Don K Walker

US Patent:

61204161, Sep 19, 2000

Filed:

Sep 24, 1997

Appl. No.:

8/930463

Inventors:

Don F. Walker - Santa Ana CA

International Classification:

A63B 6916

US Classification:

482 57

Abstract:

The invention is an exercise machine (20) for exercising many major muscle groups in the body without stressing the arm or knee joints. An inclined bench (24) mounts rigidly within a frame (22) and in specific relationship to a pair of horizontal axes about which a pair of arm levers (40) and a pair of leg levers (60) pivot, respectively. The arm pivot is located with respect to the bench at the user's shoulder joint, while the leg pivot is located with respect to the bench at the user's hip joint. The rotation of the arm and leg levers (40, 60) may be independent, or may be coupled. The rotation of the arm and leg levers are subject to a torque resistance applied by springs, cables and dead weights, frictional resisted loads, or viscous damping. In one embodiment, the rotation of the arm and leg levers are coupled via a linkage mechanism which drives a locomotive style crank for rotating a flywheel. The flywheel is subject to a braking force by an adjustable means to vary the amount of torque resistance applied to the arm and leg levers.

US Patent:

20190052225, Feb 14, 2019

Filed:

Aug 13, 2017

Appl. No.:

15/675772

Inventors:

- El Segundo CA, US
Don WALKER - Whittier CA, US
John C. NOCERINO - Culver City CA, US
Justin H. LEE - Torrance CA, US

International Classification:

H02S 50/10
G01K 7/16
G01K 1/14

Abstract:

An apparatus for carrying, retrieving, and characterizing temperature and current-voltage properties of a solar cell may include a metal core printed circuit board (PCB). The metal core PCB includes current-voltage and temperature measurement electronics operated by a remote device via a communication unit. The solar cell is embedded onto the metal core PCB by way of a thermally- and electrically-conducting adhesive material. The current-voltage and temperature electronics and the solar cell are thermally connected to the PCB, and are electrically isolated from each other, while residing on the same plane.

US Patent:

20180212144, Jul 26, 2018

Filed:

Jul 27, 2017

Appl. No.:

15/661667

Inventors:

- El Segundo CA, US
Don Walker - Whittier CA, US

International Classification:

H01L 45/00
H01L 51/05
H01L 51/00
G11C 13/02

Abstract:

A carbon nanotube (CNT) single ion memory (or memory device) may include a mobile ion conductor with a CNT on one side and an ion drift electrode (IDE) on the other side. The mobile ion conductor may be used as a transport medium to shuttle ions to and from the CNT and the IDE. The IDE may move the ions towards or away from the CNT.