David D Andrews

Address:

12137 W Brittany Ave, Littleton, CO 80127

VIN:

1GKFK638X7J262173

Make:

GMC

Model:

YUKON

Year:

2007

US Patent:

8587422, Nov 19, 2013

Filed:

Mar 29, 2011

Appl. No.:

13/074830

Inventors:

David Andrews - Ortonville MI, US
Jason Lisseman - Shelby Township MI, US
Jerome Bosch - Romeo MI, US

Assignee:

TK Holdings, Inc. - Auburn Hills MI

International Classification:

B60Q 1/00

US Classification:

340438, 340988

Abstract:

An occupant sensing system for a vehicle includes a pressure sensitive material installed in one or more pressure sensing zones in or around at least one vehicle seat. The pressure sensitive material of each zone is configured to provide an electrical signal to a controller when pressure is applied. The controller determines at least one of occupant presence, position, and classification based on the electrical signal. The pressure sensitive material has at least one of a variable resistance and a variable capacitance based on the amount or type of pressure that is applied to the material. The at least one of a variable resistance and a variable capacitance changes characteristics of the electrical signal.

US Patent:

20110241850, Oct 6, 2011

Filed:

Mar 30, 2011

Appl. No.:

13/076226

Inventors:

Jerome BOSCH - Romeo MI, US
David ANDREWS - Ortonville MI, US
Jason LISSEMAN - Shelby Township MI, US

International Classification:

B62D 1/04
G01M 17/06
F21S 10/00
G08B 3/10

US Classification:

3403846, 74552, 7311702, 116202

Abstract:

A sensor for installation on a steering wheel includes a pressure sensitive material mounted on a base material of the steering wheel. The pressure sensitive material is configured to provide an electrical signal to a controller when pressure is applied. The controller provides a command to a vehicle system based on the electrical signal. The pressure sensitive material has at least one of a variable resistance and a variable capacitance based on the amount or type of pressure that is applied to the material. The electrical signal is based on the at least one of a variable resistance and a variable capacitance.

US Patent:

20110246028, Oct 6, 2011

Filed:

Apr 1, 2011

Appl. No.:

13/078793

Inventors:

Jason LISSEMAN - Shelby Township MI, US
David ANDREWS - Ortonville MI, US
Jerome BOSCH - Romeo MI, US

International Classification:

B62D 1/06
B60R 16/02

US Classification:

701 45

Abstract:

The invention relates to a vehicle safety system includes a steering wheel, a plurality of pressure sensitive sensors located in the steering wheel, and a control unit. The pressure sensitive sensors can be located in different regions of the steering wheel. The pressure sensitive sensors can determine if a driver's hand is pressing upon a respective region of the steering wheel associated with one or more of the plurality of pressure sensitive sensors. The control unit can be configured or programmed to determine if at least one of the driver's hands is pressing upon a region of the steering wheel for a predetermined amount of time.

US Patent:

20130128587, May 23, 2013

Filed:

Nov 9, 2012

Appl. No.:

13/673463

Inventors:

TK Holdings Inc. - Auburn Hilla MI, US
David Andrews - Ortonville MI, US

Assignee:

TK HOLDINGS INC. - Auburn Hills MI

International Classification:

H03K 17/96

US Classification:

362276, 362382

Abstract:

Implementations of the present disclosure provide a human interface including a light emitter and a pressure sensitive material. The pressure sensitive material has electrical properties configured to vary in relation to an amount of pressure applied thereto. The light emitter is coupled to the pressure sensitive material, wherein variation of the electrical properties of the pressure sensitive material causes variation of at least one illumination characteristic. Advantageously, the pressure sensitive material provides an additional control component allowing bundling of controls in a simpler interface. At the same time, operation of the human interface in low-light or distracted environments is facilitated and rendered more intuitive by incorporation of the light emitter into its operation.

US Patent:

20130338847, Dec 19, 2013

Filed:

Apr 15, 2013

Appl. No.:

13/863363

Inventors:

TK Holdings Inc. - , US
David Andrews - Ortonville MI, US
Dwayne Van'tZelfde - Holly MI, US

Assignee:

TK Holdings Inc. - Auburn Hills MI

International Classification:

G05B 11/01

US Classification:

700301

Abstract:

Pressure sensors for sending a plurality of control messages to a system controller are disclosed herein. An example pressure sensor may include: a base; at least first and second conductors; a pressure sensitive material at least partially intervening between the first and second conductors; a memory; a clock; and a processor. The pressure sensitive material may have a composition configured to continuously change at least one electrical property. The processor may be configured to determine a first electrical property using the first and second conductors, associate the first electrical property with a time from the clock and write the first electrical property and the time to the memory. The processor may also be configured to calculate a time-based change in the first electrical property, correlate the time-based change with at least one of the control messages and communicate the at least one of the control messages to the system controller.

US Patent:

20140076063, Mar 20, 2014

Filed:

Sep 17, 2013

Appl. No.:

14/028798

Inventors:

David Andrews - Ortonville MI, US

Assignee:

TK Holdings Inc. - Auburn Hills MI

International Classification:

G01L 1/20

US Classification:

7386268, 977742

Abstract:

A sensor for sensing an application of pressure is disclosed. The sensor includes a substrate, conductive elements and an electroactive layer. First and second conductive elements are supported on the substrate and have elongate edges spaced apart from each other. The electroactive layer has a common surface adhered against the conductive elements. The electroactive layer defines at least one electrical property in a portion of the layer between the conductive elements. The electrical property is configured to vary in relation to a magnitude of the pressure.

US Patent:

20220283662, Sep 8, 2022

Filed:

Mar 21, 2022

Appl. No.:

17/700190

Inventors:

- Auburn Hills MI, US
David Andrews - Ortonville MI, US
Daniel Alt - Auburn Hills MI, US
Nicholas Borgerding - St. Clair Shores MI, US
Jason Peters - Auburn Hills MI, US
Erick Staszak - Clarkston MI, US
Prathap Chandra - Auburn Hills MI, US

International Classification:

G06F 3/041
H01H 13/85
G06F 3/01
G06F 3/16
H01H 13/83
H03K 17/96

Abstract:

Various implementations include a switch assembly that includes a housing and at least two printed circuit boards (PCBs) that are disposed within the housing and are axially arranged relative to each other. One or more force sensors are disposed on one of the PCBs, and, in some implementations, the one or more force sensors receive force input received by a touch overlay plate. Signals from the force sensors are processed to determine a magnitude, acceleration, and/or location of the force input, and a haptic feedback response is received by the touch overlay plate. The haptic feedback response is based on the force magnitude, acceleration, and/or location of input, according to some implementations. Axially arranging the PCBs reduces the footprint of the switch assembly and allows for the inclusion of more electrical components in the switch assembly, according to some implementations.

US Patent:

20210046866, Feb 18, 2021

Filed:

Jun 29, 2020

Appl. No.:

16/915277

Inventors:

- Auburn Hills MI, US
Erick Paul Staszak - Rochester Hills MI, US
David William Andrews - Ortonville MI, US

International Classification:

B60Q 5/00
B60Q 9/00
B60R 21/203
B60R 21/2165

Abstract:

Various implementations of a horn system include one or more force sensors disposed on a first portion of a driver air bag module and one or more actuators disposed on a second portion of the driver air bag module. For example, the force sensors may be disposed adjacent a perimeter of a base plate of the driver air bag module, and the actuators may extend inwardly toward the force sensors from an inner surface of a cover of the driver air bag module, or vice versa. To actuate the horn, the cover is moved axially toward the base plate, causing the actuators to apply force to the force sensors. Force signals received from the force sensors are used by one or more processors to determine characteristics of the force received and/or select a control message for communicating to the horn system based on the force signal characteristics.