Patent US3834053A successfully refreshed from Google Patents.
US3834053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods and apparatus for detachably assembling the barrel of a firearm
Assignee: JP Sauer and Sohn Machinenbau GmbH
•
Filing: 1973-04-26
•
Granted: 1974-09-10
•
Expires: 1993-04-26
Abstract
Abstract A firearm includes a slit receiver socket for detachably receiving a barrel, and a spacer element disposed between the rear of the barrel and the end of the socket to define the rearmost position of the barrel. The spacer element may include a plurality of discs which are adhered together. Discs may be added to or removed from the spacer element to adjust the size thereof.
Inventors
- 👤 H Bielfeldt
- 👤 C Diehl
- 👤 K Bielfeldt
- 👤 G Bielfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:42
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/48; F41A21/487; F41A21/482
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
In a firearm having a barrel and receiver means; the receiver means including socket means for detachably receiving a rear end portion of a barrel, support means disposed generally beneath said socket means, longitudinal slit means formed in said support means to permit contraction of said socket means, and releasable clamping means for inducing convergence of opposite sides of the slit means to contract said socket means; and axial stop means for defining the rearmost axial position of said barrel; said axial stop means comprising spacer means inserted between an end portion of said barrel and the base of said socket means.
Claim 2
Dependent Claim
102 words
In a firearm having a barrel and receiver means; the receiver means including socket means for detachably receiving a rear end portion of a barrel, support means disposed generally beneath said socket means, longitudinal slit means formed in said support means to permit contraction of said socket means, and releasable clamping means for inducing convergence of opposite sides of the slit means to contract said socket means; and axial stop means for defining the rearmost axial position of said barrel; said axial stop means comprising spacer means inserted between an end portion of said barrel and the base of said socket means.
Claim 3
Dependent Claim
20 words
A firearm according to claim 1 wherein said socket means and the end of said barrel include corresponding thread means.
Claim 4
Dependent Claim
31 words
A firearm according to claim 1 wherein said spacer means comprises a plurality of discs adhesively secured together and disposed between the end walls of said barrel and said socket means.
Claim 5
Dependent Claim
20 words
A firearm according to claim 3 wherein said socket means and the end of said barrel include corresponding thread means.
Claim 6
Dependent Claim
14 words
A firearm according to claim 3 wherein said discs include aligned central apertures therethrough.
Claim 7
Dependent Claim
22 words
A firearm according to claim 1 wherein said spacer means comprises at least one shim, said shim including a central aperture therethrough.
Claim 8
Independent Claim
57 words
A method of adjustably assembling a barrel within a receiver socket of a firearm, said method comprising the steps of: providing a spacer element; inserting said spacer element within said receiver socket; inserting said barrel within said receiver socket such that a portion of said barrel abuts said spacer element; and securing said barrel within said socket.
Claim 9
Independent Claim
57 words
A method of adjustably assembling a barrel within a receiver socket of a firearm, said method comprising the steps of: providing a spacer element; inserting said spacer element within said receiver socket; inserting said barrel within said receiver socket such that a portion of said barrel abuts said spacer element; and securing said barrel within said socket.
Claim 10
Dependent Claim
24 words
The method according to claim 7 wherein said step of providing a spacer element includes the step of adhering together a plurality of shims.
Claim 11
Dependent Claim
33 words
The method according to claim 7 wherein the step of providing a spacer element comprises the step of detaching at least some of a plurality of adhering shims which define said spacer element.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |