U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 392/356 - With fan blower


Subclass of Class 392 - Electric resistance heating devices
Definition: Subject matter wherein the air to be heated is directed
No. of patents: 23
Last issue date: 07/21/2009


NumberTitleIssue Date
7565066Food transport containers
In order to provide a food transport container, comprising an air circulation device, by which air is taken in from the interior of the food transport container and blown out into the interior of the food transport container, wherein the air circulation device compr...
07/21/2009
7457533Electric heating device
An electric heating device including a fan for moving a volume of air at a rate substantially corresponding to a speed of rotation of the fan, and a fan motor for rotating the fan over a range of speeds. The device also has a heat generator with one or more PTC elem...
11/25/2008
7359629Molding compounds for use in furnace blower housings and blower housings molded from these compounds
The invention provides blower housings for air handlers and hot air furnaces which are made from molding compounds that allow for wide flexibility in molding complex configurations so as to improve blower efficiency, which improve manufacturing efficiency and safety...
04/15/2008
7267462Light bar defogger
A lighting apparatus comprises a housing assembly, a light bulb socket and a forced air generation device. The housing assembly includes a light opening in a front wall thereof and an air delivery opening in a bottom wall thereof. The light bulb socket resides withi...
09/11/2007
7203416Ventilating and heating apparatus with heater shielded by tapered discharge duct
The invention provides a ventilating and heating apparatus for installation in a building structure. In some embodiments, the apparatus includes a main housing in which is located a ventilating fan assembly and a heater fan assembly having a heater and a discharge d...
04/10/2007
7190887Portable thermal-stratifying space heater and powerplant package
A portable room heater is provided comprising an upright enclosure defining an inlet at a lower end of the enclosure, an outlet at an upper end of the enclosure, and a passageway fluidly connecting the inlet and the outlet. The portable room heater further comprises...
03/13/2007
7158716Portable pedestal electric heater
A portable pedestal electric heater apparatus for providing a heated exhaust air stream at an elevation above a support surface comprises a tower electric heater and a support riser for supporting the tower electric heater at an elevation above a support surface. Th...
01/02/2007
7133604Infrared air heater with multiple light sources and reflective enclosure
An air heater is provided for use in buildings or other structures. The air heater uses infrared lamps to generate a temperature rise in a forced air chamber that contains several infrared lamps, in which two ends of the chamber act as an inlet and an outlet, and in...
11/07/2006
7046918Space heater with pretreated heat exchanger
A space heater with a linear source of infrared radiant energy in heat exchange relationship with a heat exchanger formed of copper or aluminum material. The copper is pretreated to soften the copper and partially blacken the surface thereof. The aluminum is anodize...
05/16/2006
6973260Portable electric heater with vertical heated air outlet
A portable electric heater producing a vertically oriented, heated exhaust air stream at an elevation above a support surface is provided. A base contacting the support surface and supporting an elongate housing in a substantially vertical position from the support ...
12/06/2005
6960745Electronic control circuit
An electronic control circuit for use with a heater, a fan, a humidifier or any device utilizing a power mode switch and a condition sensor, the electronic control circuit including a single control switch for controlling both power output and responding to a sensed...
11/01/2005
6959144Air heater with expansion containing electric heater arranged in stages
Providing a hot air heater and an expansion in the air blowing passage of the hot air heater and suppressing increases in air trunk resistance even if electric heaters are arranged in this expansion in a plurality of stages prevents increases in the rotation speed o...
10/25/2005
6327426Apparatus and method for delivering a beneficial agent
An apparatus for delivering a beneficial agent to a surrounding area comprising a first electroactive electrode, a beneficial agent, a second electroactive electrode and an electrical associating member. The first electroactive electrode includes an outer...
12/04/2001
6154606Heater
A radiant heater mounting heating elements in a sealed housing with a ceramic heat transmitting wall. A fan is mounted in the housing to cool the heating elements and in practice provide additional heat. There are also vent assemblies which prevent water ...
11/28/2000
5345533Photoemission radiant heater
A photoemission radiant heater includes a chamber having an interior reflective surface, a first end and a second end; a means for generating photons within the chamber wherein photons are reflected off the interior reflective surface of the chamber; a bl...
09/06/1994
5097531Apparatus for the oxidation of particles suspended in the air
An apparatus for the oxidation of particles suspended in the air with a refractory material block (4) provided with small volume ducts (5) inside which s resistive wire is passed in order to generate a higher power density. The maximum volume of the ducts...
03/17/1992
5014339Device for heating up a flow of gas
A device for heating a flow of substantially pure gas flowing in a flow direction to temperatures above about 600° C. is disclosed. The device includes a heat exchanger having a heat exchanger surface extending transversely to the flow direction whereby ...
05/07/1991
4680448Infrared space heater
A space heating device which utilizes infrared lamps has enhanced heat transfer, and achieves an air flow velocity increase of approximately 30 percent, resulting in increased efficiency. A heat exchanger comprising a plurality of spaced, parallel copper ...
07/14/1987
4382174Infra-red hair dryer
There is disclosed a hand held pan shaped, infrared hair dryer containing a perforated air diffuser which can function as an infrared reflector if the air diffuser is shiny. The air diffuser also protects a quartz tube infrared emitter. A fan rotated by a...
05/03/1983
4309594Modular infrared space heater device
A modular infrared heating device having an outer casing which encloses a heating chamber wherein one or more infrared lamps are vertically positioned. The heating device also includes an intake channel which communicates with an opening in the outer casi...
01/05/1982
4309593Electric heater which reduces the chance of electrical shock
An electric heater construction which significantly reduced the possibility of electrical shock to a user thereof. This electric heater includes an outer casing with an open front, a protective grille mounted over the open front of the outer casing, a ref...
01/05/1982
4197447Modular infrared space heater device
A modular infrared space heating device includes an enclosure having an air inlet and an air exhaust. A plurality of open-ended ferrous metal conduits are positioned in the enclosure between the air exhaust and a plurality of infrared lamps. The conduits ...
04/08/1980
3973101Electric air heating furnace
An electric furnace comprised of an outer casing, a support casing and a heater casing, the outer casing has a substantially rectangular cross-section with air inlet openings formed in the lower portion of the back wall and in the upper portion thereof wh...
08/03/1976
 
Sign InRegister
Username  
Password   
forgot password?