Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7267139 | Valve device The invention relates to a valve device comprising a valve housing (2) with a first and a second flow channel (3a, 3b), and a first and second damper shaft (8a, 8b), which are rotatable relative to the v... | 09/11/2007 |
| 7032877 | Actuator for reversibly displacing a valve flap of a valve An actuator has a drive shaft connected to a valve flap. A toothed quadrant is mounted to be rotatable about the first axis of rotation of the drive shaft. A further quadrant is arranged in parallel with the toothed quadrant and is fixedly connected to the drive sha... | 04/25/2006 |
| 6994318 | Faucet spout attachment The faucet spout attachment includes a handle that is moved by a user during use from a rest position into a rear position or forward position from which the handle is spring-biased back to the rest position when released. A cam is actuated by the handle that allows... | 02/07/2006 |
| 6935367 | Flotation cell fluid level control apparatus A fluid level control apparatus for selectively controlling the movement of liquid flowing out of a flotation cell is described. The fluid level control apparatus is significantly reduced in size in comparison with the flotation cell or cells to which it is connecte... | 08/30/2005 |
| 6722624 | Tap A tap for a urine drainage system, having a body, a lever and a barrel with a through bore which is mounted in the body for rotation between a position for through flow of liquid and a position which obturates fluid flow. The lever is mounted directly on the body fo... | 04/20/2004 |
| 6648296 | Hand-operated valve with locking mechanism A hand-operated valve with a locking mechanism is disclosed. This valve includes: a valve main body including a valve body, a valve seat, and a screw mechanism which is actuated to bring the valve body into contact/noncontact with the valve seat; a lockin... | 11/18/2003 |
| 6568653 | Butterfly valve actuation system for ported kiln A method and apparatus for supplying air to a ported rotary kiln involves the use of butterfly valves and a mechanical valve actuation system for introducing air into the kiln at axially and circumferentially spaced locations along the kiln length. The va... | 05/27/2003 |
| 5771916 | Automatic shut-off for a conduit fluid containment system This invention relates to a conduit that is at least partially encased within a containment housing. The containment housing provides structure for containment of fluids from a leaking or totally failed conduit and for automatically shutting off the flow ... | 06/30/1998 |
| 5725104 | Valve construction for high density pulp cleaner An improved dump valve construction for a high density cellulosic pulp cleaner. The cleaner comprises an upper separating chamber and a lower reject chamber which communicates with the lower end of the separating chamber. Cellulosic pulp is pumped tangent... | 03/10/1998 |
| 5667193 | Safety shut-off device for gas welding apparatus A safety shut-off device is disclosed. The device is adapted for use with a gas welding apparatus, the apparatus having a torch handle and a supply of a pressurized combustion reagent. The safety shut-off device has a valving assembly that is adapted to b... | 09/16/1997 |
| 5601114 | Fuel tank valve assembly A valve assembly is provided for use in conjunction with a fuel tank having a fill neck and a vent conduit. The fill neck defines a passageway having one end open to the fuel tank and the second end adapted to receive fuel. Similarly, the vent conduit als... | 02/11/1997 |
| 5496010 | Closure means A urine drainage tap is provided which includes an elongated passage having a barrel disposed therein and a control member located in the barrel which is moveable in relation to the barrel for defining an open and closed position. The lever arm is connect... | 03/05/1996 |
| 5482085 | Pilot pressure sub-assembly for fluid control valve A fluid control valve includes a spring biased pilot pressure sub-assembly for adjustably setting an initial step pressure. The sub-assembly includes a spring seat and an axially movable spool. The spool includes a body portion having a threaded outer sur... | 01/09/1996 |
| 5076539 | Tank car botton valve A bottom outlet valve for a tank on a vehicle, especially for a railway tank car. The valve comprises a valve body including a valve seat, a valve stem spring biased toward the closed position against the seat and an operator assembly for mechanically ope... | 12/31/1991 |
| 5069249 | Sanitary fitting A sanitary fitting contains a closing component (9) which can be moved to vary the quantity of water flowing. A movement brake (23, 24) is provided to prevent excessively fast closing speeds. A spring component (35) is provided in the transmission path (1... | 12/03/1991 |
| 5024416 | Valve actuator The problem of providing a very compact and simple actuator system (10) for a rotary valve (40) operated by a rotatable shaft (44) and effecting a specific valve program to select a desired flow rate through the valve (40) is provided by an actuator membe... | 06/18/1991 |
| 4911402 | Material handling valve A material handling valve includes a housing having a vertical passageway therethrough and a seating surface extending around the lower end of the passageway. A support arm within the passageway has one end supported on the housing for pivotal movement ab... | 03/27/1990 |
| 4875449 | Arrangement for prevention of troublesome load change shocks in an internal combustion engine serving to propel a vehicle In order to prevent troublesome load change shocks in an internal combustion engine for a vehicle, the power control element thereof consists of an adjustment lever operationally positioned between two spring stops. The first spring stop provides elastic ... | 10/24/1989 |
| 4852852 | Hydraulic valve actuating device A 2-port, 2-directional hydraulic valve is disposed alongside a pulse generator in a casing, the actuating force of the pulse generator being transmitted to a push rod of the valve for actuating the latter via a two-armed lever mounted like the beam of a ... | 08/01/1989 |
| 4721281 | Actuating device for throttle valve An actuating device is proposed which is used to adjust a throttle valve disposed in the intake tube of an internal combustion engine. The actuating device includes a gas pedal adapted to engage an actuating lever, which is supported rotatably relative to... | 01/26/1988 |
| 4671484 | Gas valve A gas valve having a cantilevered bi-metal arm subject to electrically energized heating regulates fluid flow between a fluid inlet and fluid outlet. A poppet is preloaded for seating with a valve seat and further includes a disc member to inhibit valve t... | 06/09/1987 |
| 4598895 | Plug valve with hydraulically actuated seals A valve having a body with an inlet duct, an outlet duct and a plug rotatably disposed in the body. The plug has a port to provide for fluid communication between the inlet and outlet ducts and is movable between an open position wherein the port at least... | 07/08/1986 |
| 4508314 | Gas valve A gas valve of the type having a movable resilient poppet attached to the free end of an electrically heated cantilever bi-metal arm. The poppet is preloaded by the arm to the closed position against a valve seat by the bi-metal arm and is lifted by warpi... | 04/02/1985 |
| 4497467 | Plug valve with hydraulically actuated seals A rotary plug valve has hydraulically actuated seals for sealing between a valve body and a rotatable valve plug. The valve plug is rotated to open or close the valve. A valve handle for turning the plug can be rotatably uncoupled from the valve plug when... | 02/05/1985 |
| 4334648 | Airflow limiter and measurement device An air conditioning system including an air flow limiter and indicator comprising, in combination: a chamber (24) extending from an inlet (21) to an outlet (22) for flow therebetween of conditioned air at greater than ambient pressure; a damper (63) in th... | 06/15/1982 |
| 4312373 | Internal valve An internal valve for the bottom loading of fuel tanks consists of a differential area piston acting within a chamber which is vented by a pair of pilot valves responsive to fluid level, to provide full open, throttled and closed positions of the valve au... | 01/26/1982 |
| 4255985 | Bale-accumulating trailer A three-bale load is accumulated on the trailer as bales issue from the rear of the baler, whereupon the accumulated bales may be dumped all at the same location or singly as may be desired. Successive bales issuing from the baler arrive at a central plat... | 03/17/1981 |
| 4226814 | Carburetor An automotive type carburetor has a rotatable lever connected to the choke valve and to an actuating link having a pin-slot type connection to an engine vacuum controlled servo, a fast idle cam is connected to the choke lever by a lost motion pin and slot... | 10/07/1980 |
| 4224959 | Clamp for liquid-dispensing valve A clamp usable in the mounting of a lever-actuated valve unit on a fitting, and in the operation of a lever on such unit when the unit is so mounted, where mounting is accomplishable through the rotation of a nut in the fitting relative to the valve unit,... | 09/30/1980 |
| 4182488 | Pressure regulator A pressure regulator has a diaphragm controlled valve and a temperature responsive means for adjusting the loading on the diaphragm to provide a pressure control from a maximum pressure to a minimum pressure in a modulating manner as the temperature chang... | 01/08/1980 |
| 4158367 | Valve system and improved actuator therefor A valve actuator, for example a mechanism for imparting motion to a blast furnace evacuation valve, includes a force generator which is coupled to the valve member by a displacement mechanism including a pivotal lever and a pivot arm. The pivotal lever ha... | 06/19/1979 |
| 4017221 | Combined unloading and relief valve for pump unloading circuit A hydraulic fluid circuit comprises an engine-driven pump for communicating pressurized fluid through a combined unloading and relief valve and to an implement control circuit of a construction vehicle. Actuating means are provided for selectively opening... | 04/12/1977 |
| 3944135 | Condition responsive valve construction and method of making the same A condition responsive valve construction having a housing provided with a valve seat. A pair of metallic balls are secured together in abutting relation and are movable toward and away from the valve seat so that one of the balls acts to open and close t... | 03/16/1976 |
| 3942757 | Valve actuating mechanism A spring biased poppet valve has the exposed end of its poppet plunger engaging the underside of a lever, and the poppet and lever are biased upwardly so that a tit on the upperside of the lever engages a cam surface defined on a cam member loosely mounte... | 03/09/1976 |
