David K Harper

US Patent:

7484765, Feb 3, 2009

Filed:

Apr 19, 2006

Appl. No.:

11/407879

Inventors:

David John Harper - Eugene OR, US

International Classification:

A63C 11/00

US Classification:

280809, 280814, 280816, 280 1427, 280 1421

Abstract:

A snowboard support device for use in lift assist transport. The device may have a base, an extension shaft and a handle member or the like. In one embodiment, the handle serves as a housing to cover the extension shaft in its closed position and provides an engagement surface for non-fixed, gravity-based engagement of a chair lift seat.

US Patent:

20080003069, Jan 3, 2008

Filed:

Jun 18, 2007

Appl. No.:

11/820487

Inventors:

David Harper - Eugene OR, US

International Classification:

B23D 77/04
B23B 5/00
B27G 15/00

US Classification:

408088000, 408227000

Abstract:

A device for removing an inner pipe member of a plastic pipe joint. The device may include a housing that may be releaseably attached to the outside of a pipe joint and a blade structure provided within the housing that is configured to remove the inner member of a pipe joint. The device is configured to securely and releaseably attachment, to remove the desired pipe section without damaging other components, and to leave a finished structure that resembles the original, among other disclosed features.

US Patent:

20080011468, Jan 17, 2008

Filed:

Jun 18, 2007

Appl. No.:

11/820483

Inventors:

David Harper - Eugene OR, US

International Classification:

E21B 29/00

US Classification:

166055300, 166055200

Abstract:

A device for removing an outer pipe member of a plastic pipe joint. The device may include a mechanism that releaseably attaches to the outside of a pipe joint and a blade structure provided about the releaseable attachment mechanism that is configured to remove the outer member of a pipe joint. The device is configured to securely and releasably attachment, to remove the desired pipe section without damaging other components, and to leave a finished structure that resembles the original, among other disclosed features.

US Patent:

20130087850, Apr 11, 2013

Filed:

Oct 11, 2011

Appl. No.:

13/270780

Inventors:

Scott J. Alberhasky - Portland OR, US
David Harper - Battle Ground WA, US

Assignee:

Maxim Integrated Products, Inc. - Sunnyvale CA

International Classification:

H01L 27/088
H01L 21/336

US Classification:

257329, 438268, 257E2706, 257E2141

Abstract:

Semiconductor devices that include a trench with conductive material for connecting a VDMOS device to a LDMOS device are described. The semiconductor devices include a substrate having a first region and a second region, wherein the second region is disposed on the first region. A trench extends from a top surface of the second region to the first region. The semiconductor substrate includes a VDMOS device formed proximate to the top surface of the second region and a LDMOS device that is also formed proximate to the top surface of the second region. The drain region of the VDMOS device is electrically connected to the source region of the LDMOS device by way of a conductive material disposed in the trench.

US Patent:

60147474, Jan 11, 2000

Filed:

Sep 30, 1997

Appl. No.:

8/941520

Inventors:

Aleph Fackenthall - Portland OR
David Harper - Lacey WA
Joseph Bursey - Hillsboro OR
Brad Bickford - Beaverton OR
Brian G. Stern - Hillsboro OR

Assignee:

Intel Corporation - Santa Clara CA

International Classification:

G06F 1300
G06F 300
G06F 116
G08B 1314

US Classification:

713200

Abstract:

A tamper detect device is provided to a chassis of a system. The tamper detect device provides a signal when the chassis is opened while at least a part of the system is under power. In one embodiment, the signal is used to produce an immediate warning. In another embodiment, the tamper detect device is incorporated into the system and the warning is audio. In another embodiment, the warning is continually provided until the chassis cover is closed, the system is unplugged, or the tamper detect device is bypassed. In another embodiment, the system is a computer system.