GB2248948A - Electron 10 pump activator - Google Patents

Electron 10 pump activator Download PDF

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Publication number
GB2248948A
GB2248948A GB9022719A GB9022719A GB2248948A GB 2248948 A GB2248948 A GB 2248948A GB 9022719 A GB9022719 A GB 9022719A GB 9022719 A GB9022719 A GB 9022719A GB 2248948 A GB2248948 A GB 2248948A
Authority
GB
United Kingdom
Prior art keywords
pump
water
solid state
control unit
fluid
Prior art date
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.)
Withdrawn
Application number
GB9022719A
Other versions
GB9022719D0 (en
Inventor
Stephen Groves
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.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB9022719A priority Critical patent/GB2248948A/en
Publication of GB9022719D0 publication Critical patent/GB9022719D0/en
Publication of GB2248948A publication Critical patent/GB2248948A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B13/00—Conduits for emptying or ballasting; Self-bailing equipment; Scuppers
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/0209—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid
    • F04D15/0218—Stopping of pumps, or operating valves, on occurrence of unwanted conditions responsive to a condition of the working fluid the condition being a liquid level or a lack of liquid supply

Abstract

An electronic pump activator for fitting into boat bilges automatically activates an external pump when the water reaches a level, governed by the position of the unit, which is firmly hold by a mounting bracket 6. As water touches the substrate sensor 2 the control/timing circuit 3 which is preferably encapsulated within an epoxy resin 5, and housed in an enclosure 1, activates an external pump 7 for a controlled period of time. At the end of this controlled period the timing circuits 3 shut down the pump 7. If water is still touching the sensor 2 the cycle is repeated. The pump can be activated manually, regardless of water level via one of the connecting wires 4. <IMAGE>

Description

ELECTRONIC PUMP ACTIVATOR This invention relates to a solid state, fluid, activated pump control unit with built in pre-set timing circuit.
Pump activators in the way of float switches have been around for many years, and are fitted to many marine vessels from small, private craft, to large commercial tugs and fishing boats.
They normally work on the principal that rising water pushes up a floating arm that pivots at the top of the switch body. When this arm reaches its full travel, the switch is activated by a metal ball falling against two contacts within the switch body, thus completing a circuit and switching on a pump.
Float switches do however have their draw backs, these mainly being a fairly short mechanical life, very restricted mounting angles, limited switching current and internal corrosion rendering them unreliable.
According to the present invention there is provided an electronic, fluid activated pump control unit comprising of a solid state electronic fluid sensor, a control circuit with timing devices, and an output relay for switching on electric pumps. All components are housed within an A.B.S. enclosure, encapsulated in an epoxy resin with a mounting bracket (to aid installation) and four flying leads for connection to a suitable power source,a pump, and a switch.
An embodiment of the invention will now be described as follows.
Referring to the drawing and flow chart diagram the unit comprises a fluid sensor 2 and a control/ timing circuit 3, housed in an A.B.S. enclosure 1, and is protected from the elements by an epoxy resin 5. Installation and connection is via a bracket 6 and flying leads 4.
Once installed in a vessels bilge using the fixing bracket 3 and correctly connected via flying leads 4, the unit is now ready for operation.
When the bilge level of the craft rises due to leaks, rainwater or for being left unnattended, it may become low and unstable in the water.
As the bilge level reaches the fluid sensor 2 internal circuits trigger the control/timing circuit 3. This in turn switches on the external bilge pump 7 which then pumps out the water until a safe level is reached.
After a fixed time of running the pump 7 is shut down by the control circuit 3, and the fluid sensor 2 is returned to its normal state. If water is still touching the fluid sensor 2, the whole cycle is repeated.
The unit will operate throughout a wide temperature range and at any angle with a long life expectancy due to a lack of mechanical and consumable parts.
The mounting bracket supplied is of a dual purpose design allowing the unit to be installed using suitable tie wraps or similar articles, or by firmly screwing intro place with suitable fixings.
There may become a time when the external pump may need to be operated even though there may be little or no water in the bilges. This can be attained by connecting one of the flying leads provided to a suitable supply via an external switch. Once connected the fluid sensor and control/timing circuits are overridden, enabling the external pump to operate.

Claims (4)

claims
1 A solid state, fluid activated pump control unit, comprising a solid state fluid sensor, a control circuit with built in timing devices an output relay for switching on external pumps.
2 A solid state, fluid activated pump control unit as claimed in claim 1 wherein a dual purpose bracket is provided to aid installation.
3 A solid state, fluid activated pump control unit, as claimed in claims 1 or 2 wherein means of manually overiding the fluid sensor and control/timing circuit via a flying lead provided, of which can be connected to an external switch.
4 A solid state, fluid activated pump control unit substantially as described herein with reference to the accompanying drawing.
GB9022719A 1990-10-19 1990-10-19 Electron 10 pump activator Withdrawn GB2248948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9022719A GB2248948A (en) 1990-10-19 1990-10-19 Electron 10 pump activator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9022719A GB2248948A (en) 1990-10-19 1990-10-19 Electron 10 pump activator

Publications (2)

Publication Number Publication Date
GB9022719D0 GB9022719D0 (en) 1990-12-05
GB2248948A true GB2248948A (en) 1992-04-22

Family

ID=10683974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9022719A Withdrawn GB2248948A (en) 1990-10-19 1990-10-19 Electron 10 pump activator

Country Status (1)

Country Link
GB (1) GB2248948A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0947703A1 (en) * 1998-04-03 1999-10-06 Ksb S.A. Submersible motorpump unit with control system mounted on the motor housing
DE10141397B4 (en) * 2000-08-29 2007-05-03 Sanden Corp., Isesaki Motor driven compressor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB915948A (en) * 1960-10-19 1963-01-16 Automatic Canteen Co Liquid level control means
US4222711A (en) * 1978-06-22 1980-09-16 I2 Ds Sump pump control system
GB2065336A (en) * 1979-11-23 1981-06-24 Mackenzie J R S Automatic level control system for an oil contaminant
GB1602759A (en) * 1978-05-30 1981-11-18 Lanebo B A Methods for regulation of a liquid level in a container and a device for performing the method
US4678403A (en) * 1985-08-01 1987-07-07 Rudy Richard M Liquid level sensor for controlling pump operation
US4881873A (en) * 1988-12-14 1989-11-21 Altus Technology Corporation Capacitance level sensor for a bilge pump

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB915948A (en) * 1960-10-19 1963-01-16 Automatic Canteen Co Liquid level control means
GB1602759A (en) * 1978-05-30 1981-11-18 Lanebo B A Methods for regulation of a liquid level in a container and a device for performing the method
US4222711A (en) * 1978-06-22 1980-09-16 I2 Ds Sump pump control system
GB2065336A (en) * 1979-11-23 1981-06-24 Mackenzie J R S Automatic level control system for an oil contaminant
US4678403A (en) * 1985-08-01 1987-07-07 Rudy Richard M Liquid level sensor for controlling pump operation
US4881873A (en) * 1988-12-14 1989-11-21 Altus Technology Corporation Capacitance level sensor for a bilge pump

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PRACTICAL ELECTRONICS VOL.20 NO.10 OCT 1984, page 58 "Automatic Bilge Pump." *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0947703A1 (en) * 1998-04-03 1999-10-06 Ksb S.A. Submersible motorpump unit with control system mounted on the motor housing
DE10141397B4 (en) * 2000-08-29 2007-05-03 Sanden Corp., Isesaki Motor driven compressor

Also Published As

Publication number Publication date
GB9022719D0 (en) 1990-12-05

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)