Obviousness — US Patent 11857064

I will now analyze the obviousness of US patent 11857064 under 35 U.S.C. § 103, drawing upon the provided prior art citations and keywords. The analysis will focus on identifying combinations of prior art references that would render the independent claims (Claim 1 and Claim 16) obvious to a person having ordinary skill in the art (PHOSITA), along with the motivation for such combinations.

The "Prior art keywords" provided by the patent itself are: "tool attachment," "receiver," "attachment device," "actuator," and "pin." The patent also lists numerous citations that were considered by the examiner, which are prime candidates for an obviousness analysis.

General Understanding of a PHOSITA in this field:
A PHOSITA in the field of tool attachment systems would possess knowledge of various quick-release mechanisms, belt clips, holsters, pouches, and attachment methods for carrying tools and items on a person or at a job site. They would be motivated to improve convenience, security, and ergonomic aspects of such systems, including ease of attachment/detachment, stability, and rotational flexibility.

Obviousness Analysis of Claim 1

Claim 1: A tool attachment system, comprising: a receiver configured to attach to a belt of a user, the receiver comprising a channel and a locking hole; a tool attachment device configured to be releasably coupled to the receiver, the tool attachment device comprising: a body comprising a front surface and a rear surface; a locking mechanism protruding past the rear surface of the body and into the locking hole of the receiver when the locking mechanism is in a locked position; and a disk mating structure protruding outward from the rear surface of the body; wherein the disk mating structure is configured to slidably engage the channel of the receiver; a pouch coupled to the body of the tool attachment device, the pouch configured to support a tool; and an actuator coupled to the tool attachment device; wherein the channel of the receiver is sized to slidably receive the disk mating structure such that the tool attachment device is supported from the receiver; wherein the actuator is configured to move the locking mechanism from the locked position to an unlocked position when a force is applied to the actuator, and wherein, in the unlocked position, the locking mechanism is moved out of the locking hole in the receiver and the tool attachment device is allowed to move relative to the receiver such that the disk mating structure slides upward and out of the channel of the receiver to release the tool attachment device from the receiver.

Proposed Combination for Claim 1:

Primary Reference: US8499986B2 (Hultafors Group Ab) - "Quick-release arrangement"
Secondary Reference 1: US2990987A (Handler) - "Swivel holster" or US5622296A (Pirhonen) - "Releasable swivel holder for personal articles"
Secondary Reference 2: US6098858A (Laugesen) - "Holder for receiving an object provided with a button" or US5054170A (Otrusina) - "Connector engageable in multiple positions and releasable in only one position"

Analysis:

US8499986B2 (Hultafors Group Ab): This patent describes a quick-release arrangement for attaching an accessory to a belt. It discloses a support (receiver) attachable to a belt, and an accessory holder (tool attachment device) configured to be connected to the support. The support includes a channel and the accessory holder has a mating structure configured to be received in the channel. The system includes a locking mechanism (e.g., a locking element) and an actuator (e.g., a push-button) to release it. The accessory holder can be a tool holder or a pouch. The patent shows a general quick-release mechanism with a coupling member (disk-like) sliding into a slot (channel) and a locking element.
US2990987A (Handler) or US5622296A (Pirhonen): These patents describe swivel mechanisms for articles attached to a belt. US2990987A discloses a swivel holster for a gun, allowing rotation. US5622296A describes a releasable swivel holder for personal articles, allowing the attached article to pivot. Although these references may not explicitly show a disk and channel in the same way as US11857064, they demonstrate the well-known concept of providing rotational movement for belt-mounted articles. The Hultafors patent (US8499986B2) also describes a "coupling member" which could inherently allow for some rotation within a channel if designed appropriately.
US6098858A (Laugesen) or US5054170A (Otrusina): These references teach actuators (buttons) for releasing a holder. US6098858A describes a holder for an object provided with a button, where pressing the button releases the object. US5054170A describes a connector that is engageable in multiple positions and releasable in only one position, potentially involving a single-action release. The concept of an actuator (button) initiating both the unlocking and disengagement with a single fluid motion is also generally known in quick-release mechanisms.

Motivation for Combination:
A PHOSITA, seeking to improve the convenience and versatility of the quick-release system taught by Hultafors (US8499986B2), would be motivated to incorporate a swiveling feature from Handler (US2990987A) or Pirhonen (US5622296A) to allow a tool pouch to remain upright as a user moves, preventing spills or snagging. The Hultafors patent already discloses a channel and coupling member, and adapting this structure to permit pivotal movement by making the coupling member and channel circular or partially circular is a matter of routine design choice.

Furthermore, to enhance user experience, a PHOSITA would seek to streamline the release process. The Hultafors patent describes an actuator for release. Integrating a button-activated release mechanism, as seen in Laugesen (US6098858A) or Otrusina (US5054170A), that simultaneously disengages the locking mechanism and allows the tool attachment device to slide out of the receiver in a single upward motion, would be an obvious design choice to improve ease of use and provide a "single fluid motion" for removal. This is a common design goal for quick-release systems, ensuring that a user doesn't need two separate actions (unlock, then remove).

The combination of a quick-release system with a locking pin (as implied by Hultafors or other general prior art) and a channel/disk mating structure to achieve both slidable engagement and a combined unlock-and-release motion via an actuator would be well within the capabilities of a PHOSITA.

Obviousness Analysis of Claim 16

Claim 16: A tool attachment system, comprising: a receiver configured to attach to a belt of a user, the receiver comprising a channel; a tool attachment device configured to be releasably coupled to the receiver, the tool attachment device comprising: a body; a locking mechanism protruding from the body, the locking mechanism locking the tool attachment device against separation from the receiver when the locking mechanism is in a locked position; and a mating structure protruding outward from the body and configured to slidably engage the channel of the receiver; an actuator coupled to the tool attachment device; and a pouch coupled below the body of the tool attachment device, the pouch configured to support a tool; wherein the channel of the receiver is sized to slidably receive the mating structure such that the tool attachment device is supported from the receiver; wherein the actuator is configured to move the locking mechanism to an unlocked position when a force is applied to the actuator, and wherein, when the locking mechanism in the unlocked position, the tool attachment device is slidable relative to the receiver such that the mating structure can move upward and out of the channel of the receiver to release the tool attachment device from the receiver; wherein a lower end of the actuator is located below the mating structure and above the pouch.

Proposed Combination for Claim 16:

Primary Reference: US8499986B2 (Hultafors Group Ab) - "Quick-release arrangement"
Secondary Reference 1: US6880794B1 (Kahn) - "Universal tool holder" or US20080083803A1 (Brantner) - "Belt supported glove and tool holder"
Secondary Reference 2: US6098858A (Laugesen) - "Holder for receiving an object provided with a button"

Analysis:

US8499986B2 (Hultafors Group Ab): As discussed for Claim 1, Hultafors provides a foundation with a receiver (support) attachable to a belt, a channel, a tool attachment device (accessory holder) with a mating structure, a locking mechanism, and an actuator for release. It supports the concept of the mating structure sliding in a channel for support and release.
US6880794B1 (Kahn) or US20080083803A1 (Brantner): These references demonstrate the coupling of a pouch to a tool attachment system and how such systems are structured. Kahn describes a universal tool holder designed to be attached to a person's belt, allowing tools to be carried. Brantner describes a "belt supported glove and tool holder," which clearly shows a pouch or holder attached to a belt-mounted component. These references illustrate the common practice of attaching a pouch or tool holder below the main attachment mechanism to hang from the user's belt.
US6098858A (Laugesen): Laugesen teaches a holder for receiving an object with a button, where the button releases the object. This supports the general idea of an actuator button.

Key distinguishing feature of Claim 16: "wherein a lower end of the actuator is located below the mating structure and above the pouch."

Motivation for Combination:
Starting with the quick-release system of Hultafors (US8499986B2), which provides the fundamental receiver, channel, mating structure, locking mechanism, and actuator, a PHOSITA would naturally consider how to integrate a pouch or tool holder. References like Kahn (US6880794B1) or Brantner (US20080083803A1) teach the attachment of a pouch or tool holder to a belt-mounted system. It is conventional to attach pouches below the primary attachment point to hang freely.

Given that the purpose of the actuator is to release the locking mechanism and allow the tool attachment device to be removed, a PHOSITA would be motivated to place the actuator in an easily accessible and ergonomically sensible location. Locating the actuator's lower end below the mating structure (e.g., the disk) and above the pouch, as described in Claim 16, is a logical design choice for a PHOSITA. This placement provides a clear space for the user to actuate the release button without obstruction from the pouch or the belt, while still being conveniently positioned for a single-motion release (as discussed in the context of Claim 1). This specific positioning is a matter of routine engineering optimization for accessibility and ease of use in a tool attachment system, rather than an inventive step. A PHOSITA would understand that an actuator needs to be readily available for a user to operate it, and positioning it between the main attachment point (mating structure) and the hanging pouch ensures this accessibility and prevents accidental activation or obstruction.

Therefore, combining the core quick-release functionality of Hultafors with the known practice of attaching pouches below the primary coupling point, and positioning the actuator for convenient and unobstructed access, would be obvious to a PHOSITA.