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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 137/518 - Oppositely swinging vanes


Subclass of Class 137 - Fluid handling
Definition: Valves comprising a pair of edge-pivoted vanes biased in
No. of patents: 7
Last issue date: 09/27/2011


NumberTitleIssue Date
8025077Mechanical fuse to seal pipes upon unintended rupture
The present invention relates to a mechanical fuse to seal pipes upon unintended rupture. When a pressure difference between a first pressure and a second pressure in a pipe is below a pressure threshold, a first spring retains a flap in a first position allowing ga...
09/27/2011
7114519Normally open reverse flow flapper valve
A fluid flow actuated valve for controlling the fluid flow in a conduit comprises a support structure adapted to be mounted within the conduit and at least one flap member pivotally mounted to the support structure. The at least one flap member is pivotable between ...
10/03/2006
6615864Torsion spring pool cleaner reed valve
A pool cleaner reed valve for a pulsating submersible swimming pool cleaner which has a valve body (22) configured to fit into a pulsating valve enclosure. The body includes a rectangular inlet end (24) and an round outlet end (26) with a pair of fulcrum ...
09/09/2003
5992451Reed valve for pool cleaner
An improved valve for a pulsating submergible pool cleaner having a valve body (20) with an integral relief valve (32). The valve is dual acting and utilizes a pair of opposed laminated valve plates (50) with an outward bend (52) on one end and a right an...
11/30/1999
5592966Back-flow preventer
The present invention is directed to a multi-cuspid back-flow preventer in the nature of a check valve that has a generally annular body portion with axially spaced upstream and downstream ends. A substantially cylindrical passageway extends through the b...
01/14/1997
4222408Check valve
A check valve having a body with a passage therethrough, a pair of vanes pivotally mounted within said passage so that they open and close flow therethrough responsive to flow in one direction, said vanes having an arcuate shape to create a smooth venturi...
09/16/1980
4091835Autokinetic sampling nozzle
A sampling nozzle is disclosed which includes an inlet valve that automatlly adjusts the opening thereof in predetermined inverse porportions to the pressures applied thereto by the fluid and/or other substances being sampled thereby. Whenever a constant...
05/30/1978
 
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