Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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.
| Number | Title | Issue Date |
| 7326885 | Hot plate with stainless steel top A hotplate with a stainless steel top plate to support a vessel. The stainless steel top plate has an upper surface with a substantially centrally located depression having a depth and area generally sufficient to absorb upward crowning of the top plate when heated.... | 02/05/2008 |
| 7189946 | Substrate heating device A substrate heating device is provided, including a ceramic base plate having a heating surface on which a substrate is placed, resistance heating elements buried in the ceramic base plate corresponding to a plurality of zones into which the heating surface is divid... | 03/13/2007 |
| 7150891 | Method for conducting a cooking process with a cooking process probe A method for managing a cooking process in a cooking chamber according to a cooking program with one cooking process probe inserted at least partially into a product to be cooked in the cooking chamber for the detection of at least two temperature values by at least... | 12/19/2006 |
| 6919542 | Sheathed heating element with positive temperature coefficient A heating element for an electric appliance for heating or cooking foods. The heating element is composed of: a tubular metal envelope; and a resistance wire encased in an insulator disposed at the interior of the tubular envelope. The wire is composed of nickel and... | 07/19/2005 |
| 6278089 | Heater for use in substrate processing A heater is provided for use in substrate processing. In a first aspect, the heater is formed from a heater plate including an upper surface having at least one recess formed therein, a heater element wire disposed within the at least one recess and an el... | 08/21/2001 |
| 6222165 | Electrical sleeve heater A sleeve heater is made by first cutting in one face of a flat metal plate a continuous groove and then fitting to the groove a heater wire with at least one end of the wire projecting past an edge of the plate. The plate is then plastically deformed with... | 04/24/2001 |
| 6087632 | Heat processing device with hot plate and associated reflector A heat processing device includes a hot plate on which a substrate is placed, a heater press-fitted in the hot plate for heating the substrate through the hot plate, and a reflecting plate facing an underside and side faces of the hot plate at a distance ... | 07/11/2000 |
| 5708255 | Prepared meal system with lower hotplate having a plurality of heating zones and an upper radiant heating element and operated in accordance with pre-programmed cooking programs selected by a user A prepared meals system has at least one food container and cooking unit. The food container has at least two compartments for different foods to be heated at different temperatures and/or times. The cooking unit has at least one cooking station having tw... | 01/13/1998 |
| 5616024 | Apparatuses for heating semiconductor wafers, ceramic heaters and a process for manufacturing the same, a process for manufacturing ceramic articles A ceramic heater composed of a ceramic substrate and a resistant heating element embedded within the ceramic substrate along a predetermined planar pattern is obtained by holding a convolution of a spiral-coiled high melting metallic filament in the above... | 04/01/1997 |
| 5241158 | Electric hotplate In the case of an electric hotplate (1), the profile ring (17) for supporting on the hob (2) is provided by an elastically resilient circumferential stretching and a resilient cross-sectional zone (29) with an outer ring leg (18) resiliently deflectable w... | 08/31/1993 |
| 5162636 | Electric cooking means In a glass mounting plate, which is provided on the underside with a partly transparent and partly non-transparent mask, is fitted an electric hotplate. An illuminating chamber illuminating by a lamp is connected to its underside. The mask gives rise to a... | 11/10/1992 |
| 5160830 | Electric hotplate For an electric hotplate is provided an assembly arrangement using a bearing ring, which forms a continuous, one-piece, smooth-surface top extending from the outermost circumferential area of the hotplate body located close to the cooking surface to its o... | 11/03/1992 |
| 5122639 | Electric hotplate An electric hotplate has leads projecting from the underside and whose ends form connecting pins and provided with plugging pieces in the form of flat plugging tongues, connected by plugging connections to matching plugs of apparatus lines. On the pluggin... | 06/16/1992 |
| 5086211 | Electric hotplate To a lower coverplate of an electric hotplate a side plate is fitted, onto which can subsequently be mounted an insulator by means of a locking connection. The insulator receives connecting leads from the hotplate and corresponding connections, such as fl... | 02/04/1992 |
| 5072096 | Electric hotplate An electric hotplate with a hotplate body, forming a cooking surface having a flat or shallow depression in its center, has an assembly for securing the hotplate to a hob surface and has a removable cover, such as a flat head, for providing a smooth surfa... | 12/10/1991 |
| 5010235 | Electric cooker plate An electric cooker consisting of a fitting plate having an opening surrounded by an upwardly directed rim, a cooker plate received in the opening, the plate having a cooking surface on which a cooking vessel can be placed, and a sheet metal ring surroundi... | 04/23/1991 |
| 4962297 | Temperature controlled hot plate A temperature controlled hot plate (10) has a hot plate body (11) having an upper plane heat emitting surface (12) and a lower surface on which the heating coil (13) is provided. The heating coil is embedded in an electrically insulating substance (14) ag... | 10/09/1990 |
| 4940886 | Electric hotplate In an electric hotplate (1) a hotplate body (2) is constructed in such a way that a holding element (25) provided to fix the hotplate in a hob and arranged below the hotplate can be located in a relatively small distance from the top-side respective the c... | 07/10/1990 |
| 4931620 | Electric hotplate In an electric hotplate (1), the hotplate body (4) has a throughbore (28) located in its central axis (10) and traversing a central stud (7) and the top surface and in which can be arranged in countersunk manner the head (26) of a fastening bolt (25) proj... | 06/05/1990 |
| 4922080 | Cooker plate In a cooker plate (1) connection of the particular electric hotplate (3) a window opening (19) is provided as an assembly opening in a holding part (5) substantially completely covering the same on the underside, through which can be passed a connecting p... | 05/01/1990 |
| 4899723 | Combination gas and electric stove with burner arrangement therefor A cooking and heating stove capable of operating on either gaseous fuel or electricity has a combination burner construction consisting of an annular metal plate with an electrical resistance heater located in recessed grooves on the undersurface, and a c... | 02/13/1990 |
| 4899033 | Electric hotplate connecting piece For the in particular fully automated electrical connection of electric hotplates (2) to connecting lines (15) a connecting piece with an insulator (18) is provided, which is provided outside two remote end faces (25, 26) with pin-like connecting parts (2... | 02/06/1990 |
| 4888470 | Sealed electric hotplate A sealed electric hotplate can be simply fitted by lateral insertion into a hob. For this purpose a hotplate with a cast metal body is surrounded by a very wide trim ring, which is provided with centering projections. The wide ring is separately grounded,... | 12/19/1989 |
| 4871902 | Electric hotplate and apparatus for the connection thereof In an electric hotplate (1b), the connecting portions (19b) for the connection of appliance lines (34) provided on the underside thereof can be transferred about articulations, namely bendable or pivotable joints or hinges, e.g. in the form of springs (71... | 10/03/1989 |
| 4861969 | Electric hotplate, apparatus and method for fitting a cover plate thereto The lower cover plate of an electric hotplate is fixed to the hotplate body by a resilient fixing structure provided on the cover plate, engaging with gripping edges on the outer face of a downwardly directed, central cast pin. The fixing structure can be... | 08/29/1989 |
| 4843217 | Cooking unit A cooking unit has electric hotplates (115) fitted in openings (113) of a mounting plate (112) and each electric hotplate is fixed against rotation. The associated rotation prevention member (14) can e.g. be an elastically movable tongue, which cooperates... | 06/27/1989 |
| 4829160 | Electric cooker plate An electric cooker comprises a fitting plate having an opening surrounded by an upwardly directed rim, a cooker plate received in the opening, the plate having a cooking surface on which a cooking vessel can be placed, and a sheet metal ring surrounding t... | 05/09/1989 |
| 4814582 | Cooker Below a hob (2) with at least one cooking point (3), a cooker has a baking oven muffle (7), which can be upwardly vented by a venting duct (10) through the hob (2), at least at one cooking point (3). Cooking point (3) is formed by a sealed electric hotpla... | 03/21/1989 |
| 4808797 | Electric hotplate A hotplate (11) has a flat, plate-like bushing (22) for connecting leads (19). The bushing (22) is directly fitted in a cover plate (20) of the hotplate (11) by means of retaining clips (34). The connecting leads (19) are threaded through the bushing, whi... | 02/28/1989 |
| 4766290 | Sealed electric hotplate A sealed electric hotplate is to be provided, which can be simply fitted by lateral insertion into a hob. For this purpose a hotplate with a cast metal body is surrounded by a very wide trim ring, which is provided with centering projections. The wide rin... | 08/23/1988 |
| 4755655 | Thermal protection arrangement for solid disk glass cooktop A solid disk surface unit mounted in a glass or ceramic support surface, comprising a plate member of cast material with one or more resistive heating elements mounted to the underside thereof and a thermally conductive cover member enclosing the undersid... | 07/05/1988 |
| 4754123 | Electric hotplate In an electric hotplate (1), the casing (15) of a thermal cutout (14) integrated with a projecting expansion rod temperature sensor (16) is open or unclosed on the top side, so that its reception depth for receiving the associated limiter switch is open u... | 06/28/1988 |
| 4723067 | Electric hotplate An electric hotplate (1) with a temperature sensor (21) of a power control device provided in the center of the cooking surface (3) has on the underside of area (5) of hotplate body (2) directly heated by heating resistors (7, 8) a thermal cutout (27) wit... | 02/02/1988 |
| 4717810 | Electric hotplate An electric hotplate, particularly intended for continuous operation in commercial use, is provided on the bottom surface with at least two superimposed reflectors (24, 28), which in each case form the lower boundary of an insulating zone (29, 30) and whi... | 01/05/1988 |
| 4716277 | Electric hotplate A large electric hotplate for restaurants and the like is heated by tubular heaters, which are placed in slots on the bottom of a cast hotplate body. An insulation with metal cover plates and a lower plate dish ensures the necessary pressing and thermal i... | 12/29/1987 |
| 4714822 | Cooker with means for automatically controlling the heating of a pan with food material Cooker automatically controlling the heating process when bringing a food material to the boil on an electric hotplate and preventing it from boiling over at the end of the heating process. At the beginning of the heating process the power supplied to an ... | 12/22/1987 |
| 4697068 | Electric cooker heating unit A heating unit for cooking points, baking oven muffles or the like is provided on the inside of its outer body (2), in the central zone (10), with two thermal cutouts (17, 18), which are preferably located in a common cutout casing (19) exclusively locate... | 09/29/1987 |
| 4680452 | Electric hotplate with a thermostat An electric hotplate (2) with a cast iron hotplate body (1) has in its unheated central area (14) a thermostat (19) which, by projections (51) on a cover plate (17), is forced into clearly defined contact with the lower surface (50) of the hotplate body (... | 07/14/1987 |
| 4659304 | Molding A mold assembly for supporting a mold in a molding press, heating elements for controlling the temperature of the mold and an insulating arrangement, disposed between the heating elements and structure of the molding press, having an insulating cavity def... | 04/21/1987 |
| 4658118 | Electric hotplate A hotplate is provided on the bottom of its body with a cover plate, through which a lead is passed through an insulator. The stub-like ends of the leads are connected to the outer terminal portions of the multicore cable ends projecting from a positionin... | 04/14/1987 |
