US2972998A - Explosive operated valve - Google Patents
Explosive operated valve Download PDFInfo
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- US2972998A US2972998A US595566A US59556656A US2972998A US 2972998 A US2972998 A US 2972998A US 595566 A US595566 A US 595566A US 59556656 A US59556656 A US 59556656A US 2972998 A US2972998 A US 2972998A
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- valve
- chamber
- diaphragm
- cutter
- passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off
- F16K13/04—Other constructional types of cut-off apparatus; Arrangements for cutting-off with a breakable closure member
- F16K13/06—Other constructional types of cut-off apparatus; Arrangements for cutting-off with a breakable closure member constructed to be ruptured by an explosion
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- 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
- Y10T137/1647—Explosive actuation
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- 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 an explosively operated valve and more particularly to an explosively operated valve in which the need of a retaining element for maintaining the valve in an open position does not arise.
- retaining devices of the detent or engagingly-locking type were employed to maintain the valve in open position after the force of expansive gases produced by the explosive charge were expended. These retaining devices not only add to the cost of manufacture of this type valve but also obstruct the flow of the fluid passing therethrough. Furthermore, in order not to impede the movement of the valve-opening plunger and yet cooperate therewith upon completion of the valve-opening function, these retaining devices are of necessity of a complex character with respect to the cooperatively interlocking elements. Due to this complexity, great care must be exercised during the manufacture of the valve to properly arrange and align the components thereof so that the interlocking elements are in registry when the valve is in the open position. This type of device does not readily lend itself to mass production techniques and is subject to failure due to the complex nature thereof.
- the general purpose of this invention is to provide a novel explosively operated valve which assures uninterrupted fluid flow upon opening of the valve and which does not employ, nor require, a retaining device for maintaining the valve open.
- a new and improved valve which will open instantaneously upon detonation of an explosive charge and which remains open regardless of the relative positioning of the valve actuating members.
- Detonation of the explosive charge creates a pressure above a piston linked with a valve body having a cutter in the forward end, the pressure propelling the piston to drive the cutter through a frangible diaphragm which formed a seal between a pair of fluid passages connected to the valve.
- a continuous internal passage emerging in two spaced ports which are so disposed as to provide fluid communication between the pair of fluid passages for all positions which the valve body may assume in the valve.
- Another object is to provide an explosively operated valve which does not require a retaining device to maintain it in an open position.
- a primary object is to provide an explosively operated ice valve which, once opened, remains open regardless of the relative positioning of the valve actuating members.
- an open-ended cylindrical metal casing generally denoted by reference numeral 10 and having an axially cylindrical forward chamber 12 and an enlarged axially cylindrical rear chamber 14, is sealed at the rear end by a metal cap 16 threaded there on and housing an electrically ignited explosive charge 17 within a recess 18, conductors 11 and 13 supplying the ignition potential to the charge through a bore 19 in cap 16.
- the explosive charge is shown in adjacency to a gas expansion chamber 20 positioned at the extreme rear of the rear chamber and above the movable valve member which comprises a metal piston 22 having a piston head 24 and an annular guide flange 26, the piston head 24 being machined to bear on the walls of chamber 14 while the guide flange 26 bears on the walls of chamber 12 as the piston is propelled forward by the spontaneous expansion of gases in chamber 20 due to detonation of explosive charge 18.
- annular shoulder formed integrally with the walls of chamber 12 may be employed as a piston guide bearing.
- annular flange or annular shoulder may be disregarded since the piston head 24 provides adequate guide bearing with the walls of chamber 14 as to make it unnecessary to employ additional guide means. It will be understood that the general principle of construction of the valve is unaltered if the valve is horizontal, or inclined, or operated vertically downward or upward.
- An annular packing gland 28, such for example as rubber'gasket is seated in a shoulder 29 at the junction of chambers 12 and 14 and co-mpressingly locked thereagainst by a metal ring 30 screwed in conforming threads on the walls of chamber 14.
- the packing gland 28 serves the dual purpose of sealing chamber 14 from the fluid in chamber 12 and of frictionally retaining piston 22 in cocked position.
- a cylindrical metal valve body 32, having a frusto-conical end portion 34 defining a cutting edge 35, is either formed integrally with the piston or is threaded thereon as shown.
- a frangible metallic diaphragm 45 having a central concavo-convex portion circumferentially bounded by a planar annular portion, is positioned with the planar annular portion thereof supercoincidently abutting the annular face of the open end of casing 10.
- a diaphragm formed in the aforedescribed manner facilitates the puncturing thereof by cutting edge 35, it is to be understood that a planar diaphragm could be elfectively employed without deleteriously affecting the function of the valve.
- a coupler 47 threaded on casing 10, rigidly secures diaphragm 45 by means of a hardened metal ring 49 to thereby seal chamber 12.
- a hollowed with hollowed out portion 5 It is apparent from an examination of the drawing that diaphragm 45 forms a seal between inlet and outlet ports 4-2 and S2, respectively and is adapted upon perforation thereof by valve body 32 to provide communication therebetween through internal passages 37, 39, and 40. p
- piston 22 and casing are so proportioned with respect to the associated components that, when the frusto co'nical portion 34 is in abutment with the 'frusto-conicalface 51 as shown by the dashed lines, the base of piston head 24 does not quite abut the upper face of ring 30 as also shown in dashed lines. Also,-the transverse bores, 39 and 40, 'are'so spaced from cutting edge '55 that, when valve body 32 is in the forward or dashed line position, bores 39 and 40 remain in chamber 12 above diaphragm 45.
- the valve of the present invention is suitable for use "in connection with the passage of gas, water or other fluids under very high pressure, the thickness of diaphragm 45 being determined by the pressure utilized.
- An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an'explosive comprising a casing having a chamber in communication with said pair of fluid passages, a frangible diaphragm in said chamber forming a seal between said passages, a valve body having a cutter at the forward end thereof and slideably mounted in said chamber to rupture said diaphragm when driven to a forward position, said valve body having internal passages therein with inlet and outlet orifices for permitting fluid communication between said fluid passages upon rupture of said diaphragm, said body having an external conical surface at the forward end thereof and an internal coaxial bore forming one of said internal passages and intersecting said conical surface, a cutting edge of said cutter formed by the intersection of said bore and said conical surface, explosively responsive means for drivingsaid body to said forward position through said diaphragm, and stop means limiting forward travel of said cutter to said forward position, said fluid passages being so disposed that when the cutter is in said forward position fluid communication is
- An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an explosive comprising a casing having a pair of apertures each adapted to be connected to an individual fluid passage, means forming a chamber in said casing for permitting fluid communication therewithin between said apertures, 21 frangible metal diaphragm so disposed in said chamber as to block fluid communication between said apertures, a valve body having a cutter at the forward end thereof and slidably mounted in said chamber to perforate said diaphragm when driven to a forward position, said valve body having passages therein with inlet andoutle't orifices for permitting fluid communication between said apertures upon perforation of said diaphragm, said valve body having 'an external frusto-conical surface at the forward end thereof and an internal coaxial bore forming one of said passages and intersecting said frustoconica l surface, said cutter formed by the intersection of said bore and said frusto-conical surface, normally immobile driving means effective upon actu
- An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an explosive comprising a cylindrical casing having a pair of mutually spaced apertures each adapted to be connected to an individual fluid passage, means forming a chamber in said casing for permitting fluid communication therewithin between said apertures, a perforable metal diaphragm so disposed in said chamber as to block fluid communication between saidap'er'tures, a valve body having a tapered end portion defining a coaxially cutting edge, said body being axially slidable in said chamber with said cutting edge in face adjacency to said diaphragm, a bore entering said body'at said cutting edge and passing lengthwise part way through said body, a diverging continuation of said bore emerging from the side of said body, explosively actuable means for driving said cutting edge through said diaphragm to thereby permit fluid communication between said apertures, said fluid communication being consummated at least in part through the continuous bore in said body.
- stop means limiting forward travel of said cutter to said forward position, said fluid passages being so disposed that when the cutter is in said forward position fluid communication is established between said passages.
- said stop means comprising a coaxially tapered shoulder forming a seat for the forward end of said valve body and engageable by said tapered end portion of the valve body to bring the cutter to rest when the cutter has traveled to said forward position.
- An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an explosive comprising a casing having a chamber inthe forward end thereof and incom'munication with said fluid passages, afrangible diaphragmin said chamber forminga seal between said-passages, a
- valve body having a cutter in face adjacency to said diaphragm and axially slidable in said chamber to perforate said diaphragm when driven forwardly, said body having continuous internal passages emerging in mutually spaced orifices in said body for permitting fluid communication therethrough between said fluid passages upon perforation of said diaphragm, said valve body having an external frusto-conical surface at the forward end thereof and a coaxial bore forming one of said internal passages intersecting said frustoconical surface, said cutter formed by the intersection of said bore and said frusto-conical surface, a piston rearwardly disposed in said casing for axial movement therein, said piston engaging said body and being adapted under influence of an explosive force to drive said body forwardly through said diaphragm, and stop means limiting forward travel of said cutter to said forward position, said fluid passages being so disposed that when the cutter is in said forward position fluid communication is established between said passages, said stop means comprising a f
- An explosive operated valve comprising a cylindrical casing having a forward cylindrical chamber, a transverse fluid inlet passage in the side of said casing in communication with said chamber, an axial fluid outlet passage in the forward end of said casing and in communication with said chamber, a perforable diaphragm transversely disposed in said chamber to form a seal between the inlet and outlet passages, a valve body having a tapered end portion defining a coaxially cutting edge,
- said body being axially slideable in said chamber through said diaphragm to a forward position and being initially positioned adjacent said inlet passage with the cutting edge in face adjacency with said diaphragm, an axial bore entering said body at said cutting edge and passing lengthwise part way through said body, transverse bores in the side of said body in communication with said axial bore, said transverse bores being so disposed on said body as to remain rearwardly of said diaphragm when the body is in said forward position, stop means at said forward position to provide a seat for said end portion of said valve body, said stop means comprising a shoulder portion having a coaxially disposed taper, and explosively actuable means for axially driving said body to said forward position through said diaphragm to thereby provide fluid communication between said passages, said fluid communication being consummated at least in part through said axial and transverse bores in said body.
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Description
1961 R. L. DETWILER 2,972,998
EXPLOSIVE OPERATED VALVE Filed July 2, 1956 ZNVENTOR R. L. DETWILER BY X 4%;
United States Patent (Granted under Title 35, US. Code (1952), see. 266) This invention may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
The present invention relates to an explosively operated valve and more particularly to an explosively operated valve in which the need of a retaining element for maintaining the valve in an open position does not arise.
In prior explosively operated valves, retaining devices of the detent or engagingly-locking type were employed to maintain the valve in open position after the force of expansive gases produced by the explosive charge were expended. These retaining devices not only add to the cost of manufacture of this type valve but also obstruct the flow of the fluid passing therethrough. Furthermore, in order not to impede the movement of the valve-opening plunger and yet cooperate therewith upon completion of the valve-opening function, these retaining devices are of necessity of a complex character with respect to the cooperatively interlocking elements. Due to this complexity, great care must be exercised during the manufacture of the valve to properly arrange and align the components thereof so that the interlocking elements are in registry when the valve is in the open position. This type of device does not readily lend itself to mass production techniques and is subject to failure due to the complex nature thereof.
The general purpose of this invention is to provide a novel explosively operated valve which assures uninterrupted fluid flow upon opening of the valve and which does not employ, nor require, a retaining device for maintaining the valve open.
In accordance with the invention, a new and improved valve is provided which will open instantaneously upon detonation of an explosive charge and which remains open regardless of the relative positioning of the valve actuating members. Detonation of the explosive charge creates a pressure above a piston linked with a valve body having a cutter in the forward end, the pressure propelling the piston to drive the cutter through a frangible diaphragm which formed a seal between a pair of fluid passages connected to the valve. Arranged within the valve body is a continuous internal passage emerging in two spaced ports which are so disposed as to provide fluid communication between the pair of fluid passages for all positions which the valve body may assume in the valve. By the provision of this continuous internal passage, continuous fluid communication between the fluid passages is assured without employing unreliable and complex valve-opening retaining devices.
With the foregoing in mind, it is an object of the present invention to provide a new and improved explosively operated valve which is positive in operation, simple in construction, and inexpensive to manufacture.
Another object is to provide an explosively operated valve which does not require a retaining device to maintain it in an open position.
A primary object is to provide an explosively operated ice valve which, once opened, remains open regardless of the relative positioning of the valve actuating members.
The exact nature of this invention as well as other objects and advantages will be readily apparent from consideration of the following specification relating the annexed drawing in which the figure is a sectional elevation of the valve in the closed position, the dotted configurations indicating the positioning of the cutter and piston head when driven forwardly by detonation of a small explosive charge.
Referring to the drawing, an open-ended cylindrical metal casing, generally denoted by reference numeral 10 and having an axially cylindrical forward chamber 12 and an enlarged axially cylindrical rear chamber 14, is sealed at the rear end by a metal cap 16 threaded there on and housing an electrically ignited explosive charge 17 within a recess 18, conductors 11 and 13 supplying the ignition potential to the charge through a bore 19 in cap 16. The explosive charge is shown in adjacency to a gas expansion chamber 20 positioned at the extreme rear of the rear chamber and above the movable valve member which comprises a metal piston 22 having a piston head 24 and an annular guide flange 26, the piston head 24 being machined to bear on the walls of chamber 14 while the guide flange 26 bears on the walls of chamber 12 as the piston is propelled forward by the spontaneous expansion of gases in chamber 20 due to detonation of explosive charge 18. I
In lieu of flange 26, an annular shoulder formed integrally with the walls of chamber 12 may be employed as a piston guide bearing. Alternatively, use of an annular flange or annular shoulder may be disregarded since the piston head 24 provides suficient guide bearing with the walls of chamber 14 as to make it unnecessary to employ additional guide means. It will be understood that the general principle of construction of the valve is unaltered if the valve is horizontal, or inclined, or operated vertically downward or upward.
An annular packing gland 28, such for example as rubber'gasket is seated in a shoulder 29 at the junction of chambers 12 and 14 and co-mpressingly locked thereagainst by a metal ring 30 screwed in conforming threads on the walls of chamber 14. The packing gland 28 serves the dual purpose of sealing chamber 14 from the fluid in chamber 12 and of frictionally retaining piston 22 in cocked position. A cylindrical metal valve body 32, having a frusto-conical end portion 34 defining a cutting edge 35, is either formed integrally with the piston or is threaded thereon as shown.
An axial bore 37, entering the valve body 32 at the cutting edge 35, is in communication with a pair of transverse bores 39 and 40, it being understood that any number of such transverse bores may be utilized. A transverse inlet port 42, having a threaded portion 44 for receiving the fitting of an inlet fluid conduit, is provided in the Walls of casing 10 in adjacency to chamber 12 to supply fluid thereto. It is to be noted that fluid entering chamber 12 also flows through bores 37, 39, and 40 which form a continuous passage internally of valve body 32.
A frangible metallic diaphragm 45, having a central concavo-convex portion circumferentially bounded by a planar annular portion, is positioned with the planar annular portion thereof supercoincidently abutting the annular face of the open end of casing 10. Although a diaphragm formed in the aforedescribed manner facilitates the puncturing thereof by cutting edge 35, it is to be understood that a planar diaphragm could be elfectively employed without deleteriously affecting the function of the valve. A coupler 47, threaded on casing 10, rigidly secures diaphragm 45 by means of a hardened metal ring 49 to thereby seal chamber 12. A hollowed with hollowed out portion 5: It is apparent from an examination of the drawing that diaphragm 45 forms a seal between inlet and outlet ports 4-2 and S2, respectively and is adapted upon perforation thereof by valve body 32 to provide communication therebetween through internal passages 37, 39, and 40. p
The length of piston 22 and casing are so proportioned with respect to the associated components that, when the frusto co'nical portion 34 is in abutment with the 'frusto-conicalface 51 as shown by the dashed lines, the base of piston head 24 does not quite abut the upper face of ring 30 as also shown in dashed lines. Also,-the transverse bores, 39 and 40, 'are'so spaced from cutting edge '55 that, when valve body 32 is in the forward or dashed line position, bores 39 and 40 remain in chamber 12 above diaphragm 45. In this manner, if body valve 32 remains in the dashed line position, communi cation between inlet 42 and outlet 44 is provided through bores 39 and 4t and axial bore 37. In the event body valve 32 rebounds from frusto-conical face 51 'due to "impact therewith when driven forward upon detonation of the explosive charge, body valve 32 will float in chamber 12, and communication between ports 42 and 52 will be effected directly through the perforated diaphragm 4'5 and partially through the bores 39, 4t) and 37. Of
"course, if annular guide flange 26 is employed, it is so positioned as to be above port 42 when tapered portion '34 is in abutment with face 51, otherwise flange 26 will block the flow of fluid from port 42 to chamberlZ.
The valve of the present invention is suitable for use "in connection with the passage of gas, water or other fluids under very high pressure, the thickness of diaphragm 45 being determined by the pressure utilized.
In operation, when the explosive charge 17 has been fired, the spontaneous expansion ofgases in chamber 2% drives the piston 22 downward to thereby puncture diaphragm 45 whereby communication between ports 42 and S2 is effected in either of the aforedescribed manners, depending on whether face 34 remains in abutment with face 51 due to friction between the sheared edges of diaphragm 45 with valve body 32 or whether valve body 32 rebounds and floats in chamber 12.
I Various modifications are contemplated and may obviously be resorted to by those skilled in the art without departing from the spirit and scope of the invention.
What is claimed as new and desired to be secured by Letters Patent of the United States is:
1. An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an'explosive comprising a casing having a chamber in communication with said pair of fluid passages, a frangible diaphragm in said chamber forming a seal between said passages, a valve body having a cutter at the forward end thereof and slideably mounted in said chamber to rupture said diaphragm when driven to a forward position, said valve body having internal passages therein with inlet and outlet orifices for permitting fluid communication between said fluid passages upon rupture of said diaphragm, said body having an external conical surface at the forward end thereof and an internal coaxial bore forming one of said internal passages and intersecting said conical surface, a cutting edge of said cutter formed by the intersection of said bore and said conical surface, explosively responsive means for drivingsaid body to said forward position through said diaphragm, and stop means limiting forward travel of said cutter to said forward position, said fluid passages being so disposed that when the cutter is in said forward position fluid communication is established between said passages, said stop means comprising a conical shoulder portion providing a seat for said valve body and engageable by said conical-surface to bring the cutter to rest when the cutter has traveled to said forward position.
2. An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an explosive comprising a casing having a pair of apertures each adapted to be connected to an individual fluid passage, means forming a chamber in said casing for permitting fluid communication therewithin between said apertures, 21 frangible metal diaphragm so disposed in said chamber as to block fluid communication between said apertures, a valve body having a cutter at the forward end thereof and slidably mounted in said chamber to perforate said diaphragm when driven to a forward position, said valve body having passages therein with inlet andoutle't orifices for permitting fluid communication between said apertures upon perforation of said diaphragm, said valve body having 'an external frusto-conical surface at the forward end thereof and an internal coaxial bore forming one of said passages and intersecting said frustoconica l surface, said cutter formed by the intersection of said bore and said frusto-conical surface, normally immobile driving means effective upon actuation thereof to drive said body and cutter to said forward position through said diaphragm, electrical explosive means for actuating said driving means upon detonation thereof, and'stop means limiting forward travel of said cutter to said forward position, said fluid passages being so disposed that when the cutter is in said forward position fluid communication is estab lis'hed between said passages, said stop means comprising a conical shoulder portion providing a seat for said valve body and engageable by said frusto-conical surface to bring the cutter to rest when the cutter has traveled to said forward position.
3. An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an explosive comprising a cylindrical casing having a pair of mutually spaced apertures each adapted to be connected to an individual fluid passage, means forming a chamber in said casing for permitting fluid communication therewithin between said apertures, a perforable metal diaphragm so disposed in said chamber as to block fluid communication between saidap'er'tures, a valve body having a tapered end portion defining a coaxially cutting edge, said body being axially slidable in said chamber with said cutting edge in face adjacency to said diaphragm, a bore entering said body'at said cutting edge and passing lengthwise part way through said body, a diverging continuation of said bore emerging from the side of said body, explosively actuable means for driving said cutting edge through said diaphragm to thereby permit fluid communication between said apertures, said fluid communication being consummated at least in part through the continuous bore in said body. and stop means limiting forward travel of said cutter to said forward position, said fluid passages being so disposed that when the cutter is in said forward position fluid communication is established between said passages. said stop means comprising a coaxially tapered shoulder forming a seat for the forward end of said valve body and engageable by said tapered end portion of the valve body to bring the cutter to rest when the cutter has traveled to said forward position.
4. An explosive operated valve for permitting fluid communication between a pair of fluid passages upon detonation of an explosive comprising a casing having a chamber inthe forward end thereof and incom'munication with said fluid passages, afrangible diaphragmin said chamber forminga seal between said-passages, a
rearwardly extending valve body having a cutter in face adjacency to said diaphragm and axially slidable in said chamber to perforate said diaphragm when driven forwardly, said body having continuous internal passages emerging in mutually spaced orifices in said body for permitting fluid communication therethrough between said fluid passages upon perforation of said diaphragm, said valve body having an external frusto-conical surface at the forward end thereof and a coaxial bore forming one of said internal passages intersecting said frustoconical surface, said cutter formed by the intersection of said bore and said frusto-conical surface, a piston rearwardly disposed in said casing for axial movement therein, said piston engaging said body and being adapted under influence of an explosive force to drive said body forwardly through said diaphragm, and stop means limiting forward travel of said cutter to said forward position, said fluid passages being so disposed that when the cutter is in said forward position fluid communication is established between said passages, said stop means comprising a frusto-conical shoulder portion engageable by said frusto-conical surface to bring the cutter to rest and to provide a seat for said valve body when the cutter has traveled to said forward position.
5. An explosive operated valve comprising a cylindrical casing having a forward cylindrical chamber, a transverse fluid inlet passage in the side of said casing in communication with said chamber, an axial fluid outlet passage in the forward end of said casing and in communication with said chamber, a perforable diaphragm transversely disposed in said chamber to form a seal between the inlet and outlet passages, a valve body having a tapered end portion defining a coaxially cutting edge,
said body being axially slideable in said chamber through said diaphragm to a forward position and being initially positioned adjacent said inlet passage with the cutting edge in face adjacency with said diaphragm, an axial bore entering said body at said cutting edge and passing lengthwise part way through said body, transverse bores in the side of said body in communication with said axial bore, said transverse bores being so disposed on said body as to remain rearwardly of said diaphragm when the body is in said forward position, stop means at said forward position to provide a seat for said end portion of said valve body, said stop means comprising a shoulder portion having a coaxially disposed taper, and explosively actuable means for axially driving said body to said forward position through said diaphragm to thereby provide fluid communication between said passages, said fluid communication being consummated at least in part through said axial and transverse bores in said body.
References Cited in the file of this patent UNITED STATES PATENTS 1,781,027 Mapes Nov. 11, 1930 1,781,854 Mapes Nov. 18, 1930 2,059,189 Allen Nov. 3, 1936 2,149,659 Bettis Mar. 7, 1939 2,515,068 Young July 11, 1950 2,661,804 Haessler Dec. 8, 1953 2,815,882 Connell Dec. 10, 1957 FOREIGN PATENTS 7 55,223 France May 23, 1951 877,390 Germany May 21, 1953
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US595566A US2972998A (en) | 1956-07-02 | 1956-07-02 | Explosive operated valve |
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US595566A US2972998A (en) | 1956-07-02 | 1956-07-02 | Explosive operated valve |
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US2972998A true US2972998A (en) | 1961-02-28 |
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US595566A Expired - Lifetime US2972998A (en) | 1956-07-02 | 1956-07-02 | Explosive operated valve |
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US3092286A (en) * | 1960-11-28 | 1963-06-04 | Duff Philip | Explosive diaphragm valve |
US3101733A (en) * | 1961-07-14 | 1963-08-27 | United Aircraft Prod | Explosive valve |
US3141470A (en) * | 1961-04-21 | 1964-07-21 | Koehler Aircraft Products Comp | Valve assembly |
US3172684A (en) * | 1962-11-15 | 1965-03-09 | Isaac Peter | Safety belt apparatus for vehicles |
US3230704A (en) * | 1961-10-30 | 1966-01-25 | Thiokol Chemical Corp | Rocket engine |
US3431731A (en) * | 1967-09-27 | 1969-03-11 | Us Army | Poppet valve device |
US3744816A (en) * | 1971-04-23 | 1973-07-10 | Nissan Motor | Vehicular safety device |
US3749419A (en) * | 1970-05-04 | 1973-07-31 | Nissan Motor | Vehicular safety device |
US3780752A (en) * | 1971-03-01 | 1973-12-25 | Du Pont | Explosively actuated valve |
US3806153A (en) * | 1972-02-07 | 1974-04-23 | Olin Corp | Safety bag inflation for vehicles |
US3834729A (en) * | 1971-09-23 | 1974-09-10 | Nissan Motor | Sealing unit for pressurized gas generator of automotive safety device |
US3861712A (en) * | 1970-12-28 | 1975-01-21 | Nissan Motor | Apparatus for deflating an inflatable occupant restraint device |
US4970936A (en) * | 1988-11-21 | 1990-11-20 | Hughes Aircraft Company | Gas reservoir actuation device |
FR2720467A1 (en) * | 1994-05-27 | 1995-12-01 | Saint Louis Inst | Device allowing the rapid opening of a channel for gases under high pressure. |
US5720495A (en) * | 1996-01-16 | 1998-02-24 | Trw Vehicle Safety Systems Inc. | Air bag inflator with clamping ring for rupturable disk |
US20050011552A1 (en) * | 2002-01-17 | 2005-01-20 | Goran Sundholm | Valve element |
US20050072463A1 (en) * | 2002-01-17 | 2005-04-07 | Goran Sundholm | Valve element |
US20050103379A1 (en) * | 2002-04-19 | 2005-05-19 | Goran Sundholm | Valve element |
US20050205129A1 (en) * | 2004-03-11 | 2005-09-22 | Kidde-Fenwal Inc. | Method and apparatus for venting a pressure reservoir |
US20090314355A1 (en) * | 2008-04-25 | 2009-12-24 | Target Rock Division Of Curtiss-Wright Flow Control Corporation | Squib valve assembly |
US8561711B2 (en) | 2008-09-19 | 2013-10-22 | Kidde-Fenwal, Inc. | Dispensing valve and method for dispensing a fluid under pressure |
US9033306B2 (en) | 2011-03-18 | 2015-05-19 | Gaither Tool Company, Inc. | Rapid opening gas valve |
US9080832B2 (en) | 2013-05-09 | 2015-07-14 | Gaither Tool Company, Inc. | Quick-release valve air gun |
US20180347596A1 (en) * | 2015-11-14 | 2018-12-06 | Hydac Technology Gmbh | Safety device |
US10266019B2 (en) | 2011-03-18 | 2019-04-23 | Gaither Tool Company, Inc. | Rapid opening gas valve |
US11079037B2 (en) | 2017-11-21 | 2021-08-03 | Gaither Tool Company, Incorporated | Rapid opening gas valve |
US11273677B2 (en) | 2018-09-18 | 2022-03-15 | Gaither Tool Company, Inc. | Advanced rapid air release valve pneumatic tire seater |
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US3092286A (en) * | 1960-11-28 | 1963-06-04 | Duff Philip | Explosive diaphragm valve |
US3141470A (en) * | 1961-04-21 | 1964-07-21 | Koehler Aircraft Products Comp | Valve assembly |
US3101733A (en) * | 1961-07-14 | 1963-08-27 | United Aircraft Prod | Explosive valve |
US3230704A (en) * | 1961-10-30 | 1966-01-25 | Thiokol Chemical Corp | Rocket engine |
US3172684A (en) * | 1962-11-15 | 1965-03-09 | Isaac Peter | Safety belt apparatus for vehicles |
US3431731A (en) * | 1967-09-27 | 1969-03-11 | Us Army | Poppet valve device |
US3749419A (en) * | 1970-05-04 | 1973-07-31 | Nissan Motor | Vehicular safety device |
US3861712A (en) * | 1970-12-28 | 1975-01-21 | Nissan Motor | Apparatus for deflating an inflatable occupant restraint device |
US3780752A (en) * | 1971-03-01 | 1973-12-25 | Du Pont | Explosively actuated valve |
US3744816A (en) * | 1971-04-23 | 1973-07-10 | Nissan Motor | Vehicular safety device |
US3834729A (en) * | 1971-09-23 | 1974-09-10 | Nissan Motor | Sealing unit for pressurized gas generator of automotive safety device |
US3806153A (en) * | 1972-02-07 | 1974-04-23 | Olin Corp | Safety bag inflation for vehicles |
US4970936A (en) * | 1988-11-21 | 1990-11-20 | Hughes Aircraft Company | Gas reservoir actuation device |
FR2720467A1 (en) * | 1994-05-27 | 1995-12-01 | Saint Louis Inst | Device allowing the rapid opening of a channel for gases under high pressure. |
US5720495A (en) * | 1996-01-16 | 1998-02-24 | Trw Vehicle Safety Systems Inc. | Air bag inflator with clamping ring for rupturable disk |
US20050072463A1 (en) * | 2002-01-17 | 2005-04-07 | Goran Sundholm | Valve element |
US20050011552A1 (en) * | 2002-01-17 | 2005-01-20 | Goran Sundholm | Valve element |
US7140381B2 (en) * | 2002-01-17 | 2006-11-28 | Marioff Corporation Oy | Valve element |
US7143775B2 (en) * | 2002-01-17 | 2006-12-05 | Marioff Corporation Oy | Valve element |
AU2003201428B2 (en) * | 2002-01-17 | 2008-11-06 | Marioff Corporation Oy | Valve element |
US20050103379A1 (en) * | 2002-04-19 | 2005-05-19 | Goran Sundholm | Valve element |
US7143776B2 (en) * | 2002-04-19 | 2006-12-05 | Marioff Corporation Oy | Valve element |
US20050205129A1 (en) * | 2004-03-11 | 2005-09-22 | Kidde-Fenwal Inc. | Method and apparatus for venting a pressure reservoir |
US20090314355A1 (en) * | 2008-04-25 | 2009-12-24 | Target Rock Division Of Curtiss-Wright Flow Control Corporation | Squib valve assembly |
US8561711B2 (en) | 2008-09-19 | 2013-10-22 | Kidde-Fenwal, Inc. | Dispensing valve and method for dispensing a fluid under pressure |
US9033306B2 (en) | 2011-03-18 | 2015-05-19 | Gaither Tool Company, Inc. | Rapid opening gas valve |
US10266019B2 (en) | 2011-03-18 | 2019-04-23 | Gaither Tool Company, Inc. | Rapid opening gas valve |
US9080832B2 (en) | 2013-05-09 | 2015-07-14 | Gaither Tool Company, Inc. | Quick-release valve air gun |
US20180347596A1 (en) * | 2015-11-14 | 2018-12-06 | Hydac Technology Gmbh | Safety device |
US10697475B2 (en) * | 2015-11-14 | 2020-06-30 | Hydac Technology Gmbh | Safety device |
US11079037B2 (en) | 2017-11-21 | 2021-08-03 | Gaither Tool Company, Incorporated | Rapid opening gas valve |
US11273677B2 (en) | 2018-09-18 | 2022-03-15 | Gaither Tool Company, Inc. | Advanced rapid air release valve pneumatic tire seater |
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