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
Method for determining a corrected variance representative of the condition of reception of signals representative of symbols
Method for manufacturing light emitting diodes
Low power voltage controlled oscillator (VCO)
Organizer
Vaccine composition against Streptococcus pyogenes
Rose plant named `ESM R057`
Automatic image-content based adjustment of printer printing procedures
  Randomly Featured Patents
Use of nucleic acid analogues in the inhibition of nucleic acid amplification
Semiconductor memory device having reduced data access time and improve speed
Visual aid
Peak power validation methods and systems for non-volatile memory
Passive infrared intrusion detector
Cellular material strip
Protector for sheet metal coils
Radiation image conversion panel and preparation method thereof
Vacuum workbed
Dynamic random access memory