Heated condensate drainage tube

Patent metadata

Field	Value
Publication number	US-11187435-B2
Application number	US-201916458629-A
Country	US
Kind code	B2
Filing date	Jul 1, 2019
Priority date	Jul 1, 2019
Publication date	Nov 30, 2021
Grant date	Nov 30, 2021

Abstract

A passive heater for heating a drainage tube, the passive heater including: an elongated flexible thermal conductor including a first end and a second end, wherein the first end is configured to be disposed in contacting relationship with a heat source and at least a portion of the elongated flexible thermal conductor is configured to be disposed in contacting relationship with a portion of the drainage tube; and an eyelet disposed on the first end, the eyelet configured to facilitate the securement of the elongated flexible thermal conductor to the heat source, wherein the first end is configured to receive heat and transmit it along the elongated flexible thermal conductor to increase temperature of the portion of the drainage tube to prevent freezing of a fluid through the drainage tube.

First claim

What is claimed herein is:

1. A passive heater for heating a drainage tube having a length and an outer surface, said passive heater comprising:
(a) an elongated flexible thermal conductor comprising a first end and a second end, wherein said first end is configured to be disposed in contacting relationship with a heat source and at least a portion of said elongated flexible thermal conductor is configured to be disposed in contacting relationship with a portion of the drainage tube and said elongated flexible thermal conductor configured to be disposed along the entire length of the drainage tube and surround the outer surface of the drainage tube; and
(b) an eyelet disposed on said first end, said eyelet configured to facilitate the securement of the elongated flexible thermal conductor to the heat source,

wherein said first end is configured to receive heat and transmit it along said elongated flexible thermal conductor to increase temperature of the portion of the drainage tube to prevent freezing of a fluid through the drainage tube.

2. The passive heater of claim 1 , wherein said first end of said elongated flexible thermal conductor comprises a plurality of branches configured for receiving heat from said heat source that is a plurality of heat sources.

3. The passive heater of claim 2 , at least one of said plurality of branches is at least partially insulated.

4. The passive heater of claim 1 , wherein said contacting relationship comprises contact of said elongated flexible thermal conductor with an outer wall surface of the portion of the drainage tube.

5. The passive heater of claim 1 , wherein said contacting relationship comprises contact of said elongated flexible thermal conductor with an inner wall surface of the portion of the drainage tube.

6. The passive heater of claim 1 , wherein said contacting relationship comprises contact of said elongated flexible thermal conductor within a wall of the portion of the drainage tube.

7. A passive heater for heating a drainage tube having a length and an outer surface, said passive heater comprising:
(a) an elongated flexible thermal conductor comprising a first end and a second end, wherein said first end is configured to be disposed in contacting relationship with a collective heat source and at least a portion of said elongated flexible thermal conductor is configured to be disposed in contacting relationship with a portion of the drainage tube and said elongated flexible thermal conductor configured to be disposed along the entire length of the drainage tube and surround the outer surface of the drainage tube; and
(b) a collar disposed on said first end of said elongated flexible thermal conductor, said collar is thermally connected to said elongated flexible thermal conductor, said collar comprises at least one receptacle configured to receive said collective heat source,

wherein heat from said collective heat source is transmittable to said portion of the drainage tube to increase temperature of the portion of the drainage tube.

8. The passive heater of claim 7 , further comprising a branch having a first end and a second end, wherein said first end of said branch is configured to receive a contributory heat source, heat received from the contributory heat source is transmittable to said second end of said branch, said second end of said branch is configured to be thermally connected to said at least one receptacle such that heat received from the contributory heat source is transmittable as at least a portion of the collective heat source.

9. The passive heater of claim 8 , said branch is at least partially insulated.

10. The passive heater of claim 7 , wherein said contacting relationship comprises contact of said elongated flexible thermal conductor with an outer wall surface of the portion of the drainage tube.

11. The passive heater of claim 7 , wherein said contacting relationship comprises contact of said elongated flexible thermal conductor with an inner wall surface of the portion of the drainage tube.

12. The passive heater of claim 7 , wherein said contacting relationship comprises contact of said elongated flexible thermal conductor within a wall of the portion of the drainage tube.

Assignees

• Intellihot Inc

Inventors

• Deivasigamani Sridhar
• Akasam Sivaprasad

Classifications

• F24F11/42

  of outdoor units · CPC title

• F24F13/222

  for evacuating condensate · CPC title

• F24H8/006 Primary

  Means for removing condensate from the heater · CPC title

• Y02B30/00

  Energy efficient heating, ventilation or air conditioning [HVAC] · CPC title

• F24F2013/227

  Condensate pipe for drainage of condensate from the evaporator · CPC title