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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 |
| 7401761 | Compressed gas cylinder safety device An improved apparatus and method for preventing accidental disconnection of a valve fitting from a compressed gas cylinder (tank) is provided. A valve safety device preferably includes a valve stem having a first threaded section. The first threaded section is prefe... | 07/22/2008 |
| D571415 | Bolt for a paintball gun | 06/17/2008 |
| D554204 | Paintball gun chamber body | 10/30/2007 |
| D548201 | Ion solenoid circuit board | 08/07/2007 |
| D546297 | Ion eye circuit board | 07/10/2007 |
| 7237544 | Pneumatic paintball gun and components An electro-pneumatic paintball gun preferably comprises a bolt assembly and a firing valve assembly that can be readily removed from the paintball gun. A bolt assembly preferably comprises a bolt sleeve. The bolt assembly is preferably removed by turning the bolt sl... | 07/03/2007 |
| D535709 | Paintball gun chamber body | 01/23/2007 |
| D533908 | Paintball gun pneumatic assembly | 12/19/2006 |
| 7121272 | Paintball gun having an in-line pneumatic assembly A paintball gun preferably includes a compressed gas storage chamber, a bolt, and a firing valve all arranged in a longitudinal chamber of the paintball gun. The bolt preferably includes a first and a second surface area. One of the two bolt surface areas is prefera... | 10/17/2006 |
| 7100593 | Pneumatically operated projectile launching device A pneumatically operated projectile launching device preferably comprises an electro-pneumatic flow distribution mechanism that receives and directs compressed gas to a pneumatic mechanism to open a bolt. ... | 09/05/2006 |
| 7044119 | Pneumatic assembly for a paintball gun A pneumatic assembly for a paintball gun preferably includes a bolt slidable between an open and a closed position. The bolt preferably provides a firing mechanism for the paintball gun by permitting compressed gas to flow through the bolt to fire the paintball gun ... | 05/16/2006 |
| 6823857 | Barrel assembly with removable barrel insert for pneumatic paintball gun A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barrel insert ha... | 11/30/2004 |
| 6694963 | Touch trigger for electronic paintball gun A paintball gun includes a touch-activated trigger system. The touch-activated trigger system preferably can cause the initiation of a firing operation of the paintball gun in response to contact with human flesh or a specialized glove.... | 02/24/2004 |
| 6494195 | Barrel assembly with removable barrel insert for pneumatic paintball gun A barrel assembly for a pneumatic paintball gun includes a barrel body and a barrel insert. The barrel body has a breech end, a muzzle end, and a barrel bore extending longitudinally through the barrel body from the breech end to the muzzle end. The barre... | 12/17/2002 |
| 6349711 | Low pressure electrically operated pneumatic paintball gun A paintball gun according to this invention comprises a pressure regulator, an electronic solenoid valve, a firing valve assembly, a pneumatic ram assembly, and a firing chamber. The pressure regulator is configured to provide low pressure gas to a soleno... | 02/26/2002 |
| 6260821 | On/off valve for a paintball gun An on/off valve for a paintball gun comprises a valve body. The valve body includes a gas inlet to receive a gas from a compressed gas source and a gas outlet to transmit the gas to the paintball gun The valve body also contains a plug cavity for receivin... | 07/17/2001 |
| 6035843 | Pneumatically operated projectile launching device The pneumatically operated projectile launching device is preferably comprised of three principal elements: a body which houses and interconnects all of the pneumatic components and also houses the electrical power source, a grip mounted to the body which... | 03/14/2000 |
| 5881707 | Pneumatically operated projectile launching device The pneumatically operated projectile launching device is preferably comprised of three principal elements: a body which houses and interconnects all of the pneumatic components and also houses the electrical power source, a grip mounted to the body which... | 03/16/1999 |
| 5755213 | Pneumatic valve and regulator A pneumatic valve and regulator, and more particularly to a pneumatic valve and regulator used in a compressed gas powered gun system which is designed to project a fragile liquid-containing spherical unit which bursts upon impact with the intended target... | 05/26/1998 |
| 5228427 | Improved barrel for paintball gun An improved barrel for guns which do not have standard internal rifling is disclosed. The barrel has a plurality of apertures which extend a first longitudinal distance along the barrel from the muzzle end toward the breech end. The apertures may define a... | 07/20/1993 |
| 5226687 | Material handling system including a hanger and a come-along attachment device Apparatus and system including a hanger device which is releasably clampable to a rod. The hanger device includes a pair of blocks each having a plurality of differently configured bore sections therein adapted for cooperating with a plurality of differen... | 07/13/1993 |
