Patents Assigned to Production Systems, Inc.
  • Patent number: 8393626
    Abstract: The present invention generally relates to the use of EPDM (ethylene-propylene diene monomer) polymer compounds used in place of NR (natural rubber), SBR (styrene butadiene rubber), polyisoprene and other polymers in energy absorption elastomeric systems. In one embodiment a method of continuously manufacturing an EPDM based compound cured via a peroxide based cure system and used in an energy absorption elastomeric system is disclosed. The method includes the steps of forming a continuous part from a compound based on ethylene-propylene diene terpolymer and then curing the part via a continuous process and optionally cutting the final part to the appropriate length. Various advantages are achieved via the use of peroxide cured EPDM as replacements for NR, SBR, polyisoprene and other polymers.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 12, 2013
    Assignee: Production Systems, Inc.
    Inventors: Frederick E. Pedersen, Eldon S. Eady
  • Publication number: 20100093921
    Abstract: The present invention generally relates to the use of EPDM (ethylene-propylene diene monomer) polymer compounds used in place of NR (natural rubber), SBR (styrene butadiene rubber), polyisoprene and other polymers in energy absorption elastomeric systems. In one embodiment a method of continuously manufacturing an EPDM based compound cured via a peroxide based cure system and used in an energy absorption elastomeric system is disclosed. The method includes the steps of forming a continuous part from a compound based on ethylene-propylene diene terpolymer and then curing the part via a continuous process and optionally cutting the final part to the appropriate length. Various advantages are achieved via the use of peroxide cured EPDM as replacements for NR, SBR, polyisoprene and other polymers.
    Type: Application
    Filed: October 13, 2009
    Publication date: April 15, 2010
    Applicant: PRODUCTION SYSTEMS, INC.
    Inventors: Frederick E. Pedersen, Eldon S. Eady
  • Patent number: 4618057
    Abstract: An articulated conveyor comprising a conventional endless-loop chain-link conveyor belt traveling over a fixed frame section, an adjustable frame section mounted for translational movement on a guide carrier, and a floating frame section pivotably mounted to connect the fixed section to the adjustable section. The guide carrier permits translational movement of the adjustable frame section in a direction perpendicular to the longitudinal axes of the adjustable frame section and the fixed frame section to provide parallel offset of the adjustable section with respect to the fixed section. Longitudinal guide slots in the upper and lower faces of the three frame sections engage center tabs on the bottom of the belt to guide the belt for travel along the frame sections.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: October 21, 1986
    Assignee: Production Systems, Inc.
    Inventor: M. Gene Howser