MXPA97000706A - Front handle of apreton percutor to use conextinguidores de incen - Google Patents

Abstract

A front grip striker discharge assembly for use with a fire extinguisher having an extinguishing medium under pressure therein includes a housing defining a flow chamber. The housing has a front portion and a rear portion configured to rest in the hand of a user, and a pivotable striker handle mounted to the housing and positioned in the front portion thereof. The pivotable hammer handle is set to be held by a user's fingers. The handle includes a pivot for turning the handle relative to the housing between a first position and a second position towards the housing to discharge the extinguishing medium from the extinguisher. The handle includes a discharge nozzle at the front of the housing and a discharge valve assembly operably connected to the striker handle to provide a flow path between the container and the discharge nozzle. The striker handle is pivotable from the first position to the unloading position towards the inside of the housing by holding the handle and pulling on it, ie by squeezing the handle by moving the unloading valve assembly to the unloading position. The housing also includes a nozzle stem that is adapted to interchangeably receive one of a plurality of different discharge nozzles to allow the use of the assembly with different types and sizes of fire extinguishers containing different types of extinguishing media, stored at various pressures.

Description

FRONT HANDLE OF GRIPPER PERCUTOR TO BE USED WITH EXTIN - FIRE GUIDES Field of the Invention This invention pertains to a firing handle of a fire extinguisher and more particularly to a fire extinguisher valve assembly with a front firing hammer handle. The assembly can be adjusted with one of a plurality of different discharge nozzles for use with different extinguisher bottles of different sizes having different extinguishing media under different pressures.

Background of the Invention Fire extinguishers are prevalent in commercial and residential facilities alike. Known fire extinguishers are available in a size and configuration arrangement for commercial and residential use, and can be designed to extinguish specific types of fires, such as Class A, Class B, and Class C fires. Fire extinguishers are available Residential or household appliances typically include a relatively small extinguisher bottle and a discard handle, specifically designed for the extinguisher bottle. The discharge handle may be of thumb-type actuator, a rear-grip handle actuator or a bottom-grip handle actuator. The handle is mounted directly to the extinguisher bottle, and the contents of the extinguisher bottle are discharged directly from the bottle through the handle. Due to the relatively small size of domestic fire extinguishers, it is generally not difficult to retain control of the extinguisher while it is being used. In the thumb-type actuated extinguisher, a user holds the handle and presses a button or discharge switch located on the top of the handle with the user's thumb to discharge the contents of the extinguisher. In the rear squeeze handle type actuator, the percussion or release mechanism is located on the back of the handle and requires the user to apply pressure to the back of the handle, usually with the palm hand, while maintaining control of the extinguisher bottle and aiming the extinguisher. Similarly, in the type of squeeze handle on the bottom of the extinguisher actuator, the user should apply - upward pressure, usually with the fingers, on the release mechanism, while maintaining control of the extinguisher. . The known commercial types of extinguishers are similar to residential types of extinguishers. The extinguisher handle is mounted directly to the bottle, with the discharge nozzle placed on the handle. Other known types of commercial extinguishers include a flexible hose mounted to the handle so that the discharge of the bottle can be more easily handled in the fire. Generally, any type of discharge bottle, such as a fire extinguisher, can be difficult to handle while unloading, and can be difficult to aim. In addition many of these extinguisher discharge assemblies must be designed specifically for the particular type of extinguisher and pressure, that is, the discharge assemblies can be designed specifically for the size of the bottle, the type of extinguishing medium and the low pressure. which is the means of exclusion. In this way, there continues to be a need for a fire extinguisher that has a flush and discharge assembly that provides maximum control and steering capability, ie, aiming the extinguisher while in use. Preferably, the whole set would easily allow the use of the extinguisher with different types of extinguishing media at different pressures.

SUMMARY OF THE INVENTION A front squeeze valve assembly for use with an associated fire extinguisher having a means of pressure therein includes a housing having a front portion and a rear portion configured to rest in the hand of the operator. an user. A hammer handle is fully mounted to the housing, positioned on the front portion of the same and is configured for engagement by the fingers of the user. The hammer handle pivots relative to the housing between a first storage position, and a second position for discharge of the extinguishing medium. The housing defines a flow chamber and includes a discharge nozzle positioned on the front of the housing. The flow chamber provides a flow path between the container and the discharge nozzle. A discharge valve assembly is located within the flow chamber and is operably connected to the firing pin handle. The valve assembly is actuated, ie, moved to the discharge position, by squeezing the firing handle toward the housing which, in turn, relocates the valve assembly to the open position to discharge the extinguishing medium. A nozzle rod extends from the flow chamber through the firing pin handle and is adapted to reciprocably receive one of a plurality of different discharge nozzles. Other features and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the accompanying clauses.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of an extinguisher valve assembly having a front squeeze hammer, shown with a bottle of fire extinguisher in shades, in accordance with the principles of the invention. present invention Figure 2 is a detailed perspective view of the valve assembly of Figure 1, illustrated with a safety release pin and an optional pressure dial type gauge; Figure 3 is a top plan view, shown partially broken away, of the valve assembly of Figure 1; Figure 4 is a side view, in partial cross section, taken along line 4-4 of figure 3, illustrating the discharge valve assembly and the front grip hammer, the firing pin being shown in the position closed in solid lines and in the open or unloading position of shadow lines, while the discharge valve assembly is illustrated only in the discharge position; Figure 5 is a side view of the assembled assembly a relatively large extinguisher bottle; Fig. 6 is a view similar to Fig. 5, illustrating the assembly assembled to a relatively small fire extinguisher bottle; Figure 7 is a partial front view of the assembly illustrating a discharge nozzle having a particular discharge port size; and Figure 8 is a view similar to Figure 7 illustrating a discharge nozzle having a different discharge port size.

Detailed Description of the Preferred Modalities Although the present invention is susceptible to shapes in various forms, it is shown in the drawings and will now describe a currently preferred embodiment with the understanding that the present disclosure should be considered as an embodiment of the invention. the invention and is not intended to limit the expiration to the specific embodiment illustrated. Figure 1 illustrates a fire extinguisher 10 which generally includes an extinguisher bottle 12, illustrated with shadow lines, and an assembly 14 with a squeeze hammer f. The bottle 12 is of the pressurized type for storing a fire extinguishing medium under pressure. It will be recognized by those skilled in the art that various types of extinguisher bottles can be used to store a disposal of extinguishing media, such as foam, dry chemical, and the like, the means of which can be classified to extinguish particular kinds of fire. Types of extinguisher are typically classified by hazard class: Class A, general purpose; Class B, Class C flammable liquids, electrical fires; and Class d, combustible metals All of the aforementioned types of extinguishing agents, including those not currently contemplated, are within the scope of the present invention. The assembly 14, best seen in Figure 2, includes a housing 16 having a front portion 18 and a rear portion 20. The assembly 14 is configured to be held by a user, with the rear portion 20 resting in the palm of the user's hand. The assembly 14 further includes a driver portion 21 mounted to the housing 16 in the front portion 18 thereof. The striker 22 is pivotally mounted to the housing 16 and is configured so that the extinguisher 10 is actuated by squeezing the hammer portion 22, or pulling inward on the hammer portion 22, towards the housing. In a preferred embodiment the striker 22 has a finger clamp formation 24 formed or molded towards the body of the striker portion 22 to facilitate clamping and control the extinguisher 10 when in use. In one embodiment, as best illustrated in Figures 2 and 4, the striker portion 22 includes a clamping portion 26 having the aforementioned finger clamp formation 24, and a lever portion 28 extending transversely., which extends rearward from the top of the fastening portion 26 toward the rear portion 20 of the housing 16. The firing portion 22 is pivotable about a pair of pivot pins 30 extending outwardly from the arm. 28 to the openings 32 formed in the rear housing portion 20. The assembly 14 can be adjusted with one of a plurality of different discharge nozzles 34 placed therein. The discharge nozzle 34 can be adapted for use with specific types of fire extinguishers, specific types of extinguishing media and fire extinguisher bottles. different size. Figure 4 illustrates the internal components and operation of the assembly 14. The housing 16 defines a flow chamber 36 that is in fluid flow communication with the extinguisher bottle 12. The chamber 36 provides flow communication for the extinguishing medium between the bottle 12 and the discharge nozzle 34. The flow chamber 36 includes a region of an intermediate valve valve 38 at the connection to the button 12 and the discharge nozzle 34. A discharge valve assembly, such as the spring-diverted discharge valve assembly 40, is positioned within the flow chamber 36 and is configured to initiate and terminate the flow of the extinguishing medium. The discharge valve assembly 40 includes a seal 42, such as an O-ring, which is adapted to couple the valve seat, in direct action and in positive response to the pressure acting on it from the extinguishing medium within. from the bottle 12 to the end of the f 1. Conversely, as illustrated in Figure 4 in solid lines, when the firing pin handle 22 is pulled or pulled inward towards the housing 16, the lever arm 28 is arching in a downward movement as illustrated at 43. The arm 28 of the lever engages the discharge valve 40 which, in turn, moves downward relative to the assembly 14, towards the bottle 12. The downward movement of the discharge valve assembly 40 moves the seal 42 out of the asynchronous seal 38. valve, and establishes a flow path, illustrated at 44, which initiates the flow of the extinguishing medium from the bottle 12 to the nozzle 3 When the fastening portion 26 is released, as illustrated in shadow lines in Figure 4, an airtight element 48, such as the illustrated coil spring, forces the discharge valve assembly 40 up (not shown). . As a result, the seal 42 is reset on the valve seat 38, thereby stopping the flow of the extinguishing medium. The discharge valve assembly 40 is retained in place in the flow chamber 36 by a retaining member 46 which can be press fit or otherwise adjusted in or connected to the chamber 36. The spring 48 is positioned between the discharge valve assembly 40 and the retaining member 46 to allow the deviated movement of the discharge valve assembly 40 and to divert the valve assembly 40 to the closed position. The discharge valve assembly 40 further includes an upper end seal 50, such as an O-ring seal for sealing the upper portion of the load valve assembly 40 when the assembly 40 is engaged by the lever arm 28. The assembly 14 may also include a pressure gauge, such as the exemplary type of pressure gauge 52 to provide visible indication of the pressure in the extinguisher. Other types and methods of pressure indication will be readily recognized by those experienced in the ram whose other types and methods of pressure indication are within the scope of the present invention. Optionally, the extinguisher 10 may also include a safety release pin 54, which pin 54 can be placed in the housing 16, co-figured to interfere with the movement of the str portion 22 to the unloading position until the pin 54 removes from it. The assembly 14 includes a threaded neck portion 56 disposed on the outer surface 58 of the housing 16 for threadably coupling the extinguisher bottle 12. The threaded neck portion is preferably configured to allow the use of the assembly 14 with a variety of fire extinguisher bottles 12 ', 12+ of different sizes, as illustrated in Figs. 5 and 6. In this manner, the assembly 14 provides an added benefit in that it is usable with different types and sizes of tinguidores. The assembly 14 may also include a downwardly extending protective portion 60 d that forms a portion of the housing 16. The protector 60 protects the flow chamber 36 and the discharge valve assembly 40, and reduces the opportunity for damage to them due to hitting or inadvertent shock of the extruder 10. The firing portion 22 has an opening 62 therein. A nozzle stem 64 extends at least through the opening 62. The rod 64 generally extends transverse to the flow chamber 36 and is in flow communication with it. The stem 64 can be adjusted with one of a plurality of different discharge nozzles 34. As best seen in Figures 7 and 8, the discharge nozzles 34 may have different sizes of discharge openings or ports 66, 66 '. The different sizes of openings 66, 66 'allow the use of assembly 14 with different types of extinguishing media, at different flow rates, and at a variety of pressures. The different sizes of port 66, 66 'of discharge provide different feathering characteristics of the flow stream of the extinguishing medium. As best seen in Figures 2 and 3, the shank 64 nozzle can include a plurality of shank members 68 positioned around the shank 64. The members 68 engage the holding receiver elements 70 formed in the nozzle 34, so that a Once the nozzle 34 slides toward the stem 64, the nozzle 34 can not be removed in normal use. In addition, from the fastening feature of the fastening members 68, the receiving elements 70, the members 68 and the elements 70 also provide positive alignment of the rod 64 with the nozzle 34., to ensure the proper functioning of the exinguidor 10. From the foregoing it will be noted that numerous modifications and variations can be made without departing from the true spirit and scope of the novel concepts of the present invention. It should be understood that no limitation should be inferred with respect to the specific modality illustrated. The exhibition is intended to cover, through the attached clauses, all the modifications that fall within the scope of the clauses.

Claims (9)

1. - A front gripper firing discharge assembly for use with an associated pressure vessel having a means pressurized therein, the discharge assembly comprising: a housing having a first portion and a second portion, the second portion configured for resting in the hand of a user, the housing defining a flow chamber and being mountable to the container; a pivotable striker handle mounted to the housing and positioned in the first portion thereof, the handle including at least one pivot for rotatably supporting the handle relative to the housing, wherein the handle is rotatable between a first closed position and a second position open into the housing; a discharge nozzle placed in the first portion of the housing adjacent to the firing pin handle and in flow communication with the chamber; and a discharge valve assembly operably connected to the striker handle and disposed in the chamber, the valve assembly being movable between a closed position and an open position, the open position providing a flow path between the container and the discharge nozzle, wherein the striker handle is biased toward the first closed position, and pivotable from the first position to the second open position by moving the striker handle toward the second portion of the housing, moving in this manner the discharge valve assembly to the open position for discharging the container medium through the discharge nozzle.

2. The front gripper firing discharge assembly of claim 1, wherein the housing includes a nozzle rod adapted to interchangeably receive one of a plurality of different discharge nozzles, the nozzle tip extending from and in communication d flow with the flow chamber.

3. The cold grip firing discharge assembly of claim 1, which further includes a safety release pin that can be attached to the housing, the safety release pin adapted to interfere with the movement of the firing pin handle. from the first position to the second position when the safety pin is placed in the housing.

4. The front grip striker discharge assembly of the rei indication '1, wherein the housing includes a threaded neck portion for threaded coupling of the receptacle.

5. The front gripper firing discharge assembly of claim 1, wherein the housing includes a guard adapted to cover at least a portion of the flow chamber and the valve assembly. 6, - The front squeeze hammer discharge assembly of the reviction 2, wherein the nozzle stem includes a plurality of clamping members for coupling the discharge bead. 7. The front grip firing discharge assembly of claim 6, wherein the fastening members are adapted to engage the discharge nozzle to align the discharge nozzle with the nozzle stem. 8. The front grip firing unloading assembly of claim 6, wherein the discharge nozzle includes a plurality of clamping receiver elements adapted to receive the clamping members. 9. The front squeeze striker discharge assembly of claim 1, wherein the striker handle includes a clamping portion and a lever arm generally transverse thereto, the clamping portion with housing being mounted at approximately the first portion thereof, the lever arm extending from the holding portion to the second portion of the housing, the lever arm having at least one pivot placed thereon, engageable with the second portion, and being configured to coact with the conjugate. Discharge valve to move the discharge valve assembly from the closed position to the open position when the handle is pivoted from the first position to the second position. 10.- The front grip firing discharge set of claim 9, wherein the holding portion defines an opening therein configured to receive at least a portion of the valve rod extending therethrough. 11. The front grip striker discharge assembly of claim 1, further including an indicator for indicating pressure within the container. 12.- A pressurized fire extinguisher that has a front squeeze hammer discharge assembly that comprises: a fire extinguisher container; and a fire extinguisher handle having a seat defining a flow chamber therein to provide flow communication between the container and a discharge nozzle mounted to the housing, the housing being configured to rest on a user's hand. and which includes a rotary striker mounted pi vertically to the same adjacent to the discharge nozzle, the housing including a discharge valve assembly positioned in the flow chamber and being operatively connected to the striker and movable between a first closed position and a second one. discharge position when the hammer moves towards the housing. 13. The pressurized fire extinguisher of claim 12, wherein the housing includes a nozzle rod in flow communication with the flow cham- ber and in which the discharge nozzle is positioned on the rod. 14. The pressurized fire extinguisher of claim 13, wherein the rod is adapted to receive one of a plurality of. different discharge nozzles, in each of the nozzles each include a discharge port and where some of the discharge ports are of a different size to others. 15. A squeeze hammer discharge assembly for use with one of a plurality of under pressure vessels, the containers having a medium under pressure stored therein, which comprises: a housing defining a flow chamber and which is mountable to one of the containers; a pivotable striker handle mounted to the housing and which is pivotably movable towards the housing between a first non-unloading position and a second position where the medium under pressure is discharged from the container; a discharge valve assembly positioned in the flow chamber operably connected to the pivo table firing handle and movable between a third position and a fourth position in conjunction with the movement of the firing pin handle, wherein the under pressure it is discharged from the container; a discharge nozzle mountable to the housing adjacent to the firing pin handle and which is in flow communication with the flow chamber, the discharge nozzle having a discharge po- ty designed for use with the medium under pressure stored in the I will prepare under pressure. 1

6. The squeeze hammer discharge assembly of claim 15, further including a nozzle shank extending from the housing adapted to interchangeably receive one of a plurality of different discharge nozzles, and which is in communication with the nozzle. flow with the flow chamber. 1

7. The squeeze hammer discharge assembly d of claim 16m, wherein the nozzle shank extends generally transversely from the flow chamber. 1

8. The squeeze hammer discharge assembly of claim 17, wherein the nozzle stem includes a plurality of grip members for engaging the discharge nozzle. 1

9. The squeeze hammer discharge assembly of claim 18, wherein the clamping members are adapted to engage the discharge chuck to fill the discharge beaker with the nozzle stem. 20. The front grip striker discharge assembly of claim 19, wherein the discharge nozzle includes a plurality of clamping receiver members adapted to receive the clamping members. 21. The front squeeze striker discharge assembly of the retraction 15, wherein the shank is adapted to receive one of a plurality of discharge nozzles, wherein the nozzles each include a discharge port and wherein some of the discharge ports are of a different size than others. SUMMARY OF THE INVENTION A front grip striker discharge assembly for use with a fire extinguisher having an extinguishing duress under pressure therein includes a housing defining a flow chamber. The housing has a front portion and a rear portion configured to rest in the hand of a user, and a pivotable striker handle mounted to the housing and placed in the front portion thereof. The pivotable hammer handle is configured to be worn by a user's fingers. The handle includes a pivot to rotate the handle relative to the housing between a first position and a second position toward the housing to discharge the extinguishing medium from the extinguisher. The handle includes a discharge nozzle at the front of the housing and a discharge valve assembly operably connected to the skin handle to provide a flow path between the container and the discharge nozzle. The striker handle is pivoted from the first position to the unloading position towards the housing housing by holding the handle and pulling on it ie tightening the handle, moving the valve assembly d to the unloading position. The housing also includes a nozzle rod that is adapted to interchangeably receive one of a plurality of different discharge nozzles to allow the use of the assembly with different types and sizes of fire extinguishers containing different types of extinguishing media. , stored at different pressures. 10 T5 0 5