FR2761148A1 - Hypodermic gun, e.g. for anaesthetising animal for treatment or marking - Google Patents

Abstract

The gun has a breech (3) with one end forming an extension to a gas propulsion chamber, a sight (6), trigger (5) and handle (4). The forward end of the breech has a fixed tubular member designed to receive a removable sliding barrel (10) which can be adjusted to vary the size of the gas propulsion chamber. The outer surface of the barrel has a series of markings to indicate the range of the syringe produced by a given gas propulsion chamber volume. The tubular member has a number of holes (14) connecting with the propulsion gas receiving chamber. Easier loading and adjustment to required range.

Description

HYPODERMAL PROJECTOR
The invention relates to a hypodermic projector. The invention relates to the technical sector of weapons, hypodermic rifles called in professional circles tele-injection projectors allowing temporary sleep, treatment, marking of an animal. The hypodermic projectors are arranged to receive in their barrel a syringe receiving a liquid allowing after projection the sleepiness of the animal. The projection of said syringe is carried out by actuating the trigger of the weapon which acts on a reserve disposed in the body of the weapon, this reserve comprising a carbon dioxide C02 or other.

The actuation of the weapon thus causes the escape of gases in a propulsion chamber allowing the projection of the hypodermic syringe.

The implementation of said syringes is carried out mainly by access to an opening at the entrance to the barrel, in the manner of a cartridge of a firearm.

One of the problems posed lies in the fact that the use of the hypodermic projector must be able to be carried out at a variable distance from the animal to be marked. The distance can vary from 1 meter to 50 meters and sometimes more. It follows that the hypodermic projector must receive and be equipped with adjustment means which can vary the power of the projection of the aforementioned syringe.

Another problem resides in a rapid adaptation of the weapon to take account of the conditions of the shooting at distance and the propelling forces.

Generally, adjustment members are positioned and fixed upstream of the barrel to meet this requirement. This therefore leads to slow, complex and sometimes audible manipulations (escape of gases). One of the difficulties encountered resides in the fact that the shooter often benefits from a short time to execute these various manipulations, in order to make his weapon operational and in good conditions, knowing that any bad adjustment can lead to tissue deterioration and organs of the animal at the point of impact, or an inappropriate trajectory.

Another constraint lay in the control of the consumption of gases coming from the reserve, the lowering of the initial or chosen pressure could cause an external emptying of the gases to obtain a lower pressure.

The aim sought after according to the invention was therefore to design a new hypodermic projector making it possible to meet the desired objectives, namely an easy manipulation of the syringes with a view to loading the barrel of the projector, an optimized adjustment very quickly of the projection power of the syringe taking into account the parameters of distance of the shooter from the arrow animal and of the projectile used, as well as an adjustment of the propulsion force of the syringe.

According to the invention, the hypodermic headlamp is of the type comprising a body having a cylinder head, one end of which is an extension of the gas reserve, on said cylinder head being disposed a sight, and in its underlying part known means for triggering, trigger, relating to a weapon, as well as the handle, the hypodermic headlight being characterized in that at the end of said breech is positioned a fixed tubular element capable of receiving a removable movable barrel sliding in position inside said tubular element depending on its position, a variation of the propulsion chamber for gases from the gas reserve, and in that said hypodermic syringe is mounted inside the movable barrel, and in that said movable barrel is arranged on its outer periphery with a plurality of marks having the function of visually identifying the projection ranges of the syringes by virtue of an amplitude of varia tion of the volume of the gas reception and propulsion chamber of the syringe.

According to another characteristic, the hypodermic headlamp is of the type comprising a body having a cylinder head, one end of which is an extension of the gas reserve, on said cylinder head being disposed a sight, and under its underlying part known means for triggering, trigger, relating to a weapon, as well as the handle, the hypodermic headlight being characterized in that at the end of said breech is positioned a fixed tubular element capable of constituting the barrel, and in that said hypodermic syringe is mounted inside of the barrel, and in that said fixed barrel is arranged on its outer periphery with a plurality of marks having the function of visually identifying the projection surfaces of the syringes, and in that the tubular element forming a fixed barrel is arranged with a plurality of vents arranged in alignment over all or part of the outer periphery, a sliding and adjustable ring closing off the or the vents depending on the desired propulsion of the syringe or similar projectile.

These characteristics and others will become apparent from the following description.

To fix the subject of the invention illustrated in a nonlimiting manner in the figures of the drawings where: - Figure 1 is a view of a hypodermic projector arranged according to the invention.

- Figure 2 is a partial view before mounting of the various components, objects of the invention on the hypodermic projector.

- Figure 3 is a top view of the free barrel.

- Figure 4 is a sectional view illustrating the mounting of the free barrel in the fixed barrel of the hypodermic projector, and this in a retracted position to the maximum.

- Figures 5A, 5B, 5C, 5D are schematic views illustrating the positioning of the free barrel in the fixed barrel at the different locations.

- Figures 6A, 6B, 6C, 6D are sectional views corresponding to Figures 5A, 5B, 5C, 5D.

- Figure 7 is a partial alternative view showing the positioning of a sliding ring on the fixed barrel.

- Figures 8 and 9 are sectional views along lines AA, BB of Figure 7.

In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.

The hypodermic headlamp is referenced as a whole by (1). I1 comprises a body (2) in the form of a pistol comprising a breech part (3) with, in a known manner, the handle (4), the trigger (5) of the sight (6) and the receiving chamber (7) of the reserve of gas.

According to the invention, the front end (3a) of the cylinder head is arranged to receive a tubular element (8) having on one side a threaded part (8a) capable of being fixed on the internal thread (3b) formed in the cylinder head part (3). This tubular element receives externally a handle or ring (9) sliding or not. Said tubular element (8) advantageously allows positioning and free sliding of a barrel (10) made in one or two parts. As shown in the drawings by way of example, the barrel includes a tubular element (lova) receiving the syringe and forming an external body, and if necessary an internal tubular element (lOb) reducing aluminum receiving a syringe (11) smaller diameter. To allow the reception of the reducing element, the tubular element (10a) is arranged with an internal shoulder (10a) ensuring the guiding of the flange (lob) of the internal tubular element (lob). The outer tubular element is capable of receiving at certain points on its periphery sealing rods (12).

According to the invention, the free and controlled positioning of the barrel (12) in the tubular element (8) makes it possible to vary the volume of the chamber (13) receiving gases, thus having an effect on the amplitude of projection and pushing of the syringe incorporated in the barrel (10). This chamber is defined in the space located between the end of the barrel (10) and of the incorporated syringe, the tubular body (8) and the internal space provided in the fixed barrel of the weapon, and the internal part. adapted from cylinder head 3.

According to an important arrangement of the invention, a plurality of marks is arranged on the free end of the barrel (10), these marks giving indications of distance, advantageously quantifiable in meters, as well as indications relating to the type of syringe, these marks corresponding to the amplitude of projection of the syringes out of the hypodermic projector. If the barrel receives the reducer internally, a mark or a plurality of marks also appear on said barrel corresponding to the type of syringe drawn from the reducer. There is thus shown in the figures (SA, 5B, 5C, 5D) the variable position of said reference points as a function of the degree of introduction of the barrel (10) into the tubular element (8). The latter presents at the right of its front face a possible additional marker placed opposite the markers established on the barrel (10). The positioning of the marks on the barrel (10) corresponds for example to the projection ranges of syringes of 10 meters, 20 meters, 50 meters, or the like.

According to another characteristic of the invention, it is possible to show several series of marks corresponding to several types of projectiles. It is therefore possible to produce radially around the periphery of the barrel (10) several different signs.

 It should be noted that the syringes are introduced into the barrel (10) by separating said barrel from the rest of the weapon. The adjustment in position of the barrel (10) in the tubular element (8) is carried out by simple sliding of the first in the second using the duly established marks.

According to another characteristic of the invention, the tubular element (8) can be arranged with a plurality of vents (14) arranged in alignment or not on all or part of the outer periphery of the latter. These vents thus communicate with the gas reception chamber and thus allow a discharge to the outside of part of the projected gases. The barrel (10) is capable depending on its position according to its introduction into the tubular element (8) to close off all or part of said vents. Thus, by the combination of the position of the barrel (10) in the tubular body (8), the projection force of the syringe is varied by using or not using the opening of the vents for the diffusion of gases to the outside. There is thus shown in Figures (6A, 6B, 6C, 6D) of drawings of different positions of the barrel (10).

Without departing from the scope of the invention, the barrel (10) can be produced in any suitable manner. It is the same for the known part of the projector in its body part.

Any type of syringe can be projected, also solid drug dart, solid or liquid marking arrows, or bullets.

The hypodermic projector allows not only the projection of syringes of the aforementioned type but any projectile of the same type.

In the variant illustrated in FIGS. 7 to 9, the hypodermic headlamp is designed such that the front end (3a) of the breech (3) is arranged to receive the tubular element of the aforementioned type which directly performs the barrel function, which therefore remains fixed. As before, the latter is arranged with one or more vents (14) distributed in any suitable manner. A sliding ring (15) is attached and moves on the tubular element forming a fixed barrel and is partially adjustable by a knurled button (16) or equivalent. One or more marks of the aforementioned type are disposed on said barrel to allow adjustment of the propulsion force of the syringe or similar projectile.

The advantages emerge clearly from the invention. In particular, the perfect adaptability and total simplicity of the position of the barrel (10) in its support is emphasized. The user can adapt his settings as and when he intervenes.

The shape and nature of the marks established on the barrel (10) can be produced in any suitable manner depending on the conditions of application of the weapon.

The markers can be engravings or any other means of visualization.

Claims (5)

- 1 - Hypodermic projector of the type comprising a body having a cylinder head, one end of which is an extension of the gas reserve, on said cylinder head being disposed a sight, and in its underlying part known means of trigger, trigger, relating to a weapon, as well as the handle, the hypodermic headlight being characterized in that at the end of said breech (3) is positioned a tubular element (8) fixed capable of receiving a removable movable barrel sliding in position inside said tubular element to ensure, depending on its position, a variation of the propulsion chamber of gases from the gas reserve, and in that said hypodermic syringe is mounted inside the movable barrel, and in that said movable barrel is arranged on its periphery exterior with a plurality of marks having the function of visually identifying the projection ranges of the syringes by virtue of an amplitude of variation of the volume e from the gas reception and propulsion chamber of the syringe. - 2 - hypodermic projector according to claim 1 characterized in that the tubular element (8) is arranged with a plurality of vents (14) arranged in alignment on all or part of the outer periphery, said vents communicating with the chamber reception and propulsion of gases by varying according to the position of the barrel (10) the volume of the gases projected towards the outside. 3 - hypodermic projector according to any one of claims 1 and 2 characterized in that the tubular element (8) has on its front face a complementary mark cooperating with the mark or marks formed on the barrel (10). - 4 - hypodermic projector according to any one of claims 1 to 3, characterized in that the end (3a) of the barrel (3) is arranged to receive fixedly a tubular element (8) having a part (8a) s' adapting on said end (3a), and in that said tubular element receives a handle (9) sliding or not. - 5 - Hypodermic headlamp of the type comprising a body having a cylinder head, one end of which is an extension of the gas reserve, on said cylinder head being disposed a sight, and in its underlying part known means of trigger, trigger, relating to a weapon, as well as the handle, the hypodermic projector being characterized in that at the end of said breech (3) is positioned a tubular element (8) fixed capable of constituting the barrel, and in that said hypodermic syringe is mounted on the inside the barrel, and in that said fixed barrel is arranged on its outer periphery with a plurality of marks having the function of visually identifying the projection surfaces of the syringes, and in that the tubular element (8) forming a barrel fixed is arranged with a plurality of vents (14) arranged in alignment over all or part of the outer periphery, a sliding and adjustable ring (15) closing off the vent (s) ts depending on the desired propulsion of the syringe or similar projectile.