# US 2014/0190053 A1 · Light-weight firing control housing for revolver > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190053 A1 - Document ID: US20140190053A1 - Status: Published application - Kind: A1 - Application number: 13/735,651 - Filed: 2013-01-07 - Published: 2014-07-10 - Earliest claimed: 2013-01-07 - Assignees: Sturm, Ruger & Company, Inc. - Applicants: Sturm, Ruger & Company, Inc - Inventors: Joseph J. Zajk - Web page: https://patentgrep.com/patent/US20140190053A1 ## CPC - F41C 3/14: Revolvers (F41C3/10 takes precedence; sealing aspects F41A3/76; using a revolving drum magazine for feeding revolver-type guns other than revolvers F41A9/27; extractors or ejectors therefor F41A15/02) - Y10T 29/49826: Assembling or joining - F41C: SMALLARMS, e.g. PISTOLS, RIFLES (functional features or details common to both smallarms and ordnance, mountings therefor F41A; projecting missiles without use of explosive or combustible propellant charge F41B); ACCESSORIES THEREFOR - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A revolver with light-weight firing control housing includes a cylinder frame supporting a rotatable cylinder defining a plurality of cartridge-receiving chambers and a firing control housing made of a non-metallic material. The firing control housing attaches to the cylinder frame and supports firing control mechanism components, such as a trigger and a pivotable hammer actuated by the trigger. In one embodiment, the firing control housing may be made of a polymer and the cylinder frame may be metal. ## Claims ### Claim 1 A revolver with separable light-weight firing control housing comprising: a cylinder frame supporting a rotatable cylinder defining a plurality of cartridge-receiving chambers, the cylinder being received in a complementary configured opening defined by the cylinder frame; a separable firing control housing made of a non-metallic material and removably attached to the cylinder frame; a firing control mechanism comprising a hammer pivotably supported by the firing control housing for discharging the revolver; and a pair of forward facing concave shaped bearing surfaces disposed on the firing control housing that engage a mating pair of rearward facing complementary configured convex shaped bearing surfaces disposed on a rear portion of the cylinder frame for mounting the cylinder frame to the firing control housing; wherein the engaged pairs of concave and convex bearing surfaces are operable to absorb and distribute recoil forces from discharging the revolver to the firing control housing. ### Claim 2 (depends on 1) The revolver of claim 1, wherein the concave shaped bearing surface on the firing control housing includes portions that extend vertically above and below a center pin rod that rotatably supports the cylinder in the cylinder frame. ### Claim 3 (depends on 2) The revolver of claim 2, wherein the convex bearing surfaces of the cylinder frame includes portions that extend vertically above and below the center pin rod. ### Claim 4 (depends on 1) The revolver of claim 1, wherein the concave shaped bearing surfaces of the firing control housing are laterally spaced apart, the hammer being pivotably moveable between the pair of concave shaped bearing surfaces. ### Claim 5 (depends on 1) The revolver of claim 1, wherein the pair of convex shaped bearing surfaces are formed on an axially elongated bulbous portion of the cylinder frame extending rearward from the cylinder frame. ### Claim 6 (depends on 5) The revolver of claim 5, wherein the bulbous portion of the cylinder frame has a symmetrical shape. ### Claim 7 (depends on 5) The revolver of claim 5, further comprising a cylinder release latch disposed on the bulbous portion of the cylinder frame. ### Claim 8 (depends on 1) The revolver of claim 1, wherein the concave shaped bearing surfaces of the firing control housing are each defined on a portion of a vertically extending continuous bearing surface that extends for at least a full height of the cylinder. ### Claim 9 (depends on 8) The revolver of claim 8, wherein each of the vertically extending continuous bearing surface of the firing control housing originate on top at a point above the cylinder and continue downwards therefrom. ### Claim 10 (depends on 1) The revolver of claim 1, wherein the cylinder frame is made of a metallic material. ### Claim 11 (depends on 1) The revolver of claim 1, wherein the firing control housing is made of a polymer. ### Claim 12 (depends on 1) The revolver of claim 1, the firing control housing includes an integral grip tang configured for mounting a hand grip thereto. ### Claim 13 (depends on 1) The revolver of claim 1, wherein the firing control housing includes a forward portion having a threaded metallic insert for receiving a complementary threaded retaining pin that pivotably mounts a cylinder crane to the revolver for rotationally supporting the cylinder, the retaining pin being operably engaged with a swing arm of the cylinder crane and a lower lobed portion of the cylinder frame extending below the cylinder, the retaining pin attaching the cylinder frame and swing arm to the forward portion of the firing control housing. ### Claim 14 (depends on 1) The revolver of claim 1, wherein the firing control housing includes an integral trigger guard. ### Claim 15 (depends on 1) The revolver of claim 1, further comprising a trigger for actuating the hammer, the trigger being pivotably mounted to the firing control housing. ### Claim 16 A revolver with separable light-weight firing control housing comprising: a metal cylinder frame having a rear and defining an opening receiving a rotatable cylinder, the cylinder rotatably supported in the opening by the cylinder frame and defining a plurality of cartridge-receiving chambers; a separable firing control housing supporting the cylinder frame, the firing control housing being made of a non-metallic material and including a rear grip tang configured for mounting a hand grip; a trigger pivotably mounted to the firing control housing; a spring-biased hammer pivotably mounted to the firing control housing, the hammer being movable to a cocked position by the trigger; and a pair of laterally spaced forward facing concave shaped bearing surfaces disposed on the firing control housing that abuttingly engage a mating pair of laterally spaced rearward facing complementary configured convex shaped bearing surfaces disposed on the rear of the cylinder frame for securing the cylinder frame to the firing control housing; wherein the engaged pairs of concave and convex bearing surfaces are operable to absorb and distribute recoil forces from discharging the revolver to the firing control housing. ### Claim 17 (depends on 12) The revolver of claim 12, wherein the firing control housing further includes a laterally spaced pair of forward facing upper bearing surfaces disposed on the firing control housing above the concave shaped bearing surfaces that abuttingly engage a mating pair of rearward facing upper bearing surfaces on the rear of the cylinder frame disposed above the convex shaped bearing surfaces. ### Claim 18 (depends on 17) The revolver of claim 17, wherein the upper bearing surfaces of the firing control housing are positioned forward of concave shaped bearing surfaces. ### Claim 19 (depends on 18) The revolver of claim 18, wherein the upper bearing surfaces of the firing control housing continue and extend downwards forming continuous bearing surfaces that include the concave shaped bearing surfaces. ### Claim 20 (depends on 17) The revolver of claim 17, wherein the upper bearing surfaces of the firing control housing are defined by a laterally spaced pair of projections extending from the firing control housing. ### Claim 21 (depends on 20) The revolver of claim 20, wherein the pair of projections on the firing control housing extend over and at least partially forward of the convex shaped bearing surfaces of the cylinder frame. ### Claim 22 (depends on 16) The revolver of claim 16, wherein the pair of convex shaped bearing surfaces are formed on an axially elongated bulbous portion of the cylinder frame projecting rearward from the rear of the cylinder frame. ### Claim 23 (depends on 22) The revolver of claim 22, wherein the bulbous portion of the cylinder frame has an apex defined by the convex bearing surfaces that is substantially axially aligned with a center pin rod that rotatably supports the cylinder in the cylinder frame. ### Claim 24 (depends on 23) The revolver of claim 23, wherein the convex shaped bearing surface on the cylinder frame includes portions that extend both above and below the center pin rod. ### Claim 25 (depends on 16) The revolver of claim 16, wherein the firing control housing is made of a polymer. ### Claim 26 A method of assembling a revolver having a separable light-weight firing control housing comprising: providing a non-metallic firing control housing; mounting a trigger to the housing; mounting a hammer to the housing for pivotable movement between a cocked and an uncocked position; providing a metallic cylinder frame having a rear end and rotatably supporting a cylinder having a plurality of cartridge-receiving chambers in an opening formed in the cylinder frame; and abuttingly engaging a pair of laterally spaced forward facing concave shaped bearing surfaces disposed on the firing control housing with a mating pair of laterally spaced rearward facing complementary configured convex shaped bearing surfaces disposed on the rear of the cylinder frame for absorbing and distributing recoil forces from discharging the revolver. ### Claim 27 (depends on 26) The method of claim 26, further comprising abuttingly engaging a laterally spaced pair of forward facing upper bearing surfaces disposed on the firing control housing above the concave shaped bearing surfaces with a mating pair of rearward facing upper bearing surfaces disposed on the rear of the cylinder frame above the convex shaped bearing surfaces. ### Claim 28 (depends on 26) The method of claim 26, further comprising longitudinally inserting a retaining pin through a hole in the cylinder frame and engaging the retaining pin with the firing control housing. ### Claim 29 (depends on 28) The method of claim 28, further comprising placing a cylinder crane with the cylinder rotatably mounted thereon into the cylinder frame, and wherein the longitudinally inserting step includes inserting the retaining pin through the hole in the cylinder frame and an aperture in the cylinder crane to secure the cylinder frame and the cylinder crane to the firing control housing. ### Claim 30 (depends on 26) The method of claim 26, wherein the firing control housing is made of a polymer.