Oct 7, 2025

US12435944 - Tubular archery bow riser

An archery bow is provided including opposing limbs and a riser. The riser can include a riser handle and one or more primary riser elongated elements extending away from the handle to respective limbs. The primary riser elongated elements can be straight, elongated round or other shaped tubes, rods or bars constructed optionally from a composite or other material. Vents can be included in ports of the riser to facilitate escape of air when riser elongated elements are installed in those ports. The riser can include one or more connector lugs disposed between tube portions to facilitate attachment of accessories to the elongated elements. The elongated elements can be bonded, adhered or otherwise fixed to the riser handle, struts, lugs and/or limb pockets, which can be constructed from a metal such as aluminum, titanium or an alloy, and which can handle significant moments and forces transferred via the elongated elements.

Assignee: Grace Engineering Corp.
Inventors: Nathaniel E. Grace, Casey W. Carew
Filing date: 2025-03-07

The patent describes a method for constructing an archery bow riser that includes a handle and elongated elements, which can be made from various materials and are designed to facilitate the attachment of accessories. It emphasizes the importance of vents for gas escape during the adhesive curing process, ensuring a secure bond between the components.

Claim 1

A method of making an archery bow or riser comprising: providing a riser handle including a first port bounded by a first sidewall and a first bottom, and a first limb strut including a second port bounded by a second sidewall; providing a round primary riser elongated element; applying an adhesive to at least one of the primary riser elongated element and the first port; installing the round primary riser elongated element in the first port and the second port to join the riser handle and the first limb strut, without the primary riser elongated element extending past the riser handle and the first bottom; providing a vent in at least one of the first port and the second port to provide fluid communication so that a gas can escape at least one of the adhesive, the first port, the second port, and the primary riser elongated element; and allowing the adhesive to cure. providing a riser handle including a first port bounded by a first sidewall and a first bottom, and a first limb strut including a second port bounded by a second sidewall; providing a round primary riser elongated element; applying an adhesive to at least one of the primary riser elongated element and the first port; installing the round primary riser elongated element in the first port and the second port to join the riser handle and the first limb strut, without the primary riser elongated element extending past the riser handle and the first bottom; providing a vent in at least one of the first port and the second port to provide fluid communication so that a gas can escape at least one of the adhesive, the first port, the second port, and the primary riser elongated element; and allowing the adhesive to cure.

Google Patents

https://patents.google.com/patent/US12435944

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12435944