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US4503632A Expired / Lapsed US ⏱️ 0.0 years remaining

Recoil reducing mechanism for shotguns

Assignee: Individual
•
Filing: 1983-08-12
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Granted: 1985-03-12
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Expires: 2003-08-12
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Abstract

Abstract Disclosed is a recoil reducing mechanism for use in shotguns. The mechanism utilizes explosive gases from the shotgun barrel which are conveyed through gas passageways into a chamber within an attached cylinder. The cylinder is provided with a slidable piston which moves rearwardly under the pressure of the exploding gases. Gas pressure acting on a front plug of the cylinder creates a force which counteracts the recoil force of the shot shoulder. The mechanism also includes a compression spring which is rearward of the piston and between the piston and a breech plug installed in the breech end of the cylinder. The compression spring serves to return the piston into a battery position. The front end plug is provided with a resilient stop means which cushions the piston as it returns under the action of the compression spring. The invention also includes a method for converting over-under type double barrel shotguns or single barrel type combination shotguns to include the recoil reducing mechanism.

Inventors

  • 👤 James W. Cuevas

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 20:53
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/28

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 226 words
A recoil reducing mechanism for use in shotguns having a barrel with a muzzle end and a breech end, the breech end of the barrel being mounted in a block, comprising: a tubular cylinder for connection to the shotgun in a position approximately parallel to the barrel; the tubular cylinder having an inside bore, a front end and a breech end, the breech end of the cylinder being connected to the block of the shotgun; gas passage means interconnecting the barrel and cylinder for allowing explosive gases from the barrel to expand into the cylinder near the front end of the cylinder; a piston slidably held within the bore of the cylinder, the piston having a relatively close fit therein; a breech plug mounted at the breech end of the cylinder to close the breech end of the cylinder; a front plug mounted at the front end of the cylinder, to close the front end of the cylinder; the front plug including a resilient stop means having a resilient housing connected to the front plug, a shroud surrounding the resilient bushing, and a fastener connecting the resilient bushing shroud and front plug together as an assembly; and a compression spring between the breech end of the cylinder and the piston for returning the piston toward the front end of the cylinder and into a battery position.
Claim 2
Dependent Claim 226 words
A recoil reducing mechanism for use in shotguns having a barrel with a muzzle end and a breech end, the breech end of the barrel being mounted in a block, comprising: a tubular cylinder for connection to the shotgun in a position approximately parallel to the barrel; the tubular cylinder having an inside bore, a front end and a breech end, the breech end of the cylinder being connected to the block of the shotgun; gas passage means interconnecting the barrel and cylinder for allowing explosive gases from the barrel to expand into the cylinder near the front end of the cylinder; a piston slidably held within the bore of the cylinder, the piston having a relatively close fit therein; a breech plug mounted at the breech end of the cylinder to close the breech end of the cylinder; a front plug mounted at the front end of the cylinder, to close the front end of the cylinder; the front plug including a resilient stop means having a resilient housing connected to the front plug, a shroud surrounding the resilient bushing, and a fastener connecting the resilient bushing shroud and front plug together as an assembly; and a compression spring between the breech end of the cylinder and the piston for returning the piston toward the front end of the cylinder and into a battery position.

References Cited (Backward Citations)

US2679192A Cited
US3018694A Cited
US3650060A Cited
US4088057A Cited
US4156979A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-03-11 1988-09-10 1989-03-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-03-11 1992-09-10 1993-03-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-03-11 1996-09-10 1997-03-12 $7700.00 Window Closed / Lapsed

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