Patents by Inventor Clifford M. Vogt

Clifford M. Vogt 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: 4925601
    Abstract: A process for making a melt-blown nonwoven polymeric web for use as a liquid filter medium includes increasing the air (fluid) flow and the forming distance to produce a filter medium that is more bulky and more permeable and therefore resists plugging. The melt-blown process parameters include a polymer through-put between 1.8 and 2.9 PIH, a polymer melt temperature between and F., and air flow rate between 200 and 265 SCFM per square inch, air temperature between and F., forming distance between 12 and 23 inches, and a collector vacuum between 0.5 and 1.0 inch of water.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: May 15, 1990
    Assignee: Kimberly-Clark Corporation
    Inventors: Clifford M. Vogt, Nancy D. Twyman, Roe C. Allen, Jr.
  • Patent number: 4824451
    Abstract: HEPA or pre-HEPA filter media are made by forming a web of melt-blown polypropylene fibers. The melt-blown process is accomplished at a low through-put of about 1 pound per inch of die width per hour and at a high fluid flow rate of about 250 to 325 standard cubic feet per minute. The resulting web has fibers with an average diameter of about 5 microns and surface pores of less than 30 microns in size. By cold calendering the web with pressure of between 100 and 300 psi, further filter efficiency can be achieved. The resulting calendered web has surface pore sizes less than 20 microns.
    Type: Grant
    Filed: September 21, 1987
    Date of Patent: April 25, 1989
    Assignee: Kimberly-Clark Corporation
    Inventors: Clifford M. Vogt, Peter W. Shipp, Jr.
  • Patent number: 4714647
    Abstract: A filter medium is formed by sequentially depositing layers of melt-blown thermoplastic fibers, having the same composition but different sizes, onto a collector. The resulting laminate web has a fiber size gradient across its depth so that the large particulate can be trapped across the filter's depth without prematurely plugging the fine fiber, high efficiency layers.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: December 22, 1987
    Assignee: Kimberly-Clark Corporation
    Inventors: Peter W. Shipp, Jr., Clifford M. Vogt
  • Patent number: 4689058
    Abstract: A composite stove hood filter consists of a primary metal mesh filter and a nonwoven, secondary disposable filter. The secondary filter is a low basis weight (0.2 oz./yd..sup.2 to 1.0 oz./yd..sup.2) spun-bonded polymer sheet which is attached to the primary filter by means of elastic bands or Velcro strips. A patch of melt-blown polymer material, impregnated with air freshener, may be attached to the spun-bonded sheet of the secondary filter to freshen the air as it is filtered.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: August 25, 1987
    Assignee: Kimberly-Clark Corporation
    Inventors: Clifford M. Vogt, Peter W. Shipp, Jr., Cynthia C. Pendley
  • Patent number: 4333979
    Abstract: Lightweight, pattern bonded, generally continuous filament web having physical, aesthetic, and functional attributes particularly desirable for liner material for disposable absorbent products such as diapers, sanitary napkins, and the like. In accordance with a preferred embodiment of the invention, a continuous filament polypropylene web is formed and pattern bonded by heat and pressure producing a high frequency of high density bond areas. This bonded web is then subjected to hot embossing in a gross pattern producing permanent web deformation and increasing the web effective thickness. In use the nonwoven web of the invention provides a very soft, flexible web having a pleasing appearance and yet retaining strength properties making it very effective at low basis weights for applications such as liners for disposable diapers, sanitary napkins, and the like.
    Type: Grant
    Filed: August 18, 1980
    Date of Patent: June 8, 1982
    Assignee: Kimberly-Clark Corporation
    Inventors: Michael A. Sciaraffa, David G. Thome, Clifford M. Vogt
  • Patent number: 3932682
    Abstract: Novel products are described which possess a capability of transmitting air and moisture vapor, are waterproof, and have fabric-like aesthetic properties. These products may have applications such as rainwear material, tent material, garment liners, and shoe liners. These products may be made by spray spinning filamentary polymer material onto open-celled polymer film, or onto non-cellular elastic polymer film with the additional steps of stretching and heat setting creating a stable open-celled structure in the film portion of the product. Subsequent calendering of the product may further improve its fabric-like aesthetic properties.
    Type: Grant
    Filed: April 26, 1972
    Date of Patent: January 13, 1976
    Assignee: Celanese Corporation
    Inventors: John T. Loft, Steven G. Plovan, Clifford M. Vogt