GB1441983A – Dispensing of liquids by motor driven syringes
– Google Patents
GB1441983A – Dispensing of liquids by motor driven syringes
– Google Patents
Dispensing of liquids by motor driven syringes
Info
Publication number
GB1441983A
GB1441983A
GB1080873A
GB1080873A
GB1441983A
GB 1441983 A
GB1441983 A
GB 1441983A
GB 1080873 A
GB1080873 A
GB 1080873A
GB 1080873 A
GB1080873 A
GB 1080873A
GB 1441983 A
GB1441983 A
GB 1441983A
Authority
GB
United Kingdom
Prior art keywords
switch
switches
motor
closed
relay
Prior art date
1973-03-06
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1080873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1973-03-06
Filing date
1973-03-06
Publication date
1976-07-07
1973-03-06
Application filed by British American Tobacco Co Ltd
filed
Critical
British American Tobacco Co Ltd
1973-03-06
Priority to GB1080873A
priority
Critical
patent/GB1441983A/en
1976-07-07
Publication of GB1441983A
publication
Critical
patent/GB1441983A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
B01L3/02—Burettes; Pipettes
B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
B01L3/0217—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type
B01L3/0224—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids of the plunger pump type having mechanical means to set stroke length, e.g. movable stops
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F04—POSITIVE – DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 – F04B47/00
F04B49/06—Control using electricity
Abstract
1441983 Syringes BRITISH-AMERICAN TOBACCO CO Ltd 4 March 1974 [6 March 1973] 10808/73 Heading F1R [Also in Division H2] A micrometer syringe is operated by a rotary member 8 which is driven by an electric motor 2 through slidable means 4, 7. The discharge by the syringe is controlled by stepping the motor by means of an electronic pre-selector control system. As shown the drive disc 5 has apertures 12 controlling light pulses to a photo-cell 14 connected to a two decade counter 17, 19 the decoders of which are connected to numerical display units 18, 20 and also to ten-way switches 21, 22. Until the switch contact selected is earthed by the decoder, junction 25 is at a positive voltage and transistor 28 will be cut-off hence relay winding 29 deenergized with switch 29a open and 29b closed. Switches 36, 37 are limit switches and switch 38 a three position «Wait» (illustrated), «Dispense» and «Fill» switch. Operation of switch 31 momentarily energizes relay 33 to close contacts 33b to supply a pulse from source 40 to zero the counters. With switch 38 in «Dispense» position, limit switch 36 closed and switches 21, 22 selecting numbers, junction 25 is positive and relay 29 de-energized so that current flows from source 39 via 29b, 33c, 36, 38e to motor 2 until the numbers indicated equal the switch positions whereon 25 becomes zero, 29 is energized 29a is closed (to hold) and 29b opened to stop the motor.
GB1080873A
1973-03-06
1973-03-06
Dispensing of liquids by motor driven syringes
Expired
GB1441983A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB1080873A
GB1441983A
(en)
1973-03-06
1973-03-06
Dispensing of liquids by motor driven syringes
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1080873A
GB1441983A
(en)
1973-03-06
1973-03-06
Dispensing of liquids by motor driven syringes
Publications (1)
Publication Number
Publication Date
GB1441983A
true
GB1441983A
(en)
1976-07-07
Family
ID=9974661
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1080873A
Expired
GB1441983A
(en)
1973-03-06
1973-03-06
Dispensing of liquids by motor driven syringes
Country Status (1)
Country
Link
GB
(1)
GB1441983A
(en)
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2358651A1
(en)
*
1976-07-13
1978-02-10
Sundstrom Karl
IMPROVEMENTS FOR LIQUID DOSERS
EP0009013A1
(en)
*
1978-09-04
1980-03-19
Lkb Clinicon Aktiebolag
A pipetting and dosing device
US4566868A
(en)
*
1980-09-17
1986-01-28
Geotechnical Digital Systems Limited
Pressure source
GB2415423A
(en)
*
2004-06-22
2005-12-28
Bosch Gmbh Robert
Dosing apparatus and method of operating the same
WO2008099180A1
(en)
2007-02-16
2008-08-21
Brunob Ii B. V.
Apparatus for and methods of mixing and dispensing liquid or powdery samples
CN106014945A
(en)
*
2016-05-30
2016-10-12
创世科研有限公司
Precise control method of water outlet amount of micro water pump and micro water pump
1973
1973-03-06
GB
GB1080873A
patent/GB1441983A/en
not_active
Expired
Cited By (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
FR2358651A1
(en)
*
1976-07-13
1978-02-10
Sundstrom Karl
IMPROVEMENTS FOR LIQUID DOSERS
EP0009013A1
(en)
*
1978-09-04
1980-03-19
Lkb Clinicon Aktiebolag
A pipetting and dosing device
US4566868A
(en)
*
1980-09-17
1986-01-28
Geotechnical Digital Systems Limited
Pressure source
GB2415423A
(en)
*
2004-06-22
2005-12-28
Bosch Gmbh Robert
Dosing apparatus and method of operating the same
GB2415423B
(en)
*
2004-06-22
2007-02-28
Bosch Gmbh Robert
A method of dosing substances
US7191917B2
(en)
2004-06-22
2007-03-20
Robert Bosch Gmbh
Metering device and method for operating such
WO2008099180A1
(en)
2007-02-16
2008-08-21
Brunob Ii B. V.
Apparatus for and methods of mixing and dispensing liquid or powdery samples
EP2420314A2
(en)
2007-02-16
2012-02-22
Brunob Ii B.V.
Apparatus for and method for mixing small samples of material
CN106014945A
(en)
*
2016-05-30
2016-10-12
创世科研有限公司
Precise control method of water outlet amount of micro water pump and micro water pump
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Legal Events
Date
Code
Title
Description
1976-11-17
PS
Patent sealed
1979-01-17
746
Register noted ‘licences of right’ (sect. 46/1977)
1982-09-29
PCNP
Patent ceased through non-payment of renewal fee
