Patents by Inventor Frederick E. Schuler

Frederick E. Schuler 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).

  • Compact dust filter assembly
    Patent number: 4395269
    Abstract: An air filter assembly (10) is disclosed which includes a dirty air chamber (22) having an air inlet (20) and a plurality of clean air outlets (34). In fluid communication with each air outlet (34) in the dirty air chamber (22) is a pleated media filter element (32) positioned so as to be suspended in a cantilever manner at an acute angle with respect to a horizontal plane. A distribution space (33) for reducing entering air velocities is created by the inclined uppermost filter elements (32) and the horizontal plane of the top surface panel (16). The lowermost portion (25) of the dirty air chamber (22) provides a collection area for particulate matter removed from the filter elements. The lowermost portion (25) includes a sloping surface (24) constructed of a material which flexes in response to pressure increases within the chamber (22).
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: July 26, 1983
    Assignee: Donaldson Company, Inc.
    Inventor: Frederick E. Schuler
  • Filter element support member
    Patent number: 4171963
    Abstract: A filter element support assembly for use with hollow, cylindrical, pleated media filter elements is disclosed. The filter elements are placed on the support in end-to-end abutting relationship. The support includes a plurality of baffle plates in parallel spaced relationship, which isolate the interior chamber of each filter element from those of the support assembly into the interior chambers of the filter elements. The tubes are not only the primary structural members of the assembly, but also serve the dual function of providing a means of fluid communication between each isolated filter element chamber and a clean air plenum and source of compressed air, and of guiding and positioning the filter elements in their proper locations.
    Type: Grant
    Filed: February 1, 1978
    Date of Patent: October 23, 1979
    Assignee: Donaldson Company, Inc.
    Inventor: Frederick E. Schuler
  • Suspension gasket seal and system for baghouse filter units
    Patent number: 4159197
    Abstract: An improved gasket means for suspending a filter element from a venturi air nozzle in a dust collector. The gasket means is an annular member of elastomeric material and has an annular recess in the inner side wall in which is received the flared bottom lip of the venturi air nozzle. The annular recess is disposed between first and second rim portions. The annular member has an inside diameter at the second rim portion greater than the inside diameter at the second rim portion. The gasket means includes a structure for securing a filter element to the annular member.
    Type: Grant
    Filed: October 5, 1977
    Date of Patent: June 26, 1979
    Assignee: Donaldson Company, Inc.
    Inventors: Frederick E. Schuler, Robert A. Skuster