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 |
| 8087597 | Spray gun structure A spray gun structure comprises a control valve mounted into an assembling chamber of a body and regulated by an adjusting device to control the on/off of water discharge thereby. A coupling sleeve is joined to the body with an abutment surface of a water-sealing sl... | 01/03/2012 |
| 8066205 | Pressure-siphon switch for pneumatic spray gun An apparatus for use with a paint container includes a nozzle and a housing. The nozzle receives paint from the container. The housing has a handle, an air inlet, and an air flow path configured to direct air from the inlet into the container. A valve body opens and... | 11/29/2011 |
| 8016213 | Controlling temperature in air-powered electrostatically aided coating material atomizer A coating dispensing device includes a trigger assembly for actuating the coating dispensing device to dispense coating material and a nozzle through which the coating material is dispensed. The coating dispensing device further includes a first port adapted to supp... | 09/13/2011 |
| 7992809 | Manual air-actuated spray paint apparatus and associated method Provided is a manual air-actuated spray paint apparatus and associated method for evenly disbursing paint in a controlled manner. Such an apparatus preferably includes a portable reservoir for holding the paint therein and a hand-actuated paint applicator removably ... | 08/09/2011 |
| 7988075 | Circuit board configuration for air-powered electrostatically aided coating material atomizer A coating dispensing device includes a trigger assembly for actuating the coating dispensing device to dispense coating material and a nozzle through which the coating material is dispensed. The coating dispensing device also includes a first port adapted to supply ... | 08/02/2011 |
| 7866573 | Ergonomic spray gun A fluid control spray gun stops, starts and controls flow of fluids through a nozzle. The gun has a fluid entry port; a trigger that controls fluid flow by movement of a pin; a handle that moves the trigger; a fulcrum point on the handle; three floating pins compris... | 01/11/2011 |
| 7815130 | Reservoir with refill inlet for hand-held spray guns A paint reservoir has a fluid outlet 115 connectable to a spray gun 101 and a fluid inlet 131 provided with a removable screw cap 132 whereby the fluid inlet 131 is directly accessible for introducing paint to the reservoir while a... | 10/19/2010 |
| 7789327 | Modular spray gun with replaceable components A system, in certain embodiments, may include a spray coating device leaving a plurality of casings coupled together to define an exterior contour and a hollow interior of the spray coating device. The spray coating device also may include a plurality of modular com... | 09/07/2010 |
| 7628343 | Triggers for fluid applicators Trigger assemblies and trigger studs for gun bodies. ... | 12/08/2009 |
| 7533833 | Watering nozzle assembly with mist mode A watering nozzle assembly includes an adjustment member received in the barrel and an outlet device is connected to the adjustment member. The outlet device includes a rotatable member, a collar mounted to the rotatable member and a nozzle member connected to the r... | 05/19/2009 |
| 7516910 | Pressure washer trigger lock A pressure washer gun is connectable to a source of fluid. The pressure washer gun includes a housing that defines an interior and a flow path disposed substantially within the interior. The flow path includes an inlet in fluid communication with the source and an o... | 04/14/2009 |
| 7438240 | Hand-held sprayer for hose rollers A hand-held sprayer includes an at least partially hollow shaft section, a liquid dispensing section and a hollow connecting plug element for connecting a hose extension to the hand-held sprayer. The connecting plug element is arranged within shaft section and can b... | 10/21/2008 |
| 7434751 | Water spraying gun having different spraying types A water spraying gun includes a main body, a water supply member, a water outlet seat, a nozzle module, a control switch, and a rotation member. Thus, the water is injected outwardly from the water injection hole of the nozzle module or sprinkled outwardly from the ... | 10/14/2008 |
| 7434750 | Liquid dispensing pistol, in particular for gardening, provided with a dispensing position locking button A liquid spraying pistol for gardening including an external casing passed through by a channel within which a valve is slidingly housed which is biased by a spring and is operable by a start lever which is turnable between a closing position and a maximum opening p... | 10/14/2008 |
| 7431223 | Spray gun A spray gun for spraying paints and similar viscous media that can be propelled pneumatically, comprising a gun housing for accommodating components of the spray gun that effect propulsion, mixture and/or metering, a handle projecting from the gun housing, and a res... | 10/07/2008 |
| 7429029 | Sealing structure for a rotary valve of a squirt gun The present invention is a sealing structure for a rotary valve of a squirt gun. The rotary valve is placed into a housing of the squirt gun body between an inlet duct and an outlet duct. The rotary valve is provided with a through hole, and both ends of the rotary ... | 09/30/2008 |
| 7427039 | Siphon drying gun A siphon type of drying gun includes an arc diverter disposed between an inner end surface in an accommodation space in a body of the gun and a flared hole. A rear cover having a flange is screwed into the body. An exhaustion gap is defined between the flange of the... | 09/23/2008 |
| 7422164 | Spray gun with pressure display A spray gun with pressure display for applying paint onto a painted object by atomizing the paint with compressed air. A pressure indicating device includes a digitally displayed pressure sensor (25), a pressure transducer part (24), and a display part... | 09/09/2008 |
| 7410105 | Sprayer and filter therefor A sprayer, which in one embodiment, is a hand held ergonomic sprayer is disclosed herein. The sprayer may include: a housing through which water flows; a handle for gripping by a user, which is joined to the housing; at least one spray nozzle operatively connected t... | 08/12/2008 |
| 7404703 | Air pump with apparatus to hold nozzle An air pump has a cylinder, a shaft to be manipulative for inflation, a hose connected to the cylinder, a nozzle connected to an end of the hose and a handle pivoted on an end of the shaft. The handle is manipulative to be moved between an expanded position and a co... | 07/29/2008 |
| RE40433 | Nozzle arrangement for a paint spray gun A nozzle structure for a paint spray gun, is comprised of a central outlet for paint, an annular slot surrounding the central outlet, the annular slot being connected inside the nozzle structure via an annular duct to a number of virtually axially parallel bores, th... | 07/15/2008 |
| 7389949 | Pressure washer trigger lock A pressure washer wand is connectable to a source of fluid. The pressure washer wand includes a housing that defines an interior and a flow path disposed substantially within the interior. The flow path includes an inlet in fluid communication with the source and an... | 06/24/2008 |
| 7384004 | Pressure gauge A retrofittable pressure gauge for a spray gun includes a pressure sensor, located in a pressure chamber, a power source and a display unit, all enclosed within a case, a passageway providing fluid communication between the pressure chamber and a pressurised interio... | 06/10/2008 |
| 7377456 | Water flow control structure of a water gun The water flow control structure of a water gun includes a movable control tube, stepwise positioning unit, oblique guide and resilient component. When the control tube is moved by the control component, it is turned by the oblique guide and stepwise positioning uni... | 05/27/2008 |
| 7370814 | Sprinkler with sprinkling figures changeable with single hand A sprinkler with sprinkling figures changeable with single hand, including a main body, a sprinkling head and a driving unit. One end of the main body is formed with a water inlet, while the other end of the main body is formed with a water outlet. The sprinkling he... | 05/13/2008 |
| 7361214 | Disposable cartridge for air/gas dryer A disposable dryer cartridge for an air/gas dryer apparatus for installation in an air/gas line delivering compressed air or gas to an air/gas-driven tool. The cartridge includes a flexible elongated casing having a drying composition therein. The casing has an air/... | 04/22/2008 |
| 7354008 | Fluidic nozzle for trigger spray applications A fluidic nozzle, for use with a trigger spray applicator that issues a desired spray pattern of fluid droplets, and wherein the applicator has a liquid delivering orifice and an exterior surface proximate the orifice that is configured to receive a spray nozzle, in... | 04/08/2008 |
| 7350723 | Cordless, self-contained, handheld spray gun What is disclosed is a self contained, cordless, handheld spray gun (100). The spray gun (100) comprises a fluid container (225) in intercommunication with at least one fluid nozzle orifice (201) and a source of pressurized gas (204 | 04/01/2008 |
| 7341209 | Spray gun assembly structure A spray gun assembly structure comprises a connecting tube having a first coupling head connected to water supply and a second coupling head mounted to a spray gun. A coupling shaft of the second coupling head defined by at least two annular grooves is mounted into ... | 03/11/2008 |
| 7341504 | Adjustable sand blasting gun An adjustable sand blasting gun has a body, a sand inlet and an adjusting device. The body has a chamber, a blasting head, a mounting tube and a connecting pipe. The blasting head is attached to the body and communicates with the chamber. The mounting tube is formed... | 03/11/2008 |
| 7332013 | Compressed air/gas-driven tool with integrated dryness indicator An air/gas-driven tool with an integrated air/gas dryness indicator. The tool includes a housing that defines a cavity. An air/gas dryness detector is disposed in the cavity. An air/gas flow passage is situated to provide a stream of compressed air/gas to the drynes... | 02/19/2008 |
| 7328860 | Water sprayer having flow regulating function A water sprayer includes a handle having an inside formed with a water inlet channel and an end portion formed with a mounting seat which has a water conduit and a receiving chamber, a control shaft rotatably mounted in the receiving chamber of the handle and having... | 02/12/2008 |
| 7320437 | Device for dispensing liquid A liquid dispenser (100) primarily for use in dispensing liquid drench to animals. The dispenser (100) is electronic in operation and has the ability to control the speed of its pump (5) according to environmental conditions including the viscos... | 01/22/2008 |
| 7320725 | Disposable cartridge air/gas dryer A disposable cartridge air/gas dryer apparatus for installation in an air/gas line delivering compressed air or gas to an air/gas-driven tool. The dryer includes a pressure vessel having first and second ends, an inlet port, and an outlet port. A disposable dryer ca... | 01/22/2008 |
| 7311823 | Pool filter cleaning device A pool filter cleaning device (1) which allows a person to thoroughly clean a filter cartridge (15) quickly and easily with minimal amount of splash back. The pool filter cleaning device (1) is comprised of a handle (2), an angled head se... | 12/25/2007 |
| 7311271 | Spray gun having mechanism for internally swirling and breaking up a fluid The present technique provides a system and method for improving atomization in a spray coating device by internally mixing and breaking up a desired coating fluid prior to atomization. In one embodiment, a flow barrier is disposed in the spray coating device downst... | 12/25/2007 |
| 7296759 | Ratcheting retaining ring A retaining ring for a coating material dispenser including a nozzle for the discharge of coating material and a cap having a plurality of orifices arrayed in a spatial orientation with respect to the nozzle to supply a flow of gas or a mixture of gases to aid in di... | 11/20/2007 |
| 7296780 | Control valve assembly structure for spray guns A control valve assembly structure for spray guns comprises a pistol body made up of water inlet and outlet conduits in fluid communication with a valve chamber having a control valve assembly mounted therein wherein the water inlet and outlet conduits and the valve... | 11/20/2007 |
| 7281903 | Device for varying the pressure of the fluid delivered by a jet washer Device for varying the delivery pressure of a jet washer comprising a positive-displacement pump operated by a single-phase electric motor powered by alternating current and having a delivery nozzle of predetermined cross-section, and electronic means for controllin... | 10/16/2007 |
| 7281673 | Multi-pattern spray nozzle assembly with movable water conduit A multi-pattern spray nozzle assembly includes a movable internal water conduit that may be in the form of a rotary member. The movable water conduit is movable between a plurality of spray stations on a spray head, each spray station capable of generating a differe... | 10/16/2007 |