Patents by Inventor John A. Fillar

John A. Fillar 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).

  • Method for manufacturing a high strength, non-metallic transmission chain
    Patent number: 5215616
    Abstract: A link assembly for a lightweight, non-metallic, conveyor or load transmission chain having significantly greater strength and other performance improvements compared to previous non-metallic chain links is disclosed. Each link assembly includes: a pair of identical sidebars each comprised of high-strength filamentary material wound in an elongated loop configuration and fixed in a matrix of hardened resin; a connecting pin having a stiff reinforced composite core and a skin-tight sleeve of non-abrasive material; low friction bushing means between the sidebars and connecting pin; and retaining means for holding the assembly together.Methods of making the unique sidebar and connecting pin components are also disclosed.
    Type: Grant
    Filed: March 11, 1992
    Date of Patent: June 1, 1993
    Assignee: Envirex Inc.
    Inventor: John A. Fillar
  • High strength, non-metallic transmission chain
    Patent number: 4932927
    Abstract: A link assembly for a lightweight, non-metallic, conveyor or load transmission chain having significantly greater strength and other performance improvements compared to previous non-metallic chain links is disclosed. Each link assembly includes: a pair of identical sidebars each comprised of high-strength filamentary material wound in an elongated loop configuration and fixed in a matrix of hardened resin; a connecting pin having a stiff reinforced composite core and a skin-tight sleee of non-abrasive material; low friction bushing means between the sidebars and connecting pin; and retaining means for holding the assembly together.Methods of making the unique sidebar and connecting pin components are also disclosed.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: June 12, 1990
    Assignee: Envirex Inc.
    Inventor: John A. Fillar
  • Non-metallic chain including wound composite chain links and molded pins
    Patent number: 4863418
    Abstract: A link assembly for a lightweight, non-metallic, conveyor or load transmission chain having significantly greater strength and other performance improvements compared to previous non-metallic chain links is disclosed. Each link assembly includes a pair of identical sidebars each comprised of high-strength filamentary material wound in an elongated loop configuration and fixed in a matrix of hardened resin and a connecting pin having a stiff reinforced composite core and a surrounding sleeve of low friction wear resistant material.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: September 5, 1989
    Assignee: Envirex Inc.
    Inventors: John A. Fillar, Thomas J. Casper, James H. Wiegand