John Edward Swenson

US Patent:

41780582, Dec 11, 1979

Filed:

Jun 8, 1978

Appl. No.:

5/913581

Inventors:

John H. Swenson - Big Lake MN

International Classification:

H01R 1338
H01R 1354

US Classification:

339108TP

Abstract:

All of the pairs of insulated telephone lines in a long line cable are spliced at the same intervals and the splices are situated in junction boxes where linemen can have access to both junctions of each pair. Each line splice consists of a metallic splice bar forced into electrical contact with each of the parallel, spaced-apart ends of the line, the splice bar and both line ends being encased in a splice body of plastic, dielectric material which is provided with an access opening through to the splice bar between the spaced apart lines. A continuity check probe of the invention includes a metallic hook-shape rod having a short finger of shape and dimension to pass through the body access opening to contact the splice bar when a parallel, spaced-apart long finger of the rod lies in parallel, adjacent relation to the splice body. The long finger of the probe rod carries a compression coil spring acting between the outer end of the long finger and the insulating body to hold the short rod finger firmly against the splice bar. The spliced line can then be tested by fastening the test instrument to the hook-shape rod.

US Patent:

20200284567, Sep 10, 2020

Filed:

Feb 12, 2020

Appl. No.:

16/788502

Inventors:

- Anoka MN, US
Drew L. Goodlin - Isanti MN, US
Erik K. Carlson - Oak Grove MN, US
Lawrence P. Head - Cambridge MN, US
John W. Swenson - Ham Lake MN, US
Sharon Jones - Dayton MN, US

International Classification:

F42B 30/02
F42B 5/24
F42B 14/04
F42B 14/02
F42B 12/76
F42B 8/04
F42B 5/38
F42B 14/06
F41C 9/08
F41C 7/11
F41A 9/37
F41A 3/58
F42B 12/74

Abstract:

Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel.

US Patent:

20180321022, Nov 8, 2018

Filed:

Jul 24, 2018

Appl. No.:

16/044183

Inventors:

- Farmington UT, US
Drew L. Goodlin - Isanti MN, US
Erik K. Carlson - Oak Grove MN, US
Lawrence P. Head - Cambridge MN, US
John W. Swenson - Ham Lake MN, US
Sharon Jones - Dayton MN, US

International Classification:

F42B 30/02
F42B 5/24
F42B 14/04
F42B 14/02
F42B 12/76
F42B 8/04
F42B 5/38
F41C 9/08
F41C 7/11
F41A 9/37
F41A 3/58
F42B 14/06

Abstract:

Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel.

US Patent:

20170307347, Oct 26, 2017

Filed:

Feb 7, 2017

Appl. No.:

15/426885

Inventors:

- Farmington UT, US
Drew L. GOODLIN - Isanti MN, US
Erik K. CARLSON - Oak Grove MN, US
Lawrence P. HEAD - Cambridge MN, US
John W. SWENSON - Ham Lake MN, US
Sharon JONES - Dayton MN, US

International Classification:

F42B 30/02
F42B 14/02
F42B 8/04
F41C 9/08
F41A 3/58
F41C 9/08
F41C 7/11
F41A 9/37
F42B 14/06
F42B 5/38

Abstract:

Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel.

US Patent:

20160091289, Mar 31, 2016

Filed:

Sep 29, 2015

Appl. No.:

14/869619

Inventors:

- Clearfield UT, US
Drew L. GOODLIN - Isanti MN, US
Erik K. CARLSON - Oak Grove MN, US
Lawrence P. HEAD - Cambridge MN, US
John W. SWENSON - Ham Lake MN, US
Sharon JONES - Dayton MN, US

International Classification:

F42B 12/20

Abstract:

A bullet assembly comprising a bullet and a cup assembly, the cup assembly may have a ring portion for scraping the barrel of a muzzleloader. The cup assembly may be slidable on the bullet with an extended position and a contracted position, the contracted position having a greater diameter than the extended position. A contraction inhibiting member that requires shearing off of the member for contraction may be disposed on one of the components.

US Patent:

20140130699, May 15, 2014

Filed:

Sep 30, 2013

Appl. No.:

14/041648

Inventors:

- Minneapolis MN, US
Drew L. Goodlin - Isanti MN, US
Erik K. Carlson - Oak Grove MN, US
Lawrence P. Head - Cambridge MN, US
John W. Swenson - Ham Lake MN, US
Sharon Jones - Dayton MN, US

International Classification:

F42B 30/02
F42B 14/00
F42B 12/76

US Classification:

102520

Abstract:

A bullet system including a bullet body with a tail portion engaged with a polymer cup that provides enhanced engagement of the barrel upon firing. The bullet system may have a radial retracted state that corresponds to an elongated axial state of the bullet system that allows the cupped bullet to be fed down the barrel at a reduced diameter with reduced engagement with the barrel. The radial expansion of the bullet system occurs upon axial length reduction of the bullet system by axial compression. The axial compression can occur upon firing of the propellant or when loading with the ramrod. The bullet system can provide a tactile seat force indicator tip insert within the tip of the bullet body that provides a tactile sensation when the bullet is properly seated against the propellant charge. A cutting edge may be provided for scraping the barrel upon insertion of the bullet.

US Patent:

20140090284, Apr 3, 2014

Filed:

Sep 30, 2013

Appl. No.:

14/041452

Inventors:

- Minneapolis MN, US
Drew L. Goodlin - Isanti MN, US
Erik K. Carlson - Oak Grove MN, US
Lawrence P. Head - Cambridge MN, US
John W. Swenson - Ham Lake MN, US
Sharon Jones - Dayton MN, US

International Classification:

F42B 5/02
F42B 33/00
F41C 9/08

US Classification:

42 51, 102430, 86 23

Abstract:

Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The breech end accepts the propellant and means are provided to prevent breech loading of the projectile. A propellant cartridge conforms to a constriction portion to minimize ullage. A projectile is inserted in the muzzle end seats on the constriction portion. The propellant cartridge may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The cartridge may have a primer mechanism integrated into a proximal end. Projectiles have sliding components that have an axial elongate position and an axial shortened position and may be loaded with a ramrod having an engagement portion for each of the two pieces whereby the projectile doesn't prematurely collapse.

US Patent:

20140090285, Apr 3, 2014

Filed:

Sep 30, 2013

Appl. No.:

14/041951

Inventors:

- Minneapolis MN, US
Drew L. Goodlin - Isanti MN, US
Erik K. Carlson - Oak Grove MN, US
Lawrence P. Head - Cambridge MN, US
John W. Swenson - Ham Lake MN, US
Sharon Jones - Dayton MN, US

International Classification:

F41A 3/00
F41C 9/08

US Classification:

42 51, 42 90

Abstract:

A muzzle-loader bullet system includes a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The muzzleloader accepts in the breech end the propellant containment vessel that abuts against a constriction portion with a reduced diameter portion. The propellant containment vessel having an end portion with a tapered surface that conforms to the constriction portion surface. A projectile is inserted in the muzzle end and seats against the constriction portion. The propellant containment vessel may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The containment vessel further comprises a primer mechanism that may be integrated into the proximal end of the containment vessel.