Robert C Macarthur

US Patent:

20090093744, Apr 9, 2009

Filed:

Oct 6, 2008

Appl. No.:

12/245826

Inventors:

Robert MacArthur - Irvine CA, US

International Classification:

A61F 5/00

US Classification:

602 22, 602 21

Abstract:

A brace for reducing a metacarpal fracture is presented. The brace comprises a palm plate and a finger trough for receiving a finger having a metacarpal fracture. The trough couples to the palm plate at a proper angle of flexion for reducing the fracture. An individual places the brace on the plamar side of their hand and places the finger having the fracture in the trough. A fastening system holds the brace in a stable position on the hand. The trough maintains the metacarpal-phalangeal joint at the proper angle of flexion while also maintaining necessary axial compression along the finger to reduce the fracture.

US Patent:

20090204047, Aug 13, 2009

Filed:

Oct 6, 2008

Appl. No.:

12/246285

Inventors:

Robert MacArthur - Irvine CA, US

International Classification:

A61F 5/00

US Classification:

602 36, 602 5, 602 6

Abstract:

Quick-release casts are presented. A cast can include multiple layers of material. An inner layer comprising a soft material contacts an affected limb and forms a padded layer. One or more additional layers can wrap around the padded layer to form nested tubular casts. The materials used to form the tubular casts are preferably impregnated with a curable compound capable of hardening to provide rigid support for the limb. Each of the tubular casts can wrap around the affect limb and have an overlapping seam that permanently seals in position upon curing of the curable compound. Each of the tubular casts can include a quick-release fastener that pre-joins sections of the tubular casts together before application to the limb. After the limb heals, the fastener can be undone to remove the cast quickly, quietly, and comfortably without causing undue distress to the patient.

US Patent:

20210061005, Mar 4, 2021

Filed:

Aug 27, 2019

Appl. No.:

16/551869

Inventors:

- Plano TX, US
Justin J. Chow - Los Angeles CA, US
Robert C. MacArthur - Ypsilanti MI, US
Joshua D. Payne - Ann Arbor MI, US

International Classification:

B60B 35/12
B60B 35/18
B60K 7/00
B60K 1/02

Abstract:

A modular axle and motive wheel system comprises: a pair of opposed axle ends and attached axle hubs; a pair of inner motive wheels each comprising an outer surface and configured for radially extending rotatable disposition on the hubs; and a pair of inner electric hub motors each comprising an inner stator and an inner rotor, the inner stators configured for attachment to the axle hubs, the inner rotors configured for attachment to the outer surface of the inner motive wheels, the inner rotors configured for rotation of the inner motive wheels by and about the inner stators; the inner motive wheels configured for attachment of a pair of outer motive wheels each comprising an outer electric hub motor comprising an outer stator configured for selective attachment to the inner stator and an outer rotor configured for attachment to the outer motive wheel and rotation of the outer motive wheels.

US Patent:

20210061095, Mar 4, 2021

Filed:

Aug 27, 2019

Appl. No.:

16/551892

Inventors:

- Plano TX, US
Justin J. Chow - Los Angeles CA, US
Robert C. MacArthur - Ypsilanti MI, US
Joshua D. Payne - Ann Arbor MI, US

International Classification:

B60K 23/08
B60K 17/356
B60K 7/00
B62D 61/10

Abstract:

A variable wheel drive electric vehicle comprises a chassis; a first axle disposed on the chassis comprising: a pair of opposed first axle ends; a pair of first axle hubs attached to the first ends, a pair of motive wheels configured for rotatable disposition on the first hubs, and a pair of electric hub motors each comprising a stator and a rotor, the rotors configured for reversible motive rotation of the motive wheels by and about the stators; a second axle disposed on the chassis comprising: a pair of opposed second axle ends; a pair of second axle hubs attached to the second ends; a pair of non-motive wheels configured for rotatable disposition on the second hubs; and a pair of hub motor blanks each comprising a stator blank and rotor blank, the rotor blanks configured for reversible non-motive rotation of the non-motive wheels by and about the stator blanks.