Hal A Vonsick

51258692, Jun 30, 1992

May 29, 1991

7/706941

Hal A. VonSick - Louisville KY

F23L 1710

454 4

A chimney cap to selectively cover the outlet from the flue of a chimney which includes an open frame of selected geometric configuration located at the top of the chimney flue around the outlet, a cap to substantially cover the opening defined by the frame, bias device to bias the cap to a position separated by the frame, where a seal is provided to seal the cap and the frame when the cap is located contiguous to the frame. A guide arrangement can be provided to guide the cap toward the frame to selectively locate the seal of the cap and seal surface of the frame. A draw device can be provided to pass through the chimney flue to allow the cap to be drawn to engagement with the frame and a latch can be provided to receive the draw device to hold the cap in engagement with the frame against the bias force.

55563295, Sep 17, 1996

Feb 23, 1995

8/393345

Hal A. VonSick - Louisville KY

Fireplace Technologies, Inc. - Louisville KY

F23L 1710

454 4

A chimney damper is provided with a locking mechanism which prevents the chimney damper from closing in the event of a chimney fire.

50800060, Jan 14, 1992

Feb 27, 1989

7/316021

Hal A. Vonsick - Louisville KY

F23L 1100

454 7

The present invention provides a new and useful arrangement for use in a pivotable chimney dampers of the type including a damper flap to selectively open and close the outlet from the flue of a chimney where the damper flap is pivoted and includes bias means to urge the damper flap to a normally open position with respect to a frame which surrounds the flue when the damper is unrestrained and where a flexible connection is provided to be attached at a first location to the damper flap to pull the damper flap to a closed position against the frame member when the pull means is drawn tight. An expansible spring means can be attached between the damper flap and the pull means to be pulled to extended position when the damper flap is closed. In accordance with the present invention the flexible connector is joined to the pull at a location below the spring and a bracket is provided to extend outwardly from the inside of the flue and has a guide to receive the flexible connector to direct the flexible pull so the damper flap at a second location pulling the flexible connector urges the damper toward open position where the length of the flexible connector is such that upon selected extension of spring means the flexible connector becomes taught and the force exerted on the second location is in excess of the force exerted on the first location so the damper flap is urged toward open position.