John Alan Davidson

US Patent:

46784713, Jul 7, 1987

Filed:

Aug 22, 1985

Appl. No.:

6/768284

Inventors:

Philip C. Noble - Houston TX
Hugh S. Tullos - Houston TX
John P. Davidson - Houston TX

International Classification:

A61F 228

US Classification:

623 16

Abstract:

An apparatus and method for making one or more grooves in the medullary canal surface of a bone to secure and reduce the risk of rotational failure of implanted orthopedic endoprostheses. The apparatus includes a head and, attached thereto, a body adapted for insertion into the medullary canal of a bone. The apparatus also includes a channel therethrough that is enclosed in the head and open in the body. One or more grooves is made in the medullary canal surface of a bone by placing the body of the apparatus in the medullary canal, inserting a cutting device in the channel, and then using the cutting device to remove an amount of bone tissue sufficient to form a groove or grooves. The risk of rotational failure of implanted orthopedic endoprostheses is reduced by implanting prostheses that engage and are secured in place by the groove or grooves.

US Patent:

20170134260, May 11, 2017

Filed:

Nov 9, 2015

Appl. No.:

14/935578

Inventors:

- Charlotte NC, US
John Daniel Davidson - Versailles KY, US

International Classification:

H04L 12/707

Abstract:

A network traffic routing apparatus includes a memory and a processor. The processor receives a change to the first production environment and determines a score for deploying the change. The score indicates a probability that the change, when deployed, will conflict with another change from a plurality of scheduled changes. The processor determines an aggregate score by summing the score and a plurality of scores for the plurality of scheduled changes. The processor also determines that the aggregate score is below a threshold and in response to that determination, schedules the deployment of the change. The processor further routes network traffic from the first production environment to the second production environment. The processor deploys the change to the first production environment after the network traffic has been routed to the second production environment, and after the change has been deployed, routes the network traffic back to the first production environment.

Address:

5314 Rutherglenn Dr, Houston, TX 77096

VIN:

5NPEU46F67H270604

Make:

HYUNDAI

Model:

SONATA

Year:

2007