Oct 21, 2025

US12449229 - Bottom chamber firing revolver

A revolver having a frame, a cylinder, a trigger assembly, and a barrel. The cylinder is rotatable on its axis and is indexed to position a chamber at the six o'clock position. The barrel is in line with the chamber at the six o'clock position, allowing the revolver to fire a projectile from the six o'clock position, thus causing less barrel rise.

Inventors: James J. Kempf
Filing date: 2023-06-20

revolverfirearmmechanism

The patent describes a revolver design where the cylinder is indexed to align a chamber with the barrel at the six o’clock position, which minimizes barrel rise during firing. This configuration includes a frame, a rotatable cylinder with multiple chambers, an extraction rod assembly, and a trigger assembly, all working together to enhance shooting stability.

Claim 1

A revolver comprising: a frame; a cylinder includes a plurality of chambers, indexing detents, an axis, and an axis bore, said cylinder is rotatably and axially retained in said frame; an extraction rod assembly including at least one extraction plate and a ratchet, said extraction rod is retained in said cylinder; a barrel including a bore, said barrel is coupled to said frame; a cylinder pivot having said cylinder rotatably retained on one end, a circular outer perimeter of an opposing end of said cylinder pivot is pivotally retained in a bore formed in a front of said frame, said extractor rod extends from a front of said cylinder pivot on said one end, a front end of said extractor rod is in contact with a top of said barrel; and a trigger assembly coupled to said frame, said trigger assembly having a trigger, wherein said barrel bore is in alignment with one of said plurality of chambers when one of said plurality of chambers is in a six o’clock position of rotation of said cylinder. a frame; a cylinder includes a plurality of chambers, indexing detents, an axis, and an axis bore, said cylinder is rotatably and axially retained in said frame; an extraction rod assembly including at least one extraction plate and a ratchet, said extraction rod is retained in said cylinder; a barrel including a bore, said barrel is coupled to said frame; a cylinder pivot having said cylinder rotatably retained on one end, a circular outer perimeter of an opposing end of said cylinder pivot is pivotally retained in a bore formed in a front of said frame, said extractor rod extends from a front of said cylinder pivot on said one end, a front end of said extractor rod is in contact with a top of said barrel; and a trigger assembly coupled to said frame, said trigger assembly having a trigger, wherein said barrel bore is in alignment with one of said plurality of chambers when one of said plurality of chambers is in a six o’clock position of rotation of said cylinder.

Google Patents

https://patents.google.com/patent/US12449229

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12449229