Alwyn P Johnson

US Patent:

20090287316, Nov 19, 2009

Filed:

May 15, 2009

Appl. No.:

12/467098

Inventors:

BRADLEY DELTON VEATCH - WESTMINSTER CO, US
ALWYN PATRICE JOHNSON - LITTLETON CO, US

International Classification:

A61F 2/54

US Classification:

623 63

Abstract:

A voluntary opening prosthetic split hook terminal device is provided with an adjustable pinch force, functional grasping contours and illumination capabilities. Embodiments of the present invention include a tensioning mechanism that permits adjustment of the tension of a spring member to increase or decrease the pinching force of the device. The tensioning mechanism may be repositioned among multiple positions to vary the tension in a spring member. Movement of the tensioning mechanism utilizes principles of mechanical leverage in a way such that the force applied by the spring member does not need to be directly opposed in order to reposition the tensioning mechanism and the tensioning device will automatically lock into a selected position. Additional embodiments include digits with dual internal edges and logarithmic spiral contours for enhanced grasping of objects. Still further embodiments include illumination for functional and aesthetic purposes.

US Patent:

20100082116, Apr 1, 2010

Filed:

Oct 1, 2009

Appl. No.:

12/572112

Inventors:

ALWYN P. JOHNSON - LITTLETON CO, US
BRADLEY D. VEATCH - WESTMINSTER CO, US
NORMAN J. HABERKORN - PARKER CO, US
RONALD KRENZEL - FREDERICK CO, US

International Classification:

A61F 2/38
A61F 2/30

US Classification:

623 59, 623 57

Abstract:

An upper extremity prosthetic device is provided that comprises three main components, namely, an arm cuff, a forearm section and a distal connector. The arm cuff is adjustable to accommodate lower arms of different sizes. The forearm section may be constructed in certain limited sizes to accommodate different sized forearm residual limbs. The distal connector is designed to connect to any of the forearm section configurations, and the distal connector enables any terminal device to be attached to the connector. The components may be mixed and matched in various combinations to fit the physical dimensions of virtually any amputee. The interchangeable parts will accommodate a wide range of residual limb geometries, overall sizes and lengths. Embodiments of the present invention minimize the need for time and resource-intensive customized fitting and create an affordable, relatively low-cost prosthetic interface.

US Patent:

20160281405, Sep 29, 2016

Filed:

Mar 23, 2016

Appl. No.:

15/079025

Inventors:

Alwyn P. Johnson - Englewood CO, US

International Classification:

E05D 11/08
E05D 3/02
E05D 11/00

Abstract:

An apparatus for joining two members, comprising a central assembly within a first housing, the central assembly comprising a rotor or rotational member, a pin attached at one end to the rotor or rotational member, a base circumferentially disposed about the pin and attached thereto, a resistance member in connection with the pin, at least one compression member in connection with the resistance member, at least one intermediary member disposed between the at least one compression member and the base, a second housing in connection with the pin and first and second arm mechanisms attached at opposing distal ends of the pin.