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US 4,535,752 AGranted
Fireplace cross-circulating air heater
OwnerBunyan B. Cagleinventor
Life of this patent
Estimating the term…
Abstract
A fireplace heater has a pair of pluralities of heat exchanger tubes passing air in opposite directions across a fireplace. A first plurality of the heat exchanger tubes passes air from a left blower and duct means to a right duct means which discharges the air on the right side of the fireplace. The other plurality of heat exchanger tubes pass the air from a right blower and duct means to the left duct means which discharges the air on the left side of the fireplace.
Claims6
A fireplace cross-circulating air heater comprising
- a first plurality of parallel heat exchanger tubes,
- a second plurality of parallel heat exchanger tubes,
- said first and second plurality of tubes being disposed coplanar with a horizontal plane and adapted to extend horizontally across a fireplace,
- left and right blowers,
- left duct means for directing air from the left blower to left ends of and through said first plurality of tubes,
- right duct means for directing air from the right blower to right ends of and through said second plurality of tubes,
- said left duct means including left chambers means receiving air from the left ends of said second plurality of tubes for delivery to a room, and
- said right duct means including right chamber means receiving air from the right ends of said first plurality of tubes for delivery to the room,
- said left and right blowers providing input air from opposite sides of the heater and said left and right chamber means delivering output air to reverse opposite sides of the heater.
6 more elements
A fireplace cross-circulating air heater comprising
- first and second pluralities of parallel heat exchanger tubes extending horizontally across a fireplace and being coplanar with a horizontal plane,
- left and right blowers,
- left duct means for directing air from the left blower to left ends of the first plurality of heat exchanger tubes and for directing air from left ends of the second plurality of heat exchanger tubes into a room,
- said left duct means including a left horizontal rearward extending duct supporting and attached to the left ends of the first and second pluralities of heat exchanger tubes, and a partition dividing the left horizontal duct into first and second portions communicating with the respective first and second pluralities of heat exchanger tubes,
- right duct means for directing air from the right blower to right ends of the second plurality of heat exchanger tubes and for directing air from right ends of the first plurality of heat tubes into the room,
- said right duct means including a right horizontal rearward extending duct supporting and attached to the right ends of the first and second pluralities of heat exchanger tubes, and a partition dividing the right horizontal duct into first and second portions communicating with the respective first and second pluralities of heat exchanger tubes,
- the first portions of the left and right horizontal ducts defining lower forward portions of the horizontal ducts,
- the second portions of the left and right horizontal ducts including rear portions and upper forward portions of the horizontal ducts, the upper forward portions extending above said lower forward portions,
- the left and right duct means also including left and right vertical ducts having lower portions on left and right sides of forward end portions of the respective left and right horizontal ducts, one of the vertical ducts communicating with the upper forward portion of one of the horizontal ducts, and the other of the vertical ducts communicating with the lower forward portion of the other horizontal duct,
- a corresponding one of said left and right blowers communicating with the lower forward portion of the one horizontal duct,
- the corresponding other of the left and right blowers communicating with the upper forward portion of the other horizontal duct, and
- said vertical ducts having openings communicating with the room.
9 more elements
Dependencies are inferred from the claim text.