Dual-Profile Mounting Rail with Picatinny Compatibility

This application claims the benefit of and priority to U.S. Provisional Patent Application No. 63/660,588, filed on Jun. 17, 2024, the entirety of which is incorporated herein by reference.

The present invention relates to mounting systems for accessories and, more particularly, to a rail device with multiple dovetail profiles and grooves for interfacing with ARCA Swiss, NATO Accessory Rail, and Picatinny rail standards.

The increasing reliance on standardized mounting systems for accessories in fields such as shooting, hunting, photography, and military applications has revealed significant shortcomings in current solutions. These mounting systems, which rely on dovetail-derived profiles, include widely adopted standards such as the NATO Accessory Rail (NAR), governed by STANAG 4694, and the ARCA Swiss dovetail standard, commonly used in photography. While each system is effective within its domain, they lack cross-compatibility, creating challenges for users who operate across multiple fields or require equipment that bridges these applications.

Current solutions that attempt to address the need for compatibility often involve bulky or redundant designs. For instance, dual-profile systems typically place dovetail profiles linearly or side-by-side, resulting in devices with unnecessarily large footprints. These designs increase the weight and complexity of mounting systems, which is particularly undesirable in shooting and military applications where size, weight, and ease of use are critical. A larger mounting system not only adds to the load carried by the user but also reduces maneuverability, efficiency, and overall practicality in the field. Furthermore, such systems often require adapters, which add more components, increase the risk of mechanical failure, and create points of instability.

Another limitation of existing systems arises from the differing methods by which accessories engage with the dovetail profiles. ARCA Swiss profiles, primarily used in photography, employ a friction-based clamping mechanism that allows sliding adjustments along the rail length. While this system provides flexibility and precision in positioning, it lacks the fixed locking features required in shooting and military environments, where recoil, vibration, and harsh conditions necessitate rigid and repeatable accessory placement. In contrast, the NATO Accessory Rail incorporates discrete grooves that accommodate locking pins or mechanical clamps to prevent longitudinal movement.

The lack of interoperability between ARCA Swiss and NATO Accessory Rail standards forces users to rely on multiple mounting rails, adapters, or accessory systems to achieve the desired functionality. This introduces logistical inefficiencies, as users must carry additional components, which adds to costs, weight, and complexity. These challenges are exacerbated in situations where quick transitions between standards are required, such as in hybrid applications where equipment must be shared between shooting platforms and photographic tripods. Existing solutions fail to provide a compact, lightweight, and versatile mounting rail capable of accommodating both standards without compromise.

In light of these limitations, there is a clear need for a streamlined solution that integrates both NATO and ARCA Swiss standards into a single mounting system. Such a solution would reduce weight, improve portability, and eliminate the need for redundant rails or adapters while maintaining the performance and reliability required in demanding environments.

It is within this context that the present invention is provided.

The present invention provides a mounting rail device comprising a rectangular body with a top surface, a bottom surface, a first pair of opposed side edges, and a second pair of opposed side edges. The invention features a first dovetail profile formed along the first pair of opposed side edges, the profile comprising continuous sloped surfaces configured to engage with a first clamping mechanism. A second dovetail profile is formed along the second pair of opposed side edges, wherein this profile is also continuous and oriented perpendicularly to the first dovetail profile. The bottom surface of the rectangular body includes at least two grooves spaced apart at a predefined distance and configured to interlock with a Picatinny rail attachment mechanism. This design allows for multiple mounting options within a compact and integrated structure.

The combination of dovetail profiles oriented perpendicularly and grooves on the bottom surface provides versatile engagement with accessory clamping systems, including ARCA Swiss-compatible mounts, NATO Accessory Rail standards, and Picatinny rail interfaces. The compact and lightweight structure reduces the need for multiple mounting components and ensures secure attachment while maintaining adjustability where required.

In some embodiments, the first dovetail profile is configured to conform to the ARCA Swiss standard. This allows the rail device to engage ARCA Swiss-compatible clamps, commonly used in photography, providing sliding adjustability and reliable friction-based locking.

In further embodiments, the second dovetail profile conforms to the NATO Accessory Rail standard, as defined by STANAG 4694. This enables secure mechanical clamping engagement with NATO-compatible mounts, typically used in military and shooting applications.

In further embodiments, the grooves on the bottom surface are spaced apart to comply with the Picatinny rail standard. The predefined spacing ensures compatibility with Picatinny rail systems, facilitating secure locking engagement.

In yet further embodiments, the grooves on the bottom surface each include a flat base and vertical sidewalls configured to interlock with a Picatinny-compatible accessory mount having corresponding locking pins. This configuration provides reliable and repeatable positioning of accessories.

In some embodiments, the mounting rail device further includes chamfered edges between the top surface and each of the first and second dovetail profiles. This feature reduces sharp edges, improving handling and minimizing interference with accessory clamping mechanisms.

In further embodiments, the first dovetail profile and the second dovetail profile each include a pair of opposed sloped surfaces that are symmetrically angled. The symmetrical design ensures uniform clamping force for consistent and stable engagement with accessory clamps.

In some embodiments, the rectangular body includes a central through-hole extending from the top surface to the bottom surface to accommodate a fastening element. The through-hole allows the mounting rail to be securely fastened to a surface or underlying structure.

In yet further embodiments, the central through-hole is elongated in shape to allow for adjustable positioning of the mounting rail device relative to a fastening element. This provides flexibility in mounting configurations, enabling precise alignment where required.

In further embodiments, the rectangular body comprises a recess formed in the top surface to reduce the overall weight of the device. This enhances portability without compromising the rail's structural integrity.

In some embodiments, the grooves on the bottom surface are parallel to the second dovetail profile. This orientation ensures that the Picatinny rail interface does not interfere with the dovetail engagement.

In further embodiments, the mounting rail device includes a first clamping mechanism configured to engage with the first dovetail profile. This facilitates secure attachment of accessories designed for the ARCA Swiss standard.

In yet further embodiments, the mounting rail device includes a second clamping mechanism configured to engage with the second dovetail profile. This allows for secure attachment of NATO-compatible accessories.

In some embodiments, the rectangular body is formed from a lightweight metal material selected from the group consisting of aluminum, titanium, and magnesium. The choice of lightweight material provides durability while minimizing additional weight.

Common reference numerals are used throughout the figures and the detailed description to indicate like elements. One skilled in the art will readily recognize that the above figures are examples and that other architectures, modes of operation, orders of operation, and elements/functions can be provided and implemented without departing from the characteristics and features of the invention, as set forth in the claims.

The following is a detailed description of exemplary embodiments to illustrate the principles of the invention. The embodiments are provided to illustrate aspects of the invention, but the invention is not limited to any embodiment. The scope of the invention encompasses numerous alternatives, modifications and equivalent; it is limited only by the claims.

Numerous specific details are set forth in the following description in order to provide a thorough understanding of the invention. However, the invention may be practiced according to the claims without some or all of these specific details. For the purpose of clarity, technical material that is known in the technical fields related to the invention has not been described in detail so that the invention is not unnecessarily obscured.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As used herein, the term “and/or” includes any combinations of one or more of the associated listed items.

As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well as the singular forms, unless the context clearly indicates otherwise.

It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

When a feature or element is described as being “on” or “directly on” another feature or element, there may or may not be intervening features or elements present. Similarly, when a feature or element is described as being “connected,” “attached,” or “coupled” to another feature or element, there may or may not be intervening features or elements present. The features and elements described with respect to one embodiment can be applied to other embodiments.

The use of spatial terms, such as “under,” “below,” “lower,” “over,” “upper,” etc., is used for ease of explanation to describe the relationship between elements when the apparatus is in its proper orientation.

The terms “first,” “second,” and the like are used to distinguish different elements or features, but these elements or features should not be limited by these terms. A first element or feature described can be referred to as a second element or feature and vice versa without departing from the teachings of the present disclosure.

The term “dovetail profile” refers to any surface configuration that includes angled or sloped surfaces configured to engage with a clamping mechanism. This includes, but is not limited to, dovetail profiles that conform to industry standards such as the ARCA Swiss standard or the NATO Accessory Rail standard defined under STANAG 4694. In one example implementation, the dovetail profile may have symmetrical sloped surfaces angled at 45 degrees, allowing it to engage with a friction-based clamp or mechanical locking mechanism.

The term “groove” refers to any recessed feature formed in the bottom surface of the rectangular body. This includes, but is not limited to, grooves configured to interlock with Picatinny rail systems or similar fastening mechanisms. In one example implementation, the grooves may include a flat base and vertical sidewalls spaced at predefined intervals to comply with the Picatinny rail standard as defined under MIL-STD-1913. The grooves may engage with corresponding locking pins or clamps to provide a secure mechanical attachment.

The term “rectangular body” refers to a component having a generally rectangular shape defined by a top surface, a bottom surface, and two pairs of opposed side edges. This includes, but is not limited to, bodies made from materials such as aluminum, titanium, or magnesium. In one example implementation, the rectangular body may be machined from aircraft-grade aluminum to provide a lightweight yet durable structure suitable for use in photography, military, or shooting applications.

The term “predefined distance” refers to any fixed spacing between two or more grooves or other structural features that facilitates compatibility with a given standard. This includes, but is not limited to, the standardized spacing defined for Picatinny rail systems. In one example implementation, the predefined distance may correspond to the spacing of 5.23 mm between adjacent slots, as specified by MIL-STD-1913.

The term “clamping mechanism” refers to any device configured to secure a component to a rail profile using mechanical engagement, friction, or both. This includes, but is not limited to, ARCA Swiss-compatible clamps, NATO-standard clamps, and Picatinny-compatible locking mechanisms. In one example implementation, the clamping mechanism may comprise a screw-tightened lateral clamp that applies force to the dovetail profile's sloped surfaces to achieve a secure connection.

In one example implementation, the rectangular body may further include a surface coating to improve corrosion resistance. This coating may include anodized finishes for aluminum components, titanium nitride coatings for titanium components, or any equivalent surface treatment to enhance durability and reduce wear. In yet another implementation, the rectangular body may include a central through-hole or elongated slot to accommodate a fastener, allowing the mounting rail to be affixed to a surface or underlying structure.

The invention may be manufactured using machining, die-casting, additive manufacturing, or any other suitable fabrication process. In some implementations, weight-reducing features, such as recessed portions or chamfered edges, may be incorporated into the rectangular body to further optimize the overall weight and performance of the device. The dimensions of the rectangular body, dovetail profiles, and grooves may vary depending on the desired application and compatibility with existing mounting standards.

The present invention relates to a mounting rail device designed to address the shortcomings of existing attachment systems used in shooting, photography, and military applications. Current solutions often suffer from a lack of interoperability between standardized mounting profiles, excessive weight, and unnecessary complexity. For instance, systems attempting to incorporate multiple mounting standards frequently rely on bulky or linear arrangements, which increase the device's footprint and introduce logistical challenges for users operating across multiple fields. Furthermore, the reliance on separate adapters for compatibility adds additional weight, cost, and points of mechanical failure.

The invention provides a compact, lightweight mounting rail device that integrates two dovetail-derived profiles and grooves for Picatinny rail compatibility into a single rectangular body. By incorporating a first dovetail profile along a first pair of opposed side edges and a second dovetail profile along a second pair of opposed side edges, the invention enables secure and reliable engagement with two distinct mounting standards. The first and second dovetail profiles are oriented perpendicularly to one another, allowing users to interface with different clamping mechanisms simply by rotating the device 90 degrees. In addition, the bottom surface of the rectangular body includes at least two grooves spaced apart at a predefined distance, providing compatibility with Picatinny rail systems.

This integrated design overcomes the limitations of prior art by eliminating the need for multiple separate rails or adapters, reducing weight, and simplifying the attachment of accessories. The perpendicular arrangement of dovetail profiles ensures that both ARCA Swiss and NATO Accessory Rail standards can be accommodated without increasing the rail's size or complexity. The inclusion of grooves on the bottom surface further enhances versatility by enabling mechanical engagement with Picatinny-compatible locking mechanisms, ensuring stable and repeatable positioning of accessories.

shows a perspective isometric view from below of a mounting rail device consisting of two dovetail-derived profiles of different dimensions integrated into a single rectangular design. The rail includes a rectangular bodyhaving a top surface, a bottom surface, a first pair of opposed side edges, and a second pair of opposed side edges.

The first pair of opposed side edgesfeature a first dovetail profile, while the second pair of opposed side edgesfeature a second dovetail profile. The first dovetail profileand the second dovetail profileare oriented perpendicularly to one another to facilitate attachment with multiple types of clamping mechanisms. The first dovetail profilemay, in some implementations, conform to the ARCA Swiss standard, while the second dovetail profilemay conform to the NATO Accessory Rail standard as defined by STANAG 4694. The profiles are continuous along their respective edges, providing secure engagement for clamping mechanisms.

The bottom surfaceof the rectangular bodyincludes a series of grooves. These groovesare spaced at predefined intervals to interlock with a Picatinny rail attachment mechanism. The groovesinclude a flat base and vertical sidewalls to facilitate mechanical locking engagement with corresponding Picatinny rail features, such as locking pins or clamps. While the figure shows four grooves, variations may include two or more grooves depending on the length of the mounting rail or specific application requirements. The groovesare parallel to the second dovetail profileand perpendicular to the first dovetail profileto ensure compatibility without interfering with the dovetail clamping mechanisms.

The rectangular bodymay be manufactured from lightweight, durable materials such as aluminum, titanium, or magnesium. In some embodiments, a surface coating such as anodization or titanium nitride may be applied to the rectangular bodyto improve corrosion resistance and reduce wear. Weight-reducing features, such as recesses in the top surface, may optionally be incorporated to reduce the overall weight of the rail without compromising structural integrity. A chamfered edge may be formed between the top surfaceand the first and second dovetail profilesandto improve handling and reduce sharp edges

Whiledepicts the rectangular bodywith continuous dovetail profiles along its edges, in some embodiments, the profiles may be segmented to accommodate specific clamping configurations. Similarly, while the grooveson the bottom surfaceare configured for Picatinny rail compatibility, other variants may include grooves or recesses for alternative attachment mechanisms. A central through-hole or elongated slot, not shown in this figure, may optionally be included in the rectangular bodyto accommodate fastening elements, such as bolts or screws, allowing the mounting rail device to be secured to an underlying surface.

The perpendicular arrangement of the first dovetail profileand the second dovetail profileallows for the mounting rail device to engage with different types of clamping mechanisms by simply rotating the rail 90 degrees.

shows the section view profile of the NATO Accessory Rail (NAR), as defined by NATO Standardization Agreement (STANAG) 4694. The NATO profile includes continuous sloped surfaces configured to engage with clamping mechanisms that utilize locking or mechanical engagement features. The symmetrical slopes provide consistent and reliable clamping force, while the defined geometry ensures secure attachment under mechanical stress. The NATO profileextends along the longer pair of opposed edgesof the rectangular bodyand is specifically designed to interface with NATO-compatible mounts or accessories.