NOT MASS PRODUCED BUT AVAILABLE . Ideal for caregiving Alzheimer's patients, the elderly, the sick, people with mobility problems and in general all special needs people.
To buy click http://bit.ly/hotsmart
Heat Retentive Plates are also Ideal for the elderly, Alzheimer's patients, the sick and in general for all special needs people who eat slowly. They have been called "A blessing", "A God's send", "Best present ever" said the 80 year old mother of one of our customers.
Initially developed as gourmet plates, things evolved. The inventor is a stroke and brain tumor survivor who started designing a tortilla warmer and decided a plate would have a larger market; he ended up with the best care giving plate in the world and we use it as tortilla warmer too. (We claim it is also the best tortilla warmer in the world)
HotSmart Plates are the ONLY patented HEAT RETENTIVE PLATES on the market; they use the Stefan-Boltzmann principleand patented technology. What does this mean? The sketch below helps explain everything. See also HotSmartUSA.com
For how to manufacture HotSmarts you need to see previous postson this blog, andpatents are public domain (License required for the USA). It is a great steak plate too and please allow me to repeat: Ideal for caregiving (Alzheimer's, Parkinsons patients, special needs, the elderly, WLS patients,etc.); baby boomers love them.
This is how it works
(it is basically an energy trap)
Although not mass produced yet; it is available at Amazon.com click here
HotSmart Plates use a core of a specially developed -proprietary- microwave absorbing material
This core is enclosed in a cavity in the plate
The upper and lower components are basically transparent to microwave radiation
The core gets very hot and radiates in the infrared range of frequencies (heat)
The Stefan-Boltzmann law regulates this radiation
Both Microwaves and infrared radiation are electromagnetic radiation (Only different wave length)
HotSmart Plates need only ONE minute microwaving (1200W) and stay hot for over 30+ minutes (over half hour) Believe it or not!
There is a big difference between a simple thick, heavy plate and a HotSmart Heat Retentive Plate.
section through HotSmart plate shows core of microwave susceptor
material and joint design. (Credit: J.J. Ramirez/HotSmart USA.)
As the US heads toward the Thanksgiving holiday, it seems appropriate
to explore ways to keep our food warmer, longer. After all, the
traditional Thanksgiving feast of turkey and all the trimmings has
become the centerpiece of the day for many. (Along with, in many
Enter Juan J. Ramirez. A former industrial engineer, Ramirez invented
and patented a unique stay-hot dinnerware technology after losing his
long-time job and suffering some health issues. “The idea came after I
suffered a stroke and brain tumor surgery,” he explains in an email.
“Well, the idea did not come because of the stroke, but because I lost
my career of many years in manufacturing and I found myself unemployed
and with lots of time available.”
Ramirez used that time to develop a line of dinnerware that, after
only a minute in the microwave oven, will keep food in the center of the
plate hot for more than 30 minutes. The rim of the plate, meanwhile,
remains cool to the touch to minimize the chance of accidental burns.
Ramirez says HotSmart plates can be made using practically any
ceramic material, from whiteware to bone china, and that “anybody making
plates” would know the details of firing time and temperature. The
trick is in the plates’ core of susceptor material, which absorbs
microwave radiation and then releases the heat in a controlled manner.
“It was about time the ceramic plate learned a few new tricks,” he jokes
in the email, while the product’s website calls the patented technology “the only functional change to the ceramic plate in centuries.”
According to Ramirez, the microwave susceptor material is red
earthenware with an addition of iron filings. “Red earthenware already
contains iron oxide, which is a polar molecule,” he explains. The
material absorbs microwave radiation, then releases it as heat in a
controlled manner according to the Stefan-Boltzmann law,
the product website says. (The photo above, credit J.J.
Ramirez/HotSmart USA, shows the susceptor material and the top and
bottom halves of a plate.)
Plate tops and bottoms are produced separately, then joined using an
unspecified adhesive with the susceptor material sandwiched inside.
According to Ramirez, any shrinkage or warpage that might result from
firing is addressed by the plates’ design, which uses a conical joint.
The product website says the design has proved durable in months of
cycling between microwave and dishwasher.
Although they are not yet being mass produced, the plates and mugs are being marketed on Amazon.
Ramirez says the products have “been received very well.” The plates
have also been featured as a “Reader Invention of the Month” in Popular Science magazine.
According to the website, the dinnerware’s ability to keep food hot for extended periods of time may even offer health benefits for diabetics, bariatric surgery patients who must eat slowly, people trying to lose weight, and others who simply want to practice “mindful eating,”
a way to reduce overeating that makes a practice of slow, deliberate
dining. The website also calls HotSmart plates “the most hygienic plate
in history,” because they lack the unglazed dry foot found in most
dinnerware that “can absorb moisture and become a breeding ground for
(See previous posts and learn how to manufacture them)
This is a conical joint (alternate configuration) for ease of manufacturing
See previous posts to learn how to manufacture HotSmart Plates (Patented, license required); the ONLY ceramic plates in the world that keep food hot
Anybody that knows about manufacturing and tolerances (as well as firing ceramics in a kiln) can tell you the advantages of this design
Alternate Slanted Joint
(The heater is not shown)
Will you please RT? Many people don't know that in 2013 there are plates that keep food hot.
HotSmarts stay hot for over half hour, however, they are safe to handle
(The green zone, the rim does not get hot
An excellent present for elder parents
(An old lady told his son: "This is my best present ever")
AFTER READING THIS POST YOU WILL HAVE ENOUGH INFORMATION
(We welcome questions and may even buy part of your production for the USA market)
You may be asking yourself why HotSmart is so "kind" as to publish this? (What's the catch?)
First of all, patents are public knowledge anyway; just search the USPTO for Pat. 7,176, 426
Second we want the world to know that they don't have to eat on cold dumb plates (that get food cold) anymore. All regular plates even if preheated get cold fast.
IMPORTANT: In a world with obesity problems, eating slowly helps prevent overeating. Google "eating slowly yourself or you won't believe me obesity, heart disease, diabetes, etc. (And who wants to eat slowly if food gets cold?)
HotSmart is looking for suppliers of different styles, shapes, patterns, materials etc.
HotSmart is looking for funding to grow fast; our prices are very high because we are not mass producing and even with those ridiculous high prices, we seriously doubt there will be HotSmarts for this coming Christmas of 2013.
Adhesive sealers (alternatives)
This is just the first alternative: using Silicone RTV and RF.5 to seal the plate which may be used in combination withRF.5 (This is what I recommend unless you have access to hi-tec epoxies which I will mention in a separate post).
(RTV is available in different colors and some companies are willing to develop the color you need).
There are many other alternatives including one that HotSmart (Myself) Developed that has nice appearance (I will talk about it on the next posts) let me advance you this:
While testing some type of Chinese A B Epoxy which has the tendency to "vitrify" and crack I thought: what if I add silicone to the mix so that the polymer interlaces with the epoxy and it does not get so hard? Well believe it or not at the second try I obtained what I call RF.5 (Ramirez Formula 0.5). It came with the right hardness and color for my HotSmart plates
Component A................ 2 parts
Component B................ 1 part
Clear silicone RTV........0.5 parts
Clear silicone RTV which is flexible is better for the hourglass (Double wedge) shaped seal while RF.5 may be used for appearance.
Steps for assembly:
With the plate upside down, you cover all the small round area - including the boss with clear silicone RTV; place the heater with the concave side facing the plate, fill the hole in the heater with RTV.
Wait till the RTV cures (It takes several hours) DO NOT SEAL THE PLATE BEFORE IT CURES
Apply clear RTV on the plate at the place you will form the hourglass-shaped seal
Apply RF.5 to the flat surface of the base to form the exterior seal and remove the excess before it hardens completely. You want a perfect seal without excess of adhesive.
That's it; make 3 components (you can even outsource them), and put them together.
License required for the USA (Get in touch)
Another alternative is using High temperature epoxy which requires some curing time in an oven but becomes practically indestructible (I will give details later).
Obviously the plate can be "slimmer" and lighter
(This is an illustrative example)
The joint has an hour glass shape so that the pressure from either side increases the efficacy of the seal. This technique is used in bathyscaphe windows (check Wikipedia). The explanation is simple: In a conical or wedge shaped seal the more you push the better it seals; I did not invent that.
Under construction... I will update as soon as I can
Ooops! that's with lawyers and contracts; here the details are key to success
Everybody in the business knows how to do this right? Cover the area with melted wax (The same procedure used for the "dry foot") before glazing.
The reason for this area being unglazed is that the heater -described in previous posts- is also unglazed and is attached to the lower side of the plate hanging like a ceiling fan using clear silicone RTV (Room Temperature Vulcanizing); that small round area separates the heater with precision from the plate creating a gap (gaps are very important in the cavity, I will explain later).
The areas at the joint can also be unglazed depending on the adhesive sealer chosen (skeptics who don't believe HotSmart plates can be made dishwasher-safe ignore that even airplanes nowadays are assembled using hi-tec epoxies. Did you know that the tiles of the space shuttle were attached with silicone?). By the way, HotSmart Plates can be designed to resist lots of abuse (overheating ) by simply redesigning the internal gaps.
The radiated heat from the heater that reaches the plate is inversely proportional to the square of the distance, example:
If the small round area is 1 mm. thick one arbitrary unit of infrared radiation will reach the plate (lets call it one Ir (One Infrared radiation unit)
If the small round area is 2 mm. thick, 1/4 Ir (0.25) one quarter of a unit will reach the plate
If the small round area is 3 mm. thick 1/9 Ir one ninth (0.11) of a unit will reach the plate.
As you can see; by increasing the gaps you can control the amount of heat released and change the shape of the temperature chart below Click it to go to "How to .." on wikiHow or simply click here
The plate comes hot out of the microwave oven -except the rim for safe handling- but... This is very important: By the time a HotSmart Plate reaches maximum temperature a normal plate -no matter how much you preheat it- will be cold along with the food it holds.
NOTE: A similar procedure (using melted wax) can be followed for the surfaces of the joint, depending of what adhesive-sealer you decide to use. I will dedicate a post to discuss alternatives.Yes, HotSmart Plateswill be Dishwasher proof
If you are interested in becoming a qualified supplier for us or selling in the USA We (I, the inventor) will give you personal attention. My contact information is on HotSmartUSA.com
Our goal is to see a couple HotSmarts in every single home (There are over 100 million homes just in the USA alone)