Stoves and furnaces – Fireplaces or accessories – Front barrier or guard
Reexamination Certificate
2007-09-20
2010-02-02
McAllister, Steven B (Department: 3749)
Stoves and furnaces
Fireplaces or accessories
Front barrier or guard
C126S545000, C126S190000, C126S200000, C126S500000, C110S17300B, C110S182000, C110S180000, C277S628000, C277S590000
Reexamination Certificate
active
07654259
ABSTRACT:
A fireplace comprised of a burning chamber having an opening to a room and a vertically lifting door having a top edge, a bottom edge and opposing side edges. The door narrows in width from the top edge to the bottom edge to provide a keystone-shaped door. A frame is fitted in front of the burning chamber. The frame includes guide tracks configured to accept the edges of the door. A drive mechanism is provided to raise and lower the door within the guide tracks. The guide tracks may further incorporate a high temperature gasket to prevent airflow and promote energy efficiency when the door is closed.
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Ference Thomas G.
Mashruwala Nikhil
McAllister Steven B
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