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US 5,014,630 AGranted
Cremator
OwnerSteve Lookerinventor
Life of this patent
Estimating the term…
Abstract
A cremator having a parallelepiped construction of increased lateral breadth relative to earlier cremators. The hot gases flowing through the apparatus are constrained to follow a serpentine path of travel below the plane of the primary hearth that includes two return bends. Thus, the path of travel is elongated and the dwell time of the gases within the apparatus is increased. The gases are re-heated after the first return bend has been traversed, and the velocity of the flow of gases is further decreased by increasing the cross sectional area of the passageways that contain the gas flow.
Claims19
A cremator apparatus, comprising:
- an upper chamber;
- a lower chamber;
- a passageway providing fluid communication between said upper chamber and said lower chamber;
- an afterburner being disposed at an upper end of said passageway and said afterburner being operative to drive gases in said upper chamber to flow downwardly into said lower chamber;
- a primary hearth;
- said primary hearth defining, at least in part, a bottom wall of said upper chamber and, at least in part, a top wall of said lower chamber;
- a secondary hearth;
- said secondary hearth defining at least in part, a bottom wall of said upper chamber and, at least in part, a top wall of said lower chamber;
- said secondary hearth being positioned at a trailing end of said primary hearth and being disposed in a plane parallel to and slightly downwardly of a plane of said primary hearth;
- said primary hearth being supported along at least a part of its longitudinal axis of symmetry by a longitudinally extending support wall;
- said upper chamber including a warm air chamber;
- said warm air chamber being positioned between said afterburner passageway that interconnects said upper and lower chambers and a chimney;
- and
- a partition wall in said upper chamber that separates said warm air chamber from a cremation chamber including said primary hearth.
11 more elements
A cremator apparatus, comprising:
- an upper chamber;
- a primary combustion chamber disposed within said upper chamber;
- a lower chamber;
- a chimney means confluent with said lower chamber;
- an afterburner passageway that provides fluid communication between said upper and lower chambers;
- a warm air chamber;
- said warm air chamber being positioned in heat-receiving relation to said primary combustion chamber and said afterburner passageway;
- a substantially horizontally disposed primary hearth that, at least in part, partitions said upper chamber from said lower chamber;
- and
- blower means operative to move warm air from said warm air chamber into at least one preselected area of said apparatus;
- whereby said warm air enhances the combustion process that occurs in said at least one preselected area of said apparatus.
8 more elements
A cremator apparatus, comprising:
- an upper chamber;
- a primary combustion chamber being positioned in said upper chamber;
- a primary hearth being positioned in said primary combustion chamber;
- a secondary combustion chamber being positioned in said upper chamber;
- a secondary hearth being positioned in said secondary combustion chamber;
- said secondary hearth being positioned at a trailing end of said primary hearth;
- a lower chamber positioned below said upper chamber;
- a chimney means in fluid communication with said lower chamber that enables hot gases to escape from said lower chamber;
- a vertically oriented passageway providing fluid communication between said secondary combustion chamber and said lower chamber;
- an afterburner disposed at an upper end of said passageway;
- guide means constraining hot gases within said apparatus to flow under said secondary hearth and to thereafter execute at least two return bends before said hot gases escape said apparatus through said chimney means;
- means for increasing the temperature of said hot gases after said hot gases have executed at least one return bend;
- said means for increasing the temperature of said hot gases including said guide means, said guide means constraining said hot gases after executing said at least one return bend to flow toward said afterburner and said secondary combustion chamber;
- said guide means constraining said hot gases to execute said second return bend in the vicinity of said passageway and said secondary combustion chamber to thereby reheat said hot gases.
11 more elements
Dependencies are inferred from the claim text.