Famous Patents
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 |
| 7540468 | Angled poppet valve manual override mechanism An apparatus is provided for a valve assembly comprising a valve body, a valve element, a shaft, an engagement stop, an actuator housing, a manual lockout, and a lock. The valve body includes an inlet port, an outlet port, and a flow passage extending therebetween. ... | 06/02/2009 |
| 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 |
| 7100888 | Interlocking control handle An interlocking control valve which can be used to control the flow of fluids such as water and gas. The control valve features a push button on the end of a handle which permits the interlocking valve to engage the valve stem when the push button is pressed. A fixe... | 09/05/2006 |
| 6997148 | Engine valve actuator An engine valve actuator for an internal combustion engine is provided. The actuator includes a housing having an opening. An adjustment member is disposed in the housing and defines a fluid chamber having a chamber wall. A piston is also disposed in the opening. Th... | 02/14/2006 |
| 6962319 | Safety switch for a water dispenser A safety switch for a water dispenser includes a sealing ring movably received in the channel to alternatively block communication between the inlet and the outlet, a guiding rod securely received in the sealing ring and having a first spring compressibly mounted ar... | 11/08/2005 |
| 6669165 | Solenoid valve assembly A solenoid valve assembly for a vehicle includes a barrel and a solenoid disposed in the barrel for connection to a source of power. The solenoid valve assembly also includes a movable plunger disposed in the barrel and cooperating with the solenoid and a... | 12/30/2003 |
| 6666178 | Valve deactivation with an electro-hydraulic actuator An electro-hydraulic actuator assembly having a plurality of hydraulic pressure operated pistons controlled by a single solenoid operated shut-off and vent valve. Eaton hydraulic piston has an exteriorly extending arm attached thereto for contacting a rel... | 12/23/2003 |
| 6220274 | Air valve connection head of inflation device with air storage bottle An air valve connection head is designed to work with an inflation device comprising an air storage bottle in which the compressed air is kept. The air valve connection head comprises a housing which is provided with a receiving compartment, an elastic an... | 04/24/2001 |
| 6105930 | Fluid controller with pivoting valve stem operator A fluid controller comprises a pivotal member pivotally movable about the axis of a horizontal pin, a pair of rollable rollers rotatably supported by the lower end of the pivotal member and having an axis in parallel to the axis of the horizontal pin, a s... | 08/22/2000 |
| 5470044 | Safety faucet A safety faucet including a handle having an opening, a safety sliding block received in the opening on the handle, a casing, and a valve device mounted within the casing, the valve device including a cap fastened to the casing, a valve stem having one co... | 11/28/1995 |
| 5285997 | Device for locking a lever for pivoting a valve A device for locking a lever for pivoting a valve contained in a valve housing. A recess is formed in the valve housing. An annular groove is formed in the recess. A spring is sited in the recess. A latch has a relatively large middle section connecting a... | 02/15/1994 |
| 5284178 | Butterfly valve An improved butterfly valve for intercepting a conduit where substances flow, especially suitable for the pharmaceutical, alimentary and chemical fields The valve comprises an annular body (1) integral with the conduit and acting as a support for the rota... | 02/08/1994 |
| 5039062 | Tamper proof valve A tamper-proof valve which includes a valve body fitted with a transverse bore, an entry port and outlet port communicating with the transverse bore and an inner body seat for receiving a tapered inner body having a notch adapted for manipulation in align... | 08/13/1991 |
| 4946130 | Flow control device A flow control device for use in a fluid or gas line is disclosed. In one example, the device controls the flow of air to the brakes of a large vehicle such as a semi-trailer truck. The device includes a housing having an inlet port and an outlet port bot... | 08/07/1990 |
| 4890506 | Locking hand lever for operating a valve or the like A hand lever in particular for actuating a butterfly valve or the like in pipelines includes an outer lever portion which encases an inner lever portion and is movable in longitudinal direction thereof relative to the latter. At its forward end, the inner... | 01/02/1990 |
| 4830603 | Child-resistant disposable lighter A child-resistant disposable lighter has its pushbutton normally locked and requires the user to move a safety release bidirectionally in order to unlock the pushbutton for operation in the conventional way. The lighter's housing includes a second compart... | 05/16/1989 |
