Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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 |
| 7351943 | Automated microwave turntable An automated microwave cooking device turntable assembly includes an anchor member nested to a bottom surface of a microwave cooking device and extending upwardly within a cavity thereof. A drive gear is journaled about the anchor member and rotatable along a counte... | 04/01/2008 |
| 7165276 | Medical assist device A medical assist device relocates patients from a first support such as a bed to a second support such as a chair or wheelchair. Upon location of the assist device to a position adjacent such first support, the patient may stand on a rotatable platform of the assist... | 01/23/2007 |
| 6998593 | Microwave oven with inner container A microwave oven includes a cooking cavity, a skewer which receives food therethrough to hold the food, and a container which contains the food therein so as to prevent oil produced from the food from being adhered to an inner wall of the cooking cavity. Accordingly... | 02/14/2006 |
| 6386498 | Elevated platter for preparing food in a microwave oven A platter for within an oven such as a microwave is provided to hold large food plates or prepackaged meals, such as a pizza. One large dish would be placed below the platter base and one would be placed on the platter base. The platter has three support ... | 05/14/2002 |
| 6338464 | Base assembly of indifferent equilibrium A base assembly of indifferent equilibrium. The base assembly includes a stationary member, a rotatable member and a constant-force spring. The rotatable member is rotatably mounted on the stationary member. The constant-force spring member has an end por... | 01/15/2002 |
| 5726428 | Microwave oven shelf having multiple food supporting surface A freestanding shelving unit for supporting a first and second foodstuff within a microwave oven having an internal oven compartment with a support surface. The unit includes a generally planar, lower base member and a generally planar, upper platform mem... | 03/10/1998 |
| 5268546 | Microwave oven with browning means, a browning plate for use in a microwave oven A microwave oven having browning means which includes a metal browning plate (10), the underside of which is provided with a layer (11) of a ferrite material. Via an input opening (6) for supplying microwaves to the oven cavity, polarized microwaves are p... | 12/07/1993 |
| 5068086 | Method and apparatus for batch fixating tissue specimens Method and apparatus for chemically fixating a plurality of tissue specimens in a multimode microwave oven. The tissue specimens are loaded in respective cassettes and then placed in radial alignment in a circular container that is filled with a fixation ... | 11/26/1991 |
| 5059755 | Low profile oven turntable A rotatable platform having a relatively circular turntable top rotationally supported above a unitary base by a plurality of wheels which make tangential point contact with the underside of the turntable top. The base includes a raised rim portion that c... | 10/22/1991 |
| 4965425 | Automatic turntable for microwave oven A spring-powered turntable for use in a microwave oven includes microwave energy responsive assembly for automatically permitting rotation of the turntable when microwave energy exposure begins and for automatically turning off rotation of the turntable w... | 10/23/1990 |
| 4886948 | Portable turntable with shielded drive motor for microwave ovens Portable turntable for rotating food in a microwave oven, including a self-contained motor which drives a rotatable platform upon which the food is mounted. The turntable is made of a material having a low loss tangent at microwave frequencies, and the dr... | 12/12/1989 |
| 4885446 | Load-responsive microwave oven turntable A microwave oven turntable having a load-responsive mechanism for self-activating the turntable upon the placement of foodstuff thereon. The turntable includes a base assembly having a planar bottom and upwardly extending sides to form a base interior in ... | 12/05/1989 |
| 4808781 | Directly driven microwave oven turntable top A portable microwave oven turntable having a base assembly defining a base interior. The base assembly includes a planar bottom and upwardly extending sides supporting a circular base cover member. Within the base interior is a spring motor which may be w... | 02/28/1989 |
| 4788397 | Drive motor assembly and turntable utilizable the same Portable turntable and drive motor assembly for use in microwave ovens. The drive motor assembly is positioned to one side of the turntable platform and has a low profile so that it will not interfere with the rotation of overhanging objects on the platfo... | 11/29/1988 |
| 4754111 | Portable turntable for ovens Turntable for rotating food being cooked in a microwave oven, including a rotatable platform upon which the food is mounted and a drive motor positioned to the side of the platform. The turntable is made of a material having a low loss tangent at microwav... | 06/28/1988 |
| 4746781 | Portable turntable for use in microwave ovens and having a movable detent for selectively allowing and preventing turntable rotation A device for rotating food while cooked in a microwave oven includes a metal housing supported above the oven floor by dielectric feet, and a turntable mounted above the housing. The turntable is rotatable by virtue of a turntable shaft having downwardly ... | 05/24/1988 |
| 4717802 | Microwave oven rotisserie assembly A portable rotisserie assembly for use in a microwave oven. The assembly comprises a base adapted to rest on a turntable or directly on the floor of the oven cavity, a rotor mounted on the base for rotation about a horizontal axis, and a drive motor mount... | 01/05/1988 |
| 4713513 | Microwave oven turntable shelf structure A shelf structure is provided for use with a turntable in a microwave oven. The shelf structure includes a food-supporting platform and a base which rests on the table of the turntable. A first food product is placed on the turntable, and a second food pr... | 12/15/1987 |
| 4694132 | Microwave oven turntable with removable table top A microwave oven turntable having a removable table top driver at various points about its circumference. The turntable includes a base having a flat bottom and an upwardly extending cylindrical side wall. A central drive shaft is rotatably mounted to the... | 09/15/1987 |
| 4647745 | Drive motor assembly and turntable utilizing the same Portable turntable and drive motor assembly for use in microwave ovens. The drive motor assembly is positioned to one side of the turntable platform and has a low profile so that it will not interfere with the rotation of overhanging objects on the platfo... | 03/03/1987 |
| 4636605 | Mode stirring turntable for microwave oven A turntable for microwave oven is disclosed, comprising a base (4), having a platform (2) rotatively mounted thereto. A motor assembly (6) is mounted to an underside of the platform (2) and engages with a gear ring (28) in the base (4), whereby turning th... | 01/13/1987 |
| 4625087 | Portable turntable for use in microwave ovens Locking mechanism for a mechanically driven, low profile, portable turntable for use in cooking ovens, especially microwave ovens, for rotating foodstuffs while cooking. The low profile turntable includes a spring which varies the height of the rotating p... | 11/25/1986 |
| 4593171 | Microwave oven turntable shelf structure and method A shelf structure is provided for use with a turntable in a microwave oven. The shelf structure includes a food-supporting platform and a base which rests on the table of the turntable. A first food product is placed on the turntable, and a second food pr... | 06/03/1986 |
| 4590351 | Compact portable turntable for microwave ovens Compact turntable for use in microwave ovens. The drive motor assembly is positioned entirely beneath the rotating platform having a ring of inwardly facing gear teeth and has a relatively low profile. This turntable can be utilized in smaller oven caviti... | 05/20/1986 |
| 4539455 | Adjustable shelf for microwave ovens Adjustable shelf for use in microwave ovens. The shelf includes a horizontally extending platform and a plurality of legs which can be moved into different positions to support the platform at different heights above a supporting surface.... | 09/03/1985 |
| 4523070 | Low profile food rotator A mechanically-driven, low-profile, portable turntable for use in cooking ovens, especially microwave ovens, for rotating food stuffs while cooking. All moving parts, except the power spring used to drive the turntable are formed from low loss plastic and... | 06/11/1985 |
| 4517432 | Cavity antenna microwave powered turntable A portable turntable for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including an electric motor which is mounted in and enclosed... | 05/14/1985 |
| 4504715 | Portable turntable for use in microwave ovens A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials whi... | 03/12/1985 |
| 4456805 | Portable turntable for use in microwave ovens A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials whi... | 06/26/1984 |
| 4434343 | Turntable for microwave oven A two level turntable adapted for use in a microwave oven. The top level platform which may include a roasting rack is removably supported above the bottom level by a plurality of columns. The bottom level platform has a shaft that extends downwardly thro... | 02/28/1984 |
| 4330696 | Portable turntable for ovens Turntable for rotating food being cooked in a microwave oven, including a rotatable platform upon which the food is mounted and a drive motor positioned to the side of the platform. The turntable is made of a material having a low loss tangent at microwav... | 05/18/1982 |
| 4330697 | Drive motor assembly for use in a microwave oven Drive motor assembly for use with a turntable, rotisserie or other appliance in a microwave oven. The motor assembly is self-contained and can be used interchangeably with different appliances. It can be positioned in a corner of the oven cavity where it ... | 05/18/1982 |
| 4308445 | Controlled movable support for microwave oven A microwave oven structure wherein a movable food support is selectively positionable in any one of a plurality of preselected different discrete positions. The support may be moved to the different positions during the cooking cycle as by a programmed ti... | 12/29/1981 |
| 4258630 | Portable turntable for use in microwave ovens A portable turntable apparatus for use in microwave ovens which is used as a supporting base for a container of food which is cooked within the oven and adapted to gradually rotate the same, the apparatus including a motor including metallic materials whi... | 03/31/1981 |
| 4254319 | Portable microwave oven-turntable device In a preferred embodiment of the invention, a totally non-metallic and portable turntable and driving mechanism thereof, insertable into microwave oven space the same as any other item would be placed into the oven space, having a plastic coil spring as t... | 03/03/1981 |
| 4239009 | Portable turntable for microwave oven A turntable is provided for a microwave oven for rotating foodstuffs placed thereon and effecting uniform heating of the foodstuffs. The turntable includes a base, a rotatable table for receiving foodstuffs, and drive means mounted on the base for rotatab... | 12/16/1980 |
| 4219715 | Microwave powered turntable for microwave ovens A microwave powered turntable for use in microwave ovens includes a platform for supporting food which is mounted on a base that contains an electric motor and associated drive circuitry. The drive circuitry obtains power from an antenna projecting into a... | 08/26/1980 |
| 4216727 | Portable turntable for microwave oven A turntable is provided for a microwave oven for rotating foodstuffs placed thereon and effecting uniform heating of the foodstuffs. The turntable includes a base, a rotatable table for receiving foodstuffs, and drive means mounted on the base for rotatab... | 08/12/1980 |
