Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7476019 | Agitator for mixing or agitating target material by rotating vessels containing the material The agitator of the present invention comprises: a drive source; a differential unit; a rotation-direction switching unit; and a brake unit. The drive source generates rotational driving forces. The differential unit and rotation-direction switching unit are positio... | 01/13/2009 |
| 7261800 | Automatic in situ electrophoresis method and apparatus A method of in situ electrophoresis of biological samples has the steps of preparing a sample plate and a gel plate, applying reagent onto the gel plate, moving an applicator to the sample plate so as to receive a sample onto the applicator, moving the applicator to... | 08/28/2007 |
| 7195394 | Method for resonant wave mixing in closed containers A method and apparatus is provided for non-invasively mixing ingredients in closed containers. Mixing is performed by inducing waves in the liquid to be mixed. This is achieved by rocking the container in precise phase so as to produce resonance. With the waves movi... | 03/27/2007 |
| 7128463 | Portable mixer A portable mixer comprising a frame assembly. Wheels are operatively mounted on the frame assembly. A deck assembly is pivotally mounted on the frame assembly for tilting forwardly and rearwardly. A mixing bag is suspended from the frame assembly. ... | 10/31/2006 |
| 6946242 | Method for maintaining the viability of sperm A rocker for extended, refrigerated storage or transport of fish sperm comprising a platform for sperm containers, drive mechanism, a power supply with an on/off switch or rheostat, and water resistant housing. This device imparts continuous rocking motion to the sp... | 09/20/2005 |
| 6238330 | Microcentrifuge A flow-through microcentrifuge comprising a container in which a sample is placed, and a power source capable of rotating the container around an axis. High speed rotation causes the components of the sample to separate according to their respective densi... | 05/29/2001 |
| 5409312 | Orbital shaking attachment An orbital shaking attachment can be fitted or removed from a magnetic stirrer thereby giving the stirrer the extra function of orbital shaking in addition to its primary function of magnetic stirring. The principal of he invention could also be used to m... | 04/25/1995 |
| 5380087 | Pharmaceutical mixing container with rotationally mounted housing A pharmaceutical mixing container for storing a liquid having at least two factions which tend to separate during storage. A cartridge housing having an inner volume is closed at one end by a septum arrangement and at another end by a slidable sealing mem... | 01/10/1995 |
| 5375927 | Reversing orbital platform mixer An orbiting platform mixer having a reversing cycle of operation. In response to input signals defining set points for the platform velocity, the mixing cycle time and the reversing period, a control commands a reversing cycle of a rotation of the orbitin... | 12/27/1994 |
| 5288146 | Rocking, rolling composters This invention involves a cylinder of circular section, with one end raised about 5 degrees above the other, and capable of being rolled back and forth through an arc of approximately 210°, 105° in either direction from a central position, or in some ca... | 02/22/1994 |
| 5167928 | Laboratory shaker apparatus A shaker apparatus is provided for laboratory testing. The apparatus comprises a base that is reciprocally movable relative to a sub-base. A frame is mounted to the base and includes spaced apart vertical supports with a horizontal support assembly rotata... | 12/01/1992 |
| 5149423 | Apparatus for the purification of waste water with swivelling mixing container An apparatus for purifying waste water by precipitating out foreign material as solids and separating the solids from the purified water comprising a rotatable semi-cylindrical open container and a band filter beneath the container for receiving the conte... | 09/22/1992 |
| 5050996 | Paint shaker apparatus powered by a pneumatic sanding tool A paint shaker apparatus utilizing a typically hand held pneumatic random orbital sanding tool (14) as motor and crankshaft. A base housing (10) is adapted to receive and support a pneumatic random orbital sanding tool (14) with the sanding pad removed. T... | 09/24/1991 |
| 4913554 | Lifting apparatus A lifting apparatus includes a load support device for engaging and supporting a load as the load support device and the load are moved between a lowered position and a raised position relative to a base. A pair of spaced lifting arms are connected at fir... | 04/03/1990 |
| 4850701 | Skid-mounted self-leveling mixer apparatus A self-leveling mixing apparatus includes a transportable skid frame. A mixing tub is supported from the frame in a manner such that the tube is movable between first and second positions relative to the frame. The tube has a tub fluid outlet defined in a... | 07/25/1989 |
| 4842415 | Paint shaker A paint shaker (1) for use in in-store paint tinting operations comprising a platform (2) and clamping member (4) for accommodating a paint container (3) which is to be shaken wherein the shaker is provided with means for sensing resistance to downwards m... | 06/27/1989 |
| 4802141 | Self-leveling mixer with mechanical agitation A self-leveling mixer apparatus includes a base and a generally downwardly tapered movable mixing tub supported from the base in a manner such that the tub is movable between first and second positions relative to the base. A leveling valve is provided fo... | 01/31/1989 |
| 4652712 | Microwave appliance used for warming blood or blood derivatives stored in a bag A microwave appliance serving to warm blood or blood derivatives stored in a bag possesses a microwave generator and a receiving apparatus, provided in the warming chamber, for a bag (8). This axis (26) of the bag (8) is arranged transversely to the axis ... | 03/24/1987 |
| 4523855 | Shaker A shaker particularly adapted for mixing the components of a liquid base material in a miniature size container includes a housing which carries a low voltage, high speed rotary output electric motor. The motor may be energized by batteries or by a domest... | 06/18/1985 |
| 4490047 | Constant level additive mixing system A mixing system comprising a movable mixing tub, a pumping source and a leveling valve interconnected to the mixing tub and the inlet or outlet of 10 the pumping source. The mixing system may include jet-type mixer to mix dry materials with fluid to be fu... | 12/25/1984 |
| 4203357 | Oscillating cooking apparatus A cooking device including an open topped vessel having a prismatic form and a polygonal base which is mounted for rotation about a horizontal axis parallel to its length. Motor means for oscillating the vessel in a rocking motion about the axis and a hea... | 05/20/1980 |
| 4184777 | Agitator An agitator for use in developing photographic film has an upright oscillatable shaft with a platform at its upper end for supporting a developing tank, spring means urging the upright shaft to a neutral position, a motor-driven shaft normal to the uprigh... | 01/22/1980 |
| 4162129 | Wine aerator A wine breather apparatus for aerating wine having a motor driven oscillating coupler for connecting two wine containers to flow wine from one container to the other upon oscillating of the coupler and the containers to aerate the wine with a valve on the... | 07/24/1979 |
| 4073225 | Rocking meatball cooker A cooker for meatballs and the like has a semi-cylindrical trough mounted on a frame for rotation about its own substantially horizontal but slightly inclined axis. The trough is rocked to and fro by a controlled driving device to swing between extreme po... | 02/14/1978 |
| 4004784 | Machine for preparing orthopedic cast-making materials Machine for sequentially rotating and tilting a container having materials therein for wetting or impregnating a tape to be used for forming an orthopedic cast, the machine having a turntable rotatable about a horizontal axis, a platform on the turntable ... | 01/25/1977 |
| 3973760 | Ultrasonic cleaning and sterilizing apparatus Apparatus for the ultrasonic cleaning and sterilization of soft contact lenses and fenestrated hard contact lenses at a temperature that is low relative to that of pasturization is disclosed. A transducer element is electrically connected to a source of o... | 08/10/1976 |
| 3958434 | Washing machine A washing machine comprises two frames each mounting a plurality of tubular wash receptacles and arranged to oscillate on a support in opposite directions. Connecting rods resiliently affixed to each frame interconnect the two frames and constitute an osc... | 05/25/1976 |
