Patents Assigned to Aspen Industries, Inc.
  • Patent number: 4888664
    Abstract: The apparatus disclosed provides both an airtight seal and a means for controlling and distributing the cooling airflow delivered to the electronic unit mounted on the avionic tray. A one piece, jointless gasket of uniform thickness is compressed between the tray, having an entirely flat bottom surface, and the detachable metering plate. The overlap created by a diffrential in the size of the airflow orifice for the tray and the airflow orifice for the gasket enables the gasket, when compressed by a plurality of flat head screws, to protrude above the equipment mounting surface on the tray. This protruding portion of the gasket engages the electronic unit when it is mounted on the tray effecting an airtight seal. The apparatus provides a highly reliable, readily interchangeable, and cost effective cooling airflow coupling for avionic trays.
    Type: Grant
    Filed: July 5, 1988
    Date of Patent: December 19, 1989
    Assignee: Aspen Industries, Inc.
    Inventor: Karl J. Rojc
  • Patent number: 3946902
    Abstract: An automatic feeder for infusing solid solutes into liquid solvents at an adjustable, predetermined, controlled rate to maintain an adjustable, predetermined, controlled concentration of solute in a solvent reservoir, the feeder including means for adjustably controlling the rate of infusion of solute into a circulating, solvent stream within a chamber by controlling the quantity of solvent in the chamber as well as surface area of solute immersed in the solvent, means for feeding solute into the solvent in the chamber in a programmed fashion over a relatively long period of time without attendance, means for preventing accidental syphoning of all of the solvent from the feeder, and means for automatically breaking contact between the solute and the solvent in the feeder during periods of dissolution; the feeder comprising a housing having solvent inlet and outlet ports, a float valve for adjustably controlling the level of solvent circulating in the housing; and an anti-syphoning device on the float valve to
    Type: Grant
    Filed: September 12, 1972
    Date of Patent: March 30, 1976
    Assignee: Aspen Industries, Inc.
    Inventor: Frank N. Stepanek, Jr.
  • Patent number: D318597
    Type: Grant
    Filed: September 29, 1989
    Date of Patent: July 30, 1991
    Assignee: Aspen Industries, Inc.
    Inventor: Sarge Schultz