Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 4817878 | Rotatable tool power lock retention apparatus for food processor Power lock tool retention apparatus for a food processor includes at least one flattened section on the drive shaft with an associated horizontal notch. A socket extending downwardly on the inside of the rotary tool hub is placed onto this drive shaft dur... | 04/04/1989 |
| 4813624 | Overhead releasable elevating spindle drive for a rotary food processing tool A rotary food processing tool has an elongated upright hub rotatable about a vertical axis with sockets in its upper and lower ends. Each socket has inclined grooves, and the elongated hub is adapted to be driven from a motor drive unit mounted on top of ... | 03/21/1989 |
| 4740020 | Multiple-step release lock for a storage container A cover is manually releasably locked to the base of a storage container for protecting the contents of the container from accidentally or inadvertently opening even on dropping. A forked member is mounted on the cover having tongues with eyelets extendin... | 04/26/1988 |
| 4733827 | Rotary food processor tool storage container A rotary food processor tool storage container is provided for storing and protecting specially configured food processor tools and accessories, and more particularly, a metal blade, a dough blade, and a detachable stem for removable head disc-type tools.... | 03/29/1988 |
| 4734604 | Friction braking system and apparatus for appliance induction motor drive A friction braking system located entirely inside an induction motor of an appliance quickly stops rotation of the rotor in the appliance motor, for example such as a food processor, whenever the A.C. electrical power is turned off. Thus, rotation of any ... | 03/29/1988 |
| 4723719 | Invertible/reversible tool for use in a rotary food processing appliance An invertible/reversible tool for use in a rotary food processing appliance is provided for performing predetermined processing operations in a first position and other predetermined operations in a second upside down position in a working bowl, which bow... | 02/09/1988 |
| 4702162 | Salad spinner dryer apparatus rotated by speed reducing friction drive for use wih food processors A salad spinner dryer attachment is provided for a food processor having a base housing containing an electrical motor drive with a deck located on top of the base housing for removably mounting a working bowl thereon in predetermined engaged fixed positi... | 10/27/1987 |
| 4688478 | Adapter support, pureer/strainer and juicer attachments for use on food processor bowls A bowl extender-actuator-and-adapter support has larger upper and smaller lower annular channel members separated by an intermediate shelf and is adapted to be mounted on the bowl of a food processor wth the lower channel member extending down into the bo... | 08/25/1987 |
| 4688728 | Apparatus for adapting revolving beater/whipper unit to food processor working bowls of various diameters A method and apparatus adapt a beater/whipper unit to be used in food processor bowls of varying diameter which have upstanding side walls wherein a revolving head of the beater/whipper unit is mountable on an upstanding central well of each working bowl.... | 08/25/1987 |
| 4657332 | Method and apparatus for conveniently providing a 220 volt electric outlet in a home kitchen A 220 Volt electric outlet is conveniently provided in a kitchen without requiring an electrician. The control switch for a heater element in an electric kitchen range is turned "OFF". This heater element is lifted from its well and unplugged or disconnec... | 04/14/1987 |
| 4647727 | Switch for automatically interrupting a circuit when its contacts are fused together in the "ON" position A safety switch for automatically interrupting a circuit when its main contacts are fused or stuck together in the "ON" position comprises a housing containing a pair of main contacts and auxiliary safety contacts which are normally closed but are automat... | 03/03/1987 |
| 4645886 | Switch for automatically providing a safety function when its contacts are fused together in the "ON" position A switch for providing a safety function when its main contacts are fused or stuck together in the "ON" position, comprising a housing containing a pair of main contacts, one being designated an ON contact, and the other main contact being carried by a mo... | 02/24/1987 |
| 4634061 | Method and apparatus for grinding kernels of grain, coffee beans, and the like in a food processor Method and apparatus for quickly and effectively grinding kernels of grain, such as wheat or corn, coffee beans, and the like, in a food processor producing a finely divided or flour-like consistency food product or condiment. Nutritious home-ground whole... | 01/06/1987 |
| 4629131 | Magnetic safety interlock for a food processor utilizing vertically oriented, quadrant coded magnets An improved safety interlock for a food processor of the type including a control system for preventing actuation of a powerful motor drive, so that the food processing tool does not rotate, unless two conditions have been met; namely, (1) a bowl is mount... | 12/16/1986 |
| 4589599 | Ice chopper apparatus for producing ice particles of controlled size An ice chopping apparatus is provided for a food processor having a base containing a motor and a motor-driven rotary tool drive which extends into a working bowl. The apparatus involves mounting a rotary ice chopping tool on the tool drive in the working... | 05/20/1986 |
| 4562771 | Flip-over drive system for a removable oven rotisserie A flip-over drive system for a removable oven rotisserie comprising drive means, gear train means driven by the drive means, cam means mechanically coupled to the gear train means for rotation in response to the driving of the gear train means by the driv... | 01/07/1986 |
| 4557389 | Storage rack for food processor tool discs A rack is disclosed for storing food processor tool discs of the type having a receptacle or socket structure offset from its axis of rotation and located beneath the lower surface of the disc for receiving the upper end of a removable elongated hub on wh... | 12/10/1985 |
| 4544103 | Enlarged food pusher with clean-out windows in a feedtube protector An enlarged food pusher with clean-out windows is provided in a feedtube protector assembly utilized with a food processor. The feedtube protector includes an outer sleeve nestable around the exterior of an expanded feedtube which forms a first passageway... | 10/01/1985 |
| 4540128 | Lock for food pusher in feed tube protector of a food processor Lock for the food pusher in a feedtube protector of a food processor. The feedtube protector has an outer sleeve nestable in a predetermined position around the exterior of the feedtube with a first food pusher captured in telescoping relationship within ... | 09/10/1985 |
| 4512522 | Single vertical motion feedtube protector and actuator for a food processor A feedtube protector and actuator for a food processor having a cover with a feedtube of relatively large cross-sectional area, sometimes called an "expanded" feedtube. The cover remains secured in its normal operating position on the bowl during loading ... | 04/23/1985 |
| 4448100 | Rotary slicing tool for a food processor A rotary food slicing tool is provided for use in a food processor of the type having a housing with a motor drive and a working bowl mountable on the housing which is adapted to encircle the food slicing tool. The tool has an elongated hub with a lower e... | 05/15/1984 |
| 4409528 | Motor speed control circuit providing armature current sensing and feedback action for each half cycle and control circuit reducing energy consumption of induction motors when running under no load and light loading A motor speed control circuit in which a source of alternating current (AC), a universal-type motor, a triac and a large capacitor are connected in series, with the armature current flowing through the large capacitor and with the control providing armatu... | 10/11/1983 |
| 4396159 | Protective guide structure for preventing inadvertent actuation of a food processor with a tilted cover A protective guide and blocking structure are provided for preventing inadvertent actuation by a misaligned or tilted cover on a food processor of the type including tool drive means driven by a motor located in a base with control means for rendering the... | 08/02/1983 |
| 4395670 | Hybrid electrical braking method and system for tool equipment having induction motor drives A hybrid electrical braking method and system are provided for tool equipment having induction motor drives. This hybrid electrical braking can be used to advantage in various types of induction motor driven tool equipment where it is desirable rapidly to... | 07/26/1983 |
| 4393737 | Julienne cutter for food processors A julienne cutter is provided having a hub removably engageable with the drive of a food processor and a disc-like member secured to the hub. The disc-like member has an opening extending from a region near the hub to a region near the periphery and there... | 07/19/1983 |
| 4383813 | Pasta extruder apparatus A pasta extruder for forming strand-like pasta. The extruder housing has a feed hopper and gears for feeding the pasta mixture to be extruded into the apparatus. An extrusion die plate having a plurality of extrusion orifices is mounted in the housing adj... | 05/17/1983 |
| 4371118 | Magnetic safety interlock method and apparatus for food processor Safety interlock method and apparatus employing magnetic effects for food processors having a base enclosing a motor drive, working bowl detachably mountable on the base for receiving various rotatable tools removably installable on drive means in the bow... | 02/01/1983 |
| 4367667 | French fry cutter for food processors A French fry rotary cutter tool is provided for use in food processors having a hub removably engageable with the drive means of the food processor and a disc-like member secured to the hub having an opening extending from a region near the hub to a regio... | 01/11/1983 |
| 4241302 | Capacitive braking switching system for home appliances with induction motor drive An improved capacitive braking system is provided for fractional Horsepower induction motors in home appliances, for example in a food processor of the type having a working bowl mounted on a housing containing the induction motor, with a shaft in the bow... | 12/23/1980 |
| 4226374 | Two level feed tube for food processor An integral two level feed tube is provided for a food processor having a working bowl for enclosing a rotary tool, and a removable cover adapted to be locked on the bowl with the two level feed tube forming a passageway through the cover into the bowl th... | 10/07/1980 |
| 4216917 | Safety interlock for the food pusher in a food processor An improvement in a food processor of the type having a housing enclosing a motor, a drive shaft extending from the housing, a working bowl which is detachably mountable on the housing in position to surround the shaft for receiving the various rotatable ... | 08/12/1980 |
| 4213570 | Food processor with metering dispenser An improvement in a food processor of the type which includes a working bowl mountable on a base housing and enclosing rotatable food processing tools. The bowl includes a removable cover having a food receiving hopper therethrough. The improvement compri... | 07/22/1980 |