Patents by Inventor Carl F. Piontkowski

Carl F. Piontkowski 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: 4827852
    Abstract: A catalytic combustor wood stove is presented having a combustor ignitor plate which promotes turbulence and mixing of combustion gases with air from a distributed primary air supply to deliver thoroughly mixed gas to the catalytic combustor to light off the combustor at low firebox temperature (in the range of 400.degree. to 500.degree. F.) but operate the combustor at high temperature on the order of 1000.degree. F. to 1200.degree. F. or higher.
    Type: Grant
    Filed: June 1, 1987
    Date of Patent: May 9, 1989
    Inventor: Carl F. Piontkowski
  • Patent number: 4550668
    Abstract: A combustor unit for a woodburning stove comprises a generally T-shaped flue assembly interiorly receiving a combustor having a catalyst to facilitate combustion of exhaust gases. The combustor is pivotal between a combustion position wherein the combustor is positioned across an exhaust passageway to an open position wherein the combustor is substantially removed from the exhaust gas stream and positioned within an access passageway.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: November 5, 1985
    Inventor: Carl F. Piontkowski
  • Patent number: 4320742
    Abstract: A damper adjusting mechanism is presented wherein the damper is opened and closed by adjusting a rod. This rod is adjusted by the use of grooves which are latched onto the stove's front wall. These grooves are protected from creosote build-up by a shield.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: March 23, 1982
    Assignee: C & D Distributors, Inc.
    Inventor: Carl F. Piontkowski
  • Patent number: 4221416
    Abstract: An apparatus for lifting logs from the ground to an elevated position in order to allow for cutting of the logs. The log lifter comprises a lever arm having one end thereof bent downwardly to form a leg, the leg having on the end thereof a detachable support tube which serves as a fulcrum about which the lever arm may pivot. The log lifting apparatus includes a first claw which is attached at the bend between the lever arm and the leg. The log lifting apparatus further includes a log gripping arm which is pivotably mounted with respect to the lever arm and which terminates in a second claw. To lift a log that is lying on the ground, the lever arm is held in the upright position and the log gripping arm is pivoted in the withdrawn position so as to be adjacent to the lever arm. The first claw is slipped under the log and the log gripping arm is then pivoted to provide for engagement of the log with the second claw. The lever arm is then pivoted, preferably by manual means, about the support tube.
    Type: Grant
    Filed: November 21, 1978
    Date of Patent: September 9, 1980
    Assignee: C & D Distributors, Inc.
    Inventors: Carl F. Piontkowski, Robert E. Brugger, Richard H. Bartley, Ernest J. Waldron, Jr.
  • Patent number: 4090271
    Abstract: A chimney cleaner designed to be lowered through a chimney from its upper end includes both scrubbing and chopping elements for removing soot, tar, mortar and the like from the chimney walls. The scrubbing elements are adjustable to suit various sizes of chimney flues and are so shaped and attached to a supporting frame as to be urged toward the chimney walls, by the weight of the cleaner as they encounter obstructions on the walls, to enhance their cleaning action.
    Type: Grant
    Filed: December 29, 1976
    Date of Patent: May 23, 1978
    Inventors: Carl F. Piontkowski, George L. Yarocki
  • Patent number: D258487
    Type: Grant
    Filed: November 21, 1978
    Date of Patent: March 10, 1981
    Assignee: C & D Distributors, Inc.
    Inventors: Robert E. Brugger, Richard H. Bartley, Ernest J. Waldron, Jr., Carl F. Piontkowski