vidlund, Johan Berg, Anders Bennehag
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Patent number: 9333571Abstract: A tool unit for a cutting or sawing machine with a tool carrier, including a first tool and a second tool. The first and second tool include a disk shaped cutting blade and a blade driving member. The first tool is secured to the second tool by means of a central clamping unit. Each blade driving member has a an aperture for attaching the first and second blade driving member together using the central clamping unit. The at least one disk shaped cutting blade has an at least partly recessed portion, adjacent to the aperture. The recessed portion is provided for attaching the disk shaped cutting blade to the corresponding blade driving member by holding the recessed portion axially between a main part and a blade supporting part of the corresponding blade driving member, ensuring an essentially flat outer extension plane of each tool.Type: GrantFiled: December 16, 2009Date of Patent: May 10, 2016Assignee: HUSQVARNA ABInventors: Ove Donnerdal, Hakan Pinzani
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Publication number: 20150151447Abstract: An electric power saw/cutter (1) comprising: a. a rotatable saw structure (2) b. a rear handle (5) with a switch/speed control (6) c. a front handle (7) d. a drive unit (8) for rotating the saw structure (2), the drive unit (8) itself comprising: e. a saw structure drive arrangement (9) to which the saw structure is attachable f. a transmission (10) for driving the saw drive arrangement (9) g. an electric motor (11) for driving an input shaft (12) of the transmission h. a support structure (13) for holding/carrying the saw structure drive arrangement (9), the transmission (10) and the electric motor (11), characterised in, that the front handle (7) and the rear handle (5) are directly connected to each other to form a handle unit (4), which unit is resiliently connected to the drive unit (8), so that vibrations from the saw blade (2) and drive unit (8) will be reduced in the handle unit (4).Type: ApplicationFiled: June 12, 2013Publication date: June 4, 2015Inventors: Ulf Petersson, Bengt Allan Bergvall, Håkan Pinzani, Pär Carlsson, Adam Vidlund, Johan Berg, Anders Bennehag
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Publication number: 20140013909Abstract: A cutting and dust or slurry collecting assembly that comprises: a) a circular saw blade (4) b) a blade guard (5) c) a cover device (6), and the cover device (6) has a front end (31), a rear end (32), a top surface (34), a bottom surface (36), elongated sidewalls (35), and a longitudinal passage (45,46) for the saw blade, d) the blade guard (5) and the cover device (6) being pivotally connected or connectable to one another via a hinge (40) in or adjacent to a lower rear corner of the blade guard (5), such that the cover device and the blade guard can be turned in relation to each other, e) a discharge member (52) is provided at the rear of said has hinge and h an outlet (58) which can be connected to a vacuum source, f) a connection member (12) connects the discharge member (52) with at least one of the longitudinal passage (45, 46) and the cut created rear of the longitudinal passage, g) that the direction of rotation of the saw blade (4) is such that a circumferential part of the blade which has passed beyType: ApplicationFiled: January 18, 2012Publication date: January 16, 2014Applicant: HUSQVARNA ABInventors: Par Carlsson, Hakan Pinzani, Paulo Varella
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Patent number: 8413645Abstract: A cutting or sawing machine (1) comprising a machine body (3), at least one disc shaped, rotatable tool (16a, 16b), an elongated tool carrier (14) having the substantial shape of a flat bar having a front end and a rear end, two opposite broad sides and two opposite edge sides, said rear end being connected to the machine body. The tool carrier comprises at least two elongated side walls (24, 25), a first elongated side wall (24) on one broad side of the tool carrier, a second elongated side wall (25) on the opposite broad side, said first and second side walls being essentially parallel with each other, and the front part of either one of the side walls or of a possible central elongated member (25) between the first and second side walls is provided with a bearing hole (28a) intended to carry a bearing of sliding contact type or of rolling contact type, i.e.Type: GrantFiled: March 23, 2005Date of Patent: April 9, 2013Assignee: Husqvarna ABInventors: Ove Donnerdal, Hakan Pinzani, Mari Albinsson
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Publication number: 20120304842Abstract: A tool unit (3) for a cutting or sawing machine with a tool carrier (103) enabling especially deep cuts, comprises a first tool (1) and a second part (2, 50). The first tool (1) comprises a disk shaped cutting blade (10) and a first blade driving member (40). The second part (2, 50) comprises either a second blade driving member (50), or a second tool (2) comprising a disk shaped cutting blade (10) and a second blade driving member (50). The first tool (1) is secured to the second part (2, 50) by means of a central clamping unit. Each cutting blade (10), has a central aperture defined by a central edge, and a peripheral cutting edge (13), being the working part of the tool (1, 2). The blade driving members (40, 50) are arranged to rotate together with the disk shaped cutting blade/s (10) about an axis of rotation (A). At least one of the driving members (40, 50) has a circumferential driving surface (41, 51) provided to be able to cooperate with an endless power transmission means.Type: ApplicationFiled: December 16, 2009Publication date: December 6, 2012Applicant: HUSQVARNA ABInventors: Ove Donnerdal, Hakan Pinzani
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Patent number: 8215295Abstract: A rotatable cutting tool unit of a tool assembly for a cutting machine that is used in conjunction with an associated method of cutting provides several novel aspects. The tool arrangement, which includes two tool units, includes first and second disk-shaped tools rotatable about an axis. The tools define maximum tool arrangement boundaries along the axis. A driving arrangement, at an axial location between the first and second tools, supports the first and second tools for rotation and transfers driving force. A radially outer periphery of the driving arrangement is at a radius less than a radius of a peripheral cutting edge portion of the first tool and less than a radius of a peripheral cutting edge portion of the second tool.Type: GrantFiled: July 14, 2009Date of Patent: July 10, 2012Assignee: Husqvarna ABInventors: Ove Donnerdal, Håkan Pinzani, Mari Albinsson
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Publication number: 20100175676Abstract: A rotatable cutting tool unit of a tool assembly for a cutting machine that is used in conjunction with an associated method of cutting provides several novel aspects. The tool arrangement, which includes two tool units, includes first and second disk-shaped tools rotatable about an axis. The tools define maximum tool arrangement boundaries along the axis. A driving arrangement, at an axial location between the first and second tools, supports the first and second tools for rotation and transfers driving force. A radially outer periphery of the driving arrangement is at a radius less than a radius of a peripheral cutting edge portion of the first tool and less than a radius of a peripheral cutting edge portion of the second tool.Type: ApplicationFiled: July 14, 2009Publication date: July 15, 2010Inventors: Ove Donnerdal, Håkan Pinzani, Mari Albinsson
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Publication number: 20090199835Abstract: A cutting or sawing machine (1) comprising a machine body (3), at least one disc shaped, rotatable tool (16a, 16b), an elongated tool carrier (14) having the substantial shape of a flat bar having a front end and a rear end, two opposite broad sides and two opposite edge sides, said rear end being connected to the machine body. The tool carrier comprises at least two elongated side walls (24, 25), a first elongated side wall (24) on one broad side of the tool carrier, a second elongated side wall (25) on the opposite broad side, said first and second side walls being essentially parallel with each other, and the front part of either one of the side walls or of a possible central elongated member (25) between the first and second side walls is provided with a bearing hole (28a) intended to carry a bearing of sliding contact type or of rolling contact type, i.e.Type: ApplicationFiled: March 23, 2005Publication date: August 13, 2009Applicant: AKTIEBOLAGET ELECTROLUXInventors: Ove Donnerdal, Hakan Pinzani, Mari Albinsson
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Patent number: 7571720Abstract: A rotatable cutting tool unit of a tool assembly for a cutting machine that is used in conjunction with an associated method of cutting provides several novel aspects. The tool arrangement, which includes two tool units, includes first and second disk-shaped tools rotatable about an axis. The tools define maximum tool arrangement boundaries along the axis. A driving arrangement, at an axial location between the first and second tools, supports the first and second tools for rotation and transfers driving force. A radially outer periphery of the driving arrangement is at a radius less than a radius of a peripheral cutting edge portion of the first tool and less than a radius of a peripheral cutting edge portion of the second tool.Type: GrantFiled: January 23, 2007Date of Patent: August 11, 2009Assignee: Husqvarna ABInventors: Ove Donnerdal, Häkan Pinzani, Mari Albinsson
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Publication number: 20070221188Abstract: A rotatable cutting tool unit of a tool assembly for a cutting machine that is used in conjunction with an associated method of cutting provides several novel aspects. The tool arrangement, which includes two tool units, includes first and second disk-shaped tools rotatable about an axis. The tools define maximum tool arrangement boundaries along the axis. A driving arrangement, at an axial location between the first and second tools, supports the first and second tools for rotation and transfers driving force. A radially outer periphery of the driving arrangement is at a radius less than a radius of a peripheral cutting edge portion of the first tool and less than a radius of a peripheral cutting edge portion of the second tool.Type: ApplicationFiled: January 23, 2007Publication date: September 27, 2007Applicant: HUSQVARNA ABInventors: Ove Donnerdal, Hakan Pinzani, Mari Albinsson