US4463655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linear bearing insert for firearm slide
Assignee: Individual
•
Filing: 1982-12-06
•
Granted: 1984-08-07
•
Expires: 2002-12-06
Abstract
Abstract A linear bearing insert for the slide-receiver ways of a firearm wherein the slide is reciprocably attached to the receiver by a groove and tongue structure. The insert is in the form of a rod, preferably cylindrical, which is disposed in a groove, preferably the receiver groove, and which has a portion of its peripheral surface in sliding engagement with a partially cylindrical groove formed in the side of a corresponding tongue, such that the bearing surfaces in engagement are cylindrical rather than planar. After wear has taken place, causing objectionable play, the insert may be replaced by a larger size insert such as to compensate for wear and eliminate the play.
Inventors
- 👤 Robert R. Krieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:22
CPC Classifications
F; F41; F41C; F41C27/00; F41A; F41A3/00; F41A3/64; F41A3/66
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
74 words
In a firearm having a slide member reciprocable relative to a receiver member, wherein one of said members has a linear planar groove in which is slidably engaged a corresponding linear tongue formed in the other of said members, the improvement consisting of a linear bearing insert fixedly disposed in said groove and having a portion of its peripheral surface slidably engaged in a corresponding groove formed on a side surface of said tongue.
Claim 2
Dependent Claim
74 words
In a firearm having a slide member reciprocable relative to a receiver member, wherein one of said members has a linear planar groove in which is slidably engaged a corresponding linear tongue formed in the other of said members, the improvement consisting of a linear bearing insert fixedly disposed in said groove and having a portion of its peripheral surface slidably engaged in a corresponding groove formed on a side surface of said tongue.
Claim 3
Dependent Claim
15 words
The improvement of claim 1 wherein said insert is in the form of a rod.
Claim 4
Dependent Claim
44 words
The improvement of claim 2 wherein said rod has an end bent over substantially at right angle, and said rod is fixedly attached in said groove by said bent over end portion inserted in a corresponding bore disposed at the bottom of said groove.
Claim 5
Dependent Claim
11 words
The improvement of claim 2 wherein said rod is circularly cylindrical.
Claim 6
Dependent Claim
10 words
The improvement of claim 2 wherein said rod is metallic.
Claim 7
Dependent Claim
14 words
The improvement of claim 5 wherein said rod has a thin coating of polytetrafluoroethylene.
Claim 8
Dependent Claim
20 words
The improvement of claim 1 wherein said linear bearing insert is fixedly disposed in said groove in the receiver member.
Claim 9
Dependent Claim
20 words
The improvement of claim 2 wherein said linear bearing insert is fixedly disposed in said groove in the receiver member.
Claim 10
Dependent Claim
20 words
The improvement of claim 3 wherein said linear bearing insert is fixedly disposed in said groove in the receiver member.
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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |