Patents by Inventor Ulf Hellman

Ulf Hellman 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: 11774223
    Abstract: The present invention relates to a substantially spheroidal fragmentation device (10). The fragmentation device (10) comprises: i) a protective exterior layer (6) of resilient material accommodating at least one warhead (9); ii) an inner core (11) protected by said exterior layer (6). The inner core (11) comprises: ii.a) an insensitive munition (IM); ii.b) a polymeric, plastic and/or rubbery matrix embedding the insensitive munition (IM); ii.c) explosive material (5) enclosed within the matrix of ii.b) and/or surrounding the matrix of ii.b). The ratio of the thickness of the protective exterior layer (6) to the radius of the fragmentation device (10) ranges from 0.1:1 to 0.7:1. The warhead (9) is accommodated within the protective exterior layer (6) or between the inner core (11) and the protective exterior layer (6).
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: October 3, 2023
    Assignee: SAAB AB
    Inventor: Ulf Hellman
  • Publication number: 20220170723
    Abstract: The present invention relates to a substantially spheroidal fragmentation device (10). The fragmentation device (10) comprises: i) a protective exterior layer (6) of resilient material accommodating at least one warhead (9); ii) an inner core (11) protected by said exterior layer (6). The inner core (11) comprises: ii.a) an insensitive munition (IM); ii.b) a polymeric, plastic and/or rubbery matrix embedding the insensitive munition (IM); ii.c) explosive material (5) enclosed within the matrix of ii.b) and/or surrounding the matrix of ii.b). The ratio of the thickness of the protective exterior layer (6) to the radius of the fragmentation device (10) ranges from 0.1:1 to 0.7:1. The warhead (9) is accommodated within the protective exterior layer (6) or between the inner core (11) and the protective exterior layer (6).
    Type: Application
    Filed: March 2, 2020
    Publication date: June 2, 2022
    Inventor: Ulf HELLMAN
  • Publication number: 20120238478
    Abstract: Plasma samples of ovarian and breast cancer patients were used to search for markers of cancer, using two-dimensional gel electrophoresis and MALDI TOF mass spectrometry. Truncated forms of cytosolic serine hydroxymethyl transferase (cSHMT), T-box transcription factor 3 (Tbx3) and utrophin were aberrantly expressed in samples from cancer patients, as compared to samples from noncancer cases. Aberrant expression of proteins was validated by immunoblotting of plasma samples with specific antibodies to cSHMT, Tbx3 and utrophin. A cohort of 79 breast and 39 ovarian cancer patients, and 31 individuals who were either healthy or had noncancerous conditions was studied. We observed increased expression of truncated cSHMT, Tbx3 and utrophin in plasma samples obtained from patients at early stages of disease. The results indicate that cSHMT, Tbx3, utrophin and truncated forms thereof can be used as components of multiparameter monitoring of ovarian and breast cancer.
    Type: Application
    Filed: May 4, 2012
    Publication date: September 20, 2012
    Inventors: Marta Lomnytska, Anna Dubrovska, Ulf Hellman, Nataliya Volodko, Serhiy Souchelnytskyi
  • Patent number: 8187889
    Abstract: Plasma samples of ovarian and breast cancer patients were used to search for markers of cancer, using two-dimensional gel electrophoresis and MALDI TOF mass spectrometry. Truncated forms of cytosolic serine hydroxymethyl transferase (cSHMT), T-box transcription factor 3 (Tbx3) and utrophin were aberrantly expressed in samples from cancer patients, as compared to samples from noncancer cases. Aberrant expression of proteins was validated by immunoblotting of plasma samples with specific antibodies to cSHMT, Tbx3 and utrophin. A cohort of 79 breast and 39 ovarian cancer patients, and 31 individuals who were either healthy or had noncancerous conditions was studied. We observed increased expression of truncated cSHMT, Tbx3 and utrophin in plasma samples obtained from patients at early stages of disease. The results indicate that cSHMT, Tbx3, utrophin and truncated forms thereof can be used as components of multiparameter monitoring of ovarian and breast cancer.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: May 29, 2012
    Assignee: Ludwig Institute For Cancer Research Ltd.
    Inventors: Marta Lomnytska, Anna Dubrovska, Ulf Hellman, Nataliya Volodko, Serhiy Souchelnytskyi
  • Publication number: 20080213907
    Abstract: Plasma samples of ovarian and breast cancer patients were used to search for markers of cancer, using two-dimensional gel electrophoresis and MALDI TOF mass spectrometry. Truncated forms of cytosolic serine hydroxymethyl transferase (cSHMT), T-box transcription factor 3 (Tbx3) and utrophin were aberrantly expressed in samples from cancer patients, as compared to samples from noncancer cases. Aberrant expression of proteins was validated by immunoblotting of plasma samples with specific antibodies to cSHMT, Tbx3 and utrophin. A cohort of 79 breast and 39 ovarian cancer patients, and 31 individuals who were either healthy or had noncancerous conditions was studied. We observed increased expression of truncated cSHMT, Tbx3 and utrophin in plasma samples obtained from patients at early stages of disease. The results indicate that cSHMT, Tbx3, utrophin and truncated forms thereof can be used as components of multiparameter monitoring of ovarian and breast cancer.
    Type: Application
    Filed: July 27, 2007
    Publication date: September 4, 2008
    Inventors: Marta Lomnytska, Anna Dubrovska, Ulf Hellman, Nataliya Volodko, Serhiy Souchelnytskyi
  • Patent number: 7226016
    Abstract: This disclosure relates to a method and an arrangement for low or non-rotating artillery shells fired from launch weaponry, and which introduces a portion of the barrel pressure built up in the barrel during the launch phase into a chamber arranged in the low or non-rotating artillery shell which is delimited in at least one direction by an element which is movable relative to the rest of the shell when a differential pressure between the chamber and the external environment of the shell is sufficient to move the element. The moveable element may be a protective casing covering fins of the artillery shell.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: June 5, 2007
    Assignee: BAE Systems Bofors AB
    Inventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
  • Publication number: 20070084961
    Abstract: This disclosure relates to a method and an arrangement for low or non-rotating artillery shells fired from launch weaponry, and which introduces a portion of the barrel pressure built up in the barrel during the launch phase into a chamber arranged in the low or non-rotating artillery shell which is delimited in at least one direction by an element which is movable relative to the rest of the shell when a differential pressure between the chamber and the external environment of the shell is sufficient to move the element. The moveable element may be a protective casing covering fins of the artillery shell.
    Type: Application
    Filed: March 28, 2005
    Publication date: April 19, 2007
    Applicant: BOFORS DEFENCE AB
    Inventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
  • Patent number: 6886775
    Abstract: The present invention relates to a fin-stabilized artillery shell (1) comprising a body part (8, 26, 36) which can be axially displaced rearwards, in the direction of flight of the shell, once the latter has left the barrel from which it has been fired, and which in the original position is fully retracted in the shell (1), and in which a number of deployable fins (18, 24, 29-30, 42-47) are in turn secured, and from which the fins are automatically deployed as soon as the body part has reached its rear position in which it is locked relative to the rest of the shell. One of the advantages of the invention is that in the flight position it gives the shell a greater length than is permitted by the charging position of the artillery piece launching the shell. This gives the shell considerably better stability in its trajectory towards the target.
    Type: Grant
    Filed: June 13, 2001
    Date of Patent: May 3, 2005
    Assignee: Bofors Defence AB
    Inventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
  • Patent number: 6880468
    Abstract: The present invention relates to a method and a device for improving—at least in part—the external ballistieds of primarily the type of artillery shells (1) that are fin-stabilised in their trajectory towards the target and thus have a slipping plastic driving band (6) which, during firing of the said shell from a designated barrel, constitutes the shell's direct contact with the inside of the barrel. The problem that it is the function of the present invention to resolve is that the slipping plastic driving band (6) normally detaches immediately outside the muzzle of the barrel used for firing, thereby leaving an open groove (4) that causes distrubing turbulence which is detrimental to the flight of the said shell.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: April 19, 2005
    Assignee: Bofors Defence AB
    Inventor: Ulf Hellman
  • Patent number: 6796525
    Abstract: The present invention relates to a fin-stabilized missile (1) of the type which is intended to be fired at high acceleration towards a defined target along its trajectory and which can be guided in the trajectory and which, for stabilizing it in the trajectory, is provided with stabilizing fins (3, 32) arranged at its rear end, and control elements (6, 7) which are arranged at its front end and are intended to guide the latter, and whose rear part, in which the fins are secured, consists of a body part (4, 31) which can rotate freely relative to the main part (1, 29) of the missile about a bearing (14, 36) arranged concentric to the longitudinal axis (L) of the missile (1).
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: September 28, 2004
    Assignee: Bofors Defence AB
    Inventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
  • Patent number: 6779754
    Abstract: The present invention relates to a long-range artillery shell (1) that is fin-stabilised in its trajectory and which is designed to be fired in a rifled gun barrel and thus has a slipping driving band (8) as main contact surface with the inside of the barrel, and has a so-called base-bleed unit (3) with a number of stabilization fins (9-14) that are deployable after the shell has left the barrel.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: August 24, 2004
    Assignee: Bofors Defence AB
    Inventor: Ulf Hellman
  • Publication number: 20040149157
    Abstract: The present invention relates to a method and a device for improving—at least in part—the external ballistics of primarily the type of artillery shells (1) that are fin-stabilised in their trajectory towards the target and thus have a slipping plastic driving band (6) which, during firing of the said shell from a designated barrel, constitutes the shell's direct contact with the inside of the barrel. The problem that it is the function of the present invention to resolve is that the slipping plastic driving band (6) normally detaches immediately outside the muzzle of the barrel used for firing, thereby leaving an open groove (4) that causes distrubing turbulence which is detrimental to the flight of the said shell.
    Type: Application
    Filed: March 15, 2004
    Publication date: August 5, 2004
    Inventor: Ulf Hellman
  • Patent number: 6748871
    Abstract: The present invention relates to an artillery missile (1) intended for firing on a ballistic trajectory, with gliding characteristics which can be put into effect, after it has reached the summit of this trajectory, to increase the maximum range of the missile.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: June 15, 2004
    Assignee: Bofors Defence AB
    Inventor: Ulf Hellman
  • Publication number: 20040094661
    Abstract: The present invention relates to a method and an arrangement for shells (1a, 1b) fired from launch weaponry, using some of the barrel pressure built up in the barrel during the launch phase for an additional active function over and above that of giving the shell (1a, 1b) in question its trajectory velocity. According to the invention, during the launch phase, some of the propellant powder gas accelerating the shell is therefore introduced into a chamber (12, 38, 60) which is arranged in the same and which is delimited in at least one direction by an element (8, 31, 58, 52, 53) which is movable relative to the rest of the shell and on which the barrel pressure acting on the shell simultaneously acts to maintain the original direction as long as the shell is located inside the barrel during the launch phase. This technique can thus be used to remove protective casings covering the fins, in order to push out fin units and to deploy initially retracted fins.
    Type: Application
    Filed: July 1, 2003
    Publication date: May 20, 2004
    Inventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
  • Publication number: 20040021034
    Abstract: The present invention relates to an artillery missile (1) intended for firing on a ballistic trajectory, with gliding characteristics which can be put into effect, after it has reached the summit of this trajectory, to increase the maximum range of the missile.
    Type: Application
    Filed: July 29, 2003
    Publication date: February 5, 2004
    Inventor: Ulf Hellman
  • Publication number: 20040011919
    Abstract: The present invention relates to a fin-stabilized artillery shell (1) comprising a body part (8, 26, 36) which can be axially displaced rearwards, in the direction of flight of the shell, once the latter has left the barrel from which it has been fired, and which in the original position is fully retracted in the shell (1), and in which a number of deployable fins (18, 24, 29-30, 42-47) are in turn secured, and from which the fins are automatically deployed as soon as the body part has reached its rear position in which it is locked relative to the rest of the shell. One of the advantages of the invention is that in the flight position it gives the shell a greater length than is permitted by the charging position of the artillery piece launching the shell. This gives the shell considerably better stability in its trajectory towards the target.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 22, 2004
    Inventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
  • Publication number: 20040011920
    Abstract: The present invention relates to a fin-stabilized missile (1) of the type which is intended to be fired at high acceleration towards a defined target along its trajectory and which can be guided in the trajectory and which, for stabilizing it in the trajectory, is provided with stabilizing fins (3, 32) arranged at its rear end, and control elements (6, 7) which are arranged at its front end and are intended to guide the latter, and whose rear part, in which the fins are secured, consists of a body part (4, 31) which can rotate freely relative to the main part (1, 29) of the missile about a bearing (14, 36) arranged concentric to the longitudinal axis (L) of the missile (1).
    Type: Application
    Filed: July 11, 2003
    Publication date: January 22, 2004
    Inventors: Stig Johnsson, Ulf Hellman, Ulf Holmqvist
  • Patent number: 6616093
    Abstract: The present invention relates to a method and a device for correcting the trajectory (7, 8, 10, 11) of a spin-stabilised projectile (12) in azimuth by controlling its rate of spin by devices (18-21) deployable on the outside of the projectile (12) where they act on the airflow.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: September 9, 2003
    Assignee: Bofors Weapon Systems AB
    Inventors: Kjell Albrektsson, Torsten Wik, Ulf Hellman
  • Publication number: 20030166232
    Abstract: The invention describes nucleic acids encoding the PARG protein, including fragments and biologically functional variants thereof. Also included are polypeptides and fragments thereof encoded by such nucleic acids, and antibodies relating thereto. Methods and products for using such nucleic acids and polypeptides also are provided.
    Type: Application
    Filed: June 21, 2002
    Publication date: September 4, 2003
    Inventors: Jan Saras, Petra Franzen, Pontus Aspenstrom, Ulf Hellman, Leonel Jorge Gonez, Carl-Henrik Heldin
  • Publication number: 20030146342
    Abstract: The present invention relates to a long-range artillery shell (1) that is fin-stabilised in its trajectory and which is designed to be fired in a rifled gun barrel and thus has a slipping driving band (8) as main contact surface with the inside of the barrel, and has a so-called base-bleed unit (3) with a number of stabilization fins (9-14) that are deployable after the shell has left the barrel.
    Type: Application
    Filed: February 4, 2003
    Publication date: August 7, 2003
    Inventor: Ulf Hellman