Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1998052034) THERMAL EXPANSION PUMP FOR PULSE-FREE LIQUID FLOW
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052034 International Application No.: PCT/US1998/010119
Publication Date: 19.11.1998 International Filing Date: 14.05.1998
IPC:
F04B 19/24 (2006.01) ,F04F 1/04 (2006.01) ,G01N 30/32 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
B
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
19
Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B1/-F04B17/158
20
Other positive-displacement pumps
24
Pumping by heat expansion of pumped fluid
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04
POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F
PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
1
Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
02
using both positively and negatively pressurised fluid medium, e.g. alternating
04
generated by vaporising and condensing
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
30
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
02
Column chromatography
26
Conditioning of the fluid carrier; Flow patterns
28
Control of physical parameters of the fluid carrier
32
of pressure or speed
Applicants:
BIO-RAD LABORATORIES, INC. [US/US]; P.O. Box 5340 Hercules, CA 94547, US (AllExceptUS)
HJERTEN, Stellan [SE/SE]; SE (UsOnly)
ERICSON, Christer [SE/SE]; SE (UsOnly)
Inventors:
HJERTEN, Stellan; SE
ERICSON, Christer; SE
Agent:
HEINES, M., Henry ; Townsend and Townsend and Crew LLP 8th floor Two Embarcadero Center San Francisco, CA 94111-3834, US
Priority Data:
08/857,02415.05.1997US
Title (EN) THERMAL EXPANSION PUMP FOR PULSE-FREE LIQUID FLOW
(FR) POMPE A EXPANSION THERMIQUE POUR ECOULEMENT DE LIQUIDE SANS IMPULSION
Abstract:
(EN) Pulse-free flow, for instance for capillary chromatography, is provided by a pump comprised of a length of heat transmissive tubing filled with a liquid that undergoes thermal expansion upon heating, in conjunction with a heating device that provides uniform heating of the tubing and its contents at a controlled rate.
(FR) La présente invention concerne un écoulement sans impulsion, par exemple pour chromatographie capillaire, produit par une pompe constituée d'une longueur de tube transmettant la chaleur, remplie d'un liquide présentant une expansion thermique sous l'effet de la chaleur et d'un dispositif de chauffage qui chauffe de manière uniforme le tube et son contenu de façon régulée.
front page image
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1998075771