US2239816A - Fire extinguisher liquid pickup apparatus - Google Patents
Fire extinguisher liquid pickup apparatus Download PDFInfo
- Publication number
- US2239816A US2239816A US247269A US24726938A US2239816A US 2239816 A US2239816 A US 2239816A US 247269 A US247269 A US 247269A US 24726938 A US24726938 A US 24726938A US 2239816 A US2239816 A US 2239816A
- Authority
- US
- United States
- Prior art keywords
- cylinder
- coupling
- spud
- ducts
- bore
- 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
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
- A62C13/003—Extinguishers with spraying and projection of extinguishing agents by pressurised gas
Definitions
- a primary object of this invention is to provide pickup mechanism which is positioned within a portable, or hand operated re extinguisher cylinder or drum and functions to deliver liquid carbon dioxide, or the like, as distinguished from vapor or gas, to the immovably attached discharge nozzle of the extinguisher regardless of the position or angle in which the cylinder or drum is held in playing the medium upon'the flre.
- Figure 1 is a longitudinal sectional View of a portable cylinder or drum adapted to confine a fire extinguishing liquid under high pressure and illustrating the pickup mechanism embodying this invention
- Figure ⁇ 2 is ⁇ a fragmentary longitudinal sectional view of the liquid pickup mechanism of this invention.
- Figures 3 to 5, inclusive, are detail perspective views of certain structural elements which are employed as apart of the pickup mechanism disclosed in Figs. 1 and 2.
- the reference character 6 designates a cylinder or drum of suitable strength to confine a liquid under high pressure, such as carbon dioxide subject to temperature variations of the surrounding atmosphere;
- This cylinder or drum 6 is formed with an open throat or mouth 'I at one end. 'I'he remaining end of the cylinder or drum, preferably, is closed by an integral end.
- Figs. 1 and 2 clearly disclose the throat or mouth 1 as'having threaded therein a spud 8 which usually forms a part of or is associated with the discharge nozzle or mechanism of the cylinder or drum.
- This spud 8 is provided with a bore which includes the smooth surfaced portion 9, the enlarged smooth surfaced portion I 0, the threaded portion I I and the unthreaded extension I2 of the portion I I.
- a tubular coupling I3 is intended to be freely rotatably mounted in the bored portion of the spud 8.
- This coupling I3 includes the bore I4, the smooth surfaced cylindrical portions I5 and I6, and the enlarged peripheral flange Il.
- Fig, 2 clearly illustrates the outer portion of the cylindrical part I5 as extending into the smooth surfaced portion 9 of the spud bore.
- the enlarged peripheral flange I l is illustrated as being at least partially received within the smooth surfaced bore portion III.
- a metallic ring I8 is positioned within the smooth bore portion I0 and bears against one face of the coupling flange I1.
- a compressible packing material I9 is positioned inwardly of the ring I3 within the smooth surfaced bore portion I0.
- the compressible packing I9 will function as a seal between the spud 8 and the coupling I3 and will also function as a somewhat yieldable backing vfor the metallic ring I8 and the flange Il on the coupling.
- movement of the coupling I3 to the left of Fig. 2 in the bore of the spud will be resisted by the compressible packing I9 and such movement will function to compress the packing for increasing its sealing action.
- a clamping nut 20 is adjusted into the threaded portion II y of the spud bore. It will be appreciated that the clamping nut 20 should be adjusted to determine the extent of' freedom of'angular movement or swiveling motion of the coupling with respect to the spud.
- Figs. 1 to 3, inclusive disclose a connector block 21 which is suitably cored to form a system of ducts 22, 23 and 24.
- the ducts 22 and 24 extend longitudinally of the block while the duct 23 acts as a communicating branch between the two longitudinal ducts.
- the opposite end portions 0I of the duct 24 is enlarged, as at 21.
- the outer end i6 of the coupling I3 is intended to be received in the enlarged portion 25 of the duct 22 and is retained therein by a set screw 28 which enters an annular groove 29 formed in the periphery of the coupling.
- This set screw is intended to hold the block 2l against /movement relative to the coupling I3.
- 'I'he enlarged portion 26 of the duct 22 has fpositioned therein a guard ring 30 which is formed with the axially extending teeth or raised portions 3
- a rigid metal tube 32 Inserted partly within the remainder of the enlarged portion 26 of the duct 22 is the end of a rigid metal tube 32.
- the extremity of this tube is beveled at 33 to act as a seat for the loose, bronze ⁇ ball valve 34 which is positioned between the guard ring 30 and the valve seat extremity 33 of the tube 32.
- a set screw 35 is employed for holding the end of the tube 32 ⁇ withln the duct portion 26.
- a second connecting block 36 is provided and is suitably cored to form the duct portions, or system of ducts 31, 38 and 39.
- the duct 31 is enlarged at 40 for receiving the free end of the metallic tube 32. It will be appreciated that the bore of this tube 32 functions to establish cornmunication between the two systems of ducts formed in the blocks 2I and 36.
- a set screw 4I is employed for securing the end of the tube 32 within the duct enlargement 40.
- the duct 39 of the block 36 is enlarged at 42 for receiving an end of a flexible pickup or dip tube 43.
- This end of the tube is held in place by the set screw 44.
- the flexible dip tube 43 may be constructed in any desired manner from metallic or non-metallic material. It extends from the block 36 into the end portion of the cylinder or drum 6 which is provided with the discharge throat or mouth 1.
- a weighted ring 45 is mounted on the extremity of the exible tube 43 for retaining the receiving or inlet end of the tube 43 at .the lower side of the cylinder or drum 6, as illustrated in Fig. 2.
- Fig. 2 discloses a tube 46 extending into the eniarged duct portion 21 and being held therein by the set screw 41.
- Fig. 1 discloses this tube 46 as bent around the connecting block 36.
- this tube 46 is of rigid construction. Connected ⁇ to the outer end of the tube 46, as by means of a suitable coupling 48, is a section of exible tubing i3 which extends into the closed end of the cylinder or drum 6. A weighted ring 50 is suitably mounted on the extremity of the exible tube 49. rKluis tube, also, may be made of any suitable metallic or non-metallic material. The Weighted ring 50 will function to maintain the inlet end of the dip tube 49 in the lower portion of the cylinder or drum.
- the duct 22 are enlarged at 25 and 26.
- One endv When the cylinder or drum 6 is supported with its discharge end above the horizontal, liquid must be delivered to the discharge nozzle of the extinguisher from the closed end portion of the cylinder 6.
- the small valve 34 with the cylinder in the position just mentioned, falls by gravity against the valve seat 33 and prevents flow of gas through the dip tube 43, the series of ducts 31 to 39, inclusive, and the tube 32 into the bore of the coupling I3.
- liquid carbon dioxide is permitted to ow through the flexible pickup or dip tube 49, the tube 46 and the system or series of ducts 22 to 24, inclusive, into the bore of the coupling.
- liquid carbon dioxide When the cylinder or drum 6 is held with its axis extending truly horizontally, or substantially truly horizontally, liquid carbon dioxide will be fed through both of the dip tubes 43 and 49 to the coupling I6 by way of the ducts formed in the two blocks 2I and 36.
- the ball valve 34 When the closed end of the cylinder or drum 6 is held at a higher elevation or plane than the discharge end of the cylinder or drum, the ball valve 34 will be moved by gravity against the projections or teeth 3
- the supply of liquid carbon dioxide ⁇ then is picked up from the end of the cylinder or drum having the discharge throat or mouth 1 through the exible dip .tube 43 and is fed to the coupling I3 through the series of ducts 31 to 39, inclusive, formed in the block 36, and through the tube 32 into the duct 22 of the block 2
- the coupling will permit the pickup mechanism to draw liquid from the lowest portion of the cylinder or drum regardless of how or to what extent the cylinder or drum 6'may be rotated about its longitudinal axis.
- a cylinder capable of being supported with either of its ends above the horizontal and having a discharge passage at one of its ends, a. system of ducts connected to discharge through said discharge passage, a exible tube having one end extending into an end of the cylinder and its other end connected to said system of ducts, a gravity actuated check valve operating in said system of ducts and closing said system when the end of the cylinder which receives the end of the flexible tube is raised above the horiontal, a s'econd system of ducts connected with the discharge'passage at a podnt downstream of the connection with the first mentioned system of ducts, and a second flexible tube having one end extending into the remaining end of the cylinder and its other end connected to the second system of ducts, said second flexible tubeand its system o!
- a cylinder capable of being supported with either of its ends above the horizontal and having a discharge passage at one of its ends, a system of ducts having one of its ends coaxially connected to the discharge passage, a flexible tube having one end extending into the end of the cylinder having said discharge passage and its other end connected to said system oi ducts, a gravity actuated check valve operating in said system of ducts and closing said system when the end of the cylinder having said discharge passage is raised above the horizontal, a second system of ducts angularly connected wi-th the discharge passage at a point down-stream of the connectionv with the iirst mentioned system of ducts, and a second flexible tube having one end extending into the remaining end oi the cylinder and its other end connected to the second system of ducts, said second flexible tube and its system of ducts being so constructed as to always provide open communication between the discharge
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Description
assignor to Cardox Corporation, Chicago, Ill., a corporation of Illinois Application December 22, 1938, Serial No. 247,269
15 Claims.4 (Cl. 169-31) 'I'his invention relates to new and useful improvements in mechanism adapted to be used with portable, or hand operated, re extinguishers for the purpose of assuring delivery of liquid to the discharge nozzles of the same.
In using a re extinguisher, especially of the portable or hand operated type, it frequently is desirable to move the extinguisher from one position to another to apply the fire extinguishing medium more effectively as the flame travels and it is necessary to discharge onto the ilre the most dense type of stream obtainable.
A primary object of this invention is to provide pickup mechanism which is positioned within a portable, or hand operated re extinguisher cylinder or drum and functions to deliver liquid carbon dioxide, or the like, as distinguished from vapor or gas, to the immovably attached discharge nozzle of the extinguisher regardless of the position or angle in which the cylinder or drum is held in playing the medium upon'the flre.
Other objects and advantages of the invention will be apparent during the course of the following description.
In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate likeparts throughout the same,
Figure 1 is a longitudinal sectional View of a portable cylinder or drum adapted to confine a lire extinguishing liquid under high pressure and illustrating the pickup mechanism embodying this invention,
Figure` 2 is` a fragmentary longitudinal sectional view of the liquid pickup mechanism of this invention, and
Figures 3 to 5, inclusive, are detail perspective views of certain structural elements which are employed as apart of the pickup mechanism disclosed in Figs. 1 and 2.
In the drawings, wherein for the purpose of illustration is shown the preferred embodiment of this invention, and particularly referring to Fig. 1, the reference character 6 designates a cylinder or drum of suitable strength to confine a liquid under high pressure, such as carbon dioxide subject to temperature variations of the surrounding atmosphere; This cylinder or drum 6 is formed with an open throat or mouth 'I at one end. 'I'he remaining end of the cylinder or drum, preferably, is closed by an integral end.
Figs. 1 and 2 clearly disclose the throat or mouth 1 as'having threaded therein a spud 8 which usually forms a part of or is associated with the discharge nozzle or mechanism of the cylinder or drum. This spud 8 is provided with a bore which includes the smooth surfaced portion 9, the enlarged smooth surfaced portion I 0, the threaded portion I I and the unthreaded extension I2 of the portion I I.
A tubular coupling I3 is intended to be freely rotatably mounted in the bored portion of the spud 8. This coupling I3 includes the bore I4, the smooth surfaced cylindrical portions I5 and I6, and the enlarged peripheral flange Il. Fig, 2 clearly illustrates the outer portion of the cylindrical part I5 as extending into the smooth surfaced portion 9 of the spud bore. The enlarged peripheral flange I l is illustrated as being at least partially received within the smooth surfaced bore portion III. A metallic ring I8 is positioned within the smooth bore portion I0 and bears against one face of the coupling flange I1. A compressible packing material I9 is positioned inwardly of the ring I3 within the smooth surfaced bore portion I0.
It will be appreciated that the compressible packing I9 will function as a seal between the spud 8 and the coupling I3 and will also function as a somewhat yieldable backing vfor the metallic ring I8 and the flange Il on the coupling. In other Words, movement of the coupling I3 to the left of Fig. 2 in the bore of the spud will be resisted by the compressible packing I9 and such movement will function to compress the packing for increasing its sealing action. For the purpose of retaining the coupling within the bored portion of the spud 8 against outward movement into the interior of the cylinder or drum 6 and for determining the extent of movement of the coupling into the bore of the spud. a clamping nut 20 is adjusted into the threaded portion II y of the spud bore. It will be appreciated that the clamping nut 20 should be adjusted to determine the extent of' freedom of'angular movement or swiveling motion of the coupling with respect to the spud.
'I'he rotatably mounted coupling III is employed as a swiveling connection between the spud 8 and the pickup mechanism for the liquid carbon dioxide coniinedwithin the cylinder or drum 6. This pickup mechanism will be described as follows:
Figs. 1 to 3, inclusive, disclose a connector block 21 which is suitably cored to form a system of ducts 22, 23 and 24. The ducts 22 and 24 extend longitudinally of the block while the duct 23 acts as a communicating branch between the two longitudinal ducts. The opposite end portions 0I of the duct 24 is enlarged, as at 21.
The outer end i6 of the coupling I3 is intended to be received in the enlarged portion 25 of the duct 22 and is retained therein by a set screw 28 which enters an annular groove 29 formed in the periphery of the coupling. This set screw is intended to hold the block 2l against /movement relative to the coupling I3. 'I'he enlarged portion 26 of the duct 22 has fpositioned therein a guard ring 30 which is formed with the axially extending teeth or raised portions 3|. f
Inserted partly within the remainder of the enlarged portion 26 of the duct 22 is the end of a rigid metal tube 32. The extremity of this tube is beveled at 33 to act as a seat for the loose, bronze `ball valve 34 which is positioned between the guard ring 30 and the valve seat extremity 33 of the tube 32. A set screw 35 is employed for holding the end of the tube 32 `withln the duct portion 26.
A second connecting block 36 is provided and is suitably cored to form the duct portions, or system of ducts 31, 38 and 39. The duct 31 is enlarged at 40 for receiving the free end of the metallic tube 32. It will be appreciated that the bore of this tube 32 functions to establish cornmunication between the two systems of ducts formed in the blocks 2I and 36. A set screw 4I is employed for securing the end of the tube 32 within the duct enlargement 40.
The duct 39 of the block 36 is enlarged at 42 for receiving an end of a flexible pickup or dip tube 43. This end of the tube is held in place by the set screw 44. The flexible dip tube 43 may be constructed in any desired manner from metallic or non-metallic material. It extends from the block 36 into the end portion of the cylinder or drum 6 which is provided with the discharge throat or mouth 1. A weighted ring 45 is mounted on the extremity of the exible tube 43 for retaining the receiving or inlet end of the tube 43 at .the lower side of the cylinder or drum 6, as illustrated in Fig. 2.
Fig. 2 discloses a tube 46 extending into the eniarged duct portion 21 and being held therein by the set screw 41. Fig. 1 discloses this tube 46 as bent around the connecting block 36. Preferably,
this tube 46 is of rigid construction. Connected` to the outer end of the tube 46, as by means of a suitable coupling 48, is a section of exible tubing i3 which extends into the closed end of the cylinder or drum 6. A weighted ring 50 is suitably mounted on the extremity of the exible tube 49. rKluis tube, also, may be made of any suitable metallic or non-metallic material. The Weighted ring 50 will function to maintain the inlet end of the dip tube 49 in the lower portion of the cylinder or drum.
As has been stated heretofore, it may be necessary to hold a portable, r hand operated, fire extinguisher in many diierent positions to properly discharge the extinguishing medium on different res and different portions of hres located at different places and different elevations with respect to' .the person manipulating the extinguisher. As it is highly desirable to deliver liquid carbon dioxide to the discharge nozzle or mechanism of this type of extinguisher, it is nec- Y A A follows:
the duct 22 are enlarged at 25 and 26. One endv When the cylinder or drum 6 is supported with its discharge end above the horizontal, liquid must be delivered to the discharge nozzle of the extinguisher from the closed end portion of the cylinder 6. The small valve 34, with the cylinder in the position just mentioned, falls by gravity against the valve seat 33 and prevents flow of gas through the dip tube 43, the series of ducts 31 to 39, inclusive, and the tube 32 into the bore of the coupling I3. However, liquid carbon dioxideis permitted to ow through the flexible pickup or dip tube 49, the tube 46 and the system or series of ducts 22 to 24, inclusive, into the bore of the coupling.
When the cylinder or drum 6 is held with its axis extending truly horizontally, or substantially truly horizontally, liquid carbon dioxide will be fed through both of the dip tubes 43 and 49 to the coupling I6 by way of the ducts formed in the two blocks 2I and 36. When the closed end of the cylinder or drum 6 is held at a higher elevation or plane than the discharge end of the cylinder or drum, the ball valve 34 will be moved by gravity against the projections or teeth 3| of the guard ring 30. Liquid carbon dioxide, therefore, may pass around the valve 34. The supply of liquid carbon dioxide `then is picked up from the end of the cylinder or drum having the discharge throat or mouth 1 through the exible dip .tube 43 and is fed to the coupling I3 through the series of ducts 31 to 39, inclusive, formed in the block 36, and through the tube 32 into the duct 22 of the block 2|.
It will be appreciated that by swiveling the coupling I6 within the bore of the Spud 8, the coupling will permit the pickup mechanism to draw liquid from the lowest portion of the cylinder or drum regardless of how or to what extent the cylinder or drum 6'may be rotated about its longitudinal axis.
It is to be understood that the form of this invention herewithshown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claims. i
Having thus described the invention, I claim:
l. The combination with a fire extinguisher cylinder, of a bored spud mounted in the discharge mouth of the cylinder, a tubular coupling, means for mounting the coupling in the bore oi the spud for free angular movement relative thereto, and a dip tube extending into each end of the cylinder and connected to the coupling.
2. The combination with a fire extinguisher cylinder, of a bored spud mounted in the discharge mouth of the cylinder, a tubular coupling, means for mounting the coupling in the bore oi' the spud for free angular movement relative thereto, a dip tube extending into each end 0f the cylinder, and means for connecting said tubes to the tubular coupling, said last mentioned r means including a gravity actuated valve for controlling ow of uid through one of said tubes.
3. The combination with a re extinguisherv cylinder, of a bored spud mounted in the discharge mouth of the cylinder, a tubular coupling,
means for rotatably mounting the coupling in` cylinder, of a bored spud mounted in the discharge mouth of the cylinder, a tubular coupling, means for mounting the coupling in the bore of y the spud for free angular movement relative thereto, a cored block mounted on the coupling 5 to move therewith, and a pair of dip tubes connected to said block and extending into both ends o'f the cylinder.
5. The combination with a fire extinguisher cylinder, of a bored spud mounted in the 'dis- 10 charge mouth of the cylinder, a tubular coupling, means for rotatably mounting the couplingVVV in said spud b'ore, means for packing between the coupling and the spud, a cored block mounted on the coupling to move therewith, and a pair of l5 dip tubes connected to said block and extending into both ends of the cylinder.
`6. 'I'he combination with a nre extinguisher cylinder, of a bored spud mounted. in the discharge mouth of the cylinder, a tubular coupling,
means for mounting the coupling in the bore of the spud for free angular movement relative thereto, a cored block mounted on the coupling to move therewith, a pair of dip tubes connectedv to said block and extending into both ends of the v cylinder, and valve means in said block for controlling ow of'iluid through one of said tubes.
7. The combination with a iire extinguisher cylinder, of a bored spud detachably mounted in one end of the cylinder, a pair of flexible tubes arranged in the cylinder with one end of each of the tubes terminating in theopposite ends of the cylinder, weight means carried by said ends of the tube, and means for interconnecting the remaining ends of the tubes and for mounting said remaining ends with respect t0said"spud for swiveling movement about an axis extending longitudinally of the cylinder. 8. The combination `with a re extinguisher cylinder, of a bored spud detachably mounted in one end of the cylinder, a pair ofilexible tubes arranged in the cylinder with one end of each of the tubes terminating in the opposite ends of f the cylinder, weight means carried -by saidY ends of the tubes, a tubular coupling loosely extending into the bore of said spud, means for adjustably supporting said coupling in said bore for free angular movement, and means for interconnecting the remaining ends of the tubes and for attaching them to said coupling. Y
9. 'Ihe combinationv with a fire extinguisher cylinder, of a bored spud detachably mounted in one end of the cylinder, a pair of exible tubes arranged in the cylinder with one end of each f of the tubes terminating in the opposite endsv of the cylinder, weight means carried by said ends ofthe tubes, a tubular coupling loosely extend-A ing into the bore of said spud, means for adjustably supporting said coupling in said bore for free angular movement, said last mentioned 60 means comprising a peripheral iiange on the cou- ,Y
pling, a ring insaid bore and bearing against,
one face of said flange, compressible packing Y means in said bore surrounding said coupling and bearing against said ring, and an adjustable'cs clamp 'nut mounted in the spud bore and bearing against `the remaining face of said ange; and means for interconnecting the remaining ends of the tubes and forattaching them to said coupling.
10. The combination with a re extinguishery cylinder, of a bored spud detachably mounted in one end of the cylinder, a pair of exible tubes arranged in the cylinder with one end of each of the tubes terminating in the opposite endsof-the prising a peripheral flange on the coupling, a ring cylinder, weight means carried by said endsv of the tubes, a pair of blocks each of which is cored to provide a system of intercommunicating ducts,
tubular ,means for connecting said blocks and,A
placing the two systems of ducts in communication with each other, means for connecting the 'remaining ends ,of said flexible tubes one to each of said systems of ducts, and tubular coupling means mounted for angular movement in the spud bore and connected to one of said blocks with its bore in communication with the system oi' ducts formed in said block.
11. The combination-with a fire extinguisher' cylinder, of a bored spud detachably mounted in one end of the cylinder, a pair of iiexible tubes arranged in the`c'ylinder with one end of each of the tubes terminating in the opposite ends of the cylinder, weight means carried by said endsof the tubes, a pair of blocks each of which is cored to provide a system of intercommunicating ducts, tubular means for connecting said blocks and placing the two systems of ducts in communication with each other, gravity actuated valve Yarrangedin the cylinder with one end of each of the tubes terminating at the opposite ends of the cylinder, weight means carried by said ends of the tubes, a pair of blocks each of which is cored to provide a system of/fi'ntercommunicating ducts, tubular means for connecting said blocks and placing the twg/systems of ducts in l,communication ndthfeach other, means for connecting the remaining ends of said exible tubes one to each fof said systems of ducts, a tubular coupling |loosely extending into the bore of said spud and connected to one of said blocks with its bore in communication with the system of ducts formed in said block, and means for adjustably supporting said coupling inthe spud bore for free angular movement, said last mentioned means comin said Yborefbearing/ against `one face0f said flange, compressible packing means in said bore surrounding said coupling and bearing against:V
said ring, and an adjustable clamp nut mounted in the spud-bore and bearingagainst the remain;V
ing face of said flange.`
13, The combination with/adire extinguisher cylinder, of a bored spud detchably mounted in one end of the cylinder, a/pagrofrrfleidble tubes arrangedin the cylinder'witli/one end of each of the tubes terminating in the opposite ends of the cylinder, weight means carried by said ends 'nof the tubes, av pair of vblocks each of which is cored to provide a system of interoommunlcating ducts, tubular means for connecting-said blocks and placingthe two systems of ducts in communication with each other, gravity actuated valve means for controlling communication between the two systems through said tubular means,
means for connecting the remaining ends of said .flexible tubes one to each oi? said systems of ducts,
a. tubular coupling loosely extending into the bore of said spudand connectedto one of said blocks with its bore in communication Vwith the system of ducts formed in said block, 'and means for adjustably supporting said coupling in the spud bore for free angular movement.
14. In a portable re extinguisher, a cylinder capable of being supported with either of its ends above the horizontal and having a discharge passage at one of its ends, a. system of ducts connected to discharge through said discharge passage, a exible tube having one end extending into an end of the cylinder and its other end connected to said system of ducts, a gravity actuated check valve operating in said system of ducts and closing said system when the end of the cylinder which receives the end of the flexible tube is raised above the horiontal, a s'econd system of ducts connected with the discharge'passage at a podnt downstream of the connection with the first mentioned system of ducts, and a second flexible tube having one end extending into the remaining end of the cylinder and its other end connected to the second system of ducts, said second flexible tubeand its system o! ducts being so constructed as to always provide open communication between the discharge passage and 15. In a portable nre extinguisher, a cylinder capable of being supported with either of its ends above the horizontal and having a discharge passage at one of its ends, a system of ducts having one of its ends coaxially connected to the discharge passage, a flexible tube having one end extending into the end of the cylinder having said discharge passage and its other end connected to said system oi ducts, a gravity actuated check valve operating in said system of ducts and closing said system when the end of the cylinder having said discharge passage is raised above the horizontal, a second system of ducts angularly connected wi-th the discharge passage at a point down-stream of the connectionv with the iirst mentioned system of ducts, and a second flexible tube having one end extending into the remaining end oi the cylinder and its other end connected to the second system of ducts, said second flexible tube and its system of ducts being so constructed as to always provide open communication between the discharge passage and the end of the cylinder into which said second tube extends.
the end of the cylinder into which said second 25 tube extends.
HARRY ENSMINGER.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US247269A US2239816A (en) | 1938-12-22 | 1938-12-22 | Fire extinguisher liquid pickup apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US247269A US2239816A (en) | 1938-12-22 | 1938-12-22 | Fire extinguisher liquid pickup apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2239816A true US2239816A (en) | 1941-04-29 |
Family
ID=22934281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US247269A Expired - Lifetime US2239816A (en) | 1938-12-22 | 1938-12-22 | Fire extinguisher liquid pickup apparatus |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2239816A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124076A (en) * | 1977-08-18 | 1978-11-07 | Howard Robert E | Fire extinguisher |
-
1938
- 1938-12-22 US US247269A patent/US2239816A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4124076A (en) * | 1977-08-18 | 1978-11-07 | Howard Robert E | Fire extinguisher |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3251419A (en) | Valve apparatus for use with dry chemical fire extinguisher | |
| US5441113A (en) | Fire extinguishing system | |
| US2239816A (en) | Fire extinguisher liquid pickup apparatus | |
| US1040311A (en) | Air-supply device for firemen. | |
| US2559634A (en) | Dry powder fire-extinguisher apparatus | |
| US667840A (en) | Respirator. | |
| US2655219A (en) | Fire extinguisher discharge device | |
| US4394868A (en) | Horizontal discharge assembly for vertically oriented fire extinguisher | |
| US2684121A (en) | Fire extinguisher | |
| US1866981A (en) | Fire extinguisher container | |
| US865996A (en) | Mask. | |
| US2464268A (en) | Discharge valve for fire extinguishers | |
| US2219178A (en) | Fire extinguisher | |
| US3204698A (en) | Fire extinguisher having swivel outlet with detachable discharge horn | |
| US2001394A (en) | Fire extinguisher | |
| US2521193A (en) | Fire extinguishing system | |
| US4481933A (en) | Fire extinguishing attachment for chimney stacks | |
| US690633A (en) | Fire-extinguisher. | |
| US2589213A (en) | Nozzle for dry powder extinguishers | |
| JP3416841B2 (en) | Firefighting nozzle device | |
| CN209302077U (en) | A kind of spray gun of exchangeable nozzle | |
| US2238693A (en) | Fire extinguisher | |
| US2510861A (en) | Mobile fire extinguisher | |
| US2505413A (en) | Adjustable valve seal or the like | |
| US2084719A (en) | Fire extinguishing apparatus |