Resources Contact Us Home
Browse by Category: Main > Engineering
Class Information
Number: 137/148
Name: Fluid handling > Siphons > With flow starting, stopping or maintaining means > Pump or liquid displacement device for flow passage > Piston
Description: Apparatus in which the pump includes a piston.

Sub-classes under this class:

Class Number Class Name Patents
137/149 Co-axial within flow passage 6

Patents under this class:

Patent Number Title Of Patent Date Issued
8524154 System and method for pseudo-continuous measurement of metabolite concentrations in a mammalian body Sep. 3, 2013
6883535 Liquid handling apparatus Apr. 26, 2005
6256801 Siphon assemblies Jul. 10, 2001
6161568 Water supply pipe protector Dec. 19, 2000
6112759 Oil drawing and dispensing device Sep. 5, 2000
5620309 Fluid pump priming system Apr. 15, 1997
5433246 Pressure coupling for cleaning water lines Jul. 18, 1995
4649953 Siphon assembly for flushing cisterns Mar. 17, 1987
4232694 Siphon Nov. 11, 1980
4112963 Siphon tube starter Sep. 12, 1978
4041971 Siphon starting device Aug. 16, 1977

  Recently Added Patents
Method and system for providing status of a machine
Plants and seeds of corn variety CV092363
Aromatic amine derivative, organic electroluminescent element employing the same, and process for producing aromatic amine derivative
Lid for a container
Methods for testing OData services
Hand-held optical probe based imaging system with 3D tracking facilities
  Randomly Featured Patents
Hand-held vibratory massager
Compensating for coupling during programming
Friction pad assemblies for disc brakes
A-82846-type glycopeptide antibiotics
Method and apparatus for inspecting objects using multiple images having varying optical properties
Coupler structure
Voltage control in pulsed system by predict-ahead control
Class II/class III hybrid gaming machine, system and methods
Method for continuously manufacturing products of thermoplastic material and equipment for carrying out said method
Dual-mode AFC circuit for an SSB radio transceiver