David E. Mehaffey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: According to various embodiments of the present invention, a tablet arm for a nesting chair including a first rigid support member affixed to a nesting chair, a second rigid support member swivelably coupled to the first rigid support member, a tablet rotatably and slidably coupled to the second rigid support member by a collar, a first stop coupled with the second rigid support member and configured to abut one end of the collar in the tablet's forward operable position, and a second stop coupled with the second rigid support member and configured to abut another end of the collar in the tablet's rearward operable position. According to some embodiments, a plurality of nesting chairs having swiveling rotatable tablets movable from an operable position to a nested position, the tablets positioned over seatbacks of the chairs in the nested position and configured to slide horizontally in the operable position.
June 9, 2006
December 13, 2007
HNI TECHNOLOGIES INC.
David E. Mehaffey, John Robert Koch, Ogden R. Olson, Douglas Alan Schroeder, Jerry D. Zollars
Abstract: A driver measure system aids in determining the physical requirements of a disabled driver in order to modify a van or other vehicle to his or her specific needs. The driver measurement system comprises a frame including tracks for positioning a wheelchair and a control assembly which includes a steering wheel and hand controls. Force adjustment and measurement mechanisms for the steering wheel and hand controls enables a trained technician to evaluate the functional driving ability of the disabled driver. The simulator also provides a structural reference framework for taking anthropometric measurements. The measurements obtained are used to prepare a specification or "mobility prescription" for modifications and adaptive driving equipment needed to customize a vehicle.
September 27, 1993
Date of Patent:
August 30, 1994
NC Dept. of Human Resources, Division of Vocational Rehabilitation Services
Edwin D. Smart, Julie N. Dezern, William B. Pendleton, Kenneth C. Pearson, Allison M. Blui, James R. Machen, David E. Mehaffey, Edmund H. Machen, Edgar B. Montague