Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
128 words
In a fireplace heat exchanger assembly: (a) a conduit having an air inlet and an air outlet located outwardly of the fireplace, the conduit including: 1. a duct frame disposed externally at the top and sides of the fireplace, the air inlet and air outlet being located in the duct frame, and 2. a passage communicating with the duct frame and air inlet and extending rearwardly into the fireplace, and thence extending forwardly of the fireplace and communicating with the duct frame and air outlet, and (b) blower means introducing air through the air inlet, into and through the duct frame, and passing the air through the passage and back into and through the duct frame, and discharging the air from the duct frame through the air outlet.
Claim 2
Dependent Claim
128 words
In a fireplace heat exchanger assembly: (a) a conduit having an air inlet and an air outlet located outwardly of the fireplace, the conduit including: 1. a duct frame disposed externally at the top and sides of the fireplace, the air inlet and air outlet being located in the duct frame, and 2. a passage communicating with the duct frame and air inlet and extending rearwardly into the fireplace, and thence extending forwardly of the fireplace and communicating with the duct frame and air outlet, and (b) blower means introducing air through the air inlet, into and through the duct frame, and passing the air through the passage and back into and through the duct frame, and discharging the air from the duct frame through the air outlet.
Claim 3
Dependent Claim
50 words
A fireplace heat exchanger assembly as defined in claim 1, in which: (c) an auxiliarly duct is interconnected with the duct frame externally of the fireplace, downstream of the connection of the passage extending forwardly of the fireplace with the duct frame for delivering heated air to a remote location.
Claim 4
Dependent Claim
111 words
A fireplace heat exchanger assembly as defined in claim 1, in which: (c) the conduit includes a heat exchanger box of relatively smaller height than width and length, the box providing the first and second passages, and a second transverse passage interconnecting the first and second passages at the rear of the box, the first and second passages being interconnected with the duct frame at the front of the box, (d) the air inlet in the duct frame communicates with and through the duct frame upstream of the first passage, and (e) the air outlet in the duct frame communicates with and through the duct frame downstream of the second passage.
Claim 5
Dependent Claim
45 words
A fireplace heat exchanger as defined in claim 3, in which: (f) an auxiliary duct is interconnected with the duct frame externally of the fireplace, downstream of the second passage for delivering heated air through the duct frame and auxiliarly duct to a remote location.
Claim 6
Dependent Claim
158 words
A fireplace heat exchanger assembly as defined in claim 1, in which: (c) the conduit includes a heat exchanger box having angularly related portions of relatively smaller height than width and length, the box providing the first passage that extends downwardly and rearwardly at an angle to the vertical at the rear of the fireplace, the second passage that extends upwardly and forwardly at an angle to the vertical at the rear of the fireplace, and a transverse passage interconnecting the first and second passages at the bottom rear of the fireplace, the first and second passages being interconnected with the duct frame at the front of the box, (d) the air inlet in the duct frame communicates with and through the duct frame with the first passage upstream of the first passage, and (e) the air outlet in the duct frame communicates with and through the duct frame with the second passage downstream of the second passage.
Claim 7
Dependent Claim
45 words
A fireplace heat exchanger as defined in claim 5, in which: (f) an auxiliary duct is interconnected with the duct frame externally of the fireplace, downstream of the second passage for delivering heated air through the duct frame and auxiliary duct to a remote location.