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 |
| 7637440 | Suck back valve A suck back valve comprises a suction amount-adjusting mechanism including a screw member which regulates a displacement amount of a second piston integrally displaceable with a second diaphragm in accordance with abutment of a disk-shaped member, a rotary driving s... | 12/29/2009 |
| 7445163 | Suck back valve A suck back valve comprises an ON/OFF valve, a suck back mechanism which includes a second piston connected to a second diaphragm to make displacement integrally and a second spring member fastened to the second piston, a load sensor which detects a load applied by ... | 11/04/2008 |
| 7407115 | Nozzle arrangement The present invention relates to improvements in or relating to a nozzle arrangement. Th nozzle arrangement of the present invention are adapted to be fitted to a container and actuate the release of the contents stored in the container. The nozzle arrangement has a... | 08/05/2008 |
| 7328859 | Power sprayer The present invention is a dispenser adapted to be coupled to a fluid container. The dispenser comprises a dispensing head, an energy source, and a fluid pathway. The dispensing head includes a fluid pump, a motor adapted to power the pump, a trigger adapted to cont... | 02/12/2008 |
| 7328853 | Reversible spray tip unit There is provided a turret member for a reversible airless spray tip unit having an easily readable identification device or indicia for the particular turret member imprinted on a tag or label attached to a securing device or attaching ring secured to the handle of... | 02/12/2008 |
| 7320414 | Beverage dispense A beverage dispense system has a dispense nozzle with inlet sections for connection to beverage supplies that merge into an outlet section sized to match the flows such that a unit volume of beverage can be dispensed more quickly. The inlet sections are provided wit... | 01/22/2008 |
| 7317971 | System for controlling fluid flow based on a valve break point Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention ... | 01/08/2008 |
| 7291008 | Needle shut-off nozzle for an injection molding machine The needle shut-off nozzle is provided in a housing for delivering polymer melt to an injection molding machine or an injection molding tool. The nozzle is mounted in a channel of the housing for a flow of the polymer melt, a nozzle at an outlet of the channel, a sh... | 11/06/2007 |
| 7191957 | Peristaltic machine for depositing viscous materials A peristaltic depositing machine includes a hopper to store viscous material. A flexibly deformable tubing section is connected to the hopper for receiving the viscous material. A pair of rollers cooperate to compress tubing section and thereafter move forwardly alo... | 03/20/2007 |
| 7143956 | Suck back valve A suck back valve includes an ON/OFF valve mechanism which opens/closes a fluid passage by displacing a valve member together with a first piston under an action of a pressure fluid supplied into a first cylinder chamber, and a suck back mechanism which has a suctio... | 12/05/2006 |
| 7128283 | Paint spraying nozzle assembly A paint spraying nozzle assembly includes a housing having a top wall, a bottom wall a peripheral wall that has a peripheral outer shoulder such that the bottom wall has a greater diameter than the top wall. An opening extends through the bottom and top walls. The o... | 10/31/2006 |
| 7124961 | Sprayer system A sprayer system includes one or more spray nozzle systems and a recirculation line which contains a Venturi for recirculation of non-sprayed liquid into a tank during breaks in spraying. To facilitate circulation, restrictors are placed in an upstream area of each ... | 10/24/2006 |
| 7124792 | Manual bulk liquid pump control and distribution system The present invention is directed to a manual bulk liquid pump control and distribution system that utilizes a single-handle manual operation for direction of flow and speed, along with providing a neutral position for standby. The system can be operated at a rate o... | 10/24/2006 |
| 7107128 | System for controlling fluid flow Embodiments of the present invention provide systems and methods of controlling fluid dispense to ensure clean break off of fluid at the end of a dispense process and to reduce crystallization of fluid in the dispense nozzle. One embodiment of the present invention ... | 09/12/2006 |
| 7070160 | Diaphragm valves A diaphragm valve capable of increasing durability of a diaphragm comprises a valve body internally formed with a valve chamber having an open upper end and a suck-back chamber having an open lower end, between an inlet passage and an outlet passage, and a through h... | 07/04/2006 |
| 7066406 | Paint sprayer A paint sprayer for spraying a fluid comprises a housing that houses a motor, a pump, and a fluid passage. A handle is coupled to the housing and a paint cup is coupled to the handle for storage of a fluid. The handle is positioned between the housing and the paint ... | 06/27/2006 |
| 7066194 | Valve design and configuration for fast delivery system Embodiments of the present invention relate to a method and apparatus for rapid delivery of pulses of one or more reactants to a substrate processing chamber. One embodiment of a valve body includes a first inlet, a second inlet, and an outlet. A valve chamber is in... | 06/27/2006 |
| 7036751 | Pump operated spraying device A water gun and a watering container using an electrically operated peristaltic pump for pumping water through a nozzle located at the end of a tube connecting a reservoir with an outlet opening. The pump is electrically controlled by a trigger mechanism in a handle... | 05/02/2006 |
| 7021571 | Spray device with flat fan nozzle The present invention relates to a portable device for spraying a liquid at low pressure, said device comprising a spray arm (220), and characterized in that the spray arm comprises at least one flat fan spray nozzle (230). Preferably, the liquid is a ... | 04/04/2006 |
| 7014069 | Dosage pump A dosage pump which includes a pump body and a control means with rest and distribution positions. The control means includes a dosing chamber, a return spring, and a member to ensure friction braking of the sliding movement of the actuating members of the pump.... | 03/21/2006 |
| 6978944 | Reversible spray tip unit There is provided a reversible spray tip unit for an airless spray gun having an axially rotatable cylindrically shaped turret member with the spray tip nozzle arranged in a diametric fluid bore therein, the turret member being disposed in a complementary shaped bor... | 12/27/2005 |
| 6948517 | Two-way valve A piston is arranged in a connecting body. A first diaphragm is provided at a lower portion of a shaft which is displaceable in the axial direction together with the piston. A second diaphragm is provided at an upper position spaced by a predetermined distance from ... | 09/27/2005 |
| 6938838 | Nozzle and aspirator with nozzle The present invention provides a nozzle capable of easily removing an aspiration object (residual solidified object) and an aspirator equipped with such a nozzle. This nozzle is connected to the aspirator and is used to aspirate the aspiration object. The nozzle com... | 09/06/2005 |
| 6923346 | Foaming liquid dispenser A manually operated liquid foaming dispenser is attached to the top of a container of liquid and is manually vertically reciprocated to dispense the liquid from the container as a foam. The dispenser includes a liquid pump chamber and an air pump chamber that respec... | 08/02/2005 |
| 6918546 | Reversible spray head Reversible spray head, including a reversible element or key (5) placed in a central body and through which is a channel (9) with a spray insert (10, 11) on each end; rotating the element or key 180° allows changing from one spray hole to the o... | 07/19/2005 |
| 6877306 | Nozzle assembly with flow divider and ecology valve A fuel system having an ecology valve controlling liquid flow through a retention passage when pressurized liquid is passed through the valve is presented. The retention passage winds between the valve outlet and a cavity such that no matter which way the valve is o... | 04/12/2005 |
| 6863229 | Spray head Spray head 1 especially for a high-pressure spray gun, comprising a rotary element 3, which is placed in a central body 2 and through which passes a spray nozzle 37, and a seal 4 ensuring leak-tightness between the rotary element | 03/08/2005 |
| 6769627 | Fluid dispensing device with self-cleaning nozzle and methods of use The invention relates to a fluid or beverage dispensing device having self-cleaning dispensing nozzle. The device includes a body provided with a conduit having a first end to which a dispensing nozzle is connected, and a second end to which a fluid inlet line is in... | 08/03/2004 |
| 6755354 | Suck back valve A suck back valve has a volume-varying mechanism including a cylindrical flexible member which has a flow chamber formed therein for communicating with a fluid passage having a first port and a fluid passage having a second port, a fixing member which fixes a part o... | 06/29/2004 |
| 6719212 | Spray head The invention concerns a spray head for high pressure spray gun comprising a rotary element located in a central body and traversed by a channel with a spray orifice and a sealing joint between the rotary element and the gun, the rotary element having in its central... | 04/13/2004 |
| 6702199 | Coolant feeding device of machine tool The present invention prevents coolant from leaking out of a valve (23) after a feed pump (4) stops feeding the coolant, and diminishes a time-lag between the onset of feeding the coolant and mist generation, when the feed pump (4) starts feeding the cool... | 03/09/2004 |
| 6702198 | Reversible airless spray tip assembly A reversible airless spray tip is provided with a housing for mounting to the front of a spray gun, a sealing saddle insertable into the housing, a seal associated with the saddle and a rotatable cylinder having a handle and containing an airless tip. The... | 03/09/2004 |
| 6698629 | Comestible fluid dispensing tap and method The comestible fluid dispensing system of the present invention preferably employs a pump or valve operable to control movement of comestible fluid from a comestible fluid source to a tap provided with a draw-back valve. The draw-back valve is preferably ... | 03/02/2004 |
| 6688580 | Adjustable die for a fluid dispenser and method A die for dispensing a fluid onto a substrate, wherein the die has an movable lip adjacent a fixed lip to form a die opening therebetween. An actuator is mechanically connected to the movable lip and is operable to automatically move the movable lip with ... | 02/10/2004 |
| 6672517 | Valve for fuel burner The invention relates to a system made of an oil pump and of a magnet valve for preventing oil from dripping when the oil burner is switched off. The inventive system is provided with an oil pump (23) and a magnet valve (10) which has a closing body (16) ... | 01/06/2004 |
| 6655606 | Multiple nozzle tip assembly for airless paint sprayer gun A spray tip assembly for airless paint sprayer guns incorporates a tip having multiple nozzles, each of which may be used independently. For a first embodiment of the invention the shaft of the spray tip assembly incorporates multiple spaced apart nozzles... | 12/02/2003 |
| 6626332 | Method and device for the controlled dispensing of cleansing foam The invention relates to a dispenser for foamable liquids which has been improved with regard to the aspects of hygiene and reliability. According to the method, in addition to the pneumatic and hydraulic parts of the dispenser having a configuration whic... | 09/30/2003 |
| 6619025 | Ecology valve and system in an aircraft engine fuel system The present invention is directed toward an ecology valve that drains working fuel to the sump chamber of the ecology valve upon engine shut down. The ecology valve has a piston slidable in the piston chamber between shut-off and run positions. The piston... | 09/16/2003 |
| 6612505 | Spraying method of a dispense system A spraying method of a dispense system for preventing residue, wherein a precise amount of stream fluid is supplied from a fluid supply through a main tube to a nozzle, and the precise amount of stream fluid is sprayed onto a surface of a wafer. A sub-tub... | 09/02/2003 |
| 6595437 | Packaged product The present invention relates to a packaged product (1) comprising a package having a liquid reservoir (2) for containing a product, preferably a cleaning product, and a means for delivering the product (4) in a labour efficient way and in a uniform manne... | 07/22/2003 |