Patent Grant
10288368
Various embodiments of the present invention relate generally to a rifle or firearm and in particular, a gas regulator for a firearm. Still other embodiments relate generally to a rifle or firearm and in particular, a locking sight for a firearm.
Folding or collapsible sights are desirable for weapons in that the same allows the sight to transition from a first folded or stowed position to a second extended or deployed position. In one application, the first folded or stowed position allows the sight to be configured or located in a position that does not interfere with an optical sighting system or accessory that is mounted to a rail of the weapon. However, folding or collapsible sights may be inadvertently moved from the deployed position. Accordingly, it is desirable to provide a folding or collapsible sight with a locking mechanism that prevents inadvertent movement of the sight
A flash suppressor and/or a sound suppressor used with a firearm or rifle will increase the rate of fire or cycling of the firearm. This increase in cycling may also increase the wear rate of components of the firearm. In addition, variations in the types of ammunition used with rifle will also vary the cycling rate of the rifle and a rifle configured for use with one type of ammunition may cycle too fast when fired with another type of ammunition thus causing the aforementioned excessive wear to the components of the rifle. Non-limiting examples of different types of ammunition are 5.56 mm NATO ammunition and 223 Remington ammunition each of which may provide different cycling rates when fired from a rifle having the same gas port configuration in a gas impingement system. Still further there are reliability issues associated with higher cycling rates when ammunition is changed for example, round feeding may not occur or may occur improperly.
Accordingly, it is desirable to provide an apparatus and method for regulating the gas pressure in a rifle and thus allowing the same to be configured for use with suppressors and various types of ammunition.
In one exemplary embodiment a gas regulator for a rifle is provided, the gas regulator having: an elongated member having a first end and a second end; a head portion located at the first end; a pair of openings passing through the elongated member, wherein one of the pair of openings is larger than the other one of the pair of openings; and a recessed area located at the second end.
In another exemplary embodiment a gas block for a rifle is provided, the gas block having: a gas regulator having a first end and a second end; a pair of openings passing through the gas regulator, wherein one of the pair of openings is larger than the other one of the pair of openings; and wherein the gas regulator is slidably received within an opening of the gas block for movement between a first position and a second position, wherein one of the pair of openings through the gas regulator provides fluid communication between a pair of openings in the gas block when the gas regulator is in the first position and another one of the pair of openings through the gas regulator provides fluid communication between the pair of openings in the gas block when the gas regulator is in the second position.
In yet another embodiment a rifle is provided, the rifle having: a barrel; a gas block having a pair of openings wherein one of the pair of openings is in fluid communication with the barrel; a gas regulator having a first end and a second end; a pair of openings passing through the gas regulator, wherein one of the pair of openings is larger than the other one of the pair of openings; and wherein the gas regulator is slidably received within an opening of the gas block for movement between a first position and a second position, wherein one of the pair of openings through the gas regulator provides fluid communication between the pair of openings in the gas block when the gas regulator is in the first position and another one of the pair of openings through the gas regulator provides fluid communication between the pair of openings in the gas block when the elongated member is in the second position.
In another embodiment a front sight for a weapon is provided, the front sight having: a mounting block; a tower pivotally mounted to the mounting block for movement between a first position and a second position; a first locking mechanism having a plurality of spring biased members for retaining the tower in the first position and the second position, the plurality of spring biased members being configured to allow movement of the tower between the first position and the second position in response to a force applied to the tower; and a second locking mechanism configured to lock the tower in the second position, wherein the second locking mechanism must be manually released before the tower can be moved from the second position to the first position.
In yet another embodiment a rifle is provided, the rifle having: a mounting block configured to be coupled to a barrel of the rifle; a tower pivotally mounted to the mounting block for movement between a first position and a second position; a first locking mechanism having a plurality of spring biased members for retaining the tower in the first position and the second position, the plurality of spring biased members being configured to allow movement of the tower between the first position and the second position in response to a force applied to the tower; and a second locking mechanism configured to lock the tower in the second position, wherein the second locking mechanism must be manually released before the tower can be moved from the second position to the first position.
In still yet another embodiment, a gas regulator for a rifle is provided. The gas regulator having: an elongated member having a first end and a second end; a head portion located at the first end; a pair of openings passing through the elongated member, wherein one of the pair of openings is larger than the other one of the pair of openings; a recessed area located at the second end; and wherein the gas regulator is located in a front sight of the rifle, the sight, having: a mounting block; a tower pivotally mounted to the mounting block for movement between a first position and a second position; a first locking mechanism having a plurality of spring biased members for retaining the tower in the first position and the second position, the plurality of spring biased members being configured to allow movement of the tower between the first position and the second position in response to a force applied to the tower; and a second locking mechanism configured to lock the tower in the second position, wherein the second locking mechanism must be manually released before the tower can be moved from the second position to the first position.
In yet another embodiment, a gas block for a rifle is provided. The gas block having: a gas regulator having a first end and a second end; a pair of openings passing through the gas regulator, wherein one of the pair of openings is larger than the other one of the pair of openings; and wherein the gas regulator is slidably received within an opening of the gas block for movement between a first position and a second position, wherein one of the pair of openings through the gas regulator provides fluid communication between a pair of openings in the gas block when the gas regulator is in the first position and another one of the pair of openings through the gas regulator provides fluid communication between the pair of openings in the gas block when the gas regulator is in the second position and wherein the gas block further includes a front sight of the rifle, the front sight, having: a mounting block; a tower pivotally mounted to the mounting block for movement between a first position and a second position; a first locking mechanism having a plurality of spring biased members for retaining the tower in the first position and the second position, the plurality of spring biased members being configured to allow movement of the tower between the first position and the second position in response to a force applied to the tower; and a second locking mechanism configured to lock the tower in the second position, wherein the second locking mechanism must be manually released before the tower can be moved from the second position to the first position.
In yet another embodiment, a rifle is provided. The rifle having: a barrel; a gas block having a pair of openings wherein one of the pair of openings is in fluid communication with the barrel; a gas regulator having a first end and a second end; a pair of openings passing through the gas regulator, wherein one of the pair of openings is larger than the other one of the pair of openings; wherein the gas regulator is slidably received within an opening of the gas block for movement between a first position and a second position, wherein one of the pair of openings through the gas regulator provides fluid communication between the pair of openings in the gas block when the gas regulator is in the first position and another one of the pair of openings through the gas regulator provides fluid communication between the pair of openings in the gas block when the elongated member is in the second position; and wherein the gas block further includes a front sight of the rifle, the front sight, having: a mounting block; a tower pivotally mounted to the mounting block for movement between a first position and a second position; a first locking mechanism having a plurality of spring biased members for retaining the tower in the first position and the second position, the plurality of spring biased members being configured to allow movement of the tower between the first position and the second position in response to a force applied to the tower; and a second locking mechanism configured to lock the tower in the second position, wherein the second locking mechanism must be manually released before the tower can be moved from the second position to the first position.
In one embodiment, a gas regulator for a rifle is provided. The gas regulator having: an elongated member having a first end and a second end; a head portion located at the first end; a pair of openings passing through the elongated member, wherein one of the pair of openings is larger than the other one of the pair of openings; a recessed area located at the second end; and a pair of detent openings located on a portion of the elongated member, the pair of detent openings being spaced from each other and located within another recessed area located on a surface of the elongated member between the first end and the second end, wherein one of the pair of detent openings is closer to the first end than the other one of the pair of detent openings.
In yet another embodiment, a gas block for a rifle is provided. The gas block having: a gas regulator having a first end and a second end; a pair of openings passing through the gas regulator, wherein one of the pair of openings is larger than the other one of the pair of openings; wherein the gas regulator is slidably received within an opening of the gas block for movement between a first position and a second position, wherein one of the pair of openings through the gas regulator provides fluid communication between a pair of openings in the gas block when the gas regulator is in the first position and another one of the pair of openings through the gas regulator provides fluid communication between the pair of openings in the gas block when the gas regulator is in the second position; a spring biased detent releasably retaining the gas regulator in the first and second positions by engaging a pair of detent openings located on a portion of the gas regulator, the pair of detent openings being spaced from each other and located within a recessed area located on a surface of the gas regulator between the first end and the second end, wherein one of the pair of detent openings is closer to the first end than the other one of the pair of detent openings; and wherein the gas block further comprises a front sight of the rifle, the front sight being pivotally mounted to the gas block for movement between a first locked position and a second locked position, the first locked position being offset from the second locked position.
In yet another embodiment, a method for regulating gas pressure in a rifle is provided. The method including the steps of: slidably mounting an elongated member within an opening of a gas block of the rifle for movement between a first position and a second position; aligning a first one of a pair of openings extending through the elongated member with a pair of openings located in the gas block when the elongated member is in the first position; aligning a second one of the pair of openings extending through the elongated member with the pair of openings located in the gas block when the elongated member is in the second position, wherein one of the pair of openings extending through the elongated member is larger than the other one of the pair of openings; and retaining the elongated member at either the first position or the second position by engaging one of a pair of detent openings with a spring biased detent, the pair of detent openings being spaced from each other and located within a recessed area located on a surface of the elongated member, the recessed area being located between a first end and a second end of the elongated member, wherein one of the pair of detent openings is closer to the first end than the other one of the pair of detent openings.
Other aspects and features of embodiments of the invention will become apparent to those ordinarily skilled in the art upon review of the following description of specific embodiments of the invention in conjunction with the accompanying figures.
Embodiments of the present invention will now be described, by way of example only, with reference to the attached Figures, wherein:
Reference is made to the following U.S. Pat. Nos. 6,792,711; 7,131,228; and 7,775,150 the contents each of which are incorporated herein by reference thereto. Reference is made to the following pending U.S. Provisional Patent Application Ser. No. 61/481,697, filed May 2, 2011 and U.S. Non-Provisional patent application Ser. No. 13/462,346, filed May 2, 2012, the contents each of which are incorporated herein by reference thereto.
Disclosed herein is an apparatus, method and system for providing a locking sight for a rifle or firearm to provide various sight positions.
Referring now to the attached FIGS. a locking sight 10 of a firearm is illustrated. Of course, aspects of this invention may be applied to other sights such as rear sights, etc. In one exemplary embodiment, the locking sight is a front sight of a firearm. As illustrated, the locking front sight 10 has a mounting block or gas block 12 that is mounted to an upper receiver of the firearm or weapon.
A sight tower 14 is pivotally mounted to the mounting block or gas block 12 for movement between a first position
In order to retain the sight tower in either the first position or the second position, a first locking mechanism 22 is provided. In one embodiment, the first locking mechanism 22 is a plurality of spring biased members 24 that are received within complimentary openings 26 of the wall members 18. The lower portion of the sight tower has a plurality of recessed features 28 on an exterior surface of the sight tower such that when the sight tower is in either the first or second position the plurality of spring biased members 24 extend outwardly away from wall member 18 such that a portion of each of the spring biased members is partially received within openings 26 and recessed features 28 such that the sight tower is locked in either the first position or the second position. In one embodiment, the spring biased members 24 are a plurality of balls each being biased in a first direction 27 by a spring 29.
In one non-limiting exemplary embodiment, the spring biased members 24 are only located in one wall member 18. Of course, alternative configurations are contemplated wherein the spring biased members 24 are located in both wall members 18 and are configured to engage complimentary openings or recessed features 28 on a surface of the sight tower. In addition and in one non-limiting exemplary embodiment, the openings or recessed features 28 are offset 90 degrees from each other to define the first position and the second position of the sight tower. Of course other orientations and configurations are contemplated.
In order to move the sight tower from either the first or second position, a force is applied to the sight tower such that the spring biased features are pushed back into the openings 24 of the wall member or members 18 and the tower can be repositioned from either the first or second position. Accordingly, the first lock mechanism 22 releasably retains the sight tower in either the first or second position. However, an applied force to the tower may be sufficient to overcome the biasing force applied to the spring biased members 24 and cause the tower to move between the first position and the second position, whether this is intentional or unintentional (e.g., sight tower inadvertently contacts a surface as opposed to a deliberate user applied force).
In order to retain the sight tower in second position, a second locking mechanism 30 is provided. The second locking mechanism is configured to lock the tower in the second position, wherein the second locking mechanism must be manually released or disengaged before the tower can be moved from the second position to the first position. In one non-limiting embodiment, the second locking mechanism is a spring biased catch or member 32 having a tab portion or feature 34 that is configured to engage a slot or opening 36 of the mounting block when the sight tower is in the first position.
In one embodiment, the catch or member 32 is slidably mounted to the sight tower for movement in the direction of arrows 38 and 40 with respect to the sight tower 14. The catch or member 32 is biased in the direction of arrow 38 by a spring 42 such that as the sight tower is rotated into the second position, tab or feature 34 of the catch or member 32 is received within the slot or opening 36 and the sight tower 14 is locked in the second position. Accordingly, the sight tower 14 cannot be moved from the second position to the first position unless catch or member 32 is moved upwardly in the direction of arrow 40 against the biasing force of the spring 42.
In the illustrated embodiment, the catch or member is slidably mounted to the front end of the sight tower 14 and has a surface 46 that is configured to frictionally engage a user's finger or thumb in order to move the catch or member 32 in the direction of arrow 40 wherein the sight tower can be pivoted or rotated from the second or locked position towards the first position.
Once moved upwardly in the direction of arrow 40, the tab member or catch 32 is removed from the slot or opening 36 such that the tab member or catch 32 is no longer received within slot or opening 36 and the sight tower can be pivoted from the second position towards the first position when the tab member or catch is moved out of slot or opening 36.
Thereafter and when the sight tower is moved away from the second position it can once again be repositioned into the second position, wherein the first locking mechanism and the second locking mechanism retain the sight tower in the second position.
In one exemplary embodiment, the mounting block or gas block 12 is configured to be in fluid communication with a bore of a barrel 48 via an opening 50 that is fluidly coupled to a complementary opening of the barrel such that locking front sight can be used in with a gas operating system for a firearm. Non-limiting examples of such systems are described in the following U.S. Pat. Nos. 5,726,377; 5,945,626; 7,610,844; 7,934,447; and 7,938,055 the contents each of which are incorporated herein by reference thereto. Still further reference is made to the following pending U.S. patent application Ser. No. 12/559,047 filed Sep. 14, 2009, the contents of which is incorporated herein by reference thereto. In addition the following PCT application WO—2010/030987 is also incorporated herein by reference thereto.
In one non-limiting exemplary embodiment an opening or bore 52 is provided to receive a sleeve (not shown) that fluidly couples opening 50 to the gas operating system. In one embodiment the sleeve is configured to be received in bore 52 in at least two orientations (e.g., 180 degrees off set from each other of course other orientations are contemplated) wherein one of two different sized orifices or openings is fluidly coupled to opening 50 and the other is not. Thus, a user is able to remove, rotate and replace the sleeve in at least two orientations that vary the gas pressure of the gas operating system by varying the size of the orifice coupling the bore to the gas operating system.
As mentioned above this is particularly useful when a rifle is used with or without a suppressor and/or wherein the types of ammunition fired from the rifle is varied.
In one embodiment, the sleeve is also configured to engage at least one of a pair of cam surfaces 54 located on a forward end of the gas block or mounting block 12 of the locking front sight 10. The cam surfaces 54 are located on opposite sides of the bore 52 and are configured to engage a complementary feature of the sleeve such that rotation of the sleeve in bore 52 in one direction will cause the sleeve to move out of the forward end on the gas block or mounting block 12. The pair of cam surfaces 54 are provided to allow for the sleeve to be in the aforementioned at least two orientations such that different sized openings can be selectively placed in fluid communication with the opening 50 to vary gas pressures and accordingly the cycling rate of the gas operating system.
In one embodiment and depending on the orientation of the sleeve in the bore 52, only one of the cam surfaces 54 will engage the feature of the sleeve as it is rotated therein and the other one of the cam surfaces will engage the feature of the sleeve when the sleeve is inserted into the bore in an opposite orientation. In other words and in one non-limiting embodiment, when the sleeve is in a first orientation providing fluid communication with opening 50 with a first sized orifice only one of the cam surfaces will engage the feature of the sleeve thereafter and when the sleeve is removed and replaced into the bore 52 in a second different orientation such that a second sized orifice, different from the first, is in fluid communication with opening 50 and only the other one of the cam surfaces will make contact with the feature of the sleeve as it is rotated in bore 52. In one non-limiting configuration one of the cam surfaces is on one side of bore 52 and is inclined upwardly in a first direction while the other one of the cam surfaces is on an opposite side of the bore and is inclined downward in a second direction, which is in essence opposite to the first direction. Of course, numerous other configurations and orientations are contemplated and exemplary embodiments of the present invention contemplate variations of the configurations illustrated in the attached drawings. It is understood that the sleeve of the embodiment of
Referring now to
In one embodiment and in order to releasably retain the gas regulator 70 in either the first position or the second position a spring biased detent 80 is provided to engage complimentary openings 82 and 84 of the gas regulator 70. As illustrated, the spring biased detent 80 is configured for movement in the direction of arrows 86 and 88 and is biased in the direction of arrow 86 by a spring 90. In one embodiment, spring 90 contacts detent 80 at one end and a retaining pin 92 at the other end.
It is understood that the gas regulator 70 of the embodiment of
Referring now to
Referring now to
Gas regulator 70 provides a means for fluidly coupling opening 50 to a gas operating system of the firearm in a manner such that an orifice or opening coupling the bore of the barrel to the gas operating system can be varied such that the cycling rate of the firearm can be varied. In this embodiment, the gas regulator 70 has two openings 74 and 76 each of which has a different size or diameter thus varying the gas pressures or fluid communication between the barrel and the gas operating system if the firearm.
Still further and as illustrated in
In addition and when the gas regulator 70 is in the second position, the protruding head portion 73 provides a surface for applying a user applied force to move the gas regulator from the second position to the first position. On the other hand, the opposite end of the gas regulator 70 has a recess 77 that allows an operator to insert an object such as a round of ammunition into opening 72 via an opposite side of the gas block 12 and reposition the gas regulator from the first position into the second position.
In one embodiment and in order to releasably retain the gas regulator 70 in either the first position or the second position a spring biased detent 80 is provided to engage complimentary openings 82 and 84 of the gas regulator 70.
As illustrated, the spring biased detent 80 is configured for movement in the direction of arrows 86 and 88 and is biased in the direction of arrow 86 by a spring 90. In one embodiment, spring 90 contacts detent 80 at one end and a retaining pin 92 at the other end. In addition and in this embodiment, openings 82 and 84 are located within a recessed area 85 located on gas regulator 70. This recessed area or undercut area 85 prevents carbon buildup within opening 72 from impeding the movement of gas regulator 70 within opening 72.
It is understood that the gas regulator 70 of the embodiments illustrated in at least
While the invention has been described with reference to an exemplary embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed as the best mode contemplated for carrying out this invention, but that the invention will include all embodiments falling within the scope of the present application.
This application is a continuation of U.S. patent application Ser. No. 15/063,016 filed on Mar. 7, 2016, which is a continuation of U.S. patent application Ser. No. 13/524,577 filed on Jun. 15, 2012, now U.S. Pat. No. 9,389,034 and U.S. patent application Ser. No. 13/524,591 filed on Jun. 15, 2012, now U.S. Pat. No. 9,410,755 each of which claims the benefit of U.S. Provisional Patent Application Ser. Nos. 61/498,226 filed Jun. 17, 2011 and U.S. Provisional Patent Application Ser. No. 61/594,075 filed Feb. 2, 2012, the contents each of which are incorporated herein by reference thereto. This application is also a continuation of U.S. patent application Ser. No. 13/524,591 filed on Jun. 15, 2012, now U.S. Pat. No. 9,410,755 which claims the benefit of U.S. Provisional Patent Application Ser. Nos. 61/498,226 filed Jun. 17, 2011 and U.S. Provisional Patent Application Ser. No. 61/594,075 filed Feb. 2, 2012, the contents each of which are incorporated herein by reference thereto.
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| Number | Date | Country | |
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| Parent | 15063016 | Mar 2016 | US |
| Child | 15230994 | US | |
| Parent | 13524577 | Jun 2012 | US |
| Child | 15063016 | US | |
| Parent | 13524591 | Jun 2012 | US |
| Child | 13524577 | US |
