Automated thermal exchange system for autoclave sterilizer
AssigneeCrosstex International, Inc.
InventorJames W. Chandler
Life of this patent
Estimating the term…
Abstract
A system for condensing steam from an autoclave sterilizer includes a cooling tank and a condensing coil extending into the cooling tank. Cooling water from a source of water flows into the tank to cool the condensing coil when the temperature of the coolant in the cooling tank exceeds a predetermined value. A waste water drain is in fluid communication with the cooling tank. An air gap is located between the tank and the source of cooling water. The air gap includes an opening to atmospheric air and is configured to avoid back flow from a waste water drain toward the water source. A check valve may be used with or in lieu of an air gap to prevent back flow toward the water source.
Claims28
An apparatus comprising:
- an autoclave sterilizer discharge condenser coil,
- wherein the condenser coil is configured to receive at least one of hot water and steam discharged from an autoclave sterilizer usable to sterilize medical or dental instruments,
- wherein the condenser coil includes
- a coil inlet configured to be in operative connection with the at least one of hot water and steam discharged by the autoclave sterilizer,
- a coil outlet configured to be in operative connection with a condensate water receiver,
- a coolant tank, wherein the coolant tank includes:
- a tank interior area, wherein the condenser coil extends in the tank interior area,
- a tank water inlet to the tank interior area,
- a tank water outlet from the tank interior area,
- a water control valve,
- wherein the water control valve is configured to cause cool water to be selectively delivered to the tank water inlet,
- at least one water line, wherein the at least one water line is in operative connection with
- a source of water,
- the water control valve,
- the coolant tank inlet,
- the coolant tank outlet,
- a waste water drain,
- a temperature sensor, wherein the temperature sensor is in operative connection with the water control valve,
- wherein the water control valve is operative to control an amount of water flow through the tank interior area responsive to a sensed temperature in the interior area of the coolant tank,
- wherein water from the source is enabled to flow through the at least one water line from the source, through the water control valve, through the tank interior area and to the at least one waste water drain, whereby the at least one of hot water and steam in the condenser coil is cooled and condensate water is delivered from the coil outlet,
- at least one of an air gap and a check valve in operative connection with the at least one water line, wherein the at least one of the air gap and the check valve enables water to flow through the at least one water line in a direction from the source toward the waste water drain but not in an opposed direction toward the source.
An apparatus comprising:
- an autoclave sterilizer discharge condenser coil, wherein the condenser coil is configured to receive at least one of hot water and steam discharged from an autoclave sterilizer usable to sterilize medical or dental instruments, wherein the condenser coil includes a coil inlet configured to be in operative connection with the at least one of hot water and steam discharged by the autoclave sterilizer, and a coil outlet configured to be in operative connection with a condensate water receiver,
- a coolant tank, wherein the coolant tank includes:
- a tank interior area, wherein the condenser coil extends in the tank interior area, a tank water inlet to the tank interior area, and a tank water outlet from the tank interior area,
- a water control valve, wherein the water control valve is configured to cause cool water to be selectively delivered to the tank water inlet,
- at least one water line, wherein the at least one water line is in operative connection with a source of water, the water control valve, the coolant tank inlet, the coolant tank outlet, and a waste water drain,
- a condensate manifold, wherein the condensate coil is in operative connection with the condensate manifold and the manifold includes the coil inlet and the coil outlet,
- wherein the coolant tank includes a manifold opening, wherein the condenser coil is removably extendable in the tank interior area through the manifold opening,
- wherein the condensate manifold is releasably engageable in the manifold opening,
- at least one of an air gap and a check valve in operative connection with the at least one water line, wherein the at least one of the air gap and the check valve enables water to flow therethrough in a direction from the source toward the waste water drain but not in an opposed direction toward the source,
- and wherein water from the source is enabled to flow through the at least one water line from the source, through the water control valve, through the tank interior area and to the at least one waste water drain, whereby the at least one of hot water and steam in the condenser coil is cooled and condensate water is delivered from the coil outlet.
An apparatus comprising:
- an autoclave sterilizer discharge condenser coil, wherein the condenser coil is configured to receive at least one of hot water and steam discharged from an autoclave sterilizer usable to sterilize medical or dental instruments, wherein the condenser coil includes a coil inlet configured to be in operative connection with the at least one of hot water and steam discharged by the autoclave sterilizer, and a coil outlet configured to be in operative connection with a condensate water receiver, wherein the condensate water receiver includes a waste water drain,
- a coolant tank, wherein the coolant tank includes:
- a tank interior area, wherein the condenser coil extends in the tank interior area, a tank water inlet to the tank interior area, a tank water outlet from the tank interior area,
- a water control valve, wherein the water control valve is configured to cause cool water to be selectively delivered to the tank water inlet,
- at least one water line, wherein the at least one water line is in operative connection with a source of water, the water control valve, the coolant tank inlet, the coolant tank outlet, and the waste water drain,
- at least one of an air gap and a check valve in operative connection with the at least one water line, wherein the at least one of the air gap and the check valve enables water to flow therethrough in a direction from the source toward the waste water drain but not in an opposed direction toward the source
- a thermal valve, wherein the thermal valve is positioned intermediate of the coil outlet and the waste water drain,
- wherein the thermal valve is operative to prevent fluid above a set temperature from passing from the coil outlet to the waste water drain,
- wherein water from the source is enabled to flow through the at least one water line from the source, through the water control valve, through the tank interior area and to the at least one waste water drain, whereby the at least one of hot water and steam in the condenser coil is cooled and condensate water is delivered from the coil outlet.
An apparatus comprising:
- an autoclave sterilizer discharge condenser coil, wherein the condenser coil is configured to receive at least one of hot water and steam discharged from an autoclave sterilizer usable to sterilize medical or dental instruments, wherein the condenser coil includes a coil inlet configured to be in operative connection with the at least one of hot water and steam discharged by the autoclave sterilizer, and a coil outlet configured to be in operative connection with a condensate water receiver,
- a coolant tank, wherein the coolant tank includes:
- a tank interior area, wherein the condenser coil extends in the tank interior area, a tank water inlet to the tank interior area, a tank water outlet from the tank interior area,
- a water control valve, wherein the water control valve is configured to cause cool water to be selectively delivered to the tank water inlet,
- at least one water line, wherein the at least one water line is in operative connection with a source of water, the water control valve, the coolant tank inlet, the coolant tank outlet, and the waste water drain,
- an air gap in operative connection with the at least one water line, wherein the air gap and enables water to flow therethrough in a direction from the source toward the waste water drain but not in an opposed direction toward the source, wherein the air gap is included in an assembly, wherein the assembly includes a housing and a riser tube extending vertically within the housing and having at least one riser upper opening wherein the housing is open to atmospheric pressure and water flows into the housing via the riser tube, out the at least one upper opening and leaves the housing from an area between the riser tube and the housing below the at least one riser upper opening,
- wherein water from the source is enabled to flow through the at least one water line from the source, through the water control valve, through the tank interior area and to the at least one waste water drain, whereby the at least one of hot water and steam in the condenser coil is cooled and condensate water is delivered from the coil outlet.
Dependencies are inferred from the claim text.