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Palm wrench for 1911 style pistol barrel bushing

Inactive Publication Date: 2012-11-22
JOHNSON SAM G
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]The present embodiment is specifically designed to safely remove the barrel bushing, recoil spring, and recoil spring plug, or spring plug, while providing the operator with much greater control over the energy store

Problems solved by technology

So, the weakness inherent in the long handled design is a failure to easily apply the required force in the proper direction.
Many practioners of the art would not place any hard object other than a properly sized cleaning rod inside the muzzle of the pistol, due to the possibility of damage to the rifling, which would prove immediately deleterious to accuracy.
Second, the elongate member revealed in Perry make the tool somewhat more cumbersome to transport than the current embodiment.
In summation, pri

Method used

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  • Palm wrench for 1911 style pistol barrel bushing
  • Palm wrench for 1911 style pistol barrel bushing
  • Palm wrench for 1911 style pistol barrel bushing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027]FIG. 1 shows a rear facing view of the generally annularlar body of the claimed embodiment (1) with recess in tool body. (2) and bushing opening (3). The tool body (1) is preferably comprised of any suitable and durable material, including, but not limited to, metal or plastic. The tool body (1) can be formed through various industrial processes such as investment casting, injection molding, wire electrode discharge machining or laser jet cutting.

[0028]FIG. 2 shows a lateral sectioned view of the claimed embodiment. (1)

[0029]FIG. 3 shows a perspective sectioned view of the claimed embodiment (1), with recoil spring trapping recess (2), and bushing opening. (3)

[0030]FIG. 4 shows a side view of the end of the pistol slide (7), including the barrel bushing (5) and the spring plug (6).

[0031]FIG. 5 is a side view of the 1911 style pistol (8).

Operation:

[0032]After insuring the pistol (8) has been unloaded, the operator grasps the slide (7) firmly encircling the end of the slide with...

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PUM

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Abstract

A handgun bushing removal tool, designed to encompass the end of the slide, to facilitate the safe and rapid removal and replacement of the barrel bushing on a 1911 type semi-automatic pistol. The tool contains an aperture generally conforming to the shape of a 1911 barrel bushing, which the bushing passes through, which when held in the palm of the hand, allows direct pressure to be applied to the spring plug while the tool is rotated. The tool is also designed to limit the rotation of the bushing by contacting the slide wall with the end of the slide when the correct amount of rotation has been achieved.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of provisional patent application Ser. No. 61 / 461,838, filed 2011 Jan. 24 by the present inventor.BACKGROUNDPrior Art[0002]The following is a tabulation of some prior art that presently appears relevant:U.S. PatentsPat. No.Kind CodeIssue DatePatentee7,240,450B22007-07-10ShoberD103579S1937-03-16McNaught3,519,046B11970-07-07Pierce7,703,232B12010-04-27Johns4,901,411B11990-02-20Chestnut et alD407,958S1999-04-13Royse7,401,432B12008-07-22Perry4,037,275B11977-07-26Schor6,430,862B12002-08-13Berlin4,483,060B11984-11-20Farrar et al4,878,306B11989-11-07Dyer5,261,136B11993-11-16Hall6,032,398B12000-03-07Carpenter et alD564316S2008-03-18ElkaimD548552S2007-08-14ElkaimD540631S2007-04-17BryantD417372S1999-12-07CachotU.S. Patent Application PublicationsPublication Nr.Kind CodeIssue DateApplicant2005 / 0071925A12005-04-7Smith2005 / 0115399A12005-06-2VaidForeign Patent DocumentsApp orForeign Doc. Nr.Cntry CodeKind CodePub. Dt.P...

Claims

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Application Information

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IPC IPC(8): F41C27/00
CPCF41A11/00
Inventor JOHNSON, SAM G.
Owner JOHNSON SAM G
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