Patent US3810326A successfully refreshed from Google Patents.
US3810326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction for revolvers
Assignee: Browning Arms Co
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Filing: 1973-03-01
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Granted: 1974-05-14
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Expires: 1993-03-01
Abstract
Abstract A revolver is constructed in two interlocking subassemblies, thereby avoiding the traditional side plate assembly techniques conventional in revolver construction. The first, or frame, subassembly is adapted to receive a cylinder and a crane so that the crane is checked by an internal (hidden) surface. The crane is secured by a pin inserted from inside, thereby avoiding dissimilar surface finishes at the front of the revolver. The second, or trigger guard, subassembly carries the entire firing and indexing mechanisms of the revolver in preassembled condition. The two subassemblies are joined and held in place by a single pin. Each subassembly carries structures which interlock when the revolver is assembled to prevent dry-firing when the cylinder is unlatched and to prevent opening of the cylinder when either the hammer is cocked or the trigger is pulled.
Inventors
- 👤 R Hillberg
- 👤 T Hartog
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:24
CPC Classifications
F; F41; F41A; F41A17/00; F41A17/46; F41C; F41C3/00; F41C3/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
In a revolver, the combination comprising: a frame subassembly with a barrel and a bifurcated rear frame portion including a cylinder-receiving space; a cylinder subassembly, including a crane pivotably mounted to said frame subassembly ahead of said cylinder-receiving space and a cylinder rotatably mounted to the distal end of said crane for swinging into and out of said cylinder-receiving space; and a trigger guard subassembly with a rear handle portion and a channeled frontal pOrtion configurated for matched entry into said bifurcated rear frame portion, said trigger guard subassembly including: firing means, including a trigger, operably mounted within said channeled frontal portion; and indexing means, operably mounted within said channeled frontal portion for rotating said cylinder in response to pulling of said trigger.
Claim 2
Dependent Claim
123 words
In a revolver, the combination comprising: a frame subassembly with a barrel and a bifurcated rear frame portion including a cylinder-receiving space; a cylinder subassembly, including a crane pivotably mounted to said frame subassembly ahead of said cylinder-receiving space and a cylinder rotatably mounted to the distal end of said crane for swinging into and out of said cylinder-receiving space; and a trigger guard subassembly with a rear handle portion and a channeled frontal pOrtion configurated for matched entry into said bifurcated rear frame portion, said trigger guard subassembly including: firing means, including a trigger, operably mounted within said channeled frontal portion; and indexing means, operably mounted within said channeled frontal portion for rotating said cylinder in response to pulling of said trigger.
Claim 3
Dependent Claim
76 words
A combination according to claim 1 including cylinder latch means slidably mounted in said frame subassembly and carrying stop means cooperatively adapted with said indexing means to prevent firing of the revolver when the cylinder is not in its latched condition, said latch means being normally stored, when the cylinder is latched, in a position which permits firing of the revolver but being biased to move into position to prevent firing when the cylinder is unlatched.
Claim 4
Dependent Claim
84 words
A combination according to claim 2 wherein said indexing means includes an indexing lever linked to said trigger so that its distal end moves up to engage and rotate said cylinder when the trigger is pulled and includes a stop element projecting therefrom; the latch means is biased towards said indexing lever and includes a first stop surface which is normally stored behind the vertical path of travel of said stop element but moves to above said stop element when the cylinder is unlatched.
Claim 5
Dependent Claim
37 words
A combination according to claim 3 wherein said latch means includes a second stop surface positioned behind the stop element when the distal end of th index lever moves up, thereby to prevent unlatching of the cylinder.
Claim 6
Dependent Claim
49 words
The combination of claim 1 wherein the cylinder crane is pivotably mounted by means of a pin inserted from the bifurcated rear portion through said crane, said pin being anchored by said subassembly on opposite sides of said crane and being held in place by said trigger guard subassembly.
Claim 7
Independent Claim
172 words
A method for constructing a revolver, which comprises: providing a one-piece frame subassembly with a barrel, a cylinder housing behind the barrel, a bifurcated rear portion extending back from said cylinder housing, and a firing pin housing communicating with both the cylinder housing and the bifurcated rear portion; providing a cylinder subassembly including a cylinder rotatably mounted at one end of a cylinder crane; providing a trigger guard subassembly with a rear handle portion, a channeled frontal portion projecting forward from said rear handle portion, and indexing and firing means operably mounted within said channeled frontal portion; pivotably mounting the end of said cylinder crane opposite said cylinder to said frame subassembly so that said cylinder can be swung into and out of said cylinder housing; slidably mounting a firing pin within said firing pin housing; and joining said trigger guard subassembly to said frame subassembly by sliding said channeled frontal portion into said bifurcated rear portion until said indexing and firing means operably register with said cylinder and said firing pin.
Claim 8
Independent Claim
172 words
A method for constructing a revolver, which comprises: providing a one-piece frame subassembly with a barrel, a cylinder housing behind the barrel, a bifurcated rear portion extending back from said cylinder housing, and a firing pin housing communicating with both the cylinder housing and the bifurcated rear portion; providing a cylinder subassembly including a cylinder rotatably mounted at one end of a cylinder crane; providing a trigger guard subassembly with a rear handle portion, a channeled frontal portion projecting forward from said rear handle portion, and indexing and firing means operably mounted within said channeled frontal portion; pivotably mounting the end of said cylinder crane opposite said cylinder to said frame subassembly so that said cylinder can be swung into and out of said cylinder housing; slidably mounting a firing pin within said firing pin housing; and joining said trigger guard subassembly to said frame subassembly by sliding said channeled frontal portion into said bifurcated rear portion until said indexing and firing means operably register with said cylinder and said firing pin.
Claim 9
Dependent Claim
52 words
A method according to claim 6 wherein the frame subassembly includes a receiving space for said cylinder crane, and the cylinder crane is pivotably mounted to said subassembly by means of a pin inserted from said channeled rear portion to extend through the walls of said receiving space and the cylinder crane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |