W. J. Lund's Profile
Biography
This person does not have a biography.
W. J. Lund's articles
The Voltex hybrid water heater mates a heat pump water heater with an electric storage water heater. Heat pump water heaters are very efficient. They operate much like your refrigerator or air conditioner. They pull heat out of the air and instead of transferring it to back to the air as your air conditioner does, it uses it to heat water.
Posted: 2010-08-29
Category: Product Reviews
The A.O. Smith hybrid water heater has a small "buffer tank". A.O. Smith isn’t saying what size the tank is, but rumors are that it is around 15 to 20 gallons. With a buffer tank the unit can deliver hot water faster since it doesn’t have to heat the water first, there is sufficient hot water in the tank to begin sending water to the fixtures right away just as a storage water heater would do.
Posted: 2010-08-29
Category: Home Improvement
Normally you can’t use hot water circulating systems with tankless water heaters, but with a small tank that problem goes away as well. You can use a hot water circulating system with the hybrid units.
Posted: 2010-08-29
Category: Home Improvement
Heat Pump Hybrid Water Heaters are basically an electric water heater with a heat pump mounted on top. There isn’t much new about a heat pump water heater with a 40 or 50 gallon tank. They have been around for over 40 years.
Posted: 2010-08-29
Category: Home Improvement
Tankless water heaters are a whole lot different than traditional storage or tank type water heaters. They are often considered green because they don’t have the standby heat losses associated with tank type water heaters and are therefore more energy efficient.
Posted: 2010-08-29
Category: Home Improvement
I just finished filing a provisional patent application online. It was pretty easy and it cost a total of $110. Here are the step by step instructions on how to file a provisional patent application online.
Posted: 2010-08-21
Category: Entrepreneurs
Claims are used to determine if an invention is patentable over the existing prior art, and recite the bounds or scope of an invention. The patent specification shows how to build or make and use the invention and the claims define its scope.
Posted: 2010-08-02
Category: Entrepreneurs
A patent gives you the right to stop others from using, making, or selling your invention in the country issuing the patent. These rights are known as offensive rights since they allow you to take the offensive and sue an infringer.
Posted: 2010-08-01
Category: Entrepreneurs
For those of you who are unfamiliar with patents here is a primer describing the basics of patents and answering some of the common questions that novice or newbie inventors have about patents.
Posted: 2010-07-18
Category: Entrepreneurs
According to the US patent laws, “prior art” means the state of knowledge existing or publicly available either before the date of your invention or more than one year prior to your earliest patent application date.
Posted: 2010-07-17
Category: Entrepreneurs
I’ve introduced my invention, a selective asparagus harvester, to the public by putting it up on a website. Having disclosed the invention to the public starts a one year clock ticking upon which a patent, real or provisional, must be filed to retain the patent rights.
Posted: 2010-07-17
Category: Entrepreneurs
I don’t want to spend the money on a patent attorney at this time, but I also do not want to give up my patent rights. I’ve decided to file a Provisional Patent Application (PPA) instead. I have less than a year to file the PPA just like a Real Patent Application (RPA), but I can file the PPA myself, and then when the time comes to file the RPA I shall retain a patent attorney.
Posted: 2010-07-17
Category: Entrepreneurs
There are actually three different kinds of patents according to the US patent and trademark office. The three types of patents are Utility patents, Design patents, and Plant patents.
Posted: 2010-07-16
Category: Entrepreneurs
Will my invention be successful in the market place? That is a question every inventor should ask and answer before expending time and money on that great new idea. Bringing a new product to market is an inherently risky venture. Over 90% of all patented new inventions never make it to the marketplace.
Posted: 2010-07-15
Category: Entrepreneurs
Often the solution to a problem turns out to be an invention! Think about it, inventions solve problems. I invented an asparagus harvester because of labor problems. I invented the Metlund and Chilipepper hot water demand systems because it took too long to get hot water.
Posted: 2010-07-03
Category: Entrepreneurs
