Patents by Inventor Per Hansson
Per Hansson 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: 9446181Abstract: A washer press apparatus for washing and dewatering a wide range of solids concentrations of pulp in liquid suspensions includes multiple distinct displacement wash zones about a drum with multiple nips.Type: GrantFiled: November 8, 2013Date of Patent: September 20, 2016Assignee: Gambro Lundia ABInventors: Lennart Jonsson, Olof Jansson, Mattias Holmer, Jan Sternby, Anders Nilsson, Per Hansson
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Publication number: 20160243626Abstract: A guide pad for a cutting tool and a cutter head for such guide pad, wherein the guide pad includes two opposite located symmetrically formed main surfaces, two longitudinal side surfaces and four sliding surfaces, two on each main surface located in sequence along a longitudinal axis of the guide pad, and being convexly curved as viewed in a plane perpendicular to the longitudinal axis. Each sliding surface has a fluid conveying formation having a bottom surface and a longitudinal extension in parallel to the longitudinal axis, which separates each sliding surface into two convexly curved sliding sub-surfaces. The guide pad also includes two bearing surfaces along each longitudinal side surface of the guide pad, which are located on a respective side of and facing away from a median plane halfway between the main surfaces and having at least some extension in the direction of the median plane perpendicular to the longitudinal axis.Type: ApplicationFiled: October 14, 2014Publication date: August 25, 2016Inventor: Per HANSSON
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Publication number: 20160243627Abstract: A guide pad for a cutting tool includes a sliding surface, which is convexly curved in a plane perpendicular to a longitudinal axis of the guide pad. A channel-shaped recess is formed in the sliding surface that extends in the direction of the longitudinal axis of the guide pad and terminates before reaching an end of the sliding surface at an end of the guide pad.Type: ApplicationFiled: October 14, 2014Publication date: August 25, 2016Inventor: Per HANSSON
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Publication number: 20160220091Abstract: A system (10) for washing items (12) with water, comprising a water inlet (18) and a container (13) for receiving the items (12) to be washed. The system (10) comprises a water purification apparatus (19) for purifying water introduced through said water inlet (18) to produce purified water. The water purification apparatus (19) comprises at least one filter (25, 29, 30) for filtering off particulate solids, a reverse osmosis device (26), and at least one deionizing filter (27, 31). The system (10) further comprises a reservoir (20) for storing purified water produced by the water purification apparatus (19), said reservoir (20) being connected to said water purification apparatus (19) and said container (13), so that the items (12) are washable inside the container (11) with the purified water. Disclosed is also a method for washing items.Type: ApplicationFiled: September 8, 2014Publication date: August 4, 2016Inventor: Per HANSSON
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Publication number: 20150306293Abstract: A monitoring device (7) operates on a pressure signal from a blood processing apparatus, e.g. a dialysis machine, which has an extracorporeal blood circuit connected to a vascular system of a subject for pumping blood through a dialyzer, and a treatment fluid supply system for pumping a treatment fluid through the dialyzer. The monitoring device (7) has a first input block (50) for obtaining a first pressure signal (y) from a first pressure sensor (6a) in the extracorporeal blood circuit, and a second input block (51) for obtaining a second pressure signal (w) from a second pressure sensor (6b) in the treatment fluid supply system.Type: ApplicationFiled: December 11, 2013Publication date: October 29, 2015Inventors: Jan Sternby, Mattias Holmer, Bo Olde, Kristian Solem, Anders Wallenborg, Per Hansson
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Patent number: 9138813Abstract: A hole-making tool includes a body having a seat, which is delimited by a tangential support surface, an axial support surface, and a radial support surface. A cutting insert is fixed in the seat. A pair of female- and male-like securing means is arranged in the interface between the tangential support surface of the seat and the underside of the cutting insert. The female-like securing means includes a guide surface. The male-like securing means is spaced from the guide surface to form a gap between the securing means when the cutting insert is pressed against the axial and radial support surfaces. If the feeding direction of the tool is reversed, the cutting insert may become detached from the seat and the securing means is activated to direct the cutting insert inward toward the radial support surface to prevent the peripheral portion of the cutting insert from scratching the generated hole.Type: GrantFiled: January 18, 2013Date of Patent: September 22, 2015Assignee: Sandvik Intellectual Property ABInventor: Per Hansson
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Patent number: 9068479Abstract: A valve mechanism for an internal combustion engine is operable to selectively open and close a gas exchange valve to accomplish an engine brake during an engine brake mode of an engine. The valve mechanism includes a cam follower in biased abutment against a gas exchange cam element for actuation of a rocker arm connected to the gas exchange valve.Type: GrantFiled: December 16, 2009Date of Patent: June 30, 2015Assignee: Volvo Lastvagnar ABInventors: Per Hansson, Alexander Ölén
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Publication number: 20150104267Abstract: A guide pad for a cutting tool is formed with at least one sliding surface, which is convexly curved in a plane perpendicular to a longitudinal axis of the guide pad. Each sliding surface includes two convexly curved sliding sub-surfaces separated by a fluid conveying formation having a longitudinal extension in a direction in parallel to the longitudinal axis. The fluid conveying formation is planar or has a convexly curved shape in a direction perpendicular to the longitudinal axis having a larger radius of curvature than the radius of the sliding surface.Type: ApplicationFiled: October 15, 2014Publication date: April 16, 2015Inventors: Eva VAN DOORN, Per HANSSON
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Patent number: 8845243Abstract: Reaming tool includes a head and one or more detachable cutting inserts fixed in seats. The seat includes radial, tangential and axial support surfaces, while the cutting insert has a mirror-symmetrical polyhedron shape comprising six limiting surfaces, viz. two chip surfaces and four clearance surfaces, a number of alternately usable identical cutting edges formed in the transitions between the chip and clearance surfaces. The cutting insert has a rhombic cross-sectional shape with four clearance surfaces, which meet each other in pairs at obtuse angles in two opposite corners, and which, along each individual chip surface, form two cutting edges alternately usable by indexing the cutting insert. The seat additionally includes a slope surface forming an obtuse angle with the radial support surface, suitably of the same magnitude as the obtuse angle between the clearance surfaces of the cutting insert. Tool head and reaming insert for the tool are disclosed.Type: GrantFiled: December 23, 2011Date of Patent: September 30, 2014Assignee: Sandvik Intellectual Property ABInventor: Per Hansson
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Patent number: 8684640Abstract: Reaming tool includes a head and a detachable cutting insert fixed in a seat. The seat includes radial, tangential, and axial support surfaces, while the cutting insert has a mirror-symmetrical polyhedron shape comprising six limiting surfaces, viz. two chip surfaces and at least two clearance surfaces, a number of alternately usable, identical cutting edges formed in transitions between the chip and clearance surfaces. A female- or male-like securing means co-operates with a complementary, male- or female-like securing means in the seat, more precisely in an inactive, contactless state as long as the cutting insert is held pressed by the cutting forces against the axial support surface. The securing means is activatable when the cutting insert is unintentionally distanced from the axial support surface against the action of a clamping member. Tool head and reaming insert for the tool are disclosed.Type: GrantFiled: December 23, 2011Date of Patent: April 1, 2014Assignee: Sandvik Intellectual Property AGInventor: Per Hansson
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Publication number: 20140061132Abstract: A washer press apparatus for washing and dewatering a wide range of solids concentrations of pulp in liquid suspensions includes multiple distinct displacement wash zones about a drum with multiple nips.Type: ApplicationFiled: November 8, 2013Publication date: March 6, 2014Applicant: Gambro Lundia ABInventors: Lennart JONSSON, Olof Jansson, Mattias Holmer, Jan Sternby, Anders Nilsson, Per Hansson
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Publication number: 20140030038Abstract: A hole-making tool includes a body having a seat, which is delimited by a tangential support surface, an axial support surface, and a radial support surface. A cutting insert is fixed in the seat. A pair of female- and male-like securing means is arranged in the interface between the tangential support surface of the seat and the underside of the cutting insert. The female-like securing means includes a guide surface. The male-like securing means is spaced from the guide surface to form a gap between the securing means when the cutting insert is pressed against the axial and radial support surfaces. If the feeding direction of the tool is reversed, the cutting insert may become detached from the seat and the securing means is activated to direct the cutting insert inward toward the radial support surface to prevent the peripheral portion of the cutting insert from scratching the generated hole.Type: ApplicationFiled: January 18, 2013Publication date: January 30, 2014Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventor: Per Hansson
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Publication number: 20130319920Abstract: A blood treatment apparatus comprising: a blood treatment unit; a blood line configured to extract blood from a blood source, pass the blood through the blood treatment unit and deliver treated blood to a target vessel; and a fluid line configured pass treatment fluid through the blood treatment unit and deliver used treatment fluid to a fluid sink. A flow divider is arranged in the fluid line separates treatment fluid into to a first fluid section and a second fluid section, thereby electrically isolating the fluid sections such that electrical current flowing in the fluid line between the fluid sections is limited. Related manufacturing and verification methods are also described.Type: ApplicationFiled: September 14, 2011Publication date: December 5, 2013Applicant: GAMBRO LUNDIA ABInventors: Per Hansson, Thomas Hertz, Mattias Holmer, Lennart Jonsson, Anders Nilsson, Anders Wallenborg, Johan Andersson
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Patent number: 8580110Abstract: A proposed blood treatment apparatus includes: a blood treatment unit, a pair of fluid pumps and a pair blood pumps. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Additionally, the fluid pumps are configured to control the operation of the blood pumps via the blood treatment fluid. Moreover, a flow control device is configured to control a trans-membrane flow between the blood side and the a fluid side of the blood treatment unit. Hence, for instance ultrafiltration can be adjusted to a desired level in a very straightforward manner.Type: GrantFiled: April 14, 2009Date of Patent: November 12, 2013Assignee: Gambro Lundia ABInventors: Lennart Jönsson, Olof Jansson, Mattias Holmer, Jan Sternby, Anders Nilsson, Per Hansson
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Patent number: 8545427Abstract: A blood treatment apparatus, including a blood treatment unit configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid, a pair of fluid pumps configured to pass blood treatment fluid through the blood treatment unit, a pair of blood pumps configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel, each blood pump including a pump chamber and a flexible member separating the pumping chamber into a first blood accumulating container and a second working fluid accumulating container where the flexible member is configured to vary a volume relationship between the first and the second accumulation containers.Type: GrantFiled: October 12, 2009Date of Patent: October 1, 2013Assignee: Gambro Lundia ABInventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
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Publication number: 20130218073Abstract: A blood access device including a fluid conduit configured to convey a flow of fluid to a target vessel, a second lever element pivotally and resiliently connected to a first lever element such that it may move from a first position to a second position. A biasing force is exerted on the second lever element for moving it from the first position to the second position, and a blocking member may be activated by the second lever element, such that a flow of fluid is decreased when the second lever element is moved from the first position to the second position. The lever elements are configured to be fixed to the target vessel when the second lever element is in the first position, and the second lever element moves to the second position and activates the blocking member if the fixation is at least partially lost.Type: ApplicationFiled: June 20, 2011Publication date: August 22, 2013Inventors: Olof Ekdahl, Marco Zanini, Per Hansson, Eddie Nilsson, Olof Jansson, Lennart Jonsson
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Patent number: 8485999Abstract: A blood treatment apparatus includes: a blood treatment unit, a pair of fluid pumps and a pair of blood pumps. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Flow measurement device which determines at least one blood flow parameter reflecting an average flow in relation to the blood treatment unit during a well-defined period of operation of the apparatus, for example while completing one operation cycle.Type: GrantFiled: October 12, 2009Date of Patent: July 16, 2013Assignee: Gambro Lundia ABInventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
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Publication number: 20130042835Abstract: A valve mechanism for an internal combustion engine is operable to selectively open and close a gas exchange valve to accomplish an engine brake during an engine brake mode of an engine. The valve mechanism includes a cam follower in biased abutment against a gas exchange cam element for actuation of a rocker arm connected to the gas exchange valve.Type: ApplicationFiled: December 16, 2009Publication date: February 21, 2013Applicant: VOLVO LASTVAGNAR ABInventors: Per Hansson, Alexander Olén
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Publication number: 20120269593Abstract: Reaming tool includes a head and a detachable cutting insert fixed in a seat. The seat includes radial, tangential, and axial support surfaces, while the cutting insert has a mirror-symmetrical polyhedron shape comprising six limiting surfaces, viz. two chip surfaces and at least two clearance surfaces, a number of alternately usable, identical cutting edges formed in transitions between the chip and clearance surfaces. A female- or male-like securing means co-operates with a complementary, male- or female-like securing means in the seat, more precisely in an inactive, contactless state as long as the cutting insert is held pressed by the cutting forces against the axial support surface. The securing means is activatable when the cutting insert is unintentionally distanced from the axial support surface against the action of a clamping member. Tool head and reaming insert for the tool are disclosed.Type: ApplicationFiled: December 23, 2011Publication date: October 25, 2012Inventor: Per Hansson
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Publication number: 20120257939Abstract: Reaming tool includes a head and one or more detachable cutting inserts fixed in seats. The seat includes radial, tangential and axial support surfaces, while the cutting insert has a mirror-symmetrical polyhedron shape comprising six limiting surfaces, viz. two chip surfaces and four clearance surfaces, a number of alternately usable identical cutting edges formed in the transitions between the chip and clearance surfaces. The cutting insert has a rhombic cross-sectional shape with four clearance surfaces, which meet each other in pairs at obtuse angles in two opposite corners, and which, along each individual chip surface, form two cutting edges alternately usable by indexing the cutting insert. The seat additionally includes a slope surface forming an obtuse angle with the radial support surface, suitably of the same magnitude as the obtuse angle between the clearance surfaces of the cutting insert. Tool head and reaming insert for the tool are disclosed.Type: ApplicationFiled: December 23, 2011Publication date: October 11, 2012Inventor: Per Hansson