US3132974A - Deferred-action battery diaphragm-rupturing device - Google Patents

Deferred-action battery diaphragm-rupturing device Download PDF

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US3132974A
US3132974A US480660A US3132974A US 3132974 A US3132974 A US 3132974A US 480660 A US480660 A US 480660A US 3132974 A US3132974 A US 3132974A
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electrolyte
diaphragm
chamber
casing
cutter
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Charles M Gold
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Yardney International Corp
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Yardney International Corp
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Priority to US468960 priority Critical patent/US3075035A/en
Priority to US480660 priority patent/US3132974A/en
Priority to US468860 priority patent/US3079047A/en
Priority to FR849896A priority patent/FR1303459A/en
Priority to GB296161D priority patent/GB930327A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/30—Deferred-action cells
    • H01M6/36—Deferred-action cells containing electrolyte and made operational by physical means, e.g. thermal cells
    • H01M6/38—Deferred-action cells containing electrolyte and made operational by physical means, e.g. thermal cells by mechanical means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/1624—Destructible or deformable element controlled
    • Y10T137/1632—Destructible element
    • Y10T137/1692—Rupture disc
    • Y10T137/1759—Knife or cutter causes disc to break
    • Y10T137/1767—Movable knife or cutter

Definitions

  • the present invention relates to a device for rupturing a diaphragm for the purpose of enabling the passage of a fluid, especially a liquid, through an initially sealed duct.
  • Such devices are used, for example, in a reserve-type or deferred-action electric battery in which one or more electrochemical cells in the dry-charged state are activated, in response to a predetermined signal, by the transfer of electrolyte liquor from a storage container to the housing of each cell.
  • diaphragms for the purpose set forth have generally been made of easily frangible material, such as a plastic or ceramic substance, adapted to be ruptured or shattered on contact with a pointed or even a blunt piercing member.
  • a disadvantage of such systems is that, notwithstanding the provision of various safeguards, pre mature activation sometimes occurs on account of ac celeration, impact or vibration whereby the diaphragm is urged against the piercing member, or vice versa, with sufiicient force to cause rupture of the former by the latter.
  • an object of the present invention to provide an improved combination of diaphragm and piercing device which affords the necessary safeguards against undesired activation of such device.
  • a more specific object ofthis invention is to provide means for quickly and effectively rupturing, in response to a predetermined signal, a sheet-metal diaphragm barring the flow of a fluid such as, for example, a liquid electrolyte.
  • the invention resides, according to one of its aspects, in the positioning of a generally triangular cutter, having a knife point at the acute apex of the triangle, adjacent a metallic diaphragm, in combination with means for pivoting the triangle about its base in a sense driving the knife point into the diaphragm whereby the latter is cut open by an action comparable to that of a can opener upon the flat end of a tin can.
  • the generally triangular cutter forms one arm of a bell-crank lever whose other arm is disposed adjacent an operating member poised to exert upon this latter arm, in response to an activating signal, sufiicient pressure to swing the bell-crank lever about its pivot in a diaphragm-piercing sense.
  • the operating member may be a piston adapted to be driven toward the adjacent lever arm by, for example, the detonation of an explosive charge.
  • FIG. 1 shows, in longitudinal section, an activator for a dry-charged electric battery, the activator incorporating a diaphragm-piercing mechanism according to the invention.
  • FIG. 2 shows parts of the diaphragm-piercing mechanism in perspective view
  • FIG. 3 shows, again in perspective view, another part ice of the activator adapted to be operated simultaneously with the diaphragm-piercing mechanism.
  • the activator shown in the drawing comprises a cylindrical container 1%) for a liquid electrolyte, e.g. a concentrated aqueous solution of potassium hydroxide, this container having a large outlet 11 initially blocked by a metallic diaphragm 12.
  • This outlet leads to a chamber 14 Within which a bell-crank lever 15, consisting of two arms 15a and 15b, is pivotable about a transverse pin 16.
  • Arm 15a rests horizontally on a safety stud 17 which prevents the cutter 15 from striking the diaphragm and weakening it before activation; the slightly curved arm 15b depends approximately vertically adjacent diaphragm 12 and is of generally triangular configuration, the base of the triangle being in the vicinity of pin 16 while its apex, forming a knife point 15c, is turned toward the diaphragm. It will be noted that the height of the triangle, as measured between point 15c and pin 16, is substantially less than the spacing of the pin from diaphragm 12.
  • the container it is further provided, opposite outlet ll, with a gas-inlet tube 13 terminating in a nipple H which is initially sealed by a tubulation 20 having a constricted neck 29.
  • a bail 21 of spring wire, biased for counter-clockwise rotation as viewed in FIG. 1, is wound about a pin 22 which bridges a pair of brackets 23a, 23b, on a supporting plate 24.
  • This plates carries a pair of terminal posts 25a, 25b which are connected by a pair of conductors 26a, 26b across a source of current 27 (here shown diagrammatically as a battery) via a normally open switch 28.
  • a fusible wire 29 is tied electrically and mechanically to the posts 25a, 25b and is stretched in a loop around a lug 30' of a detent element 30 which is pivotable about a pin 31 and has a shoulder 30 engaging the bail 21 to latch it in its illustrated position.
  • Tube 18 extends from a cartridge 32 containing a compressed gas.
  • a bladder 34 clamped between plate 24 and a Wall of container 10, surrounds the shell 33 and extends longitudinally within the container toward the outlet 11 thereof.
  • This bladder originally deflated, is inflatable by the pressure of gas from cartridge 32, after the activation of the release mechanism in a manner to be described, to exert pressure upon the surrounding electrolyte liquid and to force it outwardly through the simultaneously unblocked outlet 11.
  • Chamber 14 is provided at one end with a discharge tube 35 for the electrolyte, leading to the cells of a drychargedelectric battery not shown.
  • a plug .36 extends into chamber 14; this plug houses a slidable piston 37, bearing upon the lever arm 15a, and a squib 38 whose explosive charge is adapted to be set oil by battery 27 via conductors 26a, 26b upon closure of switch 23.
  • the activator shown in the drawing is connected by its discharge tube 35 to the battery to be served thereby.
  • the switch 28 is closed, current from source 27 detonates'the charge of squib 38 to drive the piston 37 downwardly; this action causes the safety stud, which may be of soft metal such as copper to yield (dot-dash lines, FIG. 1) as the lever 15 swings counterclockwise about its pivot 16 so that point 15c slits the diaphragm 12 from the bottom up.
  • the current flowing through conductors26a, 26b melts the wire 29, thus releasing the detent 30 and unblocking the nipple 19 so that gas from cartridge 32 streams through tube 18 into bladder 34 to inflate it.
  • a deferred-action battery comprising a cell casing, electrodes disposed in said casing, and electrolyte-supply means for feeding electrolyte into said casing and contact with said electrodes, said electrolyte-supply means including a housing forming an electrolyte chamber having an outlet; a substantially inflexible but incisable, generally planar diaphragm closing said outlet below the level of electrolyte in said chamber, said housing being formed with a compartment externally of said chamber communicating with said casing; a cutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis generally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible diaphragm upon forcible displacement in a predetermined sense about said axis; plunger means in said compartment engageable with said cutter for displacing it in said sense; precipitously triggerable actuating means for driving said plunger into engagement with said plunger means and said cutter into incising engagement with said
  • a deferred-action battery comprising a cellcasing, electrodes disposed in said casing, and electrolyte-supply means for feeding electrolyte into said casing and contact with .said electrodes, said electrolyte-supply means including a housing forming an electrolyte chamber having an outlet; a substantially iidiexible but incisable, gener ally planar sheet-metal diaphragm closing said outlet below the level of electrolyte in said chamber, said'hous ing being formed with a compartment externally of said chamber communicating with said casing; a cutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis gener ally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible sheet-metal diaphragm upon forcible displacement in a predetermined sense about said axis but normally restrained from displacement in said sense; plunger means in said compartment engageable with said cutter for displacing it in said sense
  • a deferred-action battery comprising a cell casing, electrodes disposed in said casing, and electrolyte supply means for feeding electrolyte into said casing and contact with said electrodes, said electrolyte-supply means including a housing forming an elongated electrolyte,
  • a deferred-action battery comprising a cell casing, electrodes disposed in said casing, and electrolyte-supply means for. feeding electrolyte into said casing and contact with said electrodes, said electrolyte-supply means including a housing forming an elongated electrolyte chamher having an outlet at one end; a substantially inflexible butincisable, generally planar sheet-metal diaphragm closing said outlet below the level of electrolyte in said chamher, said housing being formed with a compartment externally of said chamber communicating with said casing; a cutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis generally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible sheet-metal diaphragm upon forcible displacement in a predetermined sense about said axis but'normally restrained from displacement in said sense; plunger means in said compartment engageable with said cutter for displacing it in said sense;
  • said bladder a source of pressure fluid supplying said inlet, normally closed valve means in said chamber at said inlet for blocking the supply of said pressure fluid from said source to said bladder prior to operation of said actuating means, and means for opening said valve means upon operation of said actuating means.
  • a deferred-action battery comprising a cell casing, electrodes disposed in said casing, and electrolyte-supply means for feeding electrolyte into said casing and contact with said electrodes, said electrolyte supply means including a housing forming an elongated electrolyte chamber having an outlet at one end; a substantially inflexible but incisable, generally planar sheet-metal diaphragm closing said outlet below the level of electro lyte in said chamber, said housing being formed with a compartment externally of said chamber communicating with said casing; acutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis generally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible sheet-metal diaphragm upon forcible displacement in a predetermined sense aboutsaid axis but normally restrained from displacement in said sense; plunger means in said compartment engageable with said cutter for displacing it in said sense; precipitously triggerable

Description

C. M. GOLD May 12, 1964 DEFERRED-ACTION BATTERY DIAPHRAGM-RUPTURING DEVICE Filed Jan. 26, 1960 u ml INVENTOR. CHARLES M. GOLD AGENT United States Patent 3,132,974 DEFERRED-ACTION BATTERY DKAPGM- RUPTURiNG DEVICE Charles M. Gold, Franklin Square, N.Y., assignor to Yardney International Corp, New York, N.Y., a corporation of New York Filed Jan. 26, 1969, Ser. No. 4,896 Claims. (Cl. 136-90) The present invention relates to a device for rupturing a diaphragm for the purpose of enabling the passage of a fluid, especially a liquid, through an initially sealed duct. Such devices are used, for example, in a reserve-type or deferred-action electric battery in which one or more electrochemical cells in the dry-charged state are activated, in response to a predetermined signal, by the transfer of electrolyte liquor from a storage container to the housing of each cell.
Heretofore, diaphragms for the purpose set forth have generally been made of easily frangible material, such as a plastic or ceramic substance, adapted to be ruptured or shattered on contact with a pointed or even a blunt piercing member. A disadvantage of such systems is that, notwithstanding the provision of various safeguards, pre mature activation sometimes occurs on account of ac celeration, impact or vibration whereby the diaphragm is urged against the piercing member, or vice versa, with sufiicient force to cause rupture of the former by the latter.
It is, therefore, an object of the present invention to provide an improved combination of diaphragm and piercing device which affords the necessary safeguards against undesired activation of such device.
A more specific object ofthis invention is to provide means for quickly and effectively rupturing, in response to a predetermined signal, a sheet-metal diaphragm barring the flow of a fluid such as, for example, a liquid electrolyte.
It is also an object of the invention to provide a piercing device of the character referred to which can be readily activated by a mechanism adapted to perform a concurrent operation in response to the same signal, such as the release of a charge of compressed gas serving to exert pressure upon the liquid to be driven past the ruptured diaphragm.
The invention resides, according to one of its aspects, in the positioning of a generally triangular cutter, having a knife point at the acute apex of the triangle, adjacent a metallic diaphragm, in combination with means for pivoting the triangle about its base in a sense driving the knife point into the diaphragm whereby the latter is cut open by an action comparable to that of a can opener upon the flat end of a tin can.
In accordance with a more specific feature of the invention, the generally triangular cutter forms one arm of a bell-crank lever whose other arm is disposed adjacent an operating member poised to exert upon this latter arm, in response to an activating signal, sufiicient pressure to swing the bell-crank lever about its pivot in a diaphragm-piercing sense. The operating member may be a piston adapted to be driven toward the adjacent lever arm by, for example, the detonation of an explosive charge.
The invention will be described in greater detail with reference to the accompanying drawing wherein:
FIG. 1 shows, in longitudinal section, an activator for a dry-charged electric battery, the activator incorporating a diaphragm-piercing mechanism according to the invention.
FIG. 2 shows parts of the diaphragm-piercing mechanism in perspective view; and
FIG. 3 shows, again in perspective view, another part ice of the activator adapted to be operated simultaneously with the diaphragm-piercing mechanism.
The activator shown in the drawing comprises a cylindrical container 1%) for a liquid electrolyte, e.g. a concentrated aqueous solution of potassium hydroxide, this container having a large outlet 11 initially blocked by a metallic diaphragm 12. A shield 13, in the form of a perforated cap, overlies the outlet 11 on the inside of the container. This outlet leads to a chamber 14 Within which a bell-crank lever 15, consisting of two arms 15a and 15b, is pivotable about a transverse pin 16. Arm 15a rests horizontally on a safety stud 17 which prevents the cutter 15 from striking the diaphragm and weakening it before activation; the slightly curved arm 15b depends approximately vertically adjacent diaphragm 12 and is of generally triangular configuration, the base of the triangle being in the vicinity of pin 16 while its apex, forming a knife point 15c, is turned toward the diaphragm. It will be noted that the height of the triangle, as measured between point 15c and pin 16, is substantially less than the spacing of the pin from diaphragm 12.
The container it is further provided, opposite outlet ll, with a gas-inlet tube 13 terminating in a nipple H which is initially sealed by a tubulation 20 having a constricted neck 29. A bail 21 of spring wire, biased for counter-clockwise rotation as viewed in FIG. 1, is wound about a pin 22 which bridges a pair of brackets 23a, 23b, on a supporting plate 24. This plates carries a pair of terminal posts 25a, 25b which are connected by a pair of conductors 26a, 26b across a source of current 27 (here shown diagrammatically as a battery) via a normally open switch 28. A fusible wire 29 is tied electrically and mechanically to the posts 25a, 25b and is stretched in a loop around a lug 30' of a detent element 30 which is pivotable about a pin 31 and has a shoulder 30 engaging the bail 21 to latch it in its illustrated position. Tube 18 extends from a cartridge 32 containing a compressed gas.
The elements supported on plate 24 and illustrated in FIG. 3, forming part of a gas-release mechanism, are enclosed within a shell 33 provided with a gas passage 33. A bladder 34, clamped between plate 24 and a Wall of container 10, surrounds the shell 33 and extends longitudinally within the container toward the outlet 11 thereof. This bladder, originally deflated, is inflatable by the pressure of gas from cartridge 32, after the activation of the release mechanism in a manner to be described, to exert pressure upon the surrounding electrolyte liquid and to force it outwardly through the simultaneously unblocked outlet 11.
Chamber 14 is provided at one end with a discharge tube 35 for the electrolyte, leading to the cells of a drychargedelectric battery not shown. Opposite tube 35, a plug .36 extends into chamber 14; this plug houses a slidable piston 37, bearing upon the lever arm 15a, and a squib 38 whose explosive charge is adapted to be set oil by battery 27 via conductors 26a, 26b upon closure of switch 23.
In operation, the activator shown in the drawing is connected by its discharge tube 35 to the battery to be served thereby. When, thereafter, the switch 28 is closed, current from source 27 detonates'the charge of squib 38 to drive the piston 37 downwardly; this action causes the safety stud, which may be of soft metal such as copper to yield (dot-dash lines, FIG. 1) as the lever 15 swings counterclockwise about its pivot 16 so that point 15c slits the diaphragm 12 from the bottom up. At the same time the current flowing through conductors26a, 26b melts the wire 29, thus releasing the detent 30 and unblocking the nipple 19 so that gas from cartridge 32 streams through tube 18 into bladder 34 to inflate it. The
- pressure of the bladder upon the electrolyte in container in various modifications and adaptations Without departing from the spirit and scope of the appended claims.
What is claimed is:
1. A deferred-action battery, comprising a cell casing, electrodes disposed in said casing, and electrolyte-supply means for feeding electrolyte into said casing and contact with said electrodes, said electrolyte-supply means including a housing forming an electrolyte chamber having an outlet; a substantially inflexible but incisable, generally planar diaphragm closing said outlet below the level of electrolyte in said chamber, said housing being formed with a compartment externally of said chamber communicating with said casing; a cutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis generally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible diaphragm upon forcible displacement in a predetermined sense about said axis; plunger means in said compartment engageable with said cutter for displacing it in said sense; precipitously triggerable actuating means for driving said plunger into engagement with said plunger means and said cutter into incising engagement with said diaphragm to release said electrolyte from said chamber; and pressure means establishing a pressure differential across said outlet for forcing saidelectrolyte out of said chamber through the incised diaphragm with operation of said actuating means.
2. A deferred-action battery, comprising a cellcasing, electrodes disposed in said casing, and electrolyte-supply means for feeding electrolyte into said casing and contact with .said electrodes, said electrolyte-supply means including a housing forming an electrolyte chamber having an outlet; a substantially iidiexible but incisable, gener ally planar sheet-metal diaphragm closing said outlet below the level of electrolyte in said chamber, said'hous ing being formed with a compartment externally of said chamber communicating with said casing; a cutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis gener ally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible sheet-metal diaphragm upon forcible displacement in a predetermined sense about said axis but normally restrained from displacement in said sense; plunger means in said compartment engageable with said cutter for displacing it in said sense; precipitously triggerableactuating means for driving said plunger into engagement with said plunger means and said cutter into incising engagement with said sheet-metal diaphragm to release said electrolyte from said chamber; and pressure means establishing a pressure differential across said outlet for forcing said electrolyte out of said chamber through the incised sheet-metal diaphragm with operation of said actuating means.
3. A deferred-action battery, comprising a cell casing, electrodes disposed in said casing, and electrolyte supply means for feeding electrolyte into said casing and contact with said electrodes, said electrolyte-supply means including a housing forming an elongated electrolyte,
chamber having an outlet at one end; a substantially inflexible but incisable, generally planar diaphragm closing said outlet below the level of electrolyte in said chamber, said housing being formed with a compartment externally of said chamber communicating with said casing; a cutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis generally parallel thereto, said cutting having a penetrating edge adapted to perforate said inflexible diaphragm upon forcible displacement in a predetermined sense about said axis but normally restrained from displacement in said sense; plunger means in said compartment engageable with said cutter for displacing it in said sense; plunger means in saidcompartment engageable with said cutter for displacing it in said sense; precipitously triggerable actuating means for driving said plunegr into engagement with said plunger means and said cutter into incising engagement with said diaphragm to release said electrolyte from said chamber; and pressure means establising a pressure differential across said outlet for forcing said electrolyte out of said chamber through the incised diaphragm with operation of said actuating means, said pressure means including an inflatable bladder in said chamber, an inlet for a pressure fluid at an end of said chamber remote from said outlet communicating With said bladder, a source of pressure fluid supplying said inlet, normally closed valve means in said chamber at said inlet for blocking the supply of said presstue fluid from said source to said bladder prior to operation of said actuating means, and means for opening said valve means upon operation of said actuating means. i
4. A deferred-action battery, comprising a cell casing, electrodes disposed in said casing, and electrolyte-supply means for. feeding electrolyte into said casing and contact with said electrodes, said electrolyte-supply means including a housing forming an elongated electrolyte chamher having an outlet at one end; a substantially inflexible butincisable, generally planar sheet-metal diaphragm closing said outlet below the level of electrolyte in said chamher, said housing being formed with a compartment externally of said chamber communicating with said casing; a cutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis generally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible sheet-metal diaphragm upon forcible displacement in a predetermined sense about said axis but'normally restrained from displacement in said sense; plunger means in said compartment engageable with said cutter for displacing it in said sense; precipitously triggerable actuating means for driving said plunger into engagement with said plunger means and said cutter into incising engagement With said sheetmetal diaphragm to release said electrolyte from said chamber; and pressure means establishing a pressure differential across said outlet forforcing said electrolyte out of said chamber through the incised sheetmetal diaphragm with operation of said actuating means, said pressure means including an inflatable bladder in said chamber, an inlet for a pressure fluid at an end of said chamber remote from said outlet communicating with.
said bladder, a source of pressure fluid supplying said inlet, normally closed valve means in said chamber at said inlet for blocking the supply of said pressure fluid from said source to said bladder prior to operation of said actuating means, and means for opening said valve means upon operation of said actuating means.
5. A deferred-action battery, comprising a cell casing, electrodes disposed in said casing, and electrolyte-supply means for feeding electrolyte into said casing and contact with said electrodes, said electrolyte supply means including a housing forming an elongated electrolyte chamber having an outlet at one end; a substantially inflexible but incisable, generally planar sheet-metal diaphragm closing said outlet below the level of electro lyte in said chamber, said housing being formed with a compartment externally of said chamber communicating with said casing; acutter pivotally mounted in said compartment adjacent said diaphragm for angular displacement about an axis generally parallel thereto, said cutter having a penetrating edge adapted to perforate said inflexible sheet-metal diaphragm upon forcible displacement in a predetermined sense aboutsaid axis but normally restrained from displacement in said sense; plunger means in said compartment engageable with said cutter for displacing it in said sense; precipitously triggerable actuating means including an explosive squib cooperating with said plunger for driving it into engagement with said plunger means and said cutter into incising engagement With said sheet-metal diaphragm to release said electrolyte from said chamber; and pressure means establishing a pressure differential across said outlet for forcing said electrolyte out of said chamber through the incised sheet-metal diaphragm with operation of said actuating means, said pressure means includ: ing an inflatable bladder in said chamber, an inlet for a pressure fluid at an end of said chamber remote from said outlet communicating With said bladder, a source of pressure fluid supplying said inlet, normally closed valve means in said chamber at said inlet for blocking the supply of said pressure fluid from said source to said bladder prior to operation of said actuating means, and
means for operating said valve means upon operation of said actuating means.
References Cited in the file of this patent UNITED STATES PATENTS 1,108,714 Davis Aug. 25, 1914 1,886,805 Hagebuseh Nov. 8, 1932 1,997,888 Sexton Apr. 16, 1935 2,179,588 Dennison Nov. 14, 1936 2,322,808 Hothersall June 29, 194-3 2,603,385 Toth July 15, 1952 2,603,857 Hanby July 22, 1952 2,788,917 Cool Apr. 16, 1957 2,896,067 Lockwood July 21, 1959 2,937,220 Bauman May 17, 1960 2,963,533 Gold et a1. Dec. 6, 1960 FOREIGN PATENTS 1,126,430 France Nov. 22, 1956

Claims (1)

1. A DEFERRED-ACTION BATTERY, COMPRISING A CELL CASING, ELECTRODES DISPOSED IN SAID CASING, AND ELECTROLYTE-SUPPLY MEANS FOR FEEDING ELECTROLYTE INTO SAID CASING AND CONTACT WITH SAID ELECTRODES, SAID ELECTROLYTE-SUPPLY MEANS INCLUDING A HOUSING FORMING AN ELECTROLYTE CHAMBER HAVING AN OUTLET; A SUBSTANTIALLY INFLEXIBLE BUT INCISABLE, GENERALLY PLANAR DIAPHRAGM CLOSING SAID OUTLET BELOW THE LEVEL OF ELECTROLYTE IN SAID CHAMBER, SAID HOUSING BEIG FORMED WITH A COMPARTMENT EXTERNALLY OF SAID CHAMBER COMMUNICATING WITH SAID CASING; A CUTTER PIVOTALLY MOUNTED IN SAID COMPARTMENT ADJACENT SAID DIAPHRAGM FOR ANGULAR DISPLACEMENT ABOUT AN AXIS GENERALLY PARALLEL THERETO, SAID CUTTER HAVING A PENETRATING EDGE ADAPTED TO PERFORATE SAID INFLEXIBLE DIAPHRAGM UPON FORCIBLE DISPLACEMENT IN
US480660 1960-01-26 1960-01-26 Deferred-action battery diaphragm-rupturing device Expired - Lifetime US3132974A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US468960 US3075035A (en) 1960-01-26 1960-01-26 Fluid-discharge device
US480660 US3132974A (en) 1960-01-26 1960-01-26 Deferred-action battery diaphragm-rupturing device
US468860 US3079047A (en) 1960-01-26 1960-01-26 Activator for reserve-type electrochemical batteries
FR849896A FR1303459A (en) 1960-01-26 1961-01-17 Activation device for electrochemical batteries of the reserve type
GB296161D GB930327A (en) 1960-01-26 1961-01-23 Improvements in or relating to an activator for an electric cell or battery

Applications Claiming Priority (3)

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US468960 US3075035A (en) 1960-01-26 1960-01-26 Fluid-discharge device
US480660 US3132974A (en) 1960-01-26 1960-01-26 Deferred-action battery diaphragm-rupturing device
US468860 US3079047A (en) 1960-01-26 1960-01-26 Activator for reserve-type electrochemical batteries

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US468860 Expired - Lifetime US3079047A (en) 1960-01-26 1960-01-26 Activator for reserve-type electrochemical batteries

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US3416548A (en) * 1966-02-14 1968-12-17 Bendix Corp High pressure release valve
US3613944A (en) * 1969-12-05 1971-10-19 Gen Motors Corp Sensor and fragmentizable glass means for releasing a penetrator
US3596799A (en) * 1969-12-05 1971-08-03 Gen Motors Corp Fragmentizable glass means for sensor and releasing a penetrator
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Also Published As

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US3079047A (en) 1963-02-26
US3075035A (en) 1963-01-22
GB930327A (en) 1963-07-03

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