RICHARD E MACDONALD
Broker in Lexington, MA

License number
Massachusetts 31660
Issued Date
Dec 1, 1980
Expiration Date
Sep 28, 1998
Type
Salesperson
Address
Address
Lexington, MA 02420

Professional information

Richard Macdonald Photo 1

Cryogenic Storage Box For Microcentrifuge Tubes

US Patent:
5058397, Oct 22, 1991
Filed:
Aug 29, 1990
Appl. No.:
7/574065
Inventors:
Richard E. MacDonald - Lexington MA
Assignee:
USA/Scientific Plastics, Inc. - Ocala FL
International Classification:
F25D 308
US Classification:
624572
Abstract:
The storage box includes a rectangular housing having a chamber filled with a coolant gel, and a plurality of spaced, tube-supporting wells opening at their upper ends on one wall of the housing and having closed ends extending downwardly into said chamber to be surrounded by said coolant gel. A cover which is hingedly connected to the housing, contains a sealed envelope containing more coolant gel, and which is disposed to overlie tubes that are positioned in said wells, when the cover is closed.