David E Trader

US Patent:

20120156715, Jun 21, 2012

Filed:

Jun 9, 2011

Appl. No.:

13/156826

Inventors:

Mark W. Widder - Waynesboro PA, US
Linda Brennan - Middletown MD, US
David Trader - Smithsburg MD, US
Tommy R. Shedd - Middletown MD, US
William H. van der Schalie - Frederick MD, US

International Classification:

C12Q 1/18
C12M 1/34
G01N 27/02
C12Q 1/25

US Classification:

435 32, 4352871

Abstract:

An embodiment of the invention provides a system for toxicity identification in water. The system includes a cell maintenance device having a cooling component that maintains an internal storage area of the cell maintenance device within a temperature range of 4 degrees Celsius to 25 degrees Celsius. Fluidic biochips in the cell maintenance device include one or more testing components for receiving living poikilothermic cells and at least one water test sample. A test unit receives the fluidic biochips and monitors a response to exposure of the poikilothermic cells to the water test sample. In at least one embodiment, the test unit is able to identify the degree of toxicity of the water sample within 60 minutes of receiving the fluidic biochip.

US Patent:

42133149, Jul 22, 1980

Filed:

Dec 27, 1978

Appl. No.:

5/973729

Inventors:

David A. Trader - Reston VA

International Classification:

E05B 6738

US Classification:

70 68

Abstract:

A locking device for a handbag in which one end of the carry strap has a lock bolt thereon which inserts into a lock attached to the handbag adjacent one end of the handbag's access opening and in which the opening for access into the handbag has a slide fastener with an annular handle through which the lock bolt may be passed when being inserted into the lock to lock closed the handbag.