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 |
| 8070020 | Remote hot melt adhesive metering station A new and improved remote, hot melt adhesive metering station (510), for supplying predetermined or precisely metered volumes of hot melt adhesive material toward applicator head or dispensing nozzle structures, comprises a plurality of rotary, gear-type mete... | 12/06/2011 |
| 7383967 | Apparatus and methods for pumping high viscosity fluids A system for dispensing and filtering fluid is disclosed, in which the fluid flow path is substantially vertical from the fluid inlet through fluid dispense. Substantially all wetted surfaces are Teflon® or some similar non-contaminating fluid, for applications suc... | 06/10/2008 |
| 7219818 | Controlled dispensing device A dispensing device that can economically and reliably dispenses predetermined quantity of fluids accurately comprising an elongated rod with one or more through holes formed perpendicularly through its axis defining one or more fluid flow paths. Adjacent to each th... | 05/22/2007 |
| 7182224 | Device for portioning flowable food products The invention relates to a device for portioning flowable food products, consisting of: a first group of cylinders (1) comprising pistons (3) which communicate with a chamber (5) having an inlet (5a) and an outlet (5b... | 02/27/2007 |
| 7097073 | Water gun with adjustable force pressure chamber A toy water gun having a water supply tank which can be filled with water, and a water pump located on the housing for pumping water from the supply tank to at least one water pressure chamber. The water pressure chamber includes at least one fixed wall, and a movea... | 08/29/2006 |
| 7093774 | Device for injecting a pulsed supersonic gas stream The invention relates to a device (100) for injecting a pulsed supersonic gas flux, including a first chamber (2) inside which the gas to be injected is found under pressure on either side of a free piston (4), the device comprising means (12... | 08/22/2006 |
| 6811058 | Valve assembly A valve assembly for a fluid dispenser includes a housing having at least a first opening and a second opening, and a valve member fitted in the housing, the valve member being rotatable about an axis and including a first channel, extending along said axis and comm... | 11/02/2004 |
| 6729560 | Dual component trigger sprayer which mixes components in discharge passage The present invention pertains to a trigger sprayer which is connectable to two container volumes containing separate liquids. The sprayer has a trigger that is manipulated to draw the separate liquids into two separate pump chambers and then supply the two separate... | 05/04/2004 |
| 6637625 | Continuous positive displacement metering valve A continuous operation metering valve, based on true volumetric positive displacement technology, uses an innovative dual rack and drive pinion design that enables the valve to dispense from one meter chamber while the other meter chamber is filling. This... | 10/28/2003 |
| 6607099 | Air drive system A two-component resin or adhesive dispensing system including an air drive motor with adjustable settings which drives, by means of sprocket and chain drive systems, an activator metering pump and an adhesive metering pump as to provide a dispenser with a... | 08/19/2003 |
| 6573884 | ADA convertible input display The present invention relates to a fuel dispenser which is located in a fueling environment that includes a convenience store or a quick serve restaurant. The fueling dispenser includes a display providing menu options and input devices for a user to sele... | 06/03/2003 |
| 6550694 | Dual component trigger sprayer which mixes components in discharge passage The present invention pertains to a trigger sprayer which is connectable to two container volumes containing separate liquids. The sprayer has a trigger that is manipulated to draw the separate liquids into two separate pump chambers and then supply the t... | 04/22/2003 |
| 6463611 | Apparatus for dispensing incompatible chemicals to a common utilization point An apparatus that prevents an undesirable chemical reaction between different liquid chemical streams in a dispenser comprising a dispenser having a common manifold leading to a use locus. The common manifold has a pumping station directed to the common m... | 10/15/2002 |
| 6440311 | System and method for monitoring a dosage pump in a dialysis machine Apparatus is disclosed for monitoring the flow of a fluid through a dosage pump in a dialyzer including an auxiliary pump disposed between a fluid source for the dosage pump and the dosage pump itself, a slave chamber between the auxiliary pump and the do... | 08/27/2002 |
| 6422427 | Dispensing tool and system for reloading the tool A dispensing tool according to the present invention includes a dispensing outlet and at least a first material storage tube having a material storage chamber and an outlet. The tool also includes a drive assembly that is at least partially disposed withi... | 07/23/2002 |
| 6422428 | Segmented applicator for hot melt adhesives or other thermoplastic materials A modular applicator for dispensing liquid including a plurality of manifold segments, a plurality of removable pumps, and a drive motor coupled to each pump. The manifold segments are coupled in side-by-side relation and each includes a liquid supply pas... | 07/23/2002 |
| 6419841 | Fluid dispensing system A fluid dispensing system is provided which has a first diaphragm pump, a filter connected to receive the discharge of said first pump, and an accumulator/second diaphragm pump connected to receive the discharge of said filter. Hydraulic fluids pumped by ... | 07/16/2002 |
| 6325932 | Apparatus and method for pumping high viscosity fluid A system for dispensing and filtering fluid is disclosed, in which the fluid flow path is substantially vertical from the fluid inlet through fluid dispense. Substantially all wetted surfaces are Teflon.RTM. or some similar non-contaminating fluid, for ap... | 12/04/2001 |
| 6321946 | Fusionmate two part adhesive dispensing system A two-component resin or adhesive dispensing system comprises a pair of activator and resin or adhesive metering pumps and a drive motor. The drive motor is a hydraulic drive motor driven by means of a hydraulic pump which, in turn, is driven by means of ... | 11/27/2001 |
| 6251293 | Fluid dispensing system having independently operated pumps A fluid dispensing system is provided which has a first diaphragm pump, a filter connected to receive the discharge of said first pump, and an accumulator/second diaphragm pump connected to receive the discharge of said filter. Hydraulic fluids pumped by ... | 06/26/2001 |
| 6234359 | System for reloading dispensing tools A dispensing tool according to the present invention includes a dispensing outlet and at least a first material storage tube having a material storage chamber and an outlet. The tool also includes a drive assembly that is at least partially disposed withi... | 05/22/2001 |
| 6193111 | Powered condiment pumping system A powered condiment pumping system for pumping controlled portions from a dispenser receiving product from a substantial distance on the order of 30 feet or more. If includes a distantly disposed constant outlet pressure pump and a volumetric piston pump ... | 02/27/2001 |
| 6190565 | Dual stage pump system with pre-stressed diaphragms and reservoir An improved dual-stage pump system is provided for the accurate pumping and filtering of viscous fluids. Two hydraulically activated pumps are provided in series with a filter and reservoir disposed in-line between the two pumps. The reservoir acts as a s... | 02/20/2001 |
| 6186193 | Continuous liquid stream digital blending system The present invention consists of a method and apparatus providing for the continuous stream blending, preferably on a mass ratio basis, of two or more liquids. Each individual liquid stream is synchronously dosed in precise mass ratio to a common mixing ... | 02/13/2001 |
| 6173867 | Installation for conveying a liquid and use of the installation An installation (10) for conveying a liquid from a container (12) to a carrier material (45, 47). The installation (10) comprises a conduit system with two parallel conduit branches (24, 26). A conveying pump (14, 16) is arranged in each conduit branch (2... | 01/16/2001 |
| 6129245 | Washing system with auxiliary reservoir A washing system for dispensing a liquid cleanser from a collapsible container, with a plurality of dispensers, each dispenser having a positive displacement pump, a mount for mounting the pump on a dispenser support, and a connection for connecting the p... | 10/10/2000 |
| 6105829 | Fluid dispensing system A fluid dispensing system is provided which has a first diaphragm pump, a filter connected to receive the discharge of said first pump, and a accumulator/second diaphragm pump connected to receive the discharge of said filter. Hydraulic fluids pumped by c... | 08/22/2000 |
| 5988451 | Washing system A washing system for dispensing a liquid cleanser includes a dispenser having a positive displacement pump and a collapsible bag containing the liquid cleanser. The dispenser includes an inlet and an outlet to the positive displacement pump. The collapsib... | 11/23/1999 |
| 5941418 | Multiple fluid dispensing system A device for dispensing multiple fluids in, for instance, a vehicle service facility is provided with a plurality of control modules. Each of those modules is capable of being connected to a number of pumps, a number of solenoid valves and a number of met... | 08/24/1999 |
| 5890718 | Self-service gasoline pump system with game function The present invention relates to a self-service gasoline pump system with game functions in which a plurality of gasoline dispensers or pumps are respectively provided with a game device, and the game devices are connected in parallel to each other and to... | 04/06/1999 |
| 5829635 | Toy water gun having a continuous water output A toy water gun comprising a housing, water tank, nozzle, pump assembly, piston drive assembly, and crank handle. The pump assembly comprises (a) first and second cylinders, each cylinder having a first cylinder end with an opening for receiving a piston ... | 11/03/1998 |
| 5772899 | Fluid dispensing system having independently operated pumps A fluid dispensing system is provided which has first diaphragm pump means, a filter connected to receive the discharge of said first pump, and accumulator/second diaphragm pump means connected to receive the discharge of said filter. Hydraulic fluids pum... | 06/30/1998 |
| 5766642 | Apparatus for manufacturing granulated material A mechanism for making granulated material from a viscous substance includes a vessel charged with the substance and having a discharge arrangement such as a slit through which the substance can flow onto a cooling surface. A belt disposed above the cooli... | 06/16/1998 |
| 5762795 | Dual stage pump and filter system with control valve between pump stages An improved dual-stage pump system is provided for the accurate pumping and filtering of viscous fluids. Two hydraulically activated pumps are provided in series with a filter and reservoir disposed in-line between the two pumps. The reservoir acts as a s... | 06/09/1998 |
| 5730325 | Toy water gun A toy water gun comprises a main housing including provisions for holding a reservoir of water, a nozzle for receiving and discharging water pumped from the reservoir, and a pump housing positioned substantially outside the main housing. The pump housing ... | 03/24/1998 |
| 5680961 | Configurable system for supplying molten thermoplastic material A system for supplying molten thermoplastic material to a dispenser has a hopper assembly which is made up of one or more hopper units each having opposite side walls being generally parallel to each other, the inlet and the outlet having generally the sa... | 10/28/1997 |
| 5656035 | Refillable fibrinogen dispensing kit Disclosed is a refillable dispenser for separately dispensing each of two biological fluids contained therein for intermixing at a site outside of the dispenser to produce hemostasis or a tissue adhesive. The dispenser is compact, contains integrally form... | 08/12/1997 |
| 5570819 | Foam dispensing pump container A foam dispensing, pump-actuated container to mix air and a liquid at a predetermined ratio has a mixing chamber at a juncture of a liquid flow path and an air flow path from an air cylinder, and the foam is homogenized by a porous sheet-like member provi... | 11/05/1996 |
| 5535950 | Dual trigger sprayer A trigger actuated fluid dispenser for simultaneously dispensing disparate fluids separately stored in separate fluid compartments of a container includes side-by-side pump cylinders receiving side-by-side pump pistons reciprocable simultaneously during e... | 07/16/1996 |
| 5516429 | Fluid dispensing system A fluid dispensing system is provided which has first diaphragm pump means, a filter connected to receive the discharge of said first pump, and accumulator/second diaphragm pump means connected to receive the discharge of said filter. Hydraulic fluids pum... | 05/14/1996 |
