Patents Assigned to Hollingsworth & Vosa Company
  • Filter media
    Patent number: 6858057
    Abstract: A filter media comprising a synthetic microfiber polymer fine fiber web wherein the diameter of the fibers is between about 0.8 to about 1.5 microns. The filter media is acceptable for use in ASHRAE applications. Constructions with a low DP backing, support or prefilter layers of coarse fiber provide large area filter webs of high efficiency and a stable and high threshold value of alpha above eleven.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 22, 2005
    Assignee: Hollingsworth & Vosa Company
    Inventor: David Thomas Healey