Abstract

A valve is provided for use with liquid chromatography where liquid is provided to the chromatographic analysis equipment at more than one pressure, including up to ultra-high pressures. High and higher pressure operation are provided by application of force by an internal spring while avoiding wear of components by permitting higher pressure operation by mechanical engagement of an internal element to cause the internal spring to increase the force applied to the rotor, without the addition of external additional loading in the high pressure operation.

IPC Classes  ?

• G01N 30/20 - Injection using a sampling valve
• F16K 31/524 - Mechanical actuating means with crank, eccentric, or cam with a cam
• G01N 30/22 - Injection in high pressure liquid systems
• F16K 11/074 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with pivoted closure members with flat sealing faces
• F16K 3/10 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor with pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
• G01N 30/16 - Injection

Abstract

A valve is provided for use with liquid chromatography where liquid is provided to the chromatographic analysis equipment at more than one pressure, including up to ultra-high pressures. High and higher pressure operation are provided by application of force by an internal spring while avoiding wear of components by permitting higher pressure operation by mechanical engagement of an internal element to cause the internal spring to increase the force applied to the rotor, without the addition of external additional loading in the high pressure operation.

IPC Classes  ?

• F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
• F16K 3/00 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
• F16K 11/00 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid
• G01N 30/02 - Column chromatography
• G01N 30/00 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography

Abstract

Systems for use with liquid chromatography for provision of continuous flow or gradient flow in connection with two pumps providing mobile phase to a valve.

IPC Classes  ?

• G01N 30/20 - Injection using a sampling valve
• G01N 30/32 - Control of physical parameters of the fluid carrier of pressure or speed
• G01N 30/36 - Control of physical parameters of the fluid carrier in high pressure liquid systems

Abstract

The present disclosure provides a high pressure capillary tubing connector system for use with a zero dead volume fitting which includes a main body, a primary seal, inert tubing, a ferrule, and a retaining member, where the zero dead volume fitting has a zero dead volume fitting detail having a zero dead volume fitting detail pilot which terminates at a zero dead volume detail pilot bottom and which has a zero dead volume fitting detail pilot length and having a zero dead volume fitting detail ferrule seat.

IPC Classes  ?

• G01N 30/60 - Construction of the column
• F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints
• F16L 19/02 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
• F16L 19/06 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
• F16L 19/065 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
• G01N 30/36 - Control of physical parameters of the fluid carrier in high pressure liquid systems

Abstract

A pump for high-pressure and/or nano-scale volumes permits identification of the internal pressure of the pump.

IPC Classes  ?

• F04B 19/22 - Other positive-displacement pumps of reciprocating-piston type
• B01D 15/16 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the conditioning of the fluid carrier
• G01N 30/36 - Control of physical parameters of the fluid carrier in high pressure liquid systems

Abstract

A pump for high-pressure and/or nano-scale volumes permits identification of the internal pressure of the pump.

IPC Classes  ?

• G01N 30/02 - Column chromatography
• B01D 15/14 - Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the introduction of the feed to the apparatus

Abstract

Systems for use with liquid chromatography for provision of continuous flow or gradient flow in connection with two pumps providing mobile phase to a valve.

IPC Classes  ?

• F16K 11/074 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only sliding valves with pivoted closure members with flat sealing faces
• G01N 30/20 - Injection using a sampling valve
• G01N 30/22 - Injection in high pressure liquid systems
• G01N 30/32 - Control of physical parameters of the fluid carrier of pressure or speed
• G01N 30/36 - Control of physical parameters of the fluid carrier in high pressure liquid systems
• G01N 30/38 - Flow patterns

Abstract

A temperature controller for simultaneously controlling the temperatures of a plurality of heating elements for use in chromatographic analysis including columns, detectors, valves, transport lines and other components.

IPC Classes  ?

• G01N 30/30 - Control of physical parameters of the fluid carrier of temperature
• B01D 15/08 - Selective adsorption, e.g. chromatography
• G01N 30/54 - Temperature
• H05B 1/02 - Automatic switching arrangements specially adapted to heating apparatus

Abstract

The disclosure pertains to a tubing and ferrule assembly for use in joining a clad tubing to a fitting. The ferrule is bound to the clad tubing, which includes a partial jacket of stainless steel, such, that the inert core protrudes from, and has a common outer diameter with, the jacket. The ferrule is bound to the jacket slightly more distant than necessary for the inert core to contact a String. When the ferrule is retained in place, the inert core is compressed and provides a true zero dead volume connection between the clad tubing and the fitting. The relationship of the ferrule, the clad tubing, and the fitting limits the position of the clad tubing and therefore precludes damaging of the associated valve or component.

IPC Classes  ?

• G01N 30/16 - Injection
• B01L 3/00 - Containers or dishes for laboratory use, e.g. laboratory glasswareDroppers
• F16L 19/02 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
• F16L 19/065 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
• G01N 30/00 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
• G01N 30/60 - Construction of the column

Goods & Services

Chromatography apparatus for laboratory use Chromatography apparatus for industrial purposes

Goods & Services

laboratory equipment specially adapted for use with chromatographic apparatus for laboratory use, namely, nuts, ferrules, fittings being tubing connectors, and zero dead volume fittings being tubing connectors fittings and accessories specially adapted for use with chromatography apparatus for industrial purposes, namely, nuts, ferrules, fittings being tubing connectors, and zero dead volume fittings being tubing connectors

Abstract

A heated rotary valve for use in connection with a sample to be separated in a column for heating the sample to temperature within the valve. The heated rotary valve permits introduction of compounds, having a wide boiling range, into a gas chromatograph with improved precision of area and retention time. The valve includes a stator, an elongate body, a rotor seal, a drive shaft, and an internal element for generating heat. The rotor seal may be laterally captured by a ring to prevent movement or creep due to heat absorption during operation.

IPC Classes  ?

• G01N 30/20 - Injection using a sampling valve

Abstract

A combined pump-injector valve utilizing a single piece as the barrel of the pump and as the stator of the valve, thus eliminating any need for connections between a pump and a valve, and therefore the potential for high-pressure leaks or pressure reductions. The combined pump-injector valve permits injection of nano liter-sized samples into a chromatographic column, which is sealed during loading of the sample and filling of the pump, such that complete analyses can be completed with microliters of mobile phase with nanoliters of a sample.

IPC Classes  ?

• G01N 1/10 - Devices for withdrawing samples in the liquid or fluent state

Abstract

A detector for gas chromatography using two ionization sources within a single body to separately provide ionization energy to a column gas eluent to provide electrical discharge to two or more collecting electrodes provides improved selectivity and may be so used. Use is made of combined bias/collecting electrodes. The use of two ionization sources permits generation of two detector outputs from within a common body and of a common constituent flow. The ionization sources and any applicable discharge gas and dopant may be selected based on desired selectivity.

IPC Classes  ?

• G01N 27/64 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber

Abstract

A pulsed discharge helium ionization detector for gas chromatography with multiple combined bias/collecting electrodes.

IPC Classes  ?

• G01N 27/62 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosolsInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electric discharges, e.g. emission of cathode

Goods & Services

Laboratory equipment for chromatography analysis, namely, chromatography injectors, switching valves, fill ports, chromatography frits, liners, and column end fittings; laboratory equipment specially adapted for chromatographic analysis, namely, nuts, ferrules, plugs, unions, reducing unions, t-connectors, y-connectors, and cross-connectors

Goods & Services

Chromatography columns

Goods & Services

Liquid chromatography equipment, namely non-metal fittings, tubing, filters, frits, capillaries, column hardware

Goods & Services

Manually-operated metal valves for use in connection with material analysis, including material control, measurement and sampling Automatic valves for use in connection with material analysis, including material control, measurement and sampling, electric valve actuators for use in connection with material analysis, including material control, measurement and sampling, electronic valves for controlling gas or fluids for use in connection with material analysis, including material control, measurement and sampling, laboratory equipment and supplies namely, tubing connectors

Goods & Services

Metal valves, manually-operated metal valves, [ and metal tube and pipe fittings, ] all for conducting chemicals and gases in chemical test equipment

Goods & Services

(1) Tube and pipe fittings used for conducting chemicals and gases. (2) Liquid chromatography accessories, namely, metering pumps, pressure gauges, valves, columns, tubing, tube end fittings, couplings, adapters, connectors, manifolds, and parts therefor. (3) Laboratory equipment, namely, coil manager/reaction coil, mobile phase/solvent reservoir, mobile phase filter, inline filter, in line mini-columns and connectors to be used with syringes as couplings to needles.

Goods & Services

laboratory equipment, namely, high pressure syringes, components thereof and accessories for such syringes, namely, adapters and fittings, all used for sampling or measuring fluids and gases

Goods & Services

laboratory equipment, namely, metal-encased micro syringes used for sampling and measuring hard-to-handle volatile liquids and liquefied gases

Goods & Services

Laboratory equipment, namely, micro syringes, fluid collection syringes, and parts therefor, all for use in the sampling, measuring or transportation of fluids

Goods & Services

electrical and scientific apparatus, namely, laboratory equipment, namely, fluid sampling injectors, valves and fittings all used to control fluid flow in scientific measuring instruments

Goods & Services

laboratory equipment, namely, [ coil manager/reaction coil, mobile phase/solvent reservoir, ] mobile phase filter, inline filter, [ in line mini-columns ] and connectors to be used with syringes as couplings to the needles

Goods & Services

calibrated flow controllers, control valves, pressure regulators and metering valves

Goods & Services

LIQUID CHROMATOGRAPHY ACCESSORIES, NAMELY, METERING PUMPS, [ PRESSURE GAUGES, ] VALVES, [ COLUMNS, ] TUBING, TUBE END FITTINGS, COUPLINGS, ADAPTERS, CONNECTORS, MANIFOLDS, AND PARTS FOR ALL OF THE AFORESAID GOODS

Goods & Services

ANALYTICAL TESTING OR PROCESSING INSTRUMENTS COMPRISING DIGITAL VALVE INTERFACES, CONTROL MODULES, [ SELECTION MODULES, ] POSITION INDICATORS, TEMPERATURE CONTROLLERS, [ HEATED VALVE AND COLUMN ENCLOSURES, ] VALVE SEQUENCERS, GAS ANALYZERS, PROGRAMMABLE MICROPROCESSOR CONTROLLERS, [ PROGRAMMABLE MICROPROCESSOR SEQUENCERS, ] PIPE AND SYRINGE ADAPTERS, COLUMN END FITTINGS AND PARTS FOR ALL THE ABOVE GOODS

Goods & Services

TUBE AND PIPE FITTINGS USED FOR CONDUCTING CHEMICALS AND GASES