Patents by Inventor Rune Granberg
Rune Granberg 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: 6148715Abstract: A device in an end wall (3) of a pressure fluid cylinder (1) of the kind including a cylinder tube (2), which is provided with a longitudinal slot and having a transfer means for transferring a movement from a moveable piston (11) inside the cylinder through the slot, and which is sealed by at least an inner (4) sealing band, wherein the device is arranged for fastening the end of the sealing band (4) in the cylinder end wall (3). The invention is distinguished by the end wall (3) being provided with an axially extending recess (5), which includes a first portion (9) adapted for axial reception of the inner sealing band and a second portion (10) for axial reception of a screw (6), said screw being adapted to engage with part of its thread a sealing band (4) which is inserted into the recess (5).Type: GrantFiled: March 24, 1999Date of Patent: November 21, 2000Assignee: AB Rexroth MecmanInventor: Rune Granberg
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Patent number: 6109166Abstract: Pressure fluid cylinder including a slot type cylinder tube which is shielded and sealed by an outer (11) and an inner (10) sealing band, a piston (2,5) which is arranged inside the tube and a transfer means (3) for transferring the movement of the piston to the outside of the cylinder tube. The invention is distinguished by the piston comprising a central body (2) and two piston end units (5) which surround the respective end thereof and support directly against the body, said units comprising guide elements (17) for the piston inside the cylinder, and by each piston end unit (5) comprising an integral piston sealing member seat (7).Type: GrantFiled: October 28, 1998Date of Patent: August 29, 2000Assignee: AB Rexroth MecmanInventor: Rune Granberg
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Patent number: 6101921Abstract: A fluid pressure cylinder of the kind including a cylinder tube (23) with a slot and being shielded and sealed by an outer (11) and an inner (10) sealing band and with a cylinder bore (23') and a piston (2,5) which is movably arranged inside the tube and a transfer means (3) for transferring the piston movement through the slot to means (4) at the outside of the cylinder tube, wherein the piston comprises a seat (7) for a piston sealing member (6). The piston comprises a central body (2) and two piston end units (5) surrounding the respective end of the piston body and lying (17) against the cylinder bore, wherein each piston end unit (5) is fitted with play (s) onto the body (2) in order to allow a relative movement between these elements in directions essentially perpendicular to the cylinder axis.Type: GrantFiled: October 28, 1998Date of Patent: August 15, 2000Assignee: AB Rexroth MeemanInventors: Rune Granberg, Kenneth Johansson
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Patent number: 6098522Abstract: A device in an end wall (3) of a fluid pressure cylinder (1), of the kind including a cylinder tube (2) which is provided with a longitudinal slot through which a transfer element is arranged to transfer movement from a piston being moveable inside the cylinder and which is sealed through at least an inner (8) sealing band, said device being arranged for fastening of the inner sealing band (8) in the cylinder end wall, is distinguished by a fastening unit (4) which is insertable and lockable inside a cavity in the end wall (3) and which is comprised of a profile body (4) having a clamping jaw (5) for holding the inner band (8), said jaw being displaceable by deformation (at 6) and being arranged to co-operate with a first tightening screw (10) for obtaining the displacement.Type: GrantFiled: October 27, 1998Date of Patent: August 8, 2000Assignee: AB Rexroth MecmanInventor: Rune Granberg
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Patent number: 5823092Abstract: Rotary actuator (1) including a housing (2), which defines a working chamber (3) with at least partially circular section for actuation with a pressure fluid, a pivoting piston (5) which is sealingly arranged against the inner wall of and pivotable between two end positions in said working chamber, said housing being divided through the working chamber perpendicular to its symmetry axis.Type: GrantFiled: March 28, 1996Date of Patent: October 20, 1998Assignee: AB Rexroth MecmanInventor: Rune Granberg
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Patent number: 5701799Abstract: A rotary actuator (1) comprising a housing (2), which defines a working chamber (3) for actuation with a pressure fluid and having at least partially circular section, a pivoting piston (5) which is arranged sealingly against the inner wall (4) of and rotatable between two end positions in the working chamber, is featured in that the pivoting piston (5) itself is pivotally supported in bearings (16) which are arranged in the housing (2) axially at each side of the working chamber (3), and wherein it comprises means for cooperation with an external rotary shaft, whereby the housing (2) on at least one of its end walls is adapted so as to be contacted against and be fixedly fastened to a corresponding end wall portions of a second rotary actuator housing (2), and whereby these housings are fixable to one another in such a way that the axes (X) of the pivoting pistons of the respective housings are coaxial and that the pivoting pistons thereby are capable of affecting one common outgoing shaft.Type: GrantFiled: March 28, 1996Date of Patent: December 30, 1997Assignee: AB Rexroth MecmanInventor: Rune Granberg
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Patent number: 5622096Abstract: A rotational position detector device (20), which is fastenable to a rotary actuator (1) of the type comprising a rotary motor (3,5) inside a housing (2) and a rotary shaft extending therefrom, a turning element (21) adapted to be rotationally fastened to the rotary shaft, said turning element being detectable by at least one position sensor (23), which is adapted to be adjustably fixed with respect to the housing (2). The device is provided with a socket portion (25) which is rigidly connected to the housing and coaxial with said shaft and at least one sensor holder (24) which is rotatably attached to said socket portion and adjustably fixable in chosen angular positions by means of locking cooperation between a resilient engagement means (26,27) on the sensor holder and a surface (30) which is provided with engagement irregularities.Type: GrantFiled: March 29, 1996Date of Patent: April 22, 1997Assignee: AB Rexroth MecmanInventor: Rune Granberg