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Patent No. 5996568

Process For Propelling Foodstuffs or the Like into a Crowd

A method of launching foodstuffs into a crowd for promotional and entertainment purposes.

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Class 417/115 - Valve member actuated responsive to absolute gaseous motive fluid pressure or flow rate


Subclass of Class 417 - Pumps
Definition: Apparatus wherein said valve means is actuated in response
No. of patents: 8
Last issue date: 04/04/2006


NumberTitleIssue Date
7021386Safety valve having extension spring closure mechanism
A safety valve having an extension spring closure mechanism. In a described embodiment, a valve for use in a subterranean well is provided which includes a biasing device and a closure member having open and closed positions. The biasing device has a length which de...
04/04/2006
5427133Coiled tubing wireline retrievable and selective set gas lift assembly
A gas lift assembly and gas lift valve positioned in coiled tubing in which the coiled tubing housing and gas lift valve are flexible for allowing the coiled tubing to be spooled. The gas lift valve is wireline retrievable for allowing gas lift valves to ...
06/27/1995
5217067Apparatus for increasing flow in oil and other wells
An injection valve for use in a well, for example, an oil well, enables gas to be injected to cause the oil or other fluid to be lifted to the surface. The valve has a valve body having an inlet at one end and an outlet at the other end, which are adapted...
06/08/1993
4592380Gas lift valve
A gas lift valve having a bellows protecting valve and seat in which one of the bellows protecting valve and seat is constructed of polyimide material and a sleeve of polyimide material internal of the bellows protecting the bellows against distortion and...
06/03/1986
4512155Flowing geothermal wells and heat recovery systems
An apparatus and method for stimulating a flow from a geothermal well. A primary or stimulating fluid flows into the space between the inner and outer casings of the well. The primary fluid enters the inner casing through a series of valves at various ele...
04/23/1985
4489743Differential gas lift valve
A gas lift valve device of the differentially operated type, having a straight, non-tortuous flow passage therethrough, with a hollow valve stem providing a portion of such passage, said device having a floating seat which automatically moves to valve eng...
12/25/1984
4295796Gas lift apparatus
The invention comprises gas lift apparatus including a generally tubular mandrel defining a main longitudinal bore therethrough and including pocket walls defining a longitudinally extending pocket laterally offset from the main bore and generally divided...
10/20/1981
4111608Gas lift system
A casing pressured operated, variable orifice valve is employed as the operating valve in a single point injection well assembly with tubing pressure (fluid) operated unloading valves acting above the operating valve to provide a continuous flow system. T...
09/05/1978
 
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