Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 8145047 | Self-regulating electric heating system There is described a heating panel comprising: a heat conductive plate having a first surface that is grooveless and planar and an opposite surface thereof; a self-regulating heating cable residing on the first surface; and an insulating layer covering the self-regu... | 03/27/2012 |
| 7351940 | Product with multiple functions, such as on board technology, eg panel or pipe with enhanced systems within The invention relates to a product, which may take a wide variety of forms but which is exemplified by a pipe or a panel. The product has a first function, such as that normally expected of a pipe or a panel, and a second function different from the first. The secon... | 04/01/2008 |
| 7321723 | Electric radiator An electric radiator comprising at least one laminar element, at least one electrified flexible sheet being fixed on the face of said element that is not exposed once installed, the sheet being electrically connectable to an electric power source. Elements for fixin... | 01/22/2008 |
| 7288749 | Electrical heating device and method of its manufacture An electric heating device based on a ribbon of crystalline metal foil with high specific resistance, which is additionally treated to increase its plasticity and/or additionally coated with a mold release agent to enhance compatibility of the ribbon and insulating ... | 10/30/2007 |
| 7120353 | Infrared sauna A portable compact sauna wherein a user's body is warmed to sweating primarily by direct absorption of infrared radiation. Broad infrared radiation emitters or sources are placed around the inside of a narrow cabinet so as to be in close proximity to various parts o... | 10/10/2006 |
| 7089996 | Decorative radiator A radiator is disclosed for mounting in an upright position to a wall, comprising a front panel and a back panel between which an interior space is provided for introducing a fluid. The back panel is made of a heat-conductive material and is provided with fluid supp... | 08/15/2006 |
| 6943320 | Rubberized covering with integral heating system A heating system providing a heated surface for use on or in a driveway, roadway, walkway, patio, deck, stairs or the like, principally for outdoor use but usable as well for indoor use. The heating system includes a form suitably retained on an existing surface, at... | 09/13/2005 |
| 6489594 | Heating apparatus for preventing ice dams on a roof A snow-melting apparatus prevents ice dams on an outside surface of a roof of a building. An outer edge section of the roof extends over and beyond an outside wall of the building in an outward direction. A heat conduction device includes a substantially ... | 12/03/2002 |
| 5887119 | Ceiling mounted electrical heater with flexible mounting structure An electric heater for ceilings which emits radiant heat includes a radiant plate having heating elements which radiate in a downward direction. The radiant plate is mounted to a top part by a number of elastic/flexible brackets, including pivotable and n... | 03/23/1999 |
| 5770835 | Process and apparatus and panel heater for soldering electronic components to printed circuit board In accordance with the present invention, there is provided a soldering process comprising the steps of: providing in a furnace first and second heaters each adapted to emit infrared energy; setting a printed circuit boad, which has a solder paste and an ... | 06/23/1998 |
| 5619613 | Heating chamber with insulative shield panel and electric heating panels mounted on guard frames A heating chamber for maintaining processed foods warm for extended periods while not sacrificing food quality or causing a secular change in the chamber's insulating member. The heating chamber has side walls formed by outer and inner walls made of relat... | 04/08/1997 |
| 5607609 | Process and apparatus for soldering electronic components to printed circuit board, and assembly of electronic components and printed circuit board obtained by way of soldering In accordance with the present invention, there is provided a soldering process comprising the steps of: providing in a furnace first and second heaters each adapted to emit infrared energy; setting a printed circuit board, which has a solder paste and an... | 03/04/1997 |
| 5391858 | Ice dam melting system An ice dam melting system includes a heat cell which is placed on a roof and which includes an upper panel, a lower panel which is spaced apart from the upper panel, and a conduit which extends in the space between the upper and lower panels. A heat gener... | 02/21/1995 |
| 5239610 | Wall mounted plug-in electric space heater with mounting clip for preventing accidental unplugging An electric heating assembly adapted to be mounted onto and plugged into a wall-mounted electrical outlet includes a heating unit having a plug member an a back wall, thereof which is directly mateable with a power receptacle of the electrical outlet. The... | 08/24/1993 |
| 5214739 | Localized heating unit for desks A heating unit includes a frame and a substantially flat radiant heating surface supported by the frame. A generally parabolic trough with a reflective inner surface is mounted along one edge of the periphery of the heating surface, and contains an elonga... | 05/25/1993 |
| 5159176 | Device for heating, by infrared radiation, fixed on a wall or the ceiling of a room of a building The present invention relates to a device for heating, by infrared radiation, fixed on a wall 3 or beneath the ceiling of a room of a building, comprising a flat infrared radiation emitter constituted by a sheet 5 made of an electrically conducting materi... | 10/27/1992 |
| 5138134 | Decorative wall hanging heater A wall hanging incorporating a heater is characterized by a low temperature thermostatically controlled heating panel being aesthetically concealed behind a decorative surface, and being configured to be hung on an ordinary wall. The device includes a saf... | 08/11/1992 |
| 5029231 | Radiant heat panel A radiant heating panel is formed using a foam insulation core surrounded by a reinforcing mesh and having a pair of wiring harness fixtures snapped over each end of the reinforced core. A radiant heating wire is strung back and fourth between the fixture... | 07/02/1991 |
| 4922084 | Uni-directional heating apparatus An indirect heating apparatus placement under floor or wall surfaces in which the heat is generated in one direction into the room to be heated and includes simplified insulation elements having clamping type connections which are removably attached to th... | 05/01/1990 |
| 4833300 | Space heating element having a ceramic body with an electrically resistive coating thereon An electrical space heating element having a ceramic body which is provided on the side facing away from the space to be heated with an electrically resistive coating. The space heating element provides a high thermal yield while consuming little electric... | 05/23/1989 |
| 4733057 | Sheet heater A wall, floor or ceiling heater comprises a plurality of self regulating, preferably PTC conductive polymer, heater elements each of which is connected to two or more connection elements. The elements are held by a support. In a preferred embodiment the h... | 03/22/1988 |
| 4697063 | Electric heating element An electric heating element includes a core of electrically conductive material connected to a source of alternating current and has a shell of impermeable concrete. The core is moulded from a mixture of graphite powder, silicate of potassium, cement and ... | 09/29/1987 |
| 4677801 | Wall, ceiling and/or floor formation and a method for producing it In order for a wall, ceiling and/or floor formation comprising a substratum which may or must be plastered and a surface layer and further a flat resistance heating element arranged between the surface layer and the substratum and composed of a polyester ... | 07/07/1987 |
| 4480175 | Directional electrical heating panel assembly An electrical heating panel assembly comprises two relatively thin and generally planar panels arranged in face-to-face relationship and in inner-outer relationship relative to a zone to be heated. The panels are adhesively secured together with the inner... | 10/30/1984 |
| 4471212 | Light weight thin buckle-resistant ceiling heating panel The invention is directed to a radiant heat ceiling panel which operates at low temperature and transmits heat directly by radiation. The basic panel structure consists of a fibrous heating element covered on both sides with polyester sheets and backed by... | 09/11/1984 |
| 4354091 | Portable auxiliary warming room apparatus A warming room whose flexible, electric blanket-like wall or walls, floor and ceiling generate surface heat to provide uniform warmth in the area which they enclose. Portions of the warming room comprise one or more warming walls or barriers to increase t... | 10/12/1982 |
| 4262190 | Convection control device for radiant heater A flat ribbon-type heater is subjected to convection loss of heat when air moves across the ribbon heater. This convection loss is minimized by providing a wall structure on either side of the ribbon heater. The wall height to ribbon width must be control... | 04/14/1981 |
| 4205719 | Building module for a ceiling A building module for a ceiling having heating elements incorporated therein. The module has the form of a closed unit which can be individually mounted and removed and which comprises a frame and plates arranged on two opposite sides thereof. Heat-emitti... | 06/03/1980 |
| 4107512 | Insulated radiant heater A radiant heater for installation in or support from ceilings, walls or similar supporting arrangements in which a corrugated heated panel of metallic construction radiates heat with the radiant heater panel being enclosed peripherally by an inwardly faci... | 08/15/1978 |
| 4031353 | Electric radiant heater An improved radiant heater has a metal heating plate formed with at least one bulged portion surrounded by a flat transversely extending peripheral flange. Each of the bulged portions has a concave curved inner surface and a convex curved outer heat radia... | 06/21/1977 |
| 4015105 | Panel electrical heating element A high proportion of inexpensive materials are utilized to provide a low-cost heating element in panel form having a resistivity of 10-.sup.3 to 103 ohm-centimeters which may be operated in the ambient atmosphere as or in a wall, cei... | 03/29/1977 |
| 3946194 | Building comprising one or more rooms or confined spaces equipped with an electric heating installation, and/or an electric heating installation for this building, equipped with a heating device A building comprising a number of confined spaces, at least one of which being provided with an electric heating installation provided on, in or in front of at least part of the walls, floor, ceiling and/or windows, said electric heating installation cons... | 03/23/1976 |
