Patents by Inventor Rodney C. Irwin

Rodney C. Irwin 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: 4417952
    Abstract: An apparatus for cleaning the top or bottom horizontal section of a coke oven door seal ring and which applies approximately constant pressure to all points along its lateral path. A cleaning head is pivotally mounted on the terminal end of an arm member which is, itself, pivotally mounted to oscillate in a horizontal arc on a base structure. An extension of the door cleaner frame is suspended above the arm and on this frame there is mounted a spring. A vertical, spring driven link is attached at its upper terminal end to this spring and at its lower end to the base. This link is also medially attached to the frame so as to pivot in a vertical arc about this point of attachment. A second idler link which is pivotally connected at its top to the frame and at its bottom to the pivoting base keeps the cleaning head from being vertically displaced out of contact with the seal ring.
    Type: Grant
    Filed: December 28, 1981
    Date of Patent: November 29, 1983
    Assignee: Koppers Company, Inc.
    Inventor: Rodney C. Irwin
  • Patent number: 4372819
    Abstract: A projectable device for aligning rail mounted equipment with track side structures, and, in particular, for aligning a coke oven door extractor, pusher ram, or jamb cleaner with a coke oven door. In one embodiment, a rod having an attached terminal fork is extended horizontally toward the door so as to indicate alignment when an attached aligning plate is engaged by the fork. The rod projects from a piston and cylinder combination, and it is automatically withdrawn if alignment is correct. In a second embodiment, an arm having an attached terminal fork is swung downwardly in a vertical arc to engage the aligning plate and thereafter automatically returned to its initial, vertical position, if alignment is correct.
    Type: Grant
    Filed: March 22, 1982
    Date of Patent: February 8, 1983
    Assignee: Koppers Company, Inc.
    Inventor: Rodney C. Irwin
  • Patent number: 4336107
    Abstract: A projectable device for aligning rail mounted equipment with track side structures, and, in particular, for aligning a coke oven door extractor, pusher ram, or jamb cleaner with a coke oven door. In one embodiment, a rod having an attached terminal fork is extended horizontally toward the door so as to indicate alignment when an attached aligning plae is engaged by the fork. The rod projects from a piston and cylinder combination, and it is automatically withdrawn if alignment is correct. In a second embodiment, an arm having an attached terminal fork is swung downwardly in a vertical arc to engage the aligning plate and thereafter automatically returned to its initial, vertical position, if alignment is correct.
    Type: Grant
    Filed: September 2, 1981
    Date of Patent: June 22, 1982
    Assignee: Koppers Company, Inc.
    Inventor: Rodney C. Irwin
  • Patent number: 4000043
    Abstract: A cleaning tool for door jamb surfaces of a coke oven chamber includes: a sleeve fixed to a frame that is movable toward the door jamb; a plunger resiliently mounted in the sleeve; a support fixed to the plunger; and a multi-sided scraper tool rotatably mounted to the support. Two such cleaning tools may be used to clean the inside and the outside door jamb surfaces.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: December 28, 1976
    Assignee: Koppers Company, Inc.
    Inventor: Rodney C. Irwin