Firearm Magazine Loader

Patent No. US10900730 (titled "Firearm Magazine Loader") was filed by Elite Tactical Systems Group Llc on Jan 3, 2020.

What is this patent about?

’730 is related to the field of firearm accessories, specifically devices designed to simplify and expedite the loading of ammunition into magazines. High-capacity magazines, particularly those for double-stack firearms, require significant force to load due to spring tension and cartridge binding. This can be time-consuming and physically demanding, leading to user fatigue and discomfort. The patent addresses the need for a magazine loader that reduces the effort and time required to load magazines, especially high-capacity double-stack magazines.

The underlying idea behind ’730 is to use a specially shaped internal chamber within the loader body to guide and rotate cartridges into the correct orientation for insertion into the magazine. This chamber features angled walls that force the cartridge to pivot as it's pushed forward, aligning it with the magazine's feed lips. This pivoting action reduces the force needed to overcome spring tension and cartridge binding, making loading easier and faster. The loader also incorporates a self-centering mechanism to accommodate magazines of varying dimensions.

The claims of ’730 focus on a firearm magazine loader comprising a body with a round positioning chamber and a magazine well. The round positioning chamber is defined by a multi-sectional front wall and a rear wall with different angles, causing the chamber to narrow and requiring the ammunition to pivot. A projection with rails and ribs extends from the body to carry ammunition into the chamber. At least one frontal positioner is included to position the magazine within the magazine well.

In practice, the user places rounds of ammunition onto the projection, which has rails designed to hold them securely. A plunger is then used to push the rounds through the round positioning chamber. As the rounds move through this chamber, the angled walls force them to rotate, aligning them with the feed lips of the magazine inserted in the magazine well. The frontal positioner ensures the magazine is properly positioned against the rear of the magazine well, further aiding in alignment and smooth loading. The loader can be made from molded plastic or other suitable materials.

Unlike traditional magazine loaders that may simply push rounds straight into the magazine, ’730 employs a controlled pivoting action to minimize the force required. The multi-sectional front and rear walls of the round positioning chamber are key to achieving this controlled rotation. The self-centering mechanism, using frontal and lateral positioners, also distinguishes this design by accommodating a wider range of magazine sizes and ensuring proper alignment, which reduces the likelihood of jams or misfeeds during the loading process.

How does this patent fit in bigger picture?

Technical landscape at the time

In the mid-2010s when ’730 was filed, at a time when firearm magazines were typically manufactured with varying dimensions and tolerances, magazine loaders commonly relied on manual force to overcome spring tension and properly align ammunition with the magazine feed lips. When hardware or software constraints made the design of a universal magazine loader non-trivial, loaders often incorporated features to accommodate dimensional variations in magazines from different manufacturers.

Novelty and Inventive Step

Claims 1-20 were pending. Claims 1-20 were rejected for nonstatutory double patenting over U.S. Patent No. 10,317,154. The examiner stated that claims 1-20 were allowable over the prior art of record other than the double patenting rejection. The application proceeded to allowance, and the examiner provided a statement of reasons for allowance.

Claims

This patent contains 20 claims, with independent claims numbered 1, 10, and 17. The independent claims generally focus on a firearm magazine loader comprising a body defining a magazine well and a round positioning chamber, a projection for carrying ammunition, and variations in the shape and configuration of these components. The dependent claims elaborate on specific features and configurations of the magazine loader, such as the shape of the front and rear walls of the round positioning chamber, the inclusion of positioners, and the addition of a plunger.

Key Claim Terms New

Definitions of key terms used in the patent claims.

Term (Source)Support for SpecificationInterpretation
Frontal positioner
(Claim 1)
“The front of the body includes at least one frontal positioner that can flex to accommodate magazines of different front-to-back dimensions. In various embodiments, the frontal positioner(s) and the lateral positioner(s) have one portion extending from or connected to the body to form a flex point with the remainder of the positioner being free. The pressure applied by the frontal positioner(s) ensures that the magazine is pushed against the back wall of the magazine well.”A component of the loader that is configured to contact and position a magazine within the magazine well, specifically pushing the magazine toward the rear of the magazine well.
Magazine well
(Claim 1, Claim 10, Claim 17)
“Likewise, the bottom end of the body defines a well opening for receiving the feed end of a magazine. Because of dimensional variations in magazines for different firearms, the portion of the loader body defining the magazine well includes a set of feed lip guides, the frontal positioner(s), and the lateral positioner(s) to properly position and securely retain magazines in the magazine well.”A defined space within the body of the loader that is shaped and dimensioned to receive and hold a firearm magazine.
Pair of rails
(Claim 1, Claim 10, Claim 17)
“A set of rails extend outwardly from the projection and, together with the back wall, serve as the side walls defining a channel. A rib extends from each of the side walls into the channel. The rib is positioned and dimensioned to engage the extractor groove of the casing of a round of ammunition.”Two raised guides on the projection that support and guide rounds of ammunition.
Push bar
(Claim 10, Claim 17)
“A tab extends below the plunger to create a push bar for engaging the rounds of ammunition carried by the projection. The length of the push bar is generally equal to the depth of the round positioning chamber. The bottom of the push bar is contoured to cradle a round of ammunition.”A component of the plunger that contacts and applies force to a round of ammunition to push it into the magazine.
Round positioning chamber
(Claim 1, Claim 10, Claim 17)
“Turning to the internal geometry of the loader, the body of the loader defines a round positioning chamber and a magazine well. The round positioning chamber has a multi-section front wall and a multi-section rear wall. The front wall top section is substantially parallel to the angle of the projection. The rear wall top section is a continuation of the projection rear wall.”A defined space within the body of the loader where rounds of ammunition are positioned and oriented before being loaded into a magazine.

Litigation Cases New

US Latest litigation cases involving this patent.

Case NumberFiling DateTitle
2:25-cv-00747Sep 2, 2025Elite Tactical Systems, LLC v. Ecom Elite LLC et al

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US10900730

ELITE TACTICAL SYSTEMS GROUP LLC
Application Number
US16733295
Filing Date
Jan 3, 2020
Status
Granted
Expiry Date
Dec 21, 2037
External Links
Slate, USPTO, Google Patents