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Discharge indicator for fluid containers

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Publication number
US3333641A
US3333641A US52829766A US3333641A US 3333641 A US3333641 A US 3333641A US 52829766 A US52829766 A US 52829766A US 3333641 A US3333641 A US 3333641A
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US
Grant status
Grant
Patent type
Prior art keywords
wire
pin
cap
shank
indicator
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.)
Expired - Lifetime
Application number
Inventor
Bernard S Hansom
Abigail Walter Leonard
Original Assignee
Bernard S Hansom
Abigail Walter Leonard
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
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Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C13/00Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/003Extinguishers with spraying and projection of extinguishing agents by pressurised gas
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C37/00Control of fire-fighting equipment
    • A62C37/50Testing or indicating devices for determining the state of readiness of the equipment
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OF DISTRIBUTING GASES OR LIQUIDS
    • F17DPIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00Protection or supervision of installations
    • F17D5/02Preventing, monitoring, or locating loss
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts

Description

United States Patent Office, 3,333,641

Patented Aug. 1, 1967 3 333 641 cator pin 21 is displaced by the stopper 11 it also serves DISCHARGE b cf o FOR FLUID to interrupt an electric circuit and this interruption of CONTAINERS the electric circuit is used to cause a change of state Bernard S. Hansom, 3 Foxherne, Turner Road, Langley, in the operation of an electrically-operated indicator.

England, and Walter Leonard Abigail, 105 Grosvenor 5 The indicator shown diagrammatically at 25 may, for Road, Staiues, England example, be electromagnetically operated and normally F f 1966, P- energized from an electrical source 26 so that when the clam Pnonty, apphcahon Great 1965 circuit is interrupted the indicator 25 is de-energized,

5 g: g ghe deenergized state indicating that the extinguisher has 10 een discharged.

This invention relates to containers for fluids and the It will be understood that the electrically-operated inlike, which term is intended to cover solids which are dicator may be located remotely from the extinguisher sufficiently divided to flow like a fluid. More particuto provide a remote indication of discharge which is larly it relates to fluid containers having a normally-sealed additional to the local indication provided by the projectdischarge outlet which is unsealed to permit discharge of ing end of the shank 21a of the pin 21. On the other hand, the contents of the container. Whilst the projecting end of the shank 21a provides a One example of containers to which the present invenlocal visible indication the interruption of the circuit may tion may be applied are fire extinguishers which contain be used to operate an audible indicator additional to any fire extinguishing liquid or powder. remote visual indication.

According to the present invention there is provided The interruption of the electric circuit by displacement a fluid container having a normally-sealed discharge outlet of the indicator pin 21 results from the fact that a portion and comprising a member which is automatically dis- 22a of an insulation covered wire 22 passes through a placed when said discharge outlet is unsealed, displacehole in the shank 21a of the indicator pin 21. When the ment of said member being adapted to sever an electrical pin 21a is displaced the wire 22 is severed. The wire 22 conductor whereby when said electrical conductor is con- 25 extends from both ends of the portion 22a to the exterior nected in electrical circuit with an electrically operated of the junction box cap 20 to provide electrical connecdischarge-indicator the indicator is operated to indicate tions to the indicator 25 and source 26, this circuit being that the fluid container has been discharged. interrupted by severing of the wire 22 to effect operation The invention also provides a junction box cap for a of the indicator 25 upon displacement of the indicator pin fluid container comprising: 21. After shearing of the wire the two ends are retained An open-topped cylindrical wall and a closed base, in position in the junction box cap 20 by crimped sleeves said base having a first aperture extending therethrough 23 provided on the insulated covering of the wire 22. and having second and third apertures extending there- To avoid any short circuit after operation the wire through and located on diametrically opposite sides of 22 is passed through holes in a washer 24 whose surface said first aperture. is electrically non-conducting. In addition any surfaces A pin having a head and a shank, the lower end of of the pin 21 which might come in contact with the said shank fitting in said aperture and the head being severed ends of the wire 22 are rendered non-conducting. positioned within the interior of the junction box cap, The pin 21 and washer 24 may be of aluminium which is said shank having a transverse hole therethrough, and anodized to render the surfaces non-conductive.

A wire, said wire passing through said second and third We claim: apertures with a mid-portion of said wire extending 1. In a fluid container having a discharge outlet northrough said transverse hole whereby said wire is severed mally sealed by a frangible member, by movement Of said pin resulting from an impact Of the a junction box cap for receiving the frangible memhead of said pin.

One construction of fluid container in accordance with 5 f invention will now be deScTiPed by W P example a pin having a head and a shank, said pin being mounted with reference to the accompanying drawing in which:

in said cap and being displaceable when said frangi- FIGURE 1 1s a part-sectional side elevation of the container whilst ble member is received in said cap, and

FIGURE 2 is a sectional side elevation of the junction 5 a wire said Wire F through said Shank i being box cap of the container and which illustrates the elec- Severed when said pm 18 dlsplaced by sald hangber when it is fractured to free said discharge outlet, said junction box cap having a base,

trical connections thereto. f

This particular construction of container is designed A fluld container accordmg clalm Wherem t contain fir extinguishing liquid or powder in the at least part of the surface of said pm is electrically inbottle shaped cylinder 10. Prior to discharge the outlet Sulatedof the cylinder 10 is sealed by a stopper 11 having a thin A fluid container according to claim wherein Said rim 11a which is severed by ignition of an explosive car- Win? has an insulated coveringtridge 12 when it is desired to discharge the pressurised A junction box p for a fluid container 'ccmprising contents of the cylinder 10. The stopper has a nut portion an p pp cylindrical Wall and a closed base, Said 11b secured by an internal screw-thread 110 on the nut base having a fi aperture extending therethrough,

portion to an external screw-thread 11d on the main having Second and third apertures extending stopper. The explosive gases resulting from ignitio of therethrough and located on diametrically opposite the cartridge 12 enter the space 13 above the nut portion sides of said first ape 11b and apply pressure thereto which fractures the thin a pin having a head and a shank, the lower end of said rim 11a, the stopper 11 being driven by the explosive shank fitting in said aperture and the head being gases into the cap 20 which is shown in detail in FIG- positioned within the interior of the junction box URE 2. cap, said shank having a transverse hole there- The stopper 11 strikes the discharge indicator pin 21 through, and

and displaces it so that one end projects beyond the a wire, said wire passing through said second and third outer surface of the cap 20 and serves to indicate that apertures with a mid-portion of said wire extending the extinguisher has been discharged. When the indithrough said transverse hole whereby said wire is 3 4 severed by movement of said pin resulting from an References Cited the head UNITED STATES PATENTS 5. A unction box cap according to claim 4, wherein said wire is connected in series electrical circuit with an 2,884,076 4/1959 Mathlsen 16928 X electrical source and an electrically energized member 5 whereby said member is fie-energized When said Wire is HENSON WOOD Primary Examiner severed. H. NATTER, Assistamt Examiner.

Claims (1)

1. IN A FLUID CONTAINER HAVING A DISCHARGE OUTLET NORMALLY SEALED BY A FRANGIBLE MEMBER, A JUNCTION BOX CAP FOR RECEIVING THE FRANGIBLE MEMBER WHEN IT IS FRACTURATED TO FREE SAID DISCHARGE OUTLET, SAID JUNCTION BOX CAP HAVING A BASE, A PIN HAVING A HEAD AND A SHANK, SAID PIN BEING MOUNTED IN SAID CAP AND BEING DISPLACEABLE WHEN SAID FRANGIBLE MEMBER IS RECEIVED IN SAID CAP, AND A WIRE, SAID WIRE PASSING THROUGH SAID SHANK AND BEING SEVERED WHEN SAID PIN IS DISPLACED BY SAID FRANGIBLE MEMBER.
US3333641A 1965-02-17 1966-02-17 Discharge indicator for fluid containers Expired - Lifetime US3333641A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB674065A GB1134845A (en) 1965-02-17 1965-02-17 Improvements in or relating to containers for fluids and the like

Publications (1)

Publication Number Publication Date
US3333641A true US3333641A (en) 1967-08-01

Family

ID=9819918

Family Applications (1)

Application Number Title Priority Date Filing Date
US3333641A Expired - Lifetime US3333641A (en) 1965-02-17 1966-02-17 Discharge indicator for fluid containers

Country Status (4)

Country Link
US (1) US3333641A (en)
JP (1) JPS4923433B1 (en)
DE (1) DE1548964B2 (en)
GB (1) GB1134845A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664430A (en) * 1970-10-06 1972-05-23 Htl Industries Electrical monitor for fire extinguisher
US3956604A (en) * 1973-06-26 1976-05-11 Allmanna Svenska Elektriska Aktiebolaget High pressure apparatus having means for detecting a leakage
US4003395A (en) * 1975-07-28 1977-01-18 Systron Donner Corporation Quick-opening valve operated by explosive charge
US4637472A (en) * 1984-06-08 1987-01-20 Abg Semca Rapid discharge extinguisher
US4715448A (en) * 1984-07-24 1987-12-29 Mcculloch Alister L Fire extinguisher outlet head
US5038866A (en) * 1986-11-21 1991-08-13 Santa Barbara Research Center Powder discharge apparatus
US5232053A (en) * 1990-08-24 1993-08-03 Fenwal Safety Systems, Inc. Explosion suppression system
US5775430A (en) * 1996-01-23 1998-07-07 Mija Industries, Inc. Electroluminescent signalling fire extinguisher
US6488099B2 (en) 1996-01-23 2002-12-03 Mija Industries, Inc. Remote fire extinguisher station inspection
US20040065451A1 (en) * 1996-01-23 2004-04-08 Mcsheffrey John J. Remote inspection of emergency equipment stations
US20040194980A1 (en) * 1996-01-23 2004-10-07 Mcsheffrey John Monitoring contents of fluid containers
US20050056090A1 (en) * 1996-01-23 2005-03-17 Mija Industries, Inc. Remote monitoring of fluid containers
US20050231354A1 (en) * 1996-01-23 2005-10-20 Tod Riedel Remote monitoring
US20050237210A1 (en) * 1996-01-23 2005-10-27 Mcsheffrey Brendan T Signaling pressure detection assembly
US20050269110A1 (en) * 1996-01-23 2005-12-08 Mija Industries, Inc., A Massachusetts Corporation Remote fire extinguisher station inspection
US20060193262A1 (en) * 2005-02-25 2006-08-31 Mcsheffrey Brendan T Collecting and managing data at a construction site
US7271704B2 (en) 1996-01-23 2007-09-18 Mija Industries, Inc. Transmission of data to emergency response personnel
US8210047B2 (en) 1996-01-23 2012-07-03 En-Gauge, Inc. Remote fire extinguisher station inspection
US8749373B2 (en) 2008-02-13 2014-06-10 En-Gauge, Inc. Emergency equipment power sources
US8981927B2 (en) 2008-02-13 2015-03-17 En-Gauge, Inc. Object Tracking with emergency equipment
US9041534B2 (en) 2011-01-26 2015-05-26 En-Gauge, Inc. Fluid container resource management
US9609287B2 (en) 2005-03-02 2017-03-28 En-Gauge, Inc. Remote monitoring

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3376644D1 (en) * 1982-10-19 1988-06-23 Vickers Plc Liquid level detecting probe
DE8902858U1 (en) * 1989-03-06 1989-04-20 Berliner Wasser-Betriebe Eigenbetrieb Von Berlin, 1000 Berlin, De

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884076A (en) * 1956-08-31 1959-04-28 Graviner Manufacturing Co Fluid containers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884076A (en) * 1956-08-31 1959-04-28 Graviner Manufacturing Co Fluid containers

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664430A (en) * 1970-10-06 1972-05-23 Htl Industries Electrical monitor for fire extinguisher
US3956604A (en) * 1973-06-26 1976-05-11 Allmanna Svenska Elektriska Aktiebolaget High pressure apparatus having means for detecting a leakage
US4003395A (en) * 1975-07-28 1977-01-18 Systron Donner Corporation Quick-opening valve operated by explosive charge
US4637472A (en) * 1984-06-08 1987-01-20 Abg Semca Rapid discharge extinguisher
US4715448A (en) * 1984-07-24 1987-12-29 Mcculloch Alister L Fire extinguisher outlet head
US5038866A (en) * 1986-11-21 1991-08-13 Santa Barbara Research Center Powder discharge apparatus
US5232053A (en) * 1990-08-24 1993-08-03 Fenwal Safety Systems, Inc. Explosion suppression system
US7450020B2 (en) 1996-01-23 2008-11-11 Mija Industries, Inc. Signaling pressure detection assembly
US5848651A (en) * 1996-01-23 1998-12-15 Mija Industries, Inc. Signalling fire extinguisher assembly
US6302218B1 (en) 1996-01-23 2001-10-16 Mija Industries, Inc. Signalling portable pressurized equipment assembly
US6311779B2 (en) 1996-01-23 2001-11-06 Mija Industries, Inc. Signalling fire extinguisher assembly
US6488099B2 (en) 1996-01-23 2002-12-03 Mija Industries, Inc. Remote fire extinguisher station inspection
US6585055B2 (en) 1996-01-23 2003-07-01 Mija Industries, Inc. Remote fire extinguisher station inspection
US20040065451A1 (en) * 1996-01-23 2004-04-08 Mcsheffrey John J. Remote inspection of emergency equipment stations
US20040194980A1 (en) * 1996-01-23 2004-10-07 Mcsheffrey John Monitoring contents of fluid containers
US20050056090A1 (en) * 1996-01-23 2005-03-17 Mija Industries, Inc. Remote monitoring of fluid containers
US20050231354A1 (en) * 1996-01-23 2005-10-20 Tod Riedel Remote monitoring
US20050237210A1 (en) * 1996-01-23 2005-10-27 Mcsheffrey Brendan T Signaling pressure detection assembly
US20050269110A1 (en) * 1996-01-23 2005-12-08 Mija Industries, Inc., A Massachusetts Corporation Remote fire extinguisher station inspection
US9606013B2 (en) 1996-01-23 2017-03-28 En-Gauge, Inc. Remote fire extinguisher station inspection
US20070028673A1 (en) * 1996-01-23 2007-02-08 Mija Industries, Inc., A Massachusetts Corporation Remote Fire Extinguisher Station Inspection
US7174783B2 (en) 1996-01-23 2007-02-13 Mija Industries, Inc. Remote monitoring of fluid containers
US7174769B2 (en) 1996-01-23 2007-02-13 Mija Industries, Inc. Monitoring contents of fluid containers
US7188679B2 (en) 1996-01-23 2007-03-13 Mija Industries, Inc. Remote fire extinguisher station inspection
US20070120692A1 (en) * 1996-01-23 2007-05-31 Mija Industries, Inc. Monitoring contents of fluid containers
US7271704B2 (en) 1996-01-23 2007-09-18 Mija Industries, Inc. Transmission of data to emergency response personnel
US5775430A (en) * 1996-01-23 1998-07-07 Mija Industries, Inc. Electroluminescent signalling fire extinguisher
US7574911B2 (en) 1996-01-23 2009-08-18 Mija Industries, Inc. Remote fire extinguisher station inspection
US20090282912A1 (en) * 1996-01-23 2009-11-19 Mija Industries Remote fire extinguisher station inspection
US7728715B2 (en) 1996-01-23 2010-06-01 En-Gauge, Inc. Remote monitoring
US7726411B2 (en) 1996-01-23 2010-06-01 En-Gauge, Inc. Remote fire extinguisher station inspection
US20100171624A1 (en) * 1996-01-23 2010-07-08 Mcsheffrey John Remote monitoring of fluid containers
US20100245570A1 (en) * 1996-01-23 2010-09-30 Terrance Riedel Remote monitoring
US7891241B2 (en) 1996-01-23 2011-02-22 En-Gauge, Inc. Remote fire extinguisher station inspection
US7891435B2 (en) 1996-01-23 2011-02-22 En-Gauge, Inc. Remote inspection of emergency equipment stations
US7895884B2 (en) 1996-01-23 2011-03-01 En-Gauge, Inc. Monitoring contents of fluid containers
US20110109454A1 (en) * 1996-01-23 2011-05-12 Mcsheffrey Sr John J Remote inspection of emergency equipment stations
US8009020B2 (en) 1996-01-23 2011-08-30 En-Gauge, Inc. Remote monitoring
US8210047B2 (en) 1996-01-23 2012-07-03 En-Gauge, Inc. Remote fire extinguisher station inspection
US8248216B2 (en) 1996-01-23 2012-08-21 En-Gauge, Inc. Remote monitoring
US8854194B2 (en) 1996-01-23 2014-10-07 En-Gauge, Inc. Remote monitoring
US8421605B2 (en) 1996-01-23 2013-04-16 En-Gauge, Inc. Remote monitoring
US8607617B2 (en) 1996-01-23 2013-12-17 En-Gauge, Inc. Oxygen tank monitoring
US8610557B2 (en) 1996-01-23 2013-12-17 En-Gauge, Inc. Transmission of data to emergency response personnel
US8701495B2 (en) 1996-01-23 2014-04-22 En-Gauge, Inc. Remote fire extinguisher station inspection
US8350693B2 (en) 1996-01-23 2013-01-08 En-Gauge, Inc. Transmission of data to emergency response personnel
US20060193262A1 (en) * 2005-02-25 2006-08-31 Mcsheffrey Brendan T Collecting and managing data at a construction site
US9609287B2 (en) 2005-03-02 2017-03-28 En-Gauge, Inc. Remote monitoring
US8749373B2 (en) 2008-02-13 2014-06-10 En-Gauge, Inc. Emergency equipment power sources
US8981927B2 (en) 2008-02-13 2015-03-17 En-Gauge, Inc. Object Tracking with emergency equipment
US9478121B2 (en) 2008-02-13 2016-10-25 En-Gauge, Inc. Emergency equipment power sources
US9041534B2 (en) 2011-01-26 2015-05-26 En-Gauge, Inc. Fluid container resource management
US9747569B2 (en) 2011-01-26 2017-08-29 En-Gauge, Inc. Fluid container resource management

Also Published As

Publication number Publication date Type
GB1134845A (en) 1968-11-27 application
DE1548964A1 (en) 1970-10-22 application
DE1548964B2 (en) 1974-05-22 application
JPS4923433B1 (en) 1974-06-15 grant

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