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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 8118061 | Variable flow rate controller A variable flow rate controller is provided herein. The controller may have a linearly traversable switch such that the controller is primed to flush air bubbles out of the fluid system of the controller prior to administering fluidic medication to a patient. Moreov... | 02/21/2012 |
| 7367358 | Medical fluid delivery system and method relating to the same A medical fluid delivery system for the use in the delivery of medical fluids. The medical fluid delivery system may include a pumping system, a disposable medical fluid line set and a valve operating system. The disposable tubing line set may include valves adapted... | 05/06/2008 |
| 7290563 | Pressure regulator A main valve reduces an unregulated pressure of a high-pressure gas to a regulated pressure by being interlocked with a diaphragm, which receives the regulated pressure within a pressure regulating chamber and is displaced. A subsidiary valve is interlocked with the... | 11/06/2007 |
| 6910880 | Ignition controller of barbecue grill An ignition controller has a pressure controller having a housing with a first inlet and a first outlet, an ignition adjustor having a housing with a second inlet and a second outlet and an adjusting assembly. The second outlet is connected to the second inlet and t... | 06/28/2005 |
| 6571829 | Gas control valve in water heater A gas control valve in a water heater is provided for improving the ease of assembling, minimizing the size and the cost, and decreasing the limitation of layout design. For example, in a flame-retention, storage type closed vessel gas water heater for au... | 06/03/2003 |
| 6405758 | Valve driving apparatus A valve driving apparatus includes a main body coupled with an inflow tube for introducing a fluid internally and a discharge tube for discharging the fluid. Valve members are movable within a predetermined range, for permitting the opening or the closing... | 06/18/2002 |
| 5368509 | Tilt lock system for outboard motor A hydraulic tilt lock mechanism for a marine outboard drive that resists popping up operation when the outboard drive is operated in reverse but permits the outboard drive to pop up when an underwater obstacle is struck with sufficient force when travelin... | 11/29/1994 |
| 4870990 | Double-flow butterfly valve part A double-flow butterfly valve part (1) contains two butterfly valves (4 and 6), which are connected together by means of a coupling element (10). The second butterfly valve (6) is opened only when the first butterfly valve (4) is moved beyond a partially ... | 10/03/1989 |
| 4836163 | Throttle-butterfly connector piece for an internal combustion engine In the throttle butterfly (2) of a throttle-butterfly connector piece of an internal combustion engine there is provided an expansion member (5) which has two arcuate pieces (6,7) which extend out of the circumferential surface of the throttle butterfly (... | 06/06/1989 |
| 4830039 | Fuel control valve construction, parts therefor, and methods of making the same A fuel control valve construction, parts therefor and methods of making the same are provided, the construction comprising a housing having an inlet adapted to be interconnected to a fuel source and an outlet adapted to be interconnected to a main burner,... | 05/16/1989 |
| 4739798 | Multiple control valve for mixing fluids A mixing valve particularly suited for use as a water faucet includes separate levers for selectively delivering an unmixed flow of cold water, an unmixed flow of hot water, and one or more mixed flows of intermediate temperature water. An intermediate te... | 04/26/1988 |
| 4570663 | Distribution valve with dual cams to prevent uncontrolled excursions of valve balls A distribution valve includes a housing having an upper fluid inlet, a plurality of bottom fluid outlets and enclosing a rotary impeller disposed directly beneath the fluid inlet, and a plurality of stationary baffles disposed between a bottom plate of th... | 02/18/1986 |
| 4566628 | Method of and system for controlling the ratio between the water flow rate in the primary circuit and the water flow rate in the secondary circuit of a hot water heating system A method of controlling the ratio between the water flow rates in the primary and secondary circuits of hot water heating systems, particularly of low-temperature hot water heating systems, by mixing flow water with return water passing through an adjusta... | 01/28/1986 |
| 4523606 | Distribution valve A distribution valve includes a housing having an upper fluid inlet, a plurality of bottom fluid outlets, and enclosing a plurality of bottom fluid outlets, and enclosing a rotary impeller disposed directly beneath the fluid inlet, a plurality of stationa... | 06/18/1985 |
| 4306623 | Valve assembly for a subterranean well conduit A valve assembly is provided having particular utility in a test assembly securable in a blowout preventer stack above a subterranean well. The valve assembly is carriable between upper and lower portions of a tubular conduit extendible to at least one pr... | 12/22/1981 |
| 4220175 | Anti-scald apparatus for a tub and shower single control faucet An anti-scald apparatus for a tub and shower single control faucet which incorporates a novel cam and cam follower arrangement on the hot and cold water valve means which permits substantially more than 180 degrees of rotation of the control handle. Adjus... | 09/02/1980 |
| 4191214 | Sequential operating mechanism for valves Disclosed is a sequential operating mechanism for valves for applications requiring actuation of one valve, or set of valves, prior to actuation of another valve, or set of valves. The equipment preferably includes an actuator driver mounted for powered s... | 03/04/1980 |
| 4159105 | Shock absorber with adjustable spring load A device for modifying a shock absorber so that the preload of the shock absorber spring may be adjusted. The device has a chamber member having a cylindrical inner member with an inside diameter slightly larger than the outside diameter of the shock abso... | 06/26/1979 |
| 4121736 | Hand held atomizer washing device A hand held atomizer washing device comprises a housing having a large reservoir for containing water and a small flexible walled reservoir mounted inside the larger reservoir for containing a liquid detergent, a hand pump incorporated in the handle of th... | 10/24/1978 |
| 4082115 | Valve operator A valve operator for steam turbine inlet control valves, each of the control valves being set by a corresponding valve cam. The operator comprises pilot operated hydraulic means for positioning the valve cams in a normal or power mode of operation, mechan... | 04/04/1978 |
| 3983901 | Hydrostatic control - pivot steering A pivot steering vehicle having a pair of hydrostatically operated driving wheels; and motors for driving those wheels which are driven by variable speed, reversible pumps; a control system is provided, having valve means for controlling the pressure appl... | 10/05/1976 |
