Patents by Inventor Michael J. Haun

Michael J. Haun 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).

  • Patent number: 7416690
    Abstract: The invention provides a method to transform large quantities of fiber glass waste into useful ceramic products by a low-cost manufacturing process. The method consists of reducing the fiber glass waste into a glass powder; mixing the glass powder with additives into a glass-additives mixture; granulating the glass-additives mixture into granulated particles; forming the granulated particles into a green ceramic article; and heating the green ceramic article into the ceramic product. Water and clay can be included in the processing. Only one firing step is needed with a low peak firing temperature of about 700° C. to about 1000° C. The method conserves energy and natural resources compared to clay-based traditional ceramic manufacturing. High-quality impervious ceramic products can be produced by the invention.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: August 26, 2008
    Inventor: Michael J. Haun
  • Patent number: 7169725
    Abstract: The invention provides a method to transform large quantities of waste glass into useful ceramic products by a low-cost manufacturing process. The method improves green strength compared to previous methods, and does not require water or any other liquid solvent. Only one firing step is needed with a low peak firing temperature of about 700° C.to about 1000° C. The method conserves energy and natural resources compared to clay-based traditional ceramic manufacturing. High-quality impervious ceramic products can be produced by the invention.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: January 30, 2007
    Inventor: Michael J. Haun
  • Publication number: 20040255621
    Abstract: The invention provides a method to transform large quantities of waste glass into useful ceramic products by a low-cost manufacturing process. The method improves green strength compared to previous methods, and does not require water or any other liquid solvent. Only one firing step is needed with a low peak firing temperature of about 700° C. to about 1000° C. The method conserves energy and natural resources compared to clay-based traditional ceramic manufacturing. High-quality impervious ceramic products can be produced by the invention.
    Type: Application
    Filed: April 16, 2004
    Publication date: December 23, 2004
    Inventor: Michael J. Haun
  • Patent number: 5210057
    Abstract: An amorphous partially crystallizable alkaline earth zinc silicate glass containing ZrO.sub.2 and optionally small amounts of Al.sub.2 O.sub.3, HfO.sub.2, P.sub.2 O.sub.5 and TiO.sub.2.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: May 11, 1993
    Inventors: Michael J. Haun, Kenneth W. Hang, Arvind Halliyal
  • Patent number: 5137848
    Abstract: A dielectric composition comprising an admixture of finely divided particles of(a) 65-94 wt % of a non-reducing amorphous glass comprising of 15-27% ZnO, 8-30% alkaline earth metal oxides including 7-21% BaO, 40-60% SiO.sub.2, 3-14% Al.sub.2 O.sub.3, 0-5% PbO and 0.5-5% of a metal oxide selected from ZrO.sub.2, up to 2.5% P.sub.2 O.sub.5 and mixtures thereof, the composition being crystallizable and non-reducing when fired at 850.degree.-900.degree. C.(b) 30-5 wt % of a metal oxide of Al.sub.2 O.sub.3, ZrSiO.sub.4 and mixtures thereof,(c) 1-5 wt % of a metal oxide kerf additive of CoAl.sub.2 O.sub.4, Co/CrAl.sub.2 O.sub.4, CoO, CoCr.sub.2 O.sub.4, Cr.sub.2 O.sub.3, TiO.sub.2, and mixtures thereof,where the sum of the components a and b does not exceed 35% by weight of the total particulate admixture, and(d) optionally, 1-10 wt % of either a TCE reducing additive of zircon, mullite, silica, and mixtures thereof or a TCE increasing additive of CaZrO.sub.3, quartz, .alpha.-cristobalite and mixtures thereof.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: August 11, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Michael F. Barker, William A. Craig, Paul C. Donohue, Kenneth W. Hang, Michael J. Haun, Colin R. Pickering
  • Patent number: 4959330
    Abstract: A dielectric glass composition consisting essentially on a molar basis of 15-27% ZNO, 8-16% BaO, 40-60% SiO.sub.2, 3-14% Al.sub.2 O.sub.3, 0-5% PbO and 0.5-5% of a metal oxide selected from ZrO.sub.2, up to 2.5% P.sub.2 O.sub.5 and mixtures thereof, the composition being crystallizable and non-reducing when fired at 850.degree.-900.degree. C.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: September 25, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul C. Donohue, Kenneth W. Hang, Michael J. Haun
  • Patent number: 4728845
    Abstract: A composite of PZT (lead zirconate titanate) and a compliant polymer having 1-3-0 connectivity is described. A polymer self-connected in all three mutually perpendicular directions with a void in the center has an array of parallel PZT rod elements embedded therein and extending through the void. The void isolates a region of the PZT rods from the polymer. The axes of the PZT rods are along the direction of the poling electric field. Such an arrangement significantly enhances the hydrostatic piezoelectric charge and voltage coefficients d.sub.h and g.sub.h.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: March 1, 1988
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael J. Haun, Robert E. Newnham
  • Patent number: 4718896
    Abstract: A flow controller is provided that detects intervals between successive drops and responds to detection of intervals which are too long by shutting down operation of the administration set if the abnormal flow causing the long interval cannot be corrected. In response to detection of abnormal flow which is not clearly a high flow condition and/or an empty container, the flow controller sequentially opens, closes, re-opens and again closes the clamp of the controller in an attempt to restore normal flow. If normal flow is restarted before the sequence is completed, the controller returns to normal control of the fluid flow. Otherwise, completion of the sequence results in a shutdown of the system and activation of an alarm. In keeping with the invention, indicia are provided in connection with the drop chambers of the administration sets which are sensed by sensing means mounted to the drop detector of the flow controller in order to indicate to the controller the size of the orifice in the drop chamber.
    Type: Grant
    Filed: January 10, 1986
    Date of Patent: January 12, 1988
    Assignee: Abbott Laboratories
    Inventors: Robert G. Arndt, William Atkinson, Travis C. Carr, Michael J. Haun, Phillip Loeb, Stanley D'Souza
  • Patent number: 4613784
    Abstract: Piezoelectric PZT-polymer composites of 1-3 and 1-3-0 connectivity are trversely reinforced with glass fibers to increase the hydrostatic piezoelectric charge and voltage coefficients (d.sub.h and g.sub.h) for possible use in hydrophone applications. These composites consisted of a foamed (with porosity) or non-foamed (no porosity) polymer matrix with PZT rods aligned parallel to the poling direction and glass fibers in the remaining two transverse directions. Because of the small percentage of PZT required, these composites have densities near that of water, and much lower dielectric constants than solid PZT, resulting in large increases in the hydrostatic piezoelectric voltage coefficient g.sub.h. By increasing the d.sub.h and g.sub.h coefficients, the d.sub.h g.sub.h product, used as the figure of merit, is greatly enhanced.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: September 23, 1986
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Michael J. Haun, Robert E. Newnham, Walter A. Schulze