Back to results
US 4,183,348 AGranted
Fireplace front
OwnerJoseph O. Smithinventor
Life of this patent
Estimating the term…
Abstract
A fireplace front and method of making a fireplace front for closing a forward opening in a fire chamber, including: upper and lower sets of front and rear tracks, a pair of transparent, imperforate doors and a pair of perforate screen doors mounted on the front and rear tracks, respectively, for individual sliding movement between closed positions, in which they cover the opening and retracted positions. Enclosed pockets or wells are fixed to the tracks at opposite sides of the opening for receiving the doors when they are in the retracted positions.
Claims18
Apparatus for closing the front opening of a fireplace heat chamber comprising:
- a frame adapted to be mounted on the front of said heat chamber including
- upper and lower, generally parallel, longitudinally extending sets of front and rear tracks;
- closure walls spanning said upper and lower tracks on opposite ends of a central opening adapted to be aligned with said front opening, and defining enclosed door receiving pockets on opposite ends of said central opening, said closure walls including front and rear walls spanning the upper ends of the front and rear sides of said tracks, at least said front wall being expansible when heated;
- a pair of generally co-planar, perforate doors mounted on one of said front and rear sets of tracks for sliding movement between abutting positions closing said central opening and spread positions received in said pockets at opposite ends of said central opening;
- a pair of generally co-planar, generally imperforate doors mounted on the other of said front and rear sets of tracks for sliding movement between abutting positions covering said central opening and spread positions received in said pockets at opposite ends of said central opening;
- and
- expansion wall spacer means on at least said front wall defining expansion cavities alongside said front wall for receiving a portion of said front wall when said front wall is heated and expands.
4 more elements
Apparatus for closing the front opening of a fireplace chamber comprising:
- frame means adapted to be mounted on the front of said heat chamber including
- upper and lower, generally parallel, longitudinally extending sets of front and rear tracks;
- door receiving pockets spanning said tracks on opposite ends of a central opening adapted to be aligned with said fireplace opening;
- and
- a pair of generally co-planar imperforate doors;
- bracket means suspendably mounting said perforate doors on said upper tracks for sliding movement between abutting positions closing said central opening and spread positions received in said pockets at opposite ends of said central opening;
- said lower tracks comprising guide slots receiving the lower edge portions of said doors;
- said bracket means comprising inverted channels normally mounting said doors at such a level that the lower edges of said doors are spaced above the bottom of said slots;
- and
- means releasably coupling said bracket means to said doors such that said bracket means can be moved relative to said doors to a level above the level of said upper tracks.
7 more elements
Apparatus for closing the front opening in a fireplace heat chamber comprising:
- frame means adapted to be mounted on the front of said heat chamber including upper and lower, generally parallel, sets of front and rear tracks;
- a pair of screen doors received in one of said front and rear sets of tracks for sliding movement between adjacent positions covering said opening and spread positions at opposite sides of said opening;
- a pair of heat resistant, imperforate doors received in the other of said front and rear sets of tracks for sliding movement between abutting positions covering said opening and spread positions at opposite sides of said opening;
- said frame means including enclosed door-receiving pockets, having front and rear wall means, at laterally opposite sides of said opening for receiving said doors in said spread positions;
- and
- means for sealing said frame means to said imperforate doors to inhibit the passage of air between one of said front and rear wall means and said imperforate doors when said imperforate doors are in said abutting positions to control burning in the fireplace heat chamber;
- said sealing means including horizontally spaced, generally vertical, stop means on said pockets at horizontally opposite sides of said opening;
- and generally vertical flange means on said imperforate doors for engaging said flange means when said imperforate doors are in said abutting positions.
5 more elements
Apparatus for closing the front opening in a fireplace heat chamber comprising:
- frame means adapted to be mounted on the front of said heat chamber including upper and lower, generally parallel, sets of front and rear tracks;
- a pair of screen doors received in one of said front and rear sets of tracks for sliding movement between adjacent positions covering said opening and spread positions at opposite sides of said opening;
- a pair of heat resistant, imperforate doors received in the other of said front and rear sets of tracks for sliding movement between abutting positions covering said opening and spread positions at opposite sides of said opening;
- said frame means including enclosed door-receiving pockets, having front and rear wall means, at laterally opposite sides of said opening for receiving said doors in said spread positions;
- means for sealing said frame means to said imperforate doors to inhibit the passage of air between one of said front and rear wall means and said imperforate doors when said imperforate doors are in said abutting positions to control burning in the fireplace heat chamber;
- and
- means for inhibiting the passage of air between said rear wall means of said pockets and said heat chamber.
4 more elements
Apparatus for closing the front opening in a fireplace heat chamber comprising:
- frame means adapted to be mounted on the front of said heat chamber including upper and lower, generally parallel, sets of front and rear tracks;
- a pair of screen doors received in one of said front and rear sets of tracks for sliding movement between adjacent positions covering said opening and spread positions at opposite sides of said opening;
- a pair of heat resistant, imperforate doors received in the other of said front and rear sets of tracks for sliding movement between abutting positions covering said opening and spread positions at opposite sides of said opening;
- said frame means including enclosed door-receiving pockets, having front and rear wall means, at laterally opposite sides of said opening for receiving said doors in said spread positions;
- means for sealing said frame means to said imperforate doors to inhibit the passage of air between one of said front and rear wall means and said imperforate doors when said imperforate doors are in said abutting positions to control burning in the fireplace heat chamber;
- and
- forwardly extending, generally vertical flange means on said front wall means at opposite sides of said opening, adapted to be engaged by fireplace brick to inhibit the flow of air therebetween;
- said sealing means including rearwardly extending, generally vertical, flange means on said rear wall means at opposite sides of said opening for mating with the side walls of said heat chamber to inhibit the flow of air therebetween.
5 more elements
Dependencies are inferred from the claim text.