LARGE PLUSH TOWEL WARMER AND DEHUMIDIFIER

• US 20070028479A1
• Filed: 08/02/2005
• Published: 02/08/2007
• Est. Priority Date: 08/02/2005
• Status: Active Grant

• Current Assignee: Barney Hunts
• Original Assignee: Barney Hunts
• Inventors: Hunts, Barney
• Granted Patent: US 7,171,761 B1
• Time in Patent Office: Days
• US Class Current: 34/202
• CPC Class Codes: D06F 34/26 Condition of the drying air, e.g. air humidity or temperature
• CPC Class Codes: D06F 58/10 Drying cabinets or drying chambers having heating or ventilating means

Abstract

An increased air pressure forced hot air towel warmer comprising a substantially airtight enclosure configured to be more desirable and user friendly when placed in close proximity to a tub or shower whether mounted within cabinetry, on the wall or when permanently installed between existing standard 16 inch on center wall support studs while protruding as little as possible into the room. Intended for use with large area plush towels and bath sheets for which insertion in a limited width wall enclosure or shallow depth cabinetry leads to greater vertical depth of towel material to be penetrated and substantially increases the resistance to air flow, therefore back pressure, thereby necessitating increased supply pressure to maintain adequate hot air flow through the towel. Increased supply pressure is created without objectionable noise by use of low noise rotary blowers and associated pressure accumulator cavities arranged in tandem such that their respective pressure gradients are additive. Experience has also shown that all towels exhibit some degree of adsorbed moisture, the present invention includes an embodiment for increasing user satisfaction by removing excess adsorbed moisture during the warming cycle to achieve dehumidification by means of periodic short time interval ejection of the warmed moisture laden air within the enclosure with simultaneous replacement by room air to sequentially reduce the moisture content retained within the warmed towel.

Claims

1. A forced hot air towel warmer and dehumidifier comprising:

a substantially airtight enclosure having a sealable access means to enable placing a towel and the like to be warmed in the substantially airtight enclosure and to enable removing a warmed towel therefrom;

first means disposed within the substantially airtight enclosure having air passages there through to support the towel;

second means disposed within the substantially airtight enclosure to draw air from above the towel to be warmed and thereby to create and pre-pressurize a stream of air;

third means disposed within the substantially air tight enclosure adjacent the second means, to further pressurize and continuously circulate the stream of air within the substantially airtight enclosure;

fourth means disposed within the substantially air tight enclosure adjacent the third means to heat the stream of air;

fifth means disposed within the substantially air tight enclosure adjacent the fourth means containing a temperature sensor and comprising a constant temperature antechamber in which a volume of pressurized air maintained within a predetermined temperature range is caused to continuously impinge on the towel to be heated;

sixth means disposed within the substantially air tight enclosure associated with said stream of air, said second means said third means said fourth means and said fifth means to detect and determine the users intent, to automatically maintain said stream of pressurized air at a temperature within a predetermined temperature range for a given period of time, and to control the air flow direction either totally within or through the enclosure.

seventh means disposed between the towel heating cavity and said second means to selectively direct the air flow to either recycle within said substantially air tight enclosure or to periodically pass through the enclosure;

eighth means associated with said substantially air tight enclosure to enable permanent installation of said hot air towel warmer within a bathroom to prevent said hot air towel warmer from falling into a selected one of a tub or shower;

said eighth means including a cavity disposed in a wall of said bathroom between adjacent studs of said wall, said cavity being disposed adjacent said selected one of a tub or shower to permanently receive said substantially air tight enclosure,

said sealable access means being disposed in an exposed surface of said substantially air tight enclosure, and

an electrical power source disposed in said wall connected to said sixth means and thereby controlling power to said second, third and fourth means.

2. A towel warmer and dehumidifier according to claim 1, wherein said sealable access means includes a door disposed in a front surface of said substantially air tight enclosure.

3. A towel warmer and dehumidifier according to claim 2, wherein said first means includes

a shelf having perforations there through disposed intermediate the bottom of said substantially airtight enclosure and between a first internal bulkhead and front, back and side walls of said substantially airtight enclosure.

4. A towel warmer and dehumidifier according to claim 3, wherein said second means includes

an air blower and associated pressure accumulator cavity disposed between two internal bulkheads, two internal partitions and a back and side wall of said substantially air tight enclosure to create and pre-pressurize said stream of air.

5. A towel warmer and dehumidifier according to claim 4, wherein said third means includes

an air blower pneumatically disposed in tandem with said second means such that their respective pressures are additive and mechanically disposed between two internal bulkheads and a back and side wall of said substantially air tight enclosure to further pressurize and continuously circulate said stream of air.

6. A towel warmer and dehumidifier according to claim 5, wherein said fourth means includes

a resistance coil heater to heat said stream of air disposed immediately adjacent said third means.

7. A towel warmer and dehumidifier according to claim 6, wherein said fifth means includes

a pressurized essentially constant temperature cavity or antechamber containing a temperature sensor and disposed immediately below the first means between the first internal bulkhead and the bottom, side, front and back walls of said substantially air tight enclosure.

8. A towel warmer and dehumidifier according to claim 7, wherein said sixth means includes a heating cycle timer and temperature controller having an input coupled to a power source, a first power output coupled to said tandem blowers, a second power output source coupled to said resistance coil heater, a third power output source coupled to said dehumidifying control solenoid, a first normally open and second normally closed switch to allow the controller to determine the users intent and thereby to initiate and end the heating cycle,

a temperature sensor disposed mechanically within the temperature controlled antechamber immediately adjacent the first means shelf and remote from the heater to allow the controller to detect and maintain the temperature of said stream of air as it impinges on the towel,

a bimetallic over temperature cutoff switch disposed within the coils of said resistance coil heater and disposed electrically between said second power output source and said heater.

9. A towel warmer and dehumidifier according to claim 8, wherein said seventh means includes

a sequentially actuated dehumidifying control solenoid and associated mechanically linked baffles located within a multiple plenum return air path to selectively direct the air flow to either recycle within said substantially air tight enclosure or to periodically pass through the enclosure.

10. A towel warmer and dehumidifier according to claim 1, wherein said eighth means includes

a cavity disposed in a wall of said bathroom between adjacent studs of said wall, said cavity being disposed adjacent said selected one of a tub or shower to permanently receive said substantially air tight enclosure,

said sealable access means includes a rotating member to hold the towel to be heated, said member having a closed front integral with the sealable access means, closed back and sides, a substantially open top, and a perforated bottom providing said first means,

an electrical power source disposed in said wall connected to said sixth means and thereby controlling power to said second, third, fourth and seventh means.

11. A towel warmer and dehumidifier according to claim 1, further including means associated with said substantially air tight enclosure to enable permanent installation in free standing bathroom, nursery, or other appropriate household cabinetry.

12. A towel warmer and dehumidifier according to claim 11, wherein said substantially air tight enclosure includes a rotating member to hold the towel to be heated, said member having a closed front integral with the sealable access means, closed back and sides, a substantially open top, and a perforated bottom providing said first means.

13. A towel warmer and dehumidifier according to claim 1, further including multiple second means as required in order to accept various towel size and material density variations while generating adequate pressure necessary to achieve the desired towel heating time versus temperature performance.

14. A towel warmer and dehumidifier according to claim 1, wherein said sixth means includes

a heating cycle timer and temperature controller having an input coupled to a power source, a first power output coupled to said tandem blowers, a second power output source coupled to said resistance coil heater, a third power output source coupled to said dehumidifying control solenoid, a first normally open and second normally closed switch to allow the controller to determine the users intent and thereby to initiate an “

extended time-out”

period during which the towel warmer may be utilized as a delicate garment dryer capable of drying a single delicate garment such as feminine lingerie.

15. A forced hot air towel warmer comprising:

a substantially airtight enclosure having a sealable access means to enable placing a towel and the like to be warmed in the substantially airtight enclosure and to enable removing a warmed towel therefrom;

first means disposed within the substantially airtight enclosure having air passages there through to support the towel;

second means disposed within the substantially airtight enclosure and consisting of an air blower and associated pressure accumulator cavity to draw air from above the towel to be warmed and thereby to create and pre-pressurize a stream of air;

third means disposed within the substantially air tight enclosure adjacent the second means, and pneumatically disposed in tandem with said second means such that their respective pressures are additive to further pressurize and continuously circulate the stream of air within the substantially airtight enclosure;

fourth means disposed within the substantially air tight enclosure adjacent the third means and consisting of a resistance coil heater to heat the stream of air;

fifth means disposed within the substantially air tight enclosure adjacent the fourth means containing a temperature sensor and comprising a constant temperature antechamber in which a volume of pressurized air maintained within a predetermined temperature range is caused to continuously impinge on the towel to be heated;

sixth means disposed within the substantially air tight enclosure associated with said stream of air, said second means said third means said fourth means and said fifth means to detect and determine the users intent, and to automatically maintain said stream of pressurized air at a temperature within a predetermined temperature range for a given period of time.

seventh means associated with said substantially air tight enclosure to enable permanent installation of said hot air towel warmer within a bathroom to prevent said hot air towel warmer from falling into a selected one of a tub or shower;

said seventh means including

a cavity disposed in a wall of said bathroom between adjacent studs of said wall, said cavity being disposed adjacent said selected one of a tub or shower to permanently receive said substantially air tight enclosure,

said sealable access means being disposed in an exposed surface of said substantially air tight enclosure, and

an electrical power source disposed in said wall connected to said sixth means and thereby controlling power to said second, third and fourth means.

16. A towel warmer according to claim 15, wherein said sixth means includes a heating cycle timer and temperature controller having an input coupled to a power source, a first power output coupled to said tandem blowers, a second power output source coupled to said resistance coil heater, a first normally open and second normally closed switch to allow the controller to ascertain the users intent and thereby to initiate and end the heating cycle.

a temperature sensor disposed mechanically within the temperature controlled antechamber immediately adjacent the first means shelf and remote from the heater to allow the controller to detect and maintain the temperature of said stream of air as it impinges on the towel,

a bimetallic over temperature cutoff switch disposed within the coils of said resistance coil heater and disposed electrically between said second power output source and said heater.

17. A towel warmer according to claim 16, wherein said substantially air tight enclosure includes

a rotating member to hold the towel to be heated, said member having a closed front integral with the sealable access means, closed back and sides, a substantially open top, and a perforated bottom providing said first means.

18. A towel warmer according to claim 16, further including means associated with said substantially air tight enclosure to enable permanent installation in free standing bathroom, nursery, or other appropriate household cabinetry.