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Class 417/535 - All discharge distributors positioned laterally of pumping member path


Subclass of Class 417 - Pumps
Definition: Apparatus in which there is provided inlet discharge valve
No. of patents: 9
Last issue date: 03/20/2007


NumberTitleIssue Date
7191473Sanitary washing apparatus
When a user sets water power using a water power adjustment switch in a remote control device, a controller controls the period of pressure fluctuations, the width of pressure fluctuations, and the central pressure of the discharge pressure of a pump on the basis of...
03/20/2007
7059500Apparatus for filling containers with viscous liquid food products
An apparatus for filling containers with viscous food product includes a plurality of pressure/vacuum fill head positioned above a plurality of containers. Each fill head includes a housing enclosing a plenum through which is longitudinally disposed a valve stem hav...
06/13/2006
6499968Integral pump and control valve
A pumping unit, particularly for water supply in remote areas of the world, comprising a pump, control valve and tipping bucket mechanism enclosed in a single housing. The pumping unit is double-acting and, does not demand the presence of a drive pipe. Th...
12/31/2002
6065940Diaphragm dosing pump
A diaphragm dosing pump has a dosing chamber, which has an inlet and a pressure-side outlet, as well as a dosing diaphragm operated by a stroke drive, and a delivery chamber upstream of the dosing chamber has a suction connection for the medium to be dose...
05/23/2000
5817955Apparatus for simultaneous aspiration and dispensation of fluids
The apparatus for simultaneous aspiration and dispensation of fluids is in the form of a syringe with two chambers located end to end along the length of the syringe. Each syringe chamber includes a port. A piston inside the syringe includes a median sect...
10/06/1998
5526962Double piston pump for administering medication
The device of the invention provides preselected doses of liquid medicine and has a cylinder assembly (1, 2) with a left cylinder (1), a right cylinder (2) and a double piston (4, 5) displaceably mounted in the assembly with a left piston end (4) and a ri...
06/18/1996
5076769Double acting pump
An improved double acting piston pump of the type having a shaft connected to the piston for reciprocating the piston wherein the shaft extends from the pump body. The improvement of the present invention is to reciprocate the shaft with an asymmetrical u...
12/31/1991
5051074Bi-directional reciprocating pump mechanism
A reciprocating pump mechanism having a pump body forming a fluid inlet chamber and opposed pump cavities in communication with the fluid inlet chamber. The pump employs a piston having opposed pumping extremities adapted for pumping entry into the respec...
09/24/1991
4960369Rotatably driven positive displacement pump
A rotatably driven positive displacement pump including a tubular conduit with a barrel communicating therewith, the barrel having a plurality of pairs of spaced apart fluid inlet and fluid outlet ports, each port being controlled by a unidirectional valv...
10/02/1990
 
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