Other

Mekanika, Inc

David C Holmes

Frederick J Holmes

Mark D Brown

Apparatus and method for measuring spinal instability through the use of a distractor arm assembly having segments pivotal with respect to each other and movable through the movement of a pivotal collar assembly along a centrally positioned jackscrew.

Apparatus and method for measuring instability of a motion segment unit of a spine

A heavy-duty scraping and rake attachment for excavator buckets for clearing brush-covered earth. The attachment is easily mountable to the bucket, thus avoiding the work and expense of removing the bucket from the arm. The scraper portion provides for offset toothed scrapers, a combination of toothed scraper and blade, and blade only use and is used in conjunction with a heavy-duty rake and power-operated thumb to grasp and remove the material rooted or scraped up from the earth by the scraper. The scraper portion and rake are included in a single unit, attachable and detachable from the excavator bucket. Scraper and blade attachments either detachably connected to the unit with bolts or permanently welded in place as desired.

Scraper and rake attachment for excavator bucket

The apparatus for attaching an accessory to an excavator is a device for attaching a grader blade, brush blade, compactor, or other accessory to the bucket of an excavator. The apparatus has a body to which the accessory is attached which has a pair of hooks which slide between adjacent pairs of teeth on an edge of the excavator bucket and a pair of chains attached to the rear of the bucket and tightened by load binders to retain the apparatus on the excavator bucket. The apparatus provides for pivoting the accessory laterally, and may optionally provide for tilting the accessory in a vertical plane.

Apparatus for attaching an accessory to an excavator

An apparatus and method for measuring spinal instability provides a vertebrae distractor having a pair of distractor arms driven by a motor which separate adjacent vertebrae of a motion segment unit of the spine at a constant rate of distraction up to a predetermined maximum force and measuring the resistance of the adjacent vertebrae to the force. The changes in the resistance to distraction are detected and recorded. The data thus provided is then compared to predetermined standards. A determination concerning further treatment of the subject patient may be based upon the results obtained.

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Miami, FL, United States of America

David C Holmes