May 5, 2026

US12618632 - Off-axis serpentine flow chamber for firearm suppressors

A firearm sound suppressor can include an outer housing that defines a bore axis and an inner wall disposed at least partially within the outer housing. The inner wall can be oriented along the bore axis and includes a cylindrical central chamber. An annular chamber can be disposed between the outer housing and the inner wall. At least one helical partition can be disposed in the annular chamber to define at least one interleaved helical pathway through the annular chamber. Each interleaved helical pathway includes a first forward helical segment, a reverse helical segment sharing a first common wall with the first forward helical segment, and a second forward helical segment sharing a second common wall with the reverse helical segment. The first and second common walls can be distinct from one another.

Assignee: HuxWrx Safety Co. LLC
Inventors: David Sanders, A. Kai Bradshaw, Russell Tobler
Filing date: 2025-02-19

firearmsuppressorammunition

The patent describes a firearm sound suppressor featuring an outer housing and an inner wall that creates a cylindrical central chamber, with an annular chamber in between. It includes at least one helical partition that forms interleaved helical pathways, enhancing sound suppression by utilizing distinct common walls between segments.

Claim 1

1 . A firearm sound suppressor comprising: an outer housing defining a bore axis; an inner wall disposed at least partially within the outer housing, the inner wall oriented about and centered along the bore axis and including a cylindrical central chamber; an annular chamber disposed between the outer housing and the inner wall; and at least one helical partition disposed in the annular chamber to define at least one interleaved helical pathway through the annular chamber, each of the at least one interleaved helical pathway including a first forward helical segment, a reverse helical segment sharing a first common wall with the first forward helical segment, and a second forward helical segment sharing a second common wall with the reverse helical segment, wherein the first common wall and the second common wall are distinct from one another. an outer housing defining a bore axis; an inner wall disposed at least partially within the outer housing, the inner wall oriented about and centered along the bore axis and including a cylindrical central chamber; an annular chamber disposed between the outer housing and the inner wall; and at least one helical partition disposed in the annular chamber to define at least one interleaved helical pathway through the annular chamber, each of the at least one interleaved helical pathway including a first forward helical segment, a reverse helical segment sharing a first common wall with the first forward helical segment, and a second forward helical segment sharing a second common wall with the reverse helical segment, wherein the first common wall and the second common wall are distinct from one another.

Google Patents

https://patents.google.com/patent/US12618632

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12618632