Patents by Inventor Per Sundstrom

Per Sundstrom 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: 8265978
    Abstract: In a computerized system and method for scheduling medical procedures implemented by a number of medical apparatuses in a clinic or hospital, an exam or therapy is scheduled using a particular medical apparatus with a set time duration, and the exam or therapy is conducted and the actual time duration occupied by the medical apparatus to conduct the exam or therapy is recorded. The time durations for each medical procedure conducted by each medical apparatus are entered into and stored in a statistical data base. A scheduling computer has access to this statistical data base, and the next exam or therapy for the same apparatus is then scheduled using a time duration that is statistically updated based on the statistical compilation in the data base.
    Type: Grant
    Filed: September 22, 2005
    Date of Patent: September 11, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Kenneth Danehorn, Per Sundström
  • Publication number: 20080061105
    Abstract: The invention relates to an electrically powered tool for fastening elements and comprising a moving shuttle (10) connected to a driver (13), and an actuator motor having at least two electromagnetic yoke assemblies (8, 9), cooperating with said shuttle (10) which is arranged to be displaced in relation to said yoke assemblies (8, 9), wherein each yoke assembly (8, 9) has electric coils (15) arranged for generating a magnetic field through the shuttle (10), and a control unit which controls the current in the coils (15) to generate a magnetic field so that a force is generated for displacing said shuttle (10). According to the invention, the yoke assemblies (8, 9) are arranged for generating a magnetic field which is directed generally perpendicular to the direction of movement of said shuttle (10).
    Type: Application
    Filed: June 17, 2005
    Publication date: March 13, 2008
    Inventors: Jonas Zachrisson, Per Sundstrom
  • Publication number: 20070067194
    Abstract: In a computerized system and method for scheduling medical procedures implemented by a number of medical apparatuses in a clinic or hospital, an exam or therapy is scheduled using a particular medical apparatus with a set time duration, and the exam or therapy is conducted and the actual time duration occupied by the medical apparatus to conduct the exam or therapy is recorded. The time durations for each medical procedure conducted by each medical apparatus are entered into and stored in a statistical data base. A scheduling computer has access to this statistical data base, and the next exam or therapy for the same apparatus is then scheduled using a time duration that is statistically updated based on the statistical compilation in the data base.
    Type: Application
    Filed: September 22, 2005
    Publication date: March 22, 2007
    Inventors: Kenneth Danehorn, Per Sundstrom
  • Patent number: 6692110
    Abstract: A developing system for a bore matrix in a printer using toner in the form of a dry toner powder, and comprising a feeder brush (3) which receives toner from a toner container (1), a printer brush (5) receiving toner from the toner feeder brush (3) and transporting same through bores of a bore matrix (8) and down to a document (9) to be printed, and means (15) for charging the toner particles by mechanically rubbing the toner particles (2) against the printer brush (5), and in which a means (19) may be provided for ripping free the charged toner particles (2), so that said particles form a cloud (7) of charged toner particles (2) adjacent the bore matrix (8), which pass down to the document (9) to be printed through open bores of the bore matrix (8).
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: February 17, 2004
    Assignee: Jarfalla Digital Filter Printer AB
    Inventor: Per Sundström
  • Patent number: 6572219
    Abstract: Print head for electrostatic printing of documents in accordance with the so called aperture technique (DFC=Digital Control Filter) comprising means (14, 16, 17) for charging toner particles (2) with a certain polarity, a toner depositing matrix (3), which is provided with a number of toner depositing apertures (6), through which toner particles (2) are able to pass, means (5, 8) for controlling the deposit of toner particles to certain predetermined deposit positions, and means for feeding a document (7) to be printed below the toner deposit matrix (3). The means for charging the toner particles (2) with a certain polarity comprise two co-operating brushes, viz.
    Type: Grant
    Filed: June 6, 2002
    Date of Patent: June 3, 2003
    Assignee: Digital Filter Printing AB
    Inventor: Per Sundström
  • Patent number: 6406132
    Abstract: A printing apparatus includes heat treatment element, a rotatable feeder roll chargeable to a predetermined first potential, a support roll chargeable to a predetermined second potential, and a matrix in the form of a flexible printing circuit. The matrix has supply apertures, each supply aperture having a first inner diameter and being surrounded by an electrically conducting control ring configured to be charged to a predetermined third potential and having a second inner diameter. The third potential is selected to control corresponding supply apertures between an open state and a closed state. The matrix has an upper surface which is covered with a protective layer having through holes, each through hole having a second diameter which is at least equal to the inner diameter of the control rings. The protective layer includes a non-magnetic metal. The matrix and the control rings are covered, at upper surfaces and bore edges, with an electrically insulating layer.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: June 18, 2002
    Assignee: Array Printers AB
    Inventor: Per Sundström
  • Patent number: 6260955
    Abstract: A printing apparatus includes heat treatment means, a rotatable feeder roll chargeable to a predetermined first potential, a support roll chargeable to a predetermined second potential, and a matrix in the form of a flexible printing circuit. The matrix has supply apertures, each supply aperture having a first inner diameter and being surrounded by an electrically conducting control ring configured to be charged to a predetermined third potential and having a second inner diameter. The third potential is selected to control corresponding supply apertures between an open state and a closed state. The first inner diameter of the control ring is at least equal to the second inner diameter of the supply aperture. The matrix and the electrically conducting control rings are covered on upper surfaces and aperture edges with an electrically insulating layer.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: July 17, 2001
    Assignee: Array Printers AB
    Inventor: Per Sundström
  • Patent number: 4981716
    Abstract: A method for providing a metal substrate with an impact resistant surface is disclosed. The surface of the substrate is exposed to high intensity laser radiation to melt a spot of the surface. Particles of a material such as WC are injected into the melt.In order to enhance the percentage of particles in the surface, thus increasing the wear resistance, there is a forced reflection of stray particles back toward the melted spot.Further a fixture for holding the substrate, comprising the essential reflection surfaces for achieving the desired back reflection is described as well as a device for carrying out the method.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: January 1, 1991
    Assignee: International Business Machines Corporation
    Inventor: Per Sundstrom