Christopher R Irgens

US Patent:

6846002, Jan 25, 2005

Filed:

Jul 30, 2002

Appl. No.:

10/209291

Inventors:

Christopher R. Irgens - Elm Grove WI, US
John Weber - Thiensville WI, US

Assignee:

Master Lock Company - Oakcreek WI

International Classification:

B60D 106

US Classification:

280507, 280511

Abstract:

A lock assembly for securing a trailer including a hitch ball, a lock housing, a lock washer and a nut. The lock housing is placed over the lock washer and nut to prevent the nut from turning. A threaded portion of the hitch ball is placed through a hole in the lock housing and through the lock washer and nut to secure the hitch ball. When a trailer coupler is locked to the ball portion of the hitch ball, the trailer and hitch ball are secure from theft.

US Patent:

6854302, Feb 15, 2005

Filed:

Jul 10, 2002

Appl. No.:

10/192626

Inventors:

John Zapushek - Racine WI, US
Christopher R. Irgens - Elm Grove WI, US

Assignee:

Master Lock Company - Milwaukee WI

International Classification:

E05B073/00
F16K035/00

US Classification:

70 34, 70 58, 70 61, 70178, 70232, 70386, 137383

Abstract:

A tool lock, especially useful in preventing theft or unauthorized use of a tool. The tool lock has a housing in which a lock cylinder assembly and locking balls are disposed. The tool lock housing has an opening at one end in which a portion of a tool, such as a pneumatic fitting on a pneumatic tool, may be inserted and secured by the engagement of the locking balls. The tool lock housing may further include a shackle portion which can be used in conjunction with a cable, either integral or separate, padlock, or chain to secure the tool lock to another object.

US Patent:

6865914, Mar 15, 2005

Filed:

Jul 18, 2002

Appl. No.:

10/197732

Inventors:

Christopher R. Irgens - Elm Grove WI, US
John Zapushek - Racine WI, US

Assignee:

Master Lock Company - Milwaukee WI

International Classification:

F16B041/00

US Classification:

70231, 70 14, 70230, 70232

Abstract:

A lock including a lock body, lock cylinder, a threaded member and an engagement member. The engagement member moves within the lock body to engage the threaded member in at least two different positions. One of the positions allows the lock threaded member to be tightened onto a corresponding threaded connection and then locked into place, thereby securing the object which contains the threaded connection. Another one of the positions allows the lock threaded to be loosened from the corresponding threaded connection and thereby allows the lock to be removed from the object which contains the threaded connection.

US Patent:

7273223, Sep 25, 2007

Filed:

Dec 22, 2004

Appl. No.:

11/020831

Inventors:

Christopher R. Irgens - Elm Grove WI, US
John Weber - Thiensville WI, US

Assignee:

Master Lock Company LLC - Oak Creek WI

International Classification:

B60D 1/06

US Classification:

280511

Abstract:

A trailer hitch ball for use with a trailer hitch, a lock housing, a lock washer and a nut. The trailer hitch ball can be used to secure a trailer to a vehicle. The hitch ball includes a ball portion, a base portion and a threaded portion. The ball portion includes an integral drive member such that when torque is applied to the drive member, force is applied to the ball portion and the ball portion rotates relative to a trailer hitch. The outer surface of the ball portion may define two parallel and opposing tool engaging surfaces. When a trailer coupler is locked to the ball portion, the trailer and trailer hitch ball are secure from theft.

US Patent:

7267355, Sep 11, 2007

Filed:

Dec 27, 2004

Appl. No.:

11/023310

Inventors:

Christopher Irgens - Elm Grove WI, US
Frank Scott - Milwaukee WI, US
John Zapushek - Racine WI, US
Rolf Hohmann - Menomonee Falls WI, US
Mark Van Handel - Milwaukee WI, US
Craig Kottke - Grafton WI, US
Christopher Rhode - West Allis WI, US

Assignee:

Master Lock Company LLC - Oak Creek WI

International Classification:

B60D 1/06

US Classification:

280511

Abstract:

A hitch assembly that includes an anti-rotation mechanism. The hitch assembly generally includes a hitch ball, a ball mount, and a fastener. The invention is directed to a mechanism for preventing rotation of either the hitch ball or the fastener relative to the ball mount. The anti-rotation mechanism of the present invention provides an engagement means for interlocking sections of the hitch ball or fastener with the ball mount, thereby blocking rotation of the hitch ball or fastener relative to the ball mount.

US Patent:

20050001408, Jan 6, 2005

Filed:

Jun 8, 2004

Appl. No.:

10/709947

Inventors:

Christopher Irgens - Elm Grove WI, US
Frank Scott - Milwaukee WI, US
John Zapushek - Racine WI, US
Rolf Hohmann - Menomonee Falls WI, US
Mark Van Handel - Milwaukee WI, US
Craig Kottke - Grafton WI, US
Christopher Rohde - West Allis WI, US

Assignee:

MASTER LOCK COMPANY - Oak Creek WI

International Classification:

B60D001/00

US Classification:

280511000

Abstract:

A hitch assembly that includes an anti-rotation mechanism. The hitch assembly generally includes a hitch ball, a ball mount, and a fastener. The invention is directed to a mechanism for preventing rotation of either the hitch ball or the fastener relative to the ball mount. The anti-rotation mechanism of the present invention provides an engagement means for interlocking sections of the hitch ball or fastener with the ball mount, thereby blocking rotation of the hitch ball or fastener relative to the ball mount.

US Patent:

20060279067, Dec 14, 2006

Filed:

Aug 23, 2006

Appl. No.:

11/508659

Inventors:

Christopher Irgens - Elm Grove WI, US
Frank Scott - Milwaukee WI, US
John Zapushek - Racine WI, US
Rolf Hohmann - Menomonee Falls WI, US
Mark Handel - Milwaukee WI, US
Craig Kottke - Grafton WI, US
Christopher Rohde - West Allis WI, US

International Classification:

B60D 1/06

US Classification:

280511000

Abstract:

A hitch assembly that includes an anti-rotation mechanism. The hitch assembly generally includes a hitch ball, a ball mount, and a fastener. The invention is directed to a mechanism for preventing rotation of either the hitch ball or the fastener relative to the ball mount. The anti-rotation mechanism of the present invention provides an engagement means for interlocking sections of the hitch ball or fastener with the ball mount, thereby blocking rotation of the hitch ball or fastener relative to the ball mount.

US Patent:

20070056339, Mar 15, 2007

Filed:

Sep 13, 2006

Appl. No.:

11/520217

Inventors:

Christopher Irgens - Elm Grove WI, US
Vince Leslie - Greendale WI, US
Rebecca Manthe - Chicago IL, US
Michael Brojanac - Jackson WI, US
Gary Burmesch - Port Washington WI, US

International Classification:

E05B 37/02

US Classification:

070312000

Abstract:

In one exemplary embodiment, a combination lock includes a mechanical locking mechanism, a dial, and an electronic interface. The mechanical locking mechanism includes a locking member movable between a locked condition and an unlocked condition. The dial is assembled with the locking mechanism such that successive rotation of the dial to a series of one or more predetermined rotational positions causes the locking mechanism to move the locking member from the locked condition to the unlocked condition. The electronic interface is configured to translate incremental rotational positions of the dial to corresponding electrical signals and to process the electrical signals and display corresponding incremental positional indicators.