Patents Assigned to Corning Incorporate
  • Method of forming alternating-flow heat exchangers
    Patent number: 5373634
    Abstract: A method for preparing a alternating-flow heat exchanger is disclosed, in which a ceramic structure is provided having straight, open-ended passageways therethrough. Channels or orifices are drilled into the side of the structure, into and transverse to some of the passageways, and the open ends of these passageways are then plugged. The ceramic materials is fired for a temperature and for a time sufficient to form a monolithic ceramic alternating-flow structure.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: December 20, 1994
    Assignee: Corning Incorporate
    Inventor: G. Daniel Lipp
  • Method for making semi-permeable polymer membranes
    Patent number: 5275766
    Abstract: A method for making a semi-permeable microporous polymer sheet, useful as a separation membrane or the like, including extruding a melt-blended mixture of a high-temperature thermoplastic polymer and a leachable glass to form sheet and then leaching the glass from the sheet to leave a microporous relict polymer network, wherein the permeability of the sheet is improved by plasma-etching the surface of the sheet before or after leaching. Hydrophilic or hydrophobic porous membranes may be provided.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: January 4, 1994
    Assignee: Corning Incorporate
    Inventors: Kishor P. Gadkaree, Leroy S. Hersh