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Class 417/297.5 - Liquid level responsive


Subclass of Class 417 - Pumps
Definition: Apparatus in which the means for modifying the normal operation
No. of patents: 7
Last issue date: 03/06/2007


NumberTitleIssue Date
7185603Automated egg injection machine and method
A pneumatically operated egg injection machine includes a sealed frame structure with a pair of in line parallel tracks through an injection section and a transfer section in series. An injection assembly over one parallel track includes a plurality of injectors gri...
03/06/2007
7096820Automated egg injection machine and high precision delivery therefor
A pneumatically operated egg injection machine includes a sealed frame structure with a pair of in line parallel tracks through an injection section and a transfer section in series. An injection assembly over one parallel track includes a plurality of injectors gri...
08/29/2006
6663350Self generating lift cryogenic pump for mobile LNG fuel supply system
A high pressure pump and delivery system mating to LNG storage and suited for natural gas powered trucks and buses, but also suitable for other cryogenic liquid fuels. The reciprocating pump is comprised of a liquid pumping portion and a vapor compressing...
12/16/2003
5318407Check valve having internal float
The present invention provides a check valve which, when placed at the end of a pump suction pipe, allows the pump to draw fluid therethrough from a continuously replenished, below-ground fluid source. When the fluid in the fluid source has been depleted ...
06/07/1994
5266011Oil distribution gear pumps with integrated air separators
An oil distribution gear pump with an integrate air pump. This pump comprises a main body being divided into an oil distribution chamber and an oil recirculation chamber, these chambers being adapted for distributing oil to the outside and recovering oil ...
11/30/1993
4754108Blow molded float switch assembly
A float switch assembly for selectively energizing and deenergizing a fluid pump or other electronic equipment responsive to the rise and fall of a fluid level within a reservoir and a method and manufacturing or assembling the float switch assembly. The ...
06/28/1988
4229146Air compressors
An air compressor assembly is provided having a high pressure air receiver, a compressor, an outlet port and an inlet port on said compressor, said inlet port having a normally closed spring loaded inlet valve, the improvement comprising a two position no...
10/21/1980
 
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