Patents by Inventor Margaret M. Lowan

Margaret M. Lowan 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).

  • Automated clamping control mechanism and clamping method for fluid mixers
    Patent number: 7896540
    Abstract: Disclosed herein is a system and method for adequately securing the currently available metal and plastic containers for paint and other fluids as well as other foreseeable containers in an automated fashion without crushing or damaging the containers, without using any special adapters for particular container types and without operator intervention. To avoid crushing a plastic container, the disclosed system and method takes advantage of the compressibility of these less rigid plastic containers. It has been found that a plastic paint container can be safely clamped in place without structural damage if the clamp plate travel after engagement with the top of the container is limited to a certain value, for example, about 5/16?. When the compression amount if limited or controlled, the plastic container will not move or will move very little during a three minute violent shake cycle. Some conventional containers are not readily compressible, such a metal cans, drums or the larger (five gal.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: March 1, 2011
    Assignee: Fluid Management Operations, LLC
    Inventors: Margaret M. Lowan, Steven Page
  • Fluid dispensers
    Patent number: 6540486
    Abstract: A fluid dispense system having a computer control system that operatively controls a stepper motor driving a nutating pump. The stepper motor actuates the nutating pump piston through partial revolutions. The computer control system determines the number of stepper motor steps required to pump a desired amount of fluid by the nutating pump by rotating the piston through segments which are less than a full revolution.
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: April 1, 2003
    Assignees: Fluid Management, Inc., Micropump, Inc.
    Inventors: Thomas J. Amsler, Tim Hogan, Margaret M. Lowan, James Martin, William A. Miller, Susan G. McDermott, Jeffrey G. Barton, Charles F. Carr
  • Fluid dispensers
    Patent number: 6398513
    Abstract: A fluid dispense system having a computer control system that operatively controls a stepper motor driving a nutating pump. The stepper motor actuates the nutating pump piston through partial revolutions. The computer control system determines the number of stepper motor steps required to pump a desired amount of fluid by the nutating pump by rotating the piston through segments which are less than a full revolution.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: June 4, 2002
    Assignees: Fluid Management, Inc., MicroPump, Inc.
    Inventors: Thomas J. Amsler, Tim Hogan, Margaret M. Lowan, James Martin, William A. Miller, Susan G. McDermott, Jeffrey G. Barton, Charles F. Carr
  • Fluid dispensers
    Publication number: 20020057970
    Abstract: A fluid dispense system having a computer control system that operatively controls a stepper motor driving a nutating pump. The stepper motor actuates the nutating pump piston through partial revolutions. The computer control system determines the number of stepper motor steps required to pump a desired amount of fluid by the nutating pump by rotating the piston through segments which are less than a full revolution.
    Type: Application
    Filed: August 2, 2001
    Publication date: May 16, 2002
    Applicant: Fluid Management, Inc.
    Inventors: Thomas J. Amsler, Tim Hogan, Margaret M. Lowan, James Martin, William A. Miller, Susan G. McDermott, Jeffrey G. Barton, Charles F. Carr