Patents Assigned to Osprey, Inc.
  • Filtration system and method
    Patent number: 8679236
    Abstract: Described are multi-stage drum filtration systems including a primary rotary drum filter stage, at least one passive filter stage, and a main fan configured to create a vacuum on an inlet side of the primary rotary drum filter stage. The multi-stage drum filtration system may also include a HEPA filter stage. A controller may be configured to control a speed of the main fan to maintain an inlet vacuum to the primary rotary drum filter stage that corresponds to an inlet vacuum set point input.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: March 25, 2014
    Assignee: Osprey, Inc.
    Inventor: Todd Dietz
  • Filtration system and method
    Patent number: 8597391
    Abstract: Described are multi-stage drum filtration systems including a primary rotary drum filter stage, at least one passive filter stage, and a main fan configured to create a vacuum on an inlet side of the primary rotary drum filter stage. The multi-stage drum filtration system may also include a HEPA filter stage. A controller may be configured to control a speed of the main fan to maintain an inlet vacuum to the primary rotary drum filter stage that corresponds to an inlet vacuum set point input.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: December 3, 2013
    Assignee: Osprey, Inc.
    Inventor: Todd Dietz