Russell E Klawunn

US Patent:

8424635, Apr 23, 2013

Filed:

Jan 13, 2012

Appl. No.:

13/350605

Inventors:

Russell E. Klawunn - Tucson AZ, US

International Classification:

F41A 21/00

US Classification:

181223, 181227, 181228, 181264, 181270, 181281, 89 144

Abstract:

A firearm suppressor includes an outer housing and a baffle stack mounted inside the outer housing. The baffle stack includes baffles and spacers. The baffles and spacers are configured to allow a projectile to pass through while causing exhausted gas to flow through various chambers and channels in different directions.

US Patent:

20210003359, Jan 7, 2021

Filed:

Mar 17, 2020

Appl. No.:

16/821906

Inventors:

David M. Davis - Tucson AZ, US
Russell E. Klawunn - Tucson AZ, US

International Classification:

F41A 15/14

Abstract:

A biased pivoting spent ammunition cartridge case extractor and retainer mechanism for blowback bolt firearms. The mechanism includes a distal arcuate hook shaped and dimensioned to intimately engage and nest into part of the circumferential groove in front of the cartridge rim. The hook remains engaged during blowback extraction of the casing from the chamber, and prior to ejection of the case from the firearm. The hook is formed onto the distal end of a rocking member secured to the bolt by a medial pivot. A compression spring bears against the opposite, proximal end of the rocking member thereby biasing the hook inwardly toward the counterbore seat on the distal end of the bolt into which the base of the case rests during extraction. A direct gas impingement system overcomes the biasing force of the spring to cause the case to be ejected.

US Patent:

20190226784, Jul 25, 2019

Filed:

Jan 31, 2019

Appl. No.:

16/264132

Inventors:

- Tucson AZ, US
Russell E. Klawunn - Tucson AZ, US

Assignee:

Quarter Circle 10, LLC - Tucson AZ

International Classification:

F41A 15/14

Abstract:

A biased pivoting spent ammunition cartridge case extractor and retainer mechanism for blowback bolt firearms. The mechanism includes a distal arcuate hook shaped and dimensioned to intimately engage and nest into part of the circumferential groove in front of the cartridge rim. The hook remains engaged during blowback extraction of the casing from the chamber, and prior to ejection of the case from the firearm. The hook is formed onto the distal end of a rocking member secured to the bolt by a medial pivot. A compression spring bears against the opposite, proximal end of the rocking member thereby biasing the hook inwardly toward the counterbore seat on the distal end of the bolt into which the base of the case rests during extraction. A direct gas impingement system overcomes the biasing force of the spring to cause the case to be ejected.

US Patent:

20180087857, Mar 29, 2018

Filed:

Sep 21, 2017

Appl. No.:

15/711822

Inventors:

- Tucson AZ, US
Russell E. Klawunn - Tucson AZ, US

Assignee:

Quarter Circle 10, LLC - Tucson AZ

International Classification:

F41A 15/14

Abstract:

A biased pivoting spent ammunition cartridge case extractor and retainer mechanism for blowback bolt firearms. The mechanism includes a distal arcuate hook shaped and dimensioned to intimately engage and nest into part of the circumferential groove in front of the cartridge rim. The hook remains engaged during blowback extraction of the casing from the chamber, and prior to ejection of the case from the firearm. The hook is formed onto the distal end of a rocking member secured to the bolt by a medial pivot. A compression spring bears against the opposite, proximal end of the rocking member thereby biasing the hook inwardly toward the counterbore seat on the distal end of the bolt into which the base of the case rests during extraction. A direct gas impingement system overcomes the biasing force of the spring to cause the case to be ejected.