US2291617A - Fluid medium dispensing apparatus - Google Patents

Description

Aug. 4, 1942. w. H. FREYGANG FLUID MEDIUM DISPENSING APPARATUS 2 Sheets-Sheet l Filed Dec. 29, 1959 auumsrm INVENTOR i /zany ATTORNEY w. H. FREYGANG, 2,291,517

FLUID MEDIUM DISPENSING APPARATUS I Filed Dec. 29, 1939 2 Sheets-Sheet 2 6 E zumnzm BULKHEAD ATTORNEY Patented Aug. 4, 1942 REE-S8115} FEB 121946 FLUID MEDIUM DISPENSING APPARATUS Walter H. Freyg ang, Essex Fells, N. 1., assignor to Specialties Development Corporation, Bloomfield, N. J a corporation of New Jersey Application December 29, 1939, Serial No. 311,579

example, and the invention is not to be limited 8 Claims.

This invention relates to portable fluid dispensing containers, and more particularly to containers adapted to be made a part of-a fixed fluid distributing system without impairing their utility as portable sources of fluid medium.

This type of apparatus isuseful in the fire extinguishing art, particularly in the case of small.

range fire extinguishing systems 'as used for example, on aircraft and motor vehicles. Ordinarily, a permanently located fire extinguishing conduitis provided which has suitable outlet nozzles in the vicinity of the hazard to be covered. A portable fire extinguisher is removably mounted at a place easily accessible to the operator and is conveniently connected to the distribution conduit so as to be easily disconnected from the conduit and to be used by the operator to dium therefrom to any desired location.

This does not present any special problem in connection with fire extinguishers other than those employing liquid carbon dioxide. The latter fluid, it has been found, does not attain its maximum extinguishing efllciency unless discharged through so-called directionaldischarge shields or horns, disclosed in United States Patent No. 1,760,274, which have been adopted quite generally in connection with carbon dioxide fire extinguishers. In applying portable carbon dioxide fire extinguishers to fixed conduits as described above, the requirements for the horn interferes with the ease of disconnecting and using the extinguisher with the horn as a portable extinguisher.

An object of this-invention is to provide a portable fire extinguisher which when connected to a fixed distribution conduit is an immediately available source of fluid medium therefor, and is also adapted to be quickly disconnected and to-be instantly used as a portable extinguisher, notwithstanding the requirement for a horn.

A further object is to provide a connection be tween a portable fire extinguisher .and a distribu-' tion conduit which will Dermit'the passage of fluid medium from the container into the conduit when the container is connected thereto. and into a discharge horn, permanently secured to the container, only when the container is disconnected fromthe conduit.

These and other objects will become apparent as the invention is described in greater detail in connection with the accompanying drawings, wherein the invention is shown applied to an aircraft. This merely serves as an illustrative direct the discharge of a fire extinguishing methereto.

In the drawings, Figure l is a fragmentary plan view of an air- 'plane, to which is applied a fire extinguishing system in accordance with th present invention.

stalled distribution conduit.

Figure 3 is a view similar to Figure 2, with the extinguisher shown disconnected from the conduit.

Figure 4 is an elevational view of the fire ex-" is connected to the conduit 3 by means of a discharge control member 6 and a wing nut I. The other side of the member 6 is connected to a discharge horn 8. 1

In Figure 2, an enlarged view is shown of the container 4 and the manner in which it is connected to the conduit 3. The discharge control member 6, which is of a T-foim, is screwed onto th outlet end of the valve 5, and is held in t placethereon by a set screw 9. A passage I 0 in the member 6 leads from the outlet of the valve 5 into a chamber ll formed in the member 6. A piston-like valve member H is reciprocably movable in the chamber and is formed on each side with oppositely positioned annular valve seats l5 and I6, which are adapted to seat on valve sealing washers l2 and I3, shown here as forming the top and bottom of the chamber II.-

A hollow tubular member ll projects from the valve member I! through a bushing l8 to the outside of the member 6 to operatively engage with aflared end 3| of conduit 3. The bushing I8 is threadedly secured onto one end of the memher 6 and at its inner end abuts the valve sealing washer l3. The wing nut 1 swivels over the flared end 3| of the conduit 3 and may be screwed onto one end of the member 6 to cause the piston-like valve member N to be forced toward the sealing washer l2 in opposition to a spring H, which is located in a recess 32 of the Figure 2 is a plan view, partially in section, of, a portable fire extinguisher connected to an inmember 6. In this position, suitable apertures in the tubular member l1 coincide with the passage 10, thereby forming an unobstructed passageway for the fluid medium flowing from the container 4 into the discharge conduit 3, as indicated by the arrow.

Figure 3 shows the wing nut l and the conduit 3 disconnected from the discharge control member 6. The spring I9 is here shown forcing the piston-like valve l4 from the washer l2 toward the washer l3. The passageway previously established through the tubular member I! toward the conduit 3 is now sealed off, while a passageway is established from the container 4 and the valve 5 via the passage M, the central opening in the sealing washer l2, an orifice 2|, and a passage 22in a nipple 23 leading toward and connected to the discharge horn 8.

The nipple 23 preferably is a rigid piece of tubing and, in order to permit its manipulation by the operaton is secured to the outlet end of the member 6, by means of a swivel joint. The swivel joint comprises a cap 24; a ring formed member 25; a packing 26, which isslipped over the end of nipple 23; and a second ring-formed member 21 threaded onto the free end of the nipple 23. A look nut 28 is placed over a sleeve-like outlet 33 of the member 6, whereupon the cap 24, upon being screwed in place, forces the members 25 and 21 together against the packing 26. This arrangement on the end of the nipple 23 forms a sealed bearing in the outlet 33, and permits the nipple to rotate in the socket thus formed. Thenipple itself is seated against a gasket 29, which has also the function of providing a friction surface in the socket, so that the nipple and horn will stay in the position to which they have been rotated.

In Figure 4, which is an elevational view of the portable fire extinguisher 4, there is shown a handle secured to the valve 5 for greater convenience in handling the extinguisher when used as a portable unit.

The operation of the apparatus described isv self-evident from its construction. .The appa ratus, as shown in Figure 2 upon manipulation of valve 5, will operate as a fixed extinguishing system, no discharge being possible through horn 3, at that time. Should a fire occur at a place on the airplane not covered by the fluid medium distributing tubing 2, the operator, by merely loosening the wing nut l and lifting the container 4 from its supportin the cockpit, is able upon opening of the valve 5, to direct the discharge of the fluid medium to any desired place by means of the swiveled discharge horn 8. As already apparent from the construction described above, disconnecting' of the container from the fixed conduit 3 causes the piston like valve member l4 to be forced from its washer I2 to establish communication from the conta ner 4 toward the born 8, and causes the valve member to be forced against its washer l3 to cut off communication toward the outlet llof the member 6 and'the fixed conduit 3. When the portable fire extinguisher is to be made a part of the fixed discharge system, the connective coupling of the container 4 through the member 6 to the conduit 3, by turning home the wing nut 1 over the free end of the member 6, causes the flared end 3| of the conduit to operatively engage the tubular member I'I projecting out of the free end of the member 6 and force the valve member 14 away from its washer l3 and toward its washer against the force of the spring I9, thereby establishing communication between invention that I have provided a convenient apparatus which almost instantaneously is alternatively' usable either as a portable or fixed fire extinguishing system without impairment of the full advantages and improvements that have been incorporated and that are necessary for the operation of the apparatus in either of the alternatives.

While I have shown the invention applied to cover a specific hazard and in a specific form, I

do not limit myself thereto, except as claimed in the following claims.

I claim:

'1. In a fire extinguishing apparatus, the combination of a conduit, :3. container releasably cone fining a fire extinguishing medium, two-way-outlet means operatively connected to the container and providing two discharge outlets therefor, valve means controlling said outlets associated with said outlet means normally closing one of the outlets, valve actuating means associated with said valve means, and means to couple said conduit to the normally closed outlet of said outlet means adapted to operatively engage said actuating means, whereby, upon application of said coupling means, the valve means is operated to open the normally closed outlet toward the conduit and to close the normally open outlet.

2. In a fire extinguishing apparatus, the combi nation of a fixed distribution conduit, a portable fire extinguishing medium container, two-wayoutlet means operatively connected to the container and providing two discharge outlets therefor, a double seating valve in said outlet means, spring means associated with said valve normally urging it to close one of said outlets, fluid medium discharge directing means secured to the normally open outlet, valve actuating means associatedwith said double seating valve, and means to couple said conduit to the normally closed outlet adapted to operatively engage said valve actuating means upon the coupling means being applied, whereby the valve, thus actuated against said spring means, operates to open the normally closed outlet, establishing an operative communication from the container to the conduit and closing the outlet normally open from the container to the discharge directing means.

3. For use with a conduit having conduitcoupling means, the combination of a portable fire extinguishing medium container, two-way-outlet means operatively connected to the container and providing two discharge outlets therefor, one of which is adapted for connective coupling to said conduit, valve means in said outlet means adapted to control said outlets normally closing the last named outlet, and valve actuating means associated with said valve means adapted for operative engagement by said conduit couplingthe container and providing two discharge out-- lets therefor, one of which is adapted for conwith said valve means normally urging said valve means to close said first and to open said second named outlet, and valve actuating means associated with said valve means adapted for operative engagement by said conduit coupling means, whereby, upon the application of said conduit coupling means to said first named outlet', the valve is actuated against said spring means to open the first and to close the second named outlet.

5. For use with a portable fire extinguishing apparatus, a double outlet coupling comprising a body having an inlet and two outlets, a double seating valve in said body adapted to control the communication from said inlet to said outlets, a spring in said body normally urging said valve to close one of the outlets, and valve actuating means on said valve constructed and arranged for operative engagement by a connective coupling means, whereby, upon the application said coupling means, the valve is actuated against said spring to open the normally closed outlet and to close the other outlet with respect to the inlet.

6. The combination of a fluid medium distribution conduit, a portable container releasably confining a fluid medium, fluid medium discharge controlling means secured to said container providing two outlets therefor, one of which is" adapted for connective coupling, valve means in said controlling means normally closing said last named outlet and opening the other outlet, valve actuating means on said valve means adapted .for operative engagement, and conduit coupling means on said conduit adapted to operatively engage said actuating means, whereby, upon application of said coupling means to the normally closed outlet of the controlling means, said valve means is actuated to open communication from the container to the conduit and to close communication from the container to the nor ed and arranged to control said outlets, spring" means in said body member adjacent said valve member normally urging it into closing position with respect to one of said outlets, and valve member actuating means having a substantially tubular portion on the side of said valve member nearest said normally closed outlet extending therethrough beyond said body member said portion having openings for communication with said inlet and adapted to form a part of said outlet.

8. For use with a conduit having coupling means, the combination of a container for a fluid medium, two-way-outlet means operatively connected to said container providing two discharge outlets therefor, a reciprocally movable double seating valve device associated with said outlet means normally closing one of said outlets and opening the other, and means for operating the valve device to shift the same to reverse its until said container is connected to said conduit.

WALTER H. FREYGANG.

Images