Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Water heating system










Image Number 2 for United States Patent #4401100.

A water heating system comprises a lower energy storage tank connected with a source of energy and an upper tank mounted on top of the lower. The upper tank may be a conventional water heater or a water storage tank connected at an outlet therefrom with an instantaneous type water heater, and the tanks are interconnected through a valve. The valve operates to direct incoming cold water through a heat exchanger in the lower tank for being preheated prior to introduction into the upper tank and accommodates a thermal syphon effect between the tanks when fresh water is not being supplied, whereby heat energy is automatically transferred from the lower to the upper tank. The lower tank may advantageously and economically comprise a conventional drum, for example a 55 gallon drum, and all system components are mounted in a cover assembly for the lower tank, so that the upper tank need not be specially fabricated, with the cover assembly also serving to support the upper tank.








 
 
  Recently Added Patents
Display screen with transitional icon
Image sensor and method for fabricating the same
Vehicle grille
System and methods for random parameter filtering
Changing sound alerts during a messaging session
Packet transmission system and fault recovery method
(4939
  Randomly Featured Patents
Fluid heat exchanger
Seat folding apparatus with a passive radio frequency link and foreign object detection system
Semiconductor device having doping multilayer structure
Wave gear device
Lead frame tooling design for bleed barrier groove
Method for information communication between concurrently operating computer programs
Heddle frame assembly construction and method
Yarn tuft transfer system
Perforating and jet drilling method and apparatus
Method for removing chromium containing coatings from aluminum substrates