Patents by Inventor Stephen C. Paspek, SR.

Stephen C. Paspek, SR. 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).

  • Processes for recycling carpet and products of such processes
    Patent number: 10376897
    Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: August 13, 2019
    Assignee: Shaw Indusries Group, Inc.
    Inventors: Joseph E. Bork, Stephen C. Paspek, Sr., Alan F. Schroeder, William H. Heise
  • PROCESSES FOR RECYCLING CARPET AND PRODUCTS OF SUCH PROCESSES
    Publication number: 20170333912
    Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
    Type: Application
    Filed: August 4, 2017
    Publication date: November 23, 2017
    Applicant: Shaw Industries Group, Inc.
    Inventors: Joseph E. BORK, Stephen C. PASPEK, SR., Alan F. SCHROEDER, William H. HEISE
  • Processes for recycling carpet and products of such processes
    Patent number: 9757875
    Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: September 12, 2017
    Assignee: Shaw Industries Group, Inc.
    Inventors: Joseph E. Bork, Stephen C. Paspek, Sr., Alan F. Schroeder, William H. Heise
  • PROCESSES FOR RECYCLING CARPET AND PRODUCTS OF SUCH PROCESSES
    Publication number: 20150057379
    Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
    Type: Application
    Filed: September 12, 2014
    Publication date: February 26, 2015
    Inventors: Joseph E. BORK, Stephen C. PASPEK, SR., Alan F. SCHROEDER, William H. HEISE
  • Processes for recycling carpet and products of such processes
    Patent number: 8864057
    Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: October 21, 2014
    Assignee: Shaw Industries Group, Inc.
    Inventors: Joseph E. Bork, Stephen C. Paspek, Sr., Alan F. Schroeder, William H. Heise
  • PROCESSES FOR RECYCLING CARPET AND PRODUCTS OF SUCH PROCESSES
    Publication number: 20130112727
    Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.
    Type: Application
    Filed: November 4, 2011
    Publication date: May 9, 2013
    Applicant: EASTMAN CHEMICAL COMPANY
    Inventors: Joseph E. Bork, Stephen C. Paspek, SR., Alan F. Schroeder, William H. Heise