David J Janssen

US Patent:

6367298, Apr 9, 2002

Filed:

Sep 14, 1998

Appl. No.:

09/152924

Inventors:

David C. Janssen - Whitefish Bay WI
Brian J. Reetz - Thiensville WI
Ronald J. McGuire - Pewaukee WI
Glenn A. Niles - New Berlin WI

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

E05B 1904

US Classification:

702783, 70395, 70408, 70413

Abstract:

A key assembly for mounting an electronic component in the head of the key. The electronic component is mounted in either an opening such as a bore or recess formed in the key head, or a carrier connected to the heel end of the key shank. In the former case, a closure member such as a plug or adhesively backed panel member is employed to close off the opening. In the latter case, the carrier is encapsulated within a plastic key head.

US Patent:

6367299, Apr 9, 2002

Filed:

Dec 9, 1999

Appl. No.:

09/457984

Inventors:

David C. Janssen - Whitefish bay WI
Brian J. Reetz - Thiensville WI

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

E05B 1904

US Classification:

702783, 70395, 70408, 70413

Abstract:

A key assembly for mounting an electronic component in the head of the key. The electronic component is mounted in either an opening such as a bore or recess formed in the key head, or a carrier connected to the heel end of the key shank. In the former case, a closure member such as a plug or adhesively backed panel member is employed to close off the opening. In the latter case, the carrier is encapsulated within a plastic key head.

US Patent:

6427504, Aug 6, 2002

Filed:

Jan 27, 1998

Appl. No.:

09/014311

Inventors:

David C. Janssen - Whitefish Bay WI
Ronald J. McGuire - Pewaukee WI
William P. Schuster - Germantown WI

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

E05B 1904

US Classification:

702783, 70395, 70408, 70413

Abstract:

A method of decreasing resonant frequency shifting of an electrical circuit mounted on a vehicle key includes providing a frame in an opening in the head portion of a vehicle key and locating the transponder in the frame. The frame comprises substantially rigid non-metallic material, and the frame includes a support structure for supporting the transponder while decreasing forces produced on the transponder by thermal expansion and contraction of the head portion of the key, thereby decreasing shift in the resonance of the electrical circuit of the transponder. The frame, the transponder and the head portion of the key are overmolded providing an outer covering that encloses and protects the transponder.

US Patent:

6617961, Sep 9, 2003

Filed:

Nov 15, 1999

Appl. No.:

09/440579

Inventors:

David C. Janssen - Whitefish Bay WI
Henry Wagner - Oostburg WI
Robert Buczkiewicz - West Bend WI

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

G05B 1900

US Classification:

340 58, 34082569, 34082572, 34082522, 307 101, 341176

Abstract:

A security system for a vehicle comprising a frame and a combination remote keyless entry and passive security system including at least one antenna mounted on the frame.

US Patent:

6948344, Sep 27, 2005

Filed:

Jul 23, 2002

Appl. No.:

10/201633

Inventors:

David C Janssen - Whitefish Bay WI, US

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

E05B049/00

US Classification:

702783, 70395, 70408, 70413

Abstract:

A method of decreasing resonant frequency shifting of an electrical circuit mounted on a vehicle key includes providing a frame in an opening in the head portion of a vehicle key and locating the transponder in the frame. The frame comprises substantially rigid non-metallic material, and the frame includes a support structure for supporting the transponder while decreasing forces produced on the transponder by thermal expansion and contraction of the head portion of the key, thereby decreasing shift in the resonance of the electrical circuit of the transponder. The frame, the transponder and the head portion of the key are overmolded providing an outer covering that encloses and protects the transponder.

US Patent:

6958551, Oct 25, 2005

Filed:

Jun 25, 2002

Appl. No.:

10/179127

Inventors:

David C. Janssen - Whitefish Bay WI, US

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

B60R025/04
H04Q001/00

US Classification:

307 103, 70252, 340 531

Abstract:

A lock for a vehicle-ignition circuit. The lock includes a sleeve, a cylinder rotatably coupled within the sleeve and having a keyway therein that receives a key that allows the cylinder to rotate, and a sensor including a pair of spaced-apart switch contacts and a movable electrically-conductive body. The body is movable between a first position where the body is located away from at least one of the switch contacts and a second position where the body contacts both of the switch contacts. The sensor defines a region in which the sensor is responsive to the effects of an actuator, and is coupled to the sleeve so that the region is located within the rotation of the cylinder and is in an orientation in which the body is located in the first position in the absence of the actuator within the region.

US Patent:

7140213, Nov 28, 2006

Filed:

Feb 21, 2004

Appl. No.:

10/783394

Inventors:

Michael G. Feucht - Menomonee Falls WI, US
David C. Janssen - Whitefish Bay WI, US

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

B60R 25/02

US Classification:

70186, 70252

Abstract:

A lock bolt extendible and retractable by movement of a power transmission assembly driven by an actuator and having a cam thereon which cams against the lock bolt to retract the lock bolt and unlock the steering column. In some embodiments, the cam has a curved surface with varying distance from the axis of rotation of the cam or pivot to improved lock bolt motion. The cam can have a gradual ramp surface to extract a lock bolt even in binding conditions of the lock bolt.

US Patent:

7501595, Mar 10, 2009

Filed:

Oct 6, 2005

Appl. No.:

11/244875

Inventors:

Steven J. Dimig - Plymouth WI, US
David C. Janssen - Shorewood WI, US
Erik Esser - Milwaukee WI, US

Assignee:

Strattec Security Corporation - Milwaukee WI

International Classification:

H01H 3/16

US Classification:

200 6162

Abstract:

Apparatus and method for activating a passive entry system. The motion detector can include a latch input lever, a switch, and a damper. The damper can provide more resistance to the latch input lever in order to transfer motion to the switch in response to fast movement of the door handle. In some embodiments, the motion detector can include a switch actuator, a notched lever, and a switch. Movement of the notched lever can cause the switch actuator to contact the switch. In other embodiments, the motion detector can include a switch actuator, a notched lever, and a magnetic sensor switch. The magnetic sensor switch can include a magnetic switch member that moves in response to a second end of the switch actuator in order to complete a circuit to the passive entry system.