PH12015000192A1 - A hand held grenade launcher - Google Patents

Abstract

The present invention relates to a hand held grenade launcher which features an ammunition firing means having a programmable guide unit secured to the grenade launcher body and a corresponding air bursting ammunition programmably configured by the programmable guide unit to explode in flight mode or explode directly on the intended target at a pre-programmed distance. The hand held grenade launcher of the present invention is also light in weight and is provided with a carrying means and an adjustable buttstock for ease of transport and use.

Description

. , oo

SPECIFICATION

A HAND HELD GRENADE LAUNCHER

TECHNICAL FIELD

The present invention relates in general to grenade launchers, but more } particularly to a hand held grenade launcher that can be carried as a dedicated stand-alone weapon during military and police operations and which : further features an ammunition firing means having a programmable guide unit and a corresponding air bursting ammunition programmably configured with the programmable guide unit, among others.

BACKGROUND OF THE INVENTION

Most grenade launchers are attached and carried on a rifle, usually on an

M-16 rifle, during military or police operations. Furthermore, this type of grenade launchers are fired while attached on the rifle which makes it very = cumbersome to use and operate. There are also hand held grenade launchers = or stand-alone type grenade launchers that are known in the prior art. No

However, problems regarding the use and transport of these known hand held = grenade launchers or stand-alone type grenade launchers usually arises during military or police operations. For instance, some of the specific problems encountered using conventional grenade launchers that are attached, carried and fired together with the rifle or hand held grenade launchers are the following, among others: o © oO 1. These existing grenade launchers are heavy since they are made of 2 metal/ steel and thus very cumbersome to carry and transport as an o} attached auxiliary weapon or a hand held weapon. @ 2. These existing grenade launchers are not provided with an ammunition firing guide intended to accurately and effectively hit the intended target area. For instance, the military personnel operating and using the grenade launcher can only approximate the distance of the intended area where the enemy is positioned. This often leads to the explosion of the ammunition inaccurately or far away from the 1 supposedly intended target area. More problematic is the situation where the enemy is hidden behind a tree or an immobile object. The explosion of the ammunition in such situation will be more ineffective and will not accurately hit the intended enemy target.

SUMMARY OF THE INVENTION

To solve the aforementioned problems of the existing grenade launchers, it : is the main object of the present invention to provide a hand held grenade launcher which features an ammunition firing means comprising a programmable guide unit secured to the grenade launcher body and a corresponding air bursting ammunition programmably configured with the guide unit to explode in flight mode or explode directly on the intended target at a pre-programmed distance.

Furthermore, the present invention provides for a hand held grenade o> launcher which is light in weight since the barrel is made of aluminum = material by a “special proprietary process” that would prevent the barrel ~ from melting while it is being formed together with the corresponding rifling = inner surface thereof. <

Furthermore, the present invention provides for a hand held grenade launcher that features an adjustable buttstock and a carrying means to facilitate the ease of handling and transportability of the herein hand held o : grenade launcher. < ; oO

More particularly, the present invention for a hand held grenade launcher 2 includes a a receiver unit having an adapter receiver having a upper receiver ~ portion and a grip receiver portion downwardly extending therefrom and being provided with at least a first and second attaching means, and a receiver frame with upper and lower attaching surfaces forwardly extending from the upper receiver portion of the adapter receiver, an end wall and an ! intermediate wall disposed being disposed within the receiver frame ‘proximate the end wall; a launcher unit having a launcher frame with a recoil ;

surface, a trigger assembly and a barrel, the launcher frame being secured to the lower attaching surface of the receiver frame, the receiver frame having upper and lower attaching surfaces and the launcher frame being secured to the lower attaching surface of the receiver frame; a pistol grip being detachably secured to the first attaching means of the adapter receiver; a buttstock being slidably secured within the receiver unit and disposed rearwardly from the adapter receiver; a weapon carrying means being provided on the receiver unit; and an ammunition firing means adapted to programmably control the firing distance and explosion of a loaded ammunition.

Still, another object of the present invention is to provide a hand held grenade launcher that can be manufactured using readily locally available materials and technology. -

These and other objects and advantages of the present invention will > become more apparent upon a reading of the ensuing detailed description oo taken in conjunction with the appended drawings. = 1 ok

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a right perspective view showing the hand held grenade launcher of the present invention;

FIG. 2 is a left perspective view showing the hand held grenade launcher of the present invention; o

FIG. 2A is a detailed view of the weapon carrying means; >

FIG. 3 is an exploded view of FIG. 1 ; 2

FIG. 4 is another perspective view showing the programmable guide unit of o ammunition firing means being detached from the body of the grenade *® launcher;

FIG. 4A is a perspective view of the Programmable guide unit;

FIG. 5 is a perspective view showing the hand held grenade launcher of the present invention with the buttstock in extended position; } ‘

FIG. 6 is a perspective view showing the hand held grenade launcher of the present invention with the buttstock and the barrel of the launcher unit in extended position/loading configuration;

FIG. 7 is a detailed view of the buttstock;

FIG. 8 is a sectional view showing the locking mechanism of the buttstock in closed position with respect to he receiver unit of the present invention;

FIG. 8A is another sectional view taken along line A-A- of FIG. 8 showing the buttstock in closed position;

FIG. 9 is a sectional view showing how the buttstock is slidably moved to an extended position;

FIG.10 is a sectional view showing the buttstock in a final extended position;

FIG. 11 is a detailed view of the trigger assembly in operational/firing configuration;

FIG. 12 is a detailed view of the trigger assembly in safety configuration; po and >

FIG. 13 is a longitudinal cross sectional view of the hand held grenade ~~ launcher of the present invention. = oo]

DETAILED DESCRIPTION

Before describing the present invention in detail, it is to be that the phraseologies and terminologies used herein are for the purposes of description and should not be regarded as limiting.

Referring now to the different views of the drawings, wherein like reference 2 numerals designate the components or elements and active steps throughout © the ensuing enabling description, there is shown the present invention for a - hand held grenade launcher designated as 10.

Referring to FIGS. 1, 2, 2A, 3, 4, 4a, 5, 6 and 13, the hand held grenade launcher 10 comprises of a receiver unit 11, a launcher unit 12 having a i launcher frame 13 with a recoil surface 14 and adapted to be secured to the 1 receiver unit 11, a trigger assembly 15 and a barrel 16 having a recoil surface 1

17 being adapted to be slidably secured to the launcher frame 13 through the recoil surface 14. The receiver unit 11 includes an adapter receiver 18 having an upper receiver portion 19 and a grip receiver portion 20 downwardly extending from the upper receiver portion 19, and a receiver frame 21 having an upper attaching surface 22 and lower attaching surface 23 forwardly extending from the upper receiver portion 19 of the adapter receiver 18. The receiver frame 21 is further formed by an end wall 21a and an intermediate wall 21b being disposed within the receiver frame 21 proximate the end wall 21a defining a space “5S”. The space “S” is adapted to house a barrel stop 24 to hold the barrel 16 in its extended position with respect to the receiver unit 11 when an ammunition is loaded therein.

As further shown in FIGS. 3 and 4, the grip receiver portion 20 has a : receiver body 20a downwardly extending from the upper receiver portion 19, a forward portion 20b, a bottom wall 20c and a hole 20d disposed through the of bottom wall 20c.The adapter receiver 18 is further provided with at least a = pair of first attaching means 25 and a second attaching means 26 to = accommodate and attach accessories such as a pistol grip or a sight assembly << and the like on the grenade launcher 10. The lower attaching surface 23 of on the receiver frame 21 is formed by abbreviated peripheral walls 23a having spaced apart holes 23b and which downwardly extends from the upper attaching surface 22. While the launcher frame 13 is formed by sidewalls 13a with spaced apart holes 13b, bottom wall 13c and an open top 13d. 5

As further shown in in FIGS. 3 and 13, the receiver unit 11 is adapted to be o : secured to the launcher unit 12 which comprises of the launcher frame 13, 2 trigger assembly 15 and barrel 16, by directly mounting the abbreviated 5 peripheral walls 23a of the lower attaching surface 23 of receiver frame 21 within the of the launcher frame 13 to form a common channel section “C”.

To secure the receiver unit 11 to the launcher frame 13, the holes 13b and 1 23b are correspondingly aligned to receive a fastening means “F” such as ] rivets, bolts and the like to interconnect the abbreviated peripheral walls 23a to the sidewalls 13a. The recoil surface 14 of launcher frame 13 which is provided on the outer surface of the bottom wall 13c is slidably secured to the recoil surface 17 of barrel 16 and the sliding thereof is limited by the barrel stop 24 which is provided on space “S” at the forward end portion of the receiver unit 11. More preferably, the launcher unit 12 employed in the present invention is one the launcher units presently used in military operations and designated as M203. In the existing set-up of the M203 launcher units, the launcher units are generally attached and fired on M16 rifles.

Furthermore, the launcher unit 12 is also carried and transported together with M16 rifles during military operations.

Referring now to FIGS. 1, 2, 3, 4, 5 and 6, the grenade launcher 10 of the present invention further includes of a pistol grip 27 detachably secured to an attaching means of the adapter receiver 18, more particularly, pistol grip 27 is detachably secured to the first attaching means 25 defined on the adapter receiver 18. The pistol grip 27 includes a hollow body 27a having an S upright upper portion 27b and an inclined lower portion 27c, and an inner = wall 27d having a hole 27e. Preferably, the inner wall 27d is provided N between the upright upper portion 27b and the inclined lower portion 27c of = : the hollow body 27a. The shape of the upright upper portion 27b of the ad hollow body 27a and the grip receiver portion 20 are substantially the same.

And moreover, the dimension of the upright upper portion 27b is larger than the dimension of the grip receiver portion 20 in order for the grip receiver portion 20 to be fitted and secured within the upright upper portion 27b and form the pistol grip 27. More particularly, the first attaching means 25 is S defined by a connector such as bolt “B” adapted to pass correspondingly 2 through hole 27e of inner wall 27d and hole 20d formed on the bottom wall o 20c of the grip receiver portion 20 in order to secure the grip receiver portion ~ 20 within the upright upper portion 27b and form the pistol grip 27.

Referring now to FIGS. 3, 5, 6 and 7, the hand held grenade launcher 10 of the present invention further includes an adjustable buttstock 28 which is provided and slidably secured within the common channel section “C” formed : by the receiver unit 11 and launcher frame 13. Buttstock 28 which is further ]

. - disposed rearwardly from the adapter receiver 18 comprises of a butt member 28a and a stem member 28b extending therefrom. As shown in FIG. 7, the butt member 28a is provided with an aperture 28a’ at the front portion and a pair of holes 28a” on one lateral portion thereof. Similarly, the stem member 28b is provided along its longitudinal surface with a pair spaced apart grooves 28b’ and 28b”, and a pair of holes 28b’” corresponding to holes 28a” and disposed on one end portion 28c. To secure the stem member 28b to the butt member 28a, the end portion of 28c is inserted into aperture 28a’ and the holes 28b’” are correspondingly aligned with holes 28a” of the butt member 28a. A pair of connecting pins 29 are provided and inserted and secured through the aligned holes 28a” and 28b’” to connect the stem member 28b to the butt member 28a. The stem member 28b is further provided with a spring loaded portion 28d disposed proximate the tip portion 28e. To operationally configure the buttstock 28 in an adjustable and slidable manner with respect to the common channel “C” formed by the unit receiver 11 and launcher = frame 13, the stem member 28b is telescopically inserted into channel “C” = via an entry slot 13e provided on the launcher frame 13 with the tip portion ~ 28e thereof adapted to be extendable up to the end wall 21b. — on

Referring now to FIGS. 2 and 2A, the hand held grenade launcher 10 in accordance with the present invention, also further includes a weapon carrying means 30 provided on a lateral portion 18a of the adapter receiver ; unit 18. This feature allows the mititary personnel to carry, transport and fire the hand held grenade launcher 10 of the present invention as a stand-alone o “rifle -type grenade launcher.” The weapon carrying means 30 includes a sling > holder 30a secured to a lateral portion 18a of the adapter receiver unit 18 © and a sling member 30b secured to the sling holder 30a. Preferably, the sling 2 holder 30a is a pin-type holder having a head portion 30c and a stem portion ~ 30d directly attached to the surface of the lateral portion 18a in a manner defining a distance “D” between the head portion 30c and the surface of the 3 lateral portion 18a. The sling member 30b is formed by a strap 30e and a . hook 30f extending therefrom. The hook 30f is adapted to be locked unto the ] distance “D” formed on the stem portion 30d. This locking arrangement allows

: : : the sling member 30b to swivel along the vertical plane of the lateral portion 18a with respect to the stem portion 30d and thus facilitating the ease of carriage and transport of the grenade launcher 10 during military or police operations.

Referring again to FIGS. 1, 2, 3, 4, 4A, 5, 6 and 13, the grenade launcher of the present invention further includes an ammunition firing means 31 having a programmable guide unit 32 which is detachably secured to one of the attaching means of the adapter receiver 18, more particularly, the 10 programmable guide unit 32 is secured to the second attaching means 26 of the adapter receiver 18 and an air bursting ammunition 33 (see FIG. 13) programmably configured with the programmable guide unit 32 to explode in flight mode at a pre-programmed distance. As particularly shown in FIGS. 4 and 4A, the programmable guide unit 32 includes a body 32a and a connecting - rail 32b provided on one lateral portion 32c of the body 32a. The connecting oo rail 32b is defined by a spaced apart channels 32d having opposed = corresponding holes 32d’ and ledge portion 32e being formed therebetween ~ which are adapted to be secured to the second attaching means 26 of the — adapter receiver 18. More particularly, the second attaching means 26 is < defined by at least pairs of spaced apart connecting rails 26a and a space 26b : formed between the pairs of spaced apart connecting rails 26a provided on one lateral portion of the adapter receiver 18. In securing the programmable guide unit 32 to one lateral portion of the adapter receiver 18, the spaced apart channels 32d are adapted to be slidably secured to the pairs of o connecting rails 26a, and simultaneously, the ledge portion 32e is adapted to S be slidably secured to the space 26b. When the programmable guide unit 32 is 2 finally secured to the pairs of spaced apart connecting rails 26a and space - 26b, at least a pair of pins 34 is provided on the spaces formed between at @ ] least a pair of connecting rails 26a and through holes 32d’ of the channels 32d to lock the programmable guide unit 32 thereon. The programmable guide unit 32 is also provided with a software executably configured within the 4 guide unit 32.

As further shown in FIG. 13, the ammunition firing means 31 further includes an air bursting ammunition 33 programmably configured with the executable software provided within the programmable guide unit 32 to explode in flight mode at a pre-programmed distance. In case the air bursting ammunition 33 does not explode in the default/programed flight mode, the air bursting ammunition 33 will instead explode directly on the area of the intended target at the pre-programmed distance. One of the advantage in using the ammunition firing means 31 of the present invention is that, it effectively facilitates the efficient explosion of the ammunition 33 while in mid-air or in flight mode accurately and exactly on the area of the intended target as programmed by the software provided on the programmable guide unit 32 and the air bursting ammunition 33. For instance, even if the intended target is totally hidden from sight or covered behind a barrier or a tree, the explosion in mid-air or in flight mode on the area of target will effectively hit the enemy targets with great precision. And in another instance as previously Ss mentioned, if in case the air bursting ammunition 33 does not explode in the => default/programed flight mode, the air bursting ammunition 33 will instead ND directly hit the ground of the intended target area and finally explode at the = pre-programmed distance. on

Referring again to FIGS. 1, 2, 3, 4, 5 and 6, the upper attaching surface 22 of the receiver frame 21 is provided with a plurality of spaced apart securing rails 34a which is adapted to receive and detachably secure rifle accessories : such as a front or rear sight assembly 35 and the like. The rifle accessory such o as the sight assembly 35 with corresponding sight 35a is also provided with S guide channels (not shown) which is adapted to be slidably secured to the 2 corresponding securing rails 34a in order to effectively attach or detach the - I rifle accessory such as sight assembly 35 on the upper attaching surface 22 of = the receiver frame 21.

To slidably secure the buttstock 28 on the receiver unit 11, a locking means “L” is provided therein to lock and release the stem member 28b along i the channel “C” at a desired distance rearwardly from the receiver unit 11.

.

More particularly, the locking means “L” is adapted to slidably secure the stem member 28b within the upper receiver portion 19 along channel section “C” and up to the intermediate wall 21b of the receiver frame 21 into movable and different locked positions with respect to the channel section “C” of the receiver unit 11. As shown in FIGS. 8, 8A, 9 and 10, the locking means “L” includes a spring loaded first movable pin 36 provided on one lateral surface of the receiver unit 11, a second movable pin 37 being correspondingly provided on the lateral surface of the receiver unit 11 opposite the spring loaded first movable pin 36 and a connector 38 provided within the channel section “C” and secured between the opposed end surfaces p and p’ of the first movable pin 36 and second movable pin 37, respectively. oO

In operation, the second movable pin 37 is adapted to be lodged or 2 dislodged on each of the spaced apart grooves 28b’ and 28b” of the stem » member 28b by actuating the first movable pin 36 and displace or lock the = second movable pin 37 from the grooves 28b’ and 28b”, respectively. More py particularly, FIGS. 8 and 8A show the buttstock 28 in its unextended position wherein the stem member 28b is slidably held within the confines of the receiver unit 11 by way of channel section “C” and the tip portion 28e thereof extends up to the intermediate wall 21b. In this unextended position, the second movable pin 37 is lodged on groove 28b’ to prevent the stem member S 28b to slide out rearwardly from the upper receiver portion 19. FIG. 9 on the 2 other hand shows how the buttstock 28 is moved from the unextended o position to an extended position as shown in FIG. 10. The slidable movement on of the buttstock 28 is attained by actuating or pushing the first movable pin 36 by a force “F” to a distance x to act on the surface p’ and displace the second movable pin 37 from the groove 28b’ by means of connector 38. This will allow the stem member 28 to be displaced rearwardly at a distance away from the upper receiver portion 19. And FIG. 10 shows the buttstock 28 in its final extended position. The final extended position which is the full extended position of the buttstock 28 is attained by further sliding the stem member 28 rearwardly away from the upper receiver portion 19 until the second movable ] pin 37 is lodged on the groove 28b” to consequently lock the stem member 28 ]

thereon. To return the buttstock 28 to its unextended position as shown in

FIGS. 8 and 8A, a force “F” is applied on the first movable pin 36 to act on the surface p, in a similar manner as dislodging the second movable pin 37 from the groove 28b’, to dislodged the second movable pin 37 from the groove 28b” by means of connector 38. At this instant, the stem member 28 can now be pushed forwardly with respect to the upper receiver portion 19 and return to its initial unextended position as shown in FIG. 8.

Referring now to FIGS. 11 and 12, the trigger assembly 15 is provided with a safety feature that will lock the trigger to prevent it from being accidentally actuated and pulled when the hand grenade launcher 10 of the present invention is loaded with ammunition 33 during military or non- I. military operations. In accordance with the present invention, the trigger > assembly 15 comprises of a housing 39 having a rear cover plate 39a, a on trigger guard 40 extending between the pistol grip 27 and the rearward ~ portion 13f of the launcher frame 13 and a trigger operating means “T” on provided within the housing 39. The trigger assembly 15 further includes a trigger 41 operably connected to the trigger operating means “T” and provided within the trigger guard 40 and a safety lever 42 actuatably secured to the trigger operating means “T” within said trigger guard 40 and spacedly disposed from the trigger 41.The safety lever 42 has a cam 43 S rotatably secured to the housing by means of a pin 44. The cam 43 has a o lower notch 43a and upper notch 43b formed on the edge thereof. By 2 means of the mechanism of the trigger operating means “T”, the safety = lever 42 is adapted to be actuated substantially in close proximity towards the trigger 41 as shown in FIG. 12, or substantially away from the trigger and in close proximity with the trigger guard 40 as in FIG. 11. The movement of the safety lever 42 to the trigger firing mode/position as shown in FIG. 11 will allow the trigger 41 to be actuatable and ready to be used for operation and firing, while the movement of the safety lever 42 to the trigger safety mode/position as shown in FIG. 12 will prevent the trigger 41 to be used and at the same time prevent the finger of the user to i be inserted within the trigger guard 40. With the present construction of ]

the trigger assembly, the safety feature of the present invention for a hand held grenade launcher is readily achieved.

Referring again to FIGS. 11 and 12, the trigger operating means “T” includes a spring-biased trigger connector 45 having a trigger connector spring 45a and which is pivotally connected to the trigger 41 by means of a pin 46 provided on the housing 39. The spring-biased trigger connector 45 is provided on the rear cover plate 39a of the housing 39. The trigger operating means “T” further includes an extractor 47 supported at the lower portion of the housing 39 and a spring-biased safety lever detent pin 48 supported by a detent spring 48a which is disposed on the extractor 47 by means of extractor spring 47a, the spring-biased safety lever detent pin 48 is disposed forwardly to the cam 43 and is further adapted to be engageably secured to the cam 43. S

More particularly, the spring-biased safety lever detent pin 48 is adapted to be oo engageably secured to the lower notch 43a of cam 43 to allow the safety lever 2 42 to be positioned substantially away from the trigger and in close proximity = with the trigger guard 40 as shown in the trigger firing mode/ position in FIG. wo 11, and the spring-biased safety lever detent pin 48 is also adapted to be engageably secured to the lower notch 43b of cam 43 to allow the safety lever 42 to be positioned substantially in close proximity towards the trigger : 41 as shown in the trigger safety mode/position in FIG. 12. The movement of the cam 43 to its particular positions with respect to the tip of the spring- S ~ biased safety lever detent pin 48 as shown in FIGS. 11 and 12 are readily 2 achieved by simply actuating the safety lever 42 which is pivotally supported © by pin 44 on the housing 39 away from or towards the trigger 41. ~

As further shown in FIGS. 11 and 12, the trigger operating means “T” also further includes a spring-biased firing pin 49 actuatably configured with the trigger 41 and the safety lever 42, and a relocking lever 50 actuatably 1 configured with the trigger 41 and the spring-biased firing pin 49. More particularly, the spring-biased firing pin 49 is loaded with spring 49a and having a contact surface 49b spacedly positioned directly with the tip portion 45b of the spring-biased trigger connector 45 and a firing tip 49c spacedly positioned directly with the primer 33a of the ammunition 33. The relocking lever 50 is pivotally secured and supported by pin 51 on the housing 39 and having an upper lever portion 50a and lower lever portion 50b. The upper lever portion 50a is operably secured to the end portion of a spring-biased relocking guide 52. The spring-biased relocking guide 52 is provided above the spring-biased firing pin 49 and includes a relocking pin 52a and corresponding spring 52b both adapted to operably slide along the horizontal guide channel 52c. While the lower lever portion 50b is operably secured to the spring 49a of the spring-biased firing pin 49. A channel guide 53 is further provided above the horizontal guide channel 52c to allow the upper lever portion 50a of the relocking lever 50 to operably slide along channel guide 53 when the trigger 41 is actuated in firing/operational mode. The trigger operating means “T” is also provided with a spring-biased ejector 54 having an ejector spring 54a. =

Referring again to FIG. 13, although the M203 grenade launchers are made = of steel material and sometimes aluminum material, the barrel 16 of the ~ launcher unit 12 of the present invention is specifically made of aluminum — material which greatly contributes to its portability, firing accuracy and ease ad of handling as a dedicated stand-alone grenade launcher due to its lightweight, among others. More particularly, the rifling 16a which is formed inside the surface of the aluminum barrel 16 by means of a “special proprietary process”, since the conventional process used or intended for o steel material will be not appropriate and applicable as the aluminum will © easily melt during the process. As previously mentioned, the advantage of 2 using aluminum material is that the hand held grenade launcher 10 of the < present invention is much lighter to carry, transport and use without co compromising or affecting its operational and firing performance. The rifling 16a which is disposed in a substantially spiral configuration on the inner surface of the barrel 16 aids in the accurate and efficient trajectorial flight of the air bursting ammunition 33 from the barrel 16 until its explode in the air } on the intended target area in the default/programed flight mode or directly / on the ground of intended target area in case the default flight mode ; accidentally becomes non-operational. !

To use the hand held grenade 10 of the present invention, the programmable guide unit 32 is first installed on the adapter receiver 18 of the receiver unit 11 through the connecting rail 32b provided on one lateral portion 32c of the body 32a thereof and the spaced apart connecting rails 26a and a space 26b formed between the pairs of spaced apart connecting rails 26a provided on one lateral portion of the adapter receiver 18 as shown in the detached configuration in FIG. 4 and the assembled configuration in FIGS. 1,2, and 5. The programmable guide unit 32 is then programed to the distance of the desired target area, as well as the air bursting ammunition 33 is synchronized with the programmable guide unit 32. This will allow the air bursting ammunition 33 to explode in flight on the designated target or explode directly on the ground of the target area in case the default flight mode accidentally becomes non-operational. The launcher unit 12, more = particularly, the barrel 16 is now extended by sliding forwardly from the ig receiver unit 11 and the same instance, ammunition 33 is loaded on the barrel NG 16 as shown in FIGS. 6 and 13. The barrel 16 is then returned to its initial = firing position shown in FIGS. 1, 2 and 5 and the safety lever 42 is unlocked to on : prepare the trigger 41 in firing mode as shown in FIG. 11. In case, the loaded grenade launcher 10 is not yet in use, the safety lever 42 can be actuated to the safety mode position as shown in FIG. 12. The safety lever 42 is easily actuated manually to achieve its desired position as shown in FIGS. 11 and 12.

As previously described, the manila actuation of the safety lever 42 will allow 3 the cam 43 to rotate and either the upper notch 43a or lower notch 43b is o now adopted to be lodged on the tip of spring-biased safety lever detent pin 2 j 48 to attain the positions of the safety lever 42 with respect to the trigger 41 © as shown in FIGS. 11 and 12. Finally, the firing of the air bursting ammunition ; 33 on the hand held grenade launcher 10 is achieved when the trigger 41 is pulled and simultaneously the tip portion 45b of the spring-biased trigger connector 45 comes into contact with the contact surface 49b of the spring- ] biased firing pin 49, the upper lever portion 50a of the relocking lever 50 i then moves rearwardly along the horizontal guide channel 53a and at the ! same time the lower lever portion 50b thereof forwardly pushes the spring 49a to actuate the firing tip 49c to directly hit the primer 33a of the air is

: - bursting ammunition 33. The air bursting ammunition 33 is released from the barrel 16 in a spiral trajectory following the position of the rifling 16a.

With these features, the hand held grenade launcher 10 of the present invention provides the military or police personnel/user the benefits of a light weight and transportable hand held grenade launcher which is provided with a programmable guide unit secured to the grenade launcher body and a corresponding air bursting ammunition programmably configured with the guide unit to precisely and effectively explode in flight mode or explode directly on the intended target at a pre-programmed distance.

Additional advantages and modifications of the present invention will readily occur to those skilled in the art in view of these teachings. The present oo invention in its broader aspects is not limited to the specific details, 2 representative contrivances, and illustrative examples shown and described 2 herein. Accordingly, various modifications may be made without departing << from the spirit and scope of the general concept as defined in the appended on claims and their equivalents. © © © © o » Ss 16 1

Claims (24)

CLAIMS:

1. A hand held grenade launcher comprising: a receiver unit having an adapter receiver being provided with at least a pair of attaching means and a receiver frame forwardly extending from said adapter receiver; a launcher unit having a launcher frame with a recoil surface, a trigger assembly and a barrel; a pistol grip being detachably secured to an attaching means of said adapter receiver; a buttstock being slidably secured within said receiver unit and disposed rearwardly from said adapter receiver; and a weapon carrying means being provided on said receiver unit; wherein said adapter receiver having an upper receiver portion and @ grip = receiver portion downwardly extending therefrom, said receiver frame having = upper and lower attaching surfaces, an end wall and an intermediate wall ~~ being disposed within said receiver frame proximate said end wall, (and said < launcher frame being secured to the lower attaching surface of said receiver frame; J

2. A hand held grenade launcher accarding to claim 1, further comprising an ammunition firing means having a programmable guide unit detachably secured to one of the attaching means of said adapter receiver and an air o bursting ammunition programmably configured with said guide unit to explode o in flight mode or explode directly on the intended target at a pre-programmed 2 distance. Nf

=

3. Ahand held grenade launcher according to claim 1, wherein the upper attaching surface of said receiver frame is provided with a plurality of spaced i apart securing rails. | j

}

4. A hand held grenade launcher according to claim 1, wherein said buttstock comprising a butt member and a stem member extending therefrom, i said stem member being provided with spaced apart grooves and a spring loaded portion proximate the tip portion thereof. MDC + 2

5. A hand held grenade launcher according to claims 1, 2, 3 or 4, further comprising a sight assembly being detachably secured to the upper surface of said receiver frame. MOC uy

6. A hand held grenade launcher according to claim 5, wherein said receiver unit being provided with a locking means adapted to slidably secure said stem member within said upper receiver portion up to said intermediate wall of the receiver frame into a movable and different locked positions with respect to said receiver unit. [a

7. A hand held grenade launcher according to claim 4 or 6, wherein said met > locking means comprising a spring loaded first movable pin provided on one oo lateral surface of the receiver unit, a second movable pin being = correspondingly provided on the lateral surface of the receiver unit opposite py said spring loaded first movable pin and a connector provided within said receiver unit and secured between opposed end surfaces of said first and ; second movable pins, said second movable pin being adapted to be lodged or dislodged on said grooves by actuating said first movable pin.

o

8. A hand held grenade launcher according to claim 1, wherein said 2 weapon carrying means comprising a sling holder being secured to the side 2 surface of said adapter receiver and a sling member secured to said sling No holder. ™

9. Ahand held grenade launcher according to claim 1, wherein said trigger assembly comprising a housing having a rear cover plate, trigger guard extending between said pistol grip and the rearward portion of said launcher frame, a trigger operating means being provided within said housing, a trigger being operably connected to said trigger operating means within said trigger guard, and a safety lever being actuatably secured to said trigger operating means within said trigger guard and spacedly disposed from said trigger, said safety lever having a cam rotatably secured to said housing, said safety lever being adapted to be actuated substantially in close proximity towards the trigger or substantially away from the trigger and in close proximity with the trigger guard.

10. A hand held grenade launcher according to claim 9, wherein said trigger operating means comprising a spring-biased trigger connector being pivotally connected to said trigger and provided on the rear cover plate of said housing, a spring-biased safety lever detent pin being provided on said housing, said spring-biased safety lever detent pin being actuatably secured to said cam portion, a spring-biased firing pin being actuatably configured with said trigger and said safety lever and a relocking lever being actuatably configured with oo said trigger and said spring-biased firing pin. 2 is ~

11. A hand held grenade launcher according to claim 1, wherein said barrel = is made of aluminum material. on

12. A hand held grenade launcher comprising: a receiver unit having an adapter receiver having a upper receiver portion and a grip receiver portion downwardly extending therefrom and being provided with at least a first and second attaching means, and a receiver o frame with upper and lower attaching surfaces forwardly extending from the 3 upper receiver portion of said adapter receiver, an end wall and an 2 intermediate wall being disposed within said receiver frame proximate said N E end wall; w a launcher unit having a launcher frame with a recoil surface, a trigger assembly and a barrel, said launcher frame being secured to the lower attaching surface of said receiver frame, said receiver frame having upper and lower attaching surfaces and said launcher frame being secured to the lower ] attaching surface of said receiver frame; ; a pistol grip being detachably secured to the first attaching means of said i adapter receiver; ] 19 i a buttstock being slidably secured within said receiver unit and disposed rearwardly from said adapter receiver; a weapon carrying means being provided on said receiver unit; and an ammunition firing means adapted to programmably control the firing distance and explosion of a loaded ammunition.

13. A hand held grenade launcher according to claim 12, wherein said first attaching means comprising a bore provided through the bottom of the grip receiver portion and adapted to receive a bolt and washer to connect said pistol grip thereto. MPC +

14. A hand held grenade launcher according to claims 12 or 13, wherein said second attaching means comprising spaced apart securing rails being provided x on one side of said upper receiver portion of the adapter receiver. > Moc 3} NO

15. A hand held grenade launcher according to claim 14, wherein said = ammunition firing means comprising a programmable guide unit detachably Of secured to the second attaching means of said adapter receiver and an air bursting ammunition programmably configured with said guide unit to explode in flight mode or explode directly on the intended target at a pre-programmed : distance.

16. A hand held grenade launcher according to claim 12, wherein said © buttstock comprising wherein said buttstock comprising a butt member and a 2 stem member extending therefrom, said stem member being provided with > spaced apart grooves and a spring loaded portion proximate the tip portion ~ thereof. mpc +3 i

17. A hand held grenade launcher according to claims 12, 13, 15 or 16, i wherein said upper attaching surface of the receiver frame is provided with a i plurality of spaced apart securing rails. i

WC +3

18. A hand held grenade launcher according to claim 17, further comprising a sight assembly being detachably secured to the upper surface of said receiver frame.

19. A hand held grenade launcher according to claim 18, wherein said receiver unit being provided with a locking means adapted to slidably secure said stem member within said upper receiver portion up to said intermediate wall of the receiver frame into a movable and different locked positions with respect to said receiver unit.

20. A hand held grenade launcher according to claim 19, wherein said locking means comprises of wherein said locking means comprising a spring loaded first movable pin provided on one lateral surface of the receiver unit, S a second movable pin being correspondingly provided on the lateral surface of = the receiver unit opposite said spring loaded first movable pin and a connector No) provided within said receiver unit and secured between opposed end surfaces = of said first and second movable pins, said second movable pin being adapted on to be lodged or dislodged on said grooves by actuating said first movable pin. MDC 4

21. A hand held grenade launcher according to claims 16 or 18, wherein said weapon carrying means comprising a sling holder being secured to the side surface of said adapter receiver and a sling member secured to said sling oo holder. 2

22. A hand held grenade launcher according to claim 12, wherein said ~ trigger assembly comprising a housing having a rear cover plate, trigger guard a extending between said pistol grip and the rearward portion of said launcher frame, a trigger operating means being provided within said housing, a trigger being operably connected to said trigger operating means within said trigger guard, and a safety lever being actuatably secured to said trigger operating i means within said trigger guard and spacedly disposed from said trigger, said safety lever having a cam rotatably secured to said housing, said safety lever being adapted to be actuated substantially in close proximity towards the trigger or substantially away from the trigger and in close proximity with the trigger guard.

23. A hand held grenade launcher according to claim 10, wherein said trigger operating means comprising a spring-biased trigger connector being pivotally connected to said trigger and provided on the rear cover plate of said housing, a spring-biased safety lever detent pin being provided on said housing, said spring-biased safety lever detent pin being actuatably secured to said cam portion, a spring-biased firing pin being actuatably configured with said trigger and said safety lever and a relocking lever being actuatably configured with said trigger and said spring-biased firing pin.

24. A hand held grenade launcher according to claim 12, wherein said S barrel is made of aluminum material. S ~~ << wind @n ; VICTORINO R. FLORO, JR. INVENTOR o o o oe : o Nf o